S-1137C35-U5T1U - Seiko Instruments USA, Inc.

S-1137 Series

www.sii-ic.com

HIGH RIPPLE-REJECTION LOW DROPOUT

SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Seiko Instruments Inc. 1

S-1137 Series, developed using the CMOS technology, is a positive voltage regulator IC which has the low dropout voltage,

the high-accuracy output voltage and the soft-start function (300 mA output current).

A 1.0 μF small ceramic capacitor can be used. It operates with low current consumption of 45 μA typ.

The overcurrent protection circuit prevents the load current from exceeding the capacitance of output transistor. The

power-off circuit ensures longer battery life.

Compared to the conventional CMOS technology regulator ICs, various capacitors including small ceramic capacitors can be

used for this IC.

Furthermore a small SOT-89-5, SOT-23-5, and SNT - 6A(H) packages realize high-density mounting.

 Features

• Output voltage: 1.2 V to 3.5 V, selectable in 0.05 V step.

• Low equivalent series resistance capacitor : Ceramic capacitor of 1.0 μF or more can be used as the I/O capacitor.

• Wide input voltage range: 1.7 V to 5.5 V

• High-accuracy output voltage: ±1.0% (1.2 V to 1.45 V output product : ±15 mV)

• Low dropout voltage: 210 mV typ. (products having the output of 2.8 V, IOUT = 300 mA)

• Low current consumption: During operation: 45 μA typ., 65 μA max.

During power-off: 0.1 μA typ., 1.0 μA max.

• Output current: Possible to output 300 mA (at VIN ≥ VOUT(S) + 1.0 V)*1

• Soft-start circuit with external capacitor: Soft-start time : 0.7 ms (CSS = 1.0 nF)

• High ripple rejection: 70 dB typ. (at 1.0 kHz)

• Built-in overcurrent protection circuit: limits overcurrent of output transistor

• Built-in power-off circuit: Ensures long battery life.

• Discharge shunt circuit can be selected.

• Pull-down resistor is selectable

• Lead-free, Sn 100%, halogen-free*2

*1. Attention should be paid to the power dissipation of the package when the out put current is large.

*2. Refer to “ Product Name Structure” for details.

 Applications

• Power supply for battery-powered devices

• Power supply for cellular phones, portable devices

• Power supply for digital still cameras, TVs, DVD recorders

 Packages

• SOT-89-5

• SOT-23-5

• SNT-6A(H)

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

 Block Diagrams

1. S-1137 Series A type

Function Status

ON / OFF logic Active “H”

Discharge shunt

function Available

Pull-down resistor Available

VSS

ON / OFF

VIN VOUT

Overcurrent

protection circuit

Reference

voltage circuit

−

Power-off

circuit

Soft start

circuit

SSC

*1. Parasitic diode

Figure 1

2. S-1137 Series B type

Function Status

ON / OFF logic Active “H”

Discharge shunt

function Available

Pull-down resistor None

VSS

ON / OFF

VIN VOUT

Overcurrent

protection circuit

Reference

voltage circuit

−

Power-off

circuit

Soft start

circuit

SSC

*1. Parasitic diode

Figure 2

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 3

3. S-1137 Series C type

Function Status

ON / OFF logic Active “H”

Discharge shunt

function None

Pull-down resistor Available

VSS

ON / OFF

VIN VOUT

Overcurrent

protection circuit

Reference

voltage circuit

−

Power-off

circuit

Soft start

circuit

SSC

*1. Parasitic diode

Figure 3

4. S-1137 Series D type

Function Status

ON / OFF logic Active “H”

Discharge shunt

function None

Pull-down resistor None

VSS

ON / OFF

VIN VOUT

Overcurrent

protection circuit

Reference

voltage circuit

−

Power-off

circuit

Soft start

circuit

SSC

*1. Parasitic diode

Figure 4

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

 Product Name Structure

Users can select the product type, output voltage, and package type for the S-1137 Series. Refer to “1. Product

name” regarding the contents of product name, “2. Function list of product type” regarding the product type, “3.

Package” regarding the package drawings.

1. Product name

(1) SOT-89-5, SNT-6A(H)

S-1137 x xx − xxxx x

Product type*3

A to D

Package abbreviation and IC packing specifications*1

U5T1: SOT-89-5, Tape

I6T2: SNT-6A(H), Tape

Output voltage*2

12 to 35

(e.g., when the output voltage is 1.2 V, it is expressed as 12.)

Environmental code

U: Lead-free (Sn 100%), halogen-free

G: Lead-free (for details, please contact our sales office)

*1. Refer to the tape specifications.

*2. If you request the product which has 0.05 V step, contact our sales office.

*3. Refer to “2. Function list of product type”.

(2) SOT-23-5

S-1137 x xx − M5T1 x

Product type*3

A to D

Package abbreviation and IC packing specifications*1

M5T1: SOT-23-5, Tape

Output voltage*2

12 to 35

(e.g., when the output voltage is 1.2 V, it is expressed as 12.)

Environmental code

U: Lead-free (Sn 100%), halogen-free

S: Lead-free, halogen-free

*1. Refer to the tape specifications.

*2. If you request the product which has 0.05 V step, contact our sales office.

*3. Refer to “2. Function list of product type”.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 5

2. Function list of product type

Table 1

Product Type

ON / OFF Logic Discharge Shunt Function Pull-down Resistor

A Active “H” Available Available

B Active “H” Available None

C Active “H” None Available

D Active “H” None None

3. Package

Drawing Code

Package Name Package Tape Reel Land

SOT-89-5 UP005-A-P-SD UP005-A-C-SD UP005-A-R-SD

⎯

SOT-23-5 MP005-A-P-SD MP005-A-C-SD MP005-A-R-SD

⎯

SNT-6A(H) PI006-A-P-SD PI006-A-C-SD PI006-A-R-SD PI006-A-L-SD

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

3. Product name list

3. 1 S-1137 Series A type

ON / OFF logic: Active “H”

Discharge shunt function: Available Pull-down resistor: Available

Table 2

Output Voltage SOT-89-5 SOT-23-5

SNT-6A(H)

1.2 V ±15 mV S-1137A12-U5T1x S-1137A12-M5T1y S-1137A12-I6T2x

1.3 V ±15 mV S-1137A13-U5T1x S-1137A13-M5T1y S-1137A13-I6T2x

1.4 V ±15 mV S-1137A14-U5T1x S-1137A14-M5T1y S-1137A14-I6T2x

1.5 V ±1.0% S-1137A15-U5T1x S-1137A15-M5T1y S-1137A15-I6T2x

1.6 V ±1.0% S-1137A16-U5T1x S-1137A16-M5T1y S-1137A16-I6T2x

1.7 V ±1.0% S-1137A17-U5T1x S-1137A17-M5T1y S-1137A17-I6T2x

1.8 V ±1.0% S-1137A18-U5T1x S-1137A18-M5T1y S-1137A18-I6T2x

1.85 V ±1.0% S-1137A1J-U5T1x S-1137A1J-M5T1y S-1137A1J-I6T2x

1.9 V ±1.0% S-1137A19-U5T1x S-1137A19-M5T1y S-1137A19-I6T2x

2.0 V ±1.0% S-1137A20-U5T1x S-1137A20-M5T1y S-1137A20-I6T2x

2.1 V ±1.0% S-1137A21-U5T1x S-1137A21-M5T1y S-1137A21-I6T2x

2.2 V ±1.0% S-1137A22-U5T1x S-1137A22-M5T1y S-1137A22-I6T2x

2.3 V ±1.0% S-1137A23-U5T1x S-1137A23-M5T1y S-1137A23-I6T2x

2.4 V ±1.0% S-1137A24-U5T1x S-1137A24-M5T1y S-1137A24-I6T2x

2.5 V ±1.0% S-1137A25-U5T1x S-1137A25-M5T1y S-1137A25-I6T2x

2.6 V ±1.0% S-1137A26-U5T1x S-1137A26-M5T1y S-1137A26-I6T2x

2.7 V ±1.0% S-1137A27-U5T1x S-1137A27-M5T1y S-1137A27-I6T2x

2.8 V ±1.0% S-1137A28-U5T1x S-1137A28-M5T1y S-1137A28-I6T2x

2.85 V ±1.0% S-1137A2J-U5T1x S-1137A2J-M5T1y S-1137A2J-I6T2x

2.9 V ±1.0% S-1137A29-U5T1x S-1137A29-M5T1y S-1137A29-I6T2x

3.0 V ±1.0% S-1137A30-U5T1x S-1137A30-M5T1y S-1137A30-I6T2x

3.1 V ±1.0% S-1137A31-U5T1x S-1137A31-M5T1y S-1137A31-I6T2x

3.2 V ±1.0% S-1137A32-U5T1x S-1137A32-M5T1y S-1137A32-I6T2x

3.3 V ±1.0% S-1137A33-U5T1x S-1137A33-M5T1y S-1137A33-I6T2x

3.4 V ±1.0% S-1137A34-U5T1x S-1137A34-M5T1y S-1137A34-I6T2x

3.5 V ±1.0% S-1137A35-U5T1x S-1137A35-M5T1y S-1137A35-I6T2x

Remark 1. Please contact our sales office for products with specifications other than the above.

2. x: G or U

y: S or U

3. Please select products of environmental code = U for Sn 100%, halogen-free products.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 7

3. 2 S-1137 Series B type

ON / OFF logic: Active “H”

Discharge shunt function: Available Pull-down resistor: None

Table 3

Output Voltage SOT-89-5 SOT-23-5

SNT-6A(H)

1.2 V ±15 mV S-1137B12-U5T1x S-1137B12-M5T1y S-1137B12-I6T2x

1.3 V ±15 mV S-1137B13-U5T1x S-1137B13-M5T1y S-1137B13-I6T2x

1.4 V ±15 mV S-1137B14-U5T1x S-1137B14-M5T1y S-1137B14-I6T2x

1.5 V ±1.0% S-1137B15-U5T1x S-1137B15-M5T1y S-1137B15-I6T2x

1.6 V ±1.0% S-1137B16-U5T1x S-1137B16-M5T1y S-1137B16-I6T2x

1.7 V ±1.0% S-1137B17-U5T1x S-1137B17-M5T1y S-1137B17-I6T2x

1.8 V ±1.0% S-1137B18-U5T1x S-1137B18-M5T1y S-1137B18-I6T2x

1.85 V ±1.0% S-1137B1J-U5T1x S-1137B1J-M5T1y S-1137B1J-I6T2x

1.9 V ±1.0% S-1137B19-U5T1x S-1137B19-M5T1y S-1137B19-I6T2x

2.0 V ±1.0% S-1137B20-U5T1x S-1137B20-M5T1y S-1137B20-I6T2x

2.1 V ±1.0% S-1137B21-U5T1x S-1137B21-M5T1y S-1137B21-I6T2x

2.2 V ±1.0% S-1137B22-U5T1x S-1137B22-M5T1y S-1137B22-I6T2x

2.3 V ±1.0% S-1137B23-U5T1x S-1137B23-M5T1y S-1137B23-I6T2x

2.4 V ±1.0% S-1137B24-U5T1x S-1137B24-M5T1y S-1137B24-I6T2x

2.5 V ±1.0% S-1137B25-U5T1x S-1137B25-M5T1y S-1137B25-I6T2x

2.6 V ±1.0% S-1137B26-U5T1x S-1137B26-M5T1y S-1137B26-I6T2x

2.7 V ±1.0% S-1137B27-U5T1x S-1137B27-M5T1y S-1137B27-I6T2x

2.8 V ±1.0% S-1137B28-U5T1x S-1137B28-M5T1y S-1137B28-I6T2x

2.85 V ±1.0% S-1137B2J-U5T1x S-1137B2J-M5T1y S-1137B2J-I6T2x

2.9 V ±1.0% S-1137B29-U5T1x S-1137B29-M5T1y S-1137B29-I6T2x

3.0 V ±1.0% S-1137B30-U5T1x S-1137B30-M5T1y S-1137B30-I6T2x

3.1 V ±1.0% S-1137B31-U5T1x S-1137B31-M5T1y S-1137B31-I6T2x

3.2 V ±1.0% S-1137B32-U5T1x S-1137B32-M5T1y S-1137B32-I6T2x

3.3 V ±1.0% S-1137B33-U5T1x S-1137B33-M5T1y S-1137B33-I6T2x

3.4 V ±1.0% S-1137B34-U5T1x S-1137B34-M5T1y S-1137B34-I6T2x

3.5 V ±1.0% S-1137B35-U5T1x S-1137B35-M5T1y S-1137B35-I6T2x

Remark 1. Please contact our sales office for products with specifications other than the above.

2. x: G or U

y: S or U

3. Please select products of environmental code = U for Sn 100%, halogen-free products.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

3. 3 S-1137 Series C type

ON / OFF logic: Active “H”

Discharge shunt function: None Pull-down resistor: Available

Table 4

Output Voltage SOT-89-5 SOT-23-5

SNT-6A(H)

1.2 V ±15 mV S-1137C12-U5T1x S-1137C12-M5T1y S-1137C12-I6T2x

1.3 V ±15 mV S-1137C13-U5T1x S-1137C13-M5T1y S-1137C13-I6T2x

1.4 V ±15 mV S-1137C14-U5T1x S-1137C14-M5T1y S-1137C14-I6T2x

1.5 V ±1.0% S-1137C15-U5T1x S-1137C15-M5T1y S-1137C15-I6T2x

1.6 V ±1.0% S-1137C16-U5T1x S-1137C16-M5T1y S-1137C16-I6T2x

1.7 V ±1.0% S-1137C17-U5T1x S-1137C17-M5T1y S-1137C17-I6T2x

1.8 V ±1.0% S-1137C18-U5T1x S-1137C18-M5T1y S-1137C18-I6T2x

1.85 V ±1.0% S-1137C1J-U5T1x S-1137C1J-M5T1y S-1137C1J-I6T2x

1.9 V ±1.0% S-1137C19-U5T1x S-1137C19-M5T1y S-1137C19-I6T2x

2.0 V ±1.0% S-1137C20-U5T1x S-1137C20-M5T1y S-1137C20-I6T2x

2.1 V ±1.0% S-1137C21-U5T1x S-1137C21-M5T1y S-1137C21-I6T2x

2.2 V ±1.0% S-1137C22-U5T1x S-1137C22-M5T1y S-1137C22-I6T2x

2.3 V ±1.0% S-1137C23-U5T1x S-1137C23-M5T1y S-1137C23-I6T2x

2.4 V ±1.0% S-1137C24-U5T1x S-1137C24-M5T1y S-1137C24-I6T2x

2.5 V ±1.0% S-1137C25-U5T1x S-1137C25-M5T1y S-1137C25-I6T2x

2.6 V ±1.0% S-1137C26-U5T1x S-1137C26-M5T1y S-1137C26-I6T2x

2.7 V ±1.0% S-1137C27-U5T1x S-1137C27-M5T1y S-1137C27-I6T2x

2.8 V ±1.0% S-1137C28-U5T1x S-1137C28-M5T1y S-1137C28-I6T2x

2.85 V ±1.0% S-1137C2J-U5T1x S-1137C2J-M5T1y S-1137C2J-I6T2x

2.9 V ±1.0% S-1137C29-U5T1x S-1137C29-M5T1y S-1137C29-I6T2x

3.0 V ±1.0% S-1137C30-U5T1x S-1137C30-M5T1y S-1137C30-I6T2x

3.1 V ±1.0% S-1137C31-U5T1x S-1137C31-M5T1y S-1137C31-I6T2x

3.2 V ±1.0% S-1137C32-U5T1x S-1137C32-M5T1y S-1137C32-I6T2x

3.3 V ±1.0% S-1137C33-U5T1x S-1137C33-M5T1y S-1137C33-I6T2x

3.4 V ±1.0% S-1137C34-U5T1x S-1137C34-M5T1y S-1137C34-I6T2x

3.5 V ±1.0% S-1137C35-U5T1x S-1137C35-M5T1y S-1137C35-I6T2x

Remark 1. Please contact our sales office for products with specifications other than the above.

2. x: G or U

y: S or U

3. Please select products of environmental code = U for Sn 100%, halogen-free products.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 9

3. 4 S-1137 Series D type

ON / OFF logic: Active “H”

Discharge shunt function: None Pull-down resistor: None

Table 5

Output Voltage SOT-89-5 SOT-23-5

SNT-6A(H)

1.2 V ±15 mV S-1137D12-U5T1x S-1137D12-M5T1y S-1137D12-I6T2x

1.3 V ±15 mV S-1137D13-U5T1x S-1137D13-M5T1y S-1137D13-I6T2x

1.4 V ±15 mV S-1137D14-U5T1x S-1137D14-M5T1y S-1137D14-I6T2x

1.5 V ±1.0% S-1137D15-U5T1x S-1137D15-M5T1y S-1137D15-I6T2x

1.6 V ±1.0% S-1137D16-U5T1x S-1137D16-M5T1y S-1137D16-I6T2x

1.7 V ±1.0% S-1137D17-U5T1x S-1137D17-M5T1y S-1137D17-I6T2x

1.8 V ±1.0% S-1137D18-U5T1x S-1137D18-M5T1y S-1137D18-I6T2x

1.85 V ±1.0% S-1137D1J-U5T1x S-1137D1J-M5T1y S-1137D1J-I6T2x

1.9 V ±1.0% S-1137D19-U5T1x S-1137D19-M5T1y S-1137D19-I6T2x

2.0 V ±1.0% S-1137D20-U5T1x S-1137D20-M5T1y S-1137D20-I6T2x

2.1 V ±1.0% S-1137D21-U5T1x S-1137D21-M5T1y S-1137D21-I6T2x

2.2 V ±1.0% S-1137D22-U5T1x S-1137D22-M5T1y S-1137D22-I6T2x

2.3 V ±1.0% S-1137D23-U5T1x S-1137D23-M5T1y S-1137D23-I6T2x

2.4 V ±1.0% S-1137D24-U5T1x S-1137D24-M5T1y S-1137D24-I6T2x

2.5 V ±1.0% S-1137D25-U5T1x S-1137D25-M5T1y S-1137D25-I6T2x

2.6 V ±1.0% S-1137D26-U5T1x S-1137D26-M5T1y S-1137D26-I6T2x

2.7 V ±1.0% S-1137D27-U5T1x S-1137D27-M5T1y S-1137D27-I6T2x

2.8 V ±1.0% S-1137D28-U5T1x S-1137D28-M5T1y S-1137D28-I6T2x

2.85 V ±1.0% S-1137D2J-U5T1x S-1137D2J-M5T1y S-1137D2J-I6T2x

2.9 V ±1.0% S-1137D29-U5T1x S-1137D29-M5T1y S-1137D29-I6T2x

3.0 V ±1.0% S-1137D30-U5T1x S-1137D30-M5T1y S-1137D30-I6T2x

3.1 V ±1.0% S-1137D31-U5T1x S-1137D31-M5T1y S-1137D31-I6T2x

3.2 V ±1.0% S-1137D32-U5T1x S-1137D32-M5T1y S-1137D32-I6T2x

3.3 V ±1.0% S-1137D33-U5T1x S-1137D33-M5T1y S-1137D33-I6T2x

3.4 V ±1.0% S-1137D34-U5T1x S-1137D34-M5T1y S-1137D34-I6T2x

3.5 V ±1.0% S-1137D35-U5T1x S-1137D35-M5T1y S-1137D35-I6T2x

Remark 1. Please contact our sales office for products with specifications other than the above.

2. x: G or U

y: S or U

3. Please select products of environmental code = U for Sn 100%, halogen-free products.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

 Pin Configurations

Table 6

Pin No. Symbol Description

1 VOUT Output voltage pin

2 VSS GND pin

3 SSC

Pin for soft-start control*1

4 ON / OFF ON / OFF pin

5 VIN Input voltage pin

5 4

1 3 2

SOT-89-5

Top vie

*1. Connect a capacitor between the SSC and VSS pins. By this

capacitor’s value, the rising speeds of VOUT at power-on and at

turn-on the ON / OFF pin are adjustable.

For details, refer to “■ Selection of Capacitor for Soft-star

(CSS)”.

Figure 5

Table 7

Pin No. Symbol Description

1 VIN Input voltage pin

2 VSS GND pin

3 ON / OFF ON / OFF pin

4 SSC

Pin for soft-start control*1

5 VOUT Output voltage pin

5 4

1 3 2

SOT-23-5

Top view

*1. Connect a capacitor between the SSC and VSS pins. By this

capacitor’s value, the rising speeds of VOUT at power-on and at

turn-on the ON / OFF pin are adjustable.

For details, refer to “■ Selection of Capacitor for Soft-star

(CSS)”.

Figure 6

Table 8

Pin No. Symbol Description

1 VOUT Output voltage pin

2 VSS GND pin

3 SSC

Pin for soft-start control*1

4 ON / OFF ON / OFF pin

5 VSS GND pin

6 VIN Input voltage pin

SNT-6A(H)

Top view

3 4

Figure 7 *1. Connect a capacitor between the SSC and VSS pins. By this

capacitor’s value, the rising speeds of VOUT at power-on and at

turn-on the ON / OFF pin are adjustable.

For details, refer to “■ Selection of Capacitor for Soft-star

(CSS)”.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 11

 Absolute Maximum Ratings

Table 9 (T a = 25°C unless otherwise specified)

Item Symbol Absolute Maximum Rating Unit

VIN V

SS − 0.3 to VSS + 6.0 V

VON / OFF V

SS − 0.3 to VIN + 0.3 V

Input voltage VSSC V

SS − 0.3 to VIN + 0.3 V

Output voltage VOUT V

SS − 0.3 to VIN + 0.3 V

SOT-89-5 1000*1 mW

SOT-23-5 600*1 mW

Power dissipation SNT-6A(H) PD 500*1 mW

Operating ambient temperature Topr −40 to +85 °C

Storage temperature Tstg −40 to +125 °C

*1. When mounted on board

[Mounted board]

(1) Board size : 114.3 mm × 76.2 mm × t1.6 mm

(2) Name : JEDEC STANDARD51-7

Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical

damage. These values must therefore not be exceeded under any conditions.

0 50 100 150

Power Dissipation (PD) [mW]

Ambient Temperature (Ta) [°C]

400

200

600

1000

800

1200

SOT-89-5

SNT-6A(H)

SOT-23-5

Figure 8 Power Dissipation of Package

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

 Electrical Characteristics

Table 10 (1 / 2)

(Ta = 25°C unless otherwise specified)

Item Symbol Conditions Min. Typ. Max. Unit

Test

Circuit

1.2 V

≤

OUT(S)

< 1.5 V V

OUT(S)

−

0.015 V

OUT(S)

0.015 V 1

Output voltage

OUT(E)

= V

OUT(S)

1.0 V,

OUT

= 100 mA 1.5 V

≤

OUT(S)

≤

3.5 V V

OUT(S)

0.99 V

OUT(S)

1.01 V 1

Output current

OUT

≥

OUT(S)

1.0 V 300

⎯

mA 3

1.2 V

≤

OUT(S)

< 1.3 V 0.50 0.58 0.67 V 1

1.3 V

≤

OUT(S)

< 1.4 V

⎯

0.48 0.56 V 1

1.4 V

≤

OUT(S)

< 1.5 V

⎯

0.37 0.50 V 1

1.5 V

≤

OUT(S)

< 1.7 V

⎯

0.31 0.47 V 1

1.7 V

≤

OUT(S)

< 2.0 V

⎯

0.28 0.42 V 1

2.0 V

≤

OUT(S)

< 2.4 V

⎯

0.25 0.38 V 1

2.4 V

≤

OUT(S)

< 2.8 V

⎯

0.23 0.35 V 1

Dropout voltage

drop

OUT

= 300 mA

2.8 V

≤

OUT(S)

≤

3.5 V

⎯

0.21 0.31 V 1

Line regulation

OUTIN

OUT1

VVV

•Δ

OUT(S)

0.5 V

≤

5.5 V, I

OUT

= 100 mA

⎯

0.05 0.2 %/V 1

= V

OUT(S)

1.0 V, 1.0 mA

≤

OUT

≤

100 mA

⎯

15 40 mV 1

Load regulation

OUT2

= V

OUT(S)

1.0 V, 1.0 mA

≤

OUT

≤

300 mA

⎯

45 120 mV 1

Output voltage

temperature coefficient

OUT

VTa

•Δ

= V

OUT(S)

1.0 V, I

OUT

= 30 mA,

−

≤

+85

⎯

130

⎯

ppm/

Current consumption

during operation I

SS1

= V

OUT(S)

1.0 V, ON / OFF pin = ON, no load

⎯

45 65

A 2

Current consumption

during power-off I

SS2

= V

OUT(S)

1.0 V, ON / OFF pin = OFF, no load

⎯

0.1 1.0

A 2

Input voltage V

⎯

1.7

⎯

5.5 V

⎯

ON / OFF pin

input voltage “H” V

= V

OUT(S)

1.0 V, R

= 1.0 k

determined by V

OUT

output level 1.0

⎯

V 4

ON / OFF pin

input voltage “L” V

= V

OUT(S)

1.0 V, R

= 1.0 k

determined by V

OUT

output level

⎯

0.3 V 4

B / D type

−

0.1

⎯

0.1

A 4 ON / OFF pin

input current “H” I

= 5.5 V,

ON / OFF

= 5.5 V A / C type 1.0 2.5 5.0

A 4

ON / OFF pin

input current “L” I

= 5.5 V, V

ON / OFF

= 0 V

−

0.1

⎯

0.1

A 4

Ripple rejection

= V

OUT(S)

1.0 V, f = 1.0 kHz,

rip

= 0.5 Vrms, I

OUT

= 50 mA

⎯

dB 5

Short-circuit current I

short

= V

OUT(S)

1.0 V, ON / OFF pin = ON, V

OUT

= 0 V

⎯

150

⎯

mA 3

Soft start time t

= V

OUT(S)

1.0 V, I

OUT

= 100 mA, C

= 1.0

= 1.0 nF

⎯

0.7

⎯

ms 1

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 13

Table 10 (2 / 2)

S-1137 Series A / B type (With discharge shunt function)

Item Symbol Conditions Min. Typ. Max. Unit

Test

Circuit

“L” output Nch

ON resistance R

LOW

OUT

= 0.1 V, V

= 5.5 V

⎯

S-1137 Series A / C type (pull-down resistor)

Item Symbol Conditions Min. Typ. Max. Unit

Test

Circuit

Power-off

pull-down resistor R

⎯

1.0 2.2 5.0 M

*1. VOUT(S): Specified output voltage

VOUT(E): Actual output voltage

Output voltage when fixing IOUT (= 100 mA) and inputting VOUT(S) +1.0 V

*2. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output current.

*3. Vdrop = VIN1 − (VOUT3 × 0.98)

OUT3 is the output voltage when VIN = VOUT(S) + 1.0 V and IOUT = 300 mA.

VIN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input

voltage.

*4. The change in temperature [m V/°C] is calculated using the following equation.

ΔVOUT

ΔTa []

mV/°C *1 = VOUT(S)[]

V*2 × ΔVOUT

ΔTa•VOUT []

ppm/°C *3 ÷ 1000

*1. Change in temperature of the output voltage

*2. Specified output voltage

*3. Output voltage temperature coef ficient

*5. The output current can be at least this value.

Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the

power dissipation of the package when the output current is large.

This specification is guaranteed by design.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

 Test Circuits

VOUT

VIN

VSS

ON / OFF SSC

Set to power

Figure 9

VOUT

VIN

+ A

ON / OFF VSS

SSC

Set to V

or GND

Figure 10

VOUT

VIN

ON / OFF VSS

SSC

Set to V

or GND

Figure 11

VOUT

VIN

ON / OFF VSS

SSC

A R

Figure 12

VOUT

VIN

ON / OFF VSS

SSC R

Set to power

Figure 13

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 15

 Standard Circuit

IN*1

L*2

GND

VOUT

VIN

VSS

ON / OFF SSC

SS*3

Input

Output

Single GND

*1. C

IN is a capacitor for stabilizing the input.

*2. Ceramic capacitor of 1.0 μF or more can be used as CL.

*3. A ceramic capacitor of 0.22 nF to 22 nF can be used for CSS.

Figure 14

Caution The above connection diagram and constant will not guarantee successful operation. Perform

thorough evaluation using the actual application to set the constant.

 Condition of Application

Input capacitor (CIN) : 1.0 μF or more

Output capacitor (CL) : 1.0 μF or more (Ceramic capacitor)

Capacitor for soft-start (CSS) : 0.22 nF to 22 nF (Ceramic capacitor)

Caution A general series regulator may oscillate, depending on the external components. Confirm that no

oscillation occurs in the application for which the above capacitors are used.

 Selection of Input and Output Capacitors (CIN, CL)

The S-1137 Series requires an output capacitor between the VOUT and VSS pin for phase compensation. Operation is

stabilized by a ceramic capacitor with an output capacitance of 1.0 μF or more over the entire temperature range.

When using an OS capacitor, tantalum capacit or, or aluminum electrolytic capacitor, the capacitance must be 1.0 μF or

more.

The value of the output overshoot or undershoot transient response varies depending on the value of the output

capacitor. The required capacitance of the input capacitor differs depending on the application.

The recommended capacitance for an application is CIN ≥ 1.0 μF, CL ≥ 1.0 μF; however, when selecting the output

capacitor, perform sufficient evaluation, including evaluation of temperature charact eristics, on the actual device.

 Selection of Capacitor for Soft-start (CSS)

The S-1137 Series requires a capacitor for soft-start (CSS) between the SSC and VSS pins. In the all range of

temperature, the S-1137 Series operates stably with a ceramic capacitor of 0.22 nF or more. By the value of this CSS,

the rising speed of the output voltage is adjust able. The time that the output voltage rises t o 99% is 0.7 ms (typ.), CSS =

1 nF. The recommended value for applications is 0.22 nF ≤ CSS ≤ 22 nF, however, define the values by sufficient

evaluation including the temperature c haracteristics under the usage condition.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

 Explanation of Terms

1. Low dropout voltage regulator

This IC’s voltage regulator has the low dropout voltage due to its built-in low on-resistance transistor.

2. Output voltage (VOUT)

The accuracy of the output voltage is ensured at ±1.0% or ±15 mV*1 under the specified conditions of fixed input

voltage*2, fixed output current, and fixed temperature.

*1. When VOUT < 1.5 V : ±15 mV, When 1.5 V ≤ VOUT : ±1.0%

*2. Differs depending on the product.

Caution If the above conditions change, the output voltage value may vary and exceed the accuracy range

of the output voltage. Refer to “ Electrical Characteristics” and “ Characteristics (Typical

Data)” for details.

3. Line regulation ⎝

⎛⎠

⎞

ΔVOUT1

ΔVIN•VOUT

Indicates the dependency of the output voltage on the input voltage. That is, the values show how much the output

voltage changes due to a change in the input voltage with the output current remaining unchanged.

4. Load regulation (ΔVOUT2)

Indicates the dependency of the output volt age on the output current. T hat is, the values show how much the output

voltage changes due to a change in the output current with the input voltage remaining unchanged.

5. Dropout voltage (Vdrop)

Indicates the difference between input voltage VIN and the output voltage when; decreasing input voltage VIN

gradually until the output voltage has dropped out to the value of 98% of output voltage VOUT3, which is at VIN =

VOUT(S) + 1.0 V.

Vdrop = VIN1 − (VOUT3 × 0.98)

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 17

6. Temperature coefficient of output voltage ⎝

⎛⎠

⎞

ΔVOUT

ΔTa•VOUT

The shaded area in Figure 15 is the range where VOUT varies in the operating temperature range when the

temperature coefficient of the output voltage is ±130 ppm/°C.

OUT(E)*1

Example of S-1137B3 0 typ. products

−40 25

+0.39 mV/°C

OUT

[V]

*1. V

OUT(E)

is the value of the output voltage measured at 25°C.

85 Ta [°C]

−0.39 mV/°C

Figure 15

A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.

ΔVOUT

ΔTa []

mV/°C *1 = VOUT(S)[]

V*2 × ΔVOUT

ΔTa•VOUT []

ppm/°C *3 ÷ 1000

*1. Change in temperature of output voltage

*2. Specified output voltage

*3. Output voltage temperature coefficient

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

 Operation

1. Basic operation

Figure 16 shows t he block diagram of S-1137 Series.

The error amplifier compares the reference voltage (Vref) with Vfb, which is the output voltage resistance-divided by

feedback resistors Rs and Rf. It supplies the gate voltage necessary to maintain the constant output voltage which is

not influenced by the input voltage and temperature change, to the output transistor.

*1. Parasitic diode

VSS

Current

supply

−

Vfb

Vref

VIN

VOUT

Error

amplifier

Reference voltage

circuit

Figure 16

2. Output transistor

In the S-1137 Series, a low on-resistance P-channel MOS FET is used as the output transistor.

Be sure that VOUT does not exceed VIN + 0.3 V to prevent the voltage regulator from being damaged due to inverse

current flowing from the VOUT pin through a parasitic diode to the VIN pin.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 19

3. ON / OFF pin

This pin starts and stops t he regulator.

When the ON / OFF pin is set to the power-off level, the entire internal circuit stops operating, and the built-in P-

channel MOS FET output transistor between the VIN and VOUT pins is turned off, reducing current consumption

significantly. The S-1137 has a discharge shunt circuit which discharges the capacitor for soft-start (CSS) so that the

SSC pin is forcibly set to the VSS level.

Since the S-1137 Series A / B types have a built-in discharge shunt circuit to discharge the output capacitance, the

VOUT pin is forcibly set to VSS level. In the S-1137 Series C / D types, the VOUT pin is set t o V SS level through several

hundred kΩ internal divided resistors between the VOUT and VSS pins.

Note that the current consumption increases when a volt age of 0.3 V to 1.0 V (Ta = 25°C) is applied to the ON / OF F

pin. The ON / OFF pin is conf igured as shown in Figures 17 and 18. In the S-1137 Series A / C types, the ON / OFF

pin is internally pulled down to VSS in the float ing status, so the VOUT pin is set to the VSS level. In the S-1137 Series

B / D types, the ON / OFF pin is not internally pulled down, so do not use these types with the ON / OFF pin in the

floating status. When not using the ON / OFF pin in the S-1137 Series B / D types, connect the pin to the VIN pin.

Table 11

Logic Type ON / OFF Pin Internal Circuits VOUT Pin Voltage Current Consumption

A / B / C / D “H”: Power-on Operate Set value ISS1*1

A / B / C / D “L”: Power-off Stop VSS level ISS2

*1. IC’s current consumption increases as much as current flows into the pull-down resistor when the ON / OFF

pin is connected to VIN and the S-1137 Series A / C types is operating (Figure 17).

(1) S-1137 Series A / C Type (2) S-1137 Series B / D Type

VSS

VIN

ON / OFF

VSS

VIN

OFF

Figure 17 Figure 18

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

4. Discharge shunt function (S-1137 Series A / B types)

The S-1137 Series A / B types have a built-in discharge shunt circuit to discharge the output capacitance. When the

ON / OFF pin is set to power-off level, turns the output transistor off, and turns the discharge shunt function on so that

the output capacitor discharges. These types allow for the VOUT pin reach the VSS level faster than the S-1137

Series C / D types that does not have a discharge shunt circuit.

Output transistor : OFF

ON / OFF Pin

: Power-off

VIN

ON / OFF

VSS

Power-off circuit

Discharge shunt function

: ON

VOUT

*1. Parasitic diode

Current flow

GND

S-1137 Series

Output

capacitance

)

Figure 19

5. Overcurrent protection circuit

The S-1137 Series has an overcurrent protection circuit having the characteristics shown in “(1) Output Voltage vs.

Output Current (When Load Current Increases) (Ta = 25°C)” in “ Characteristics (Typical Data)”, in order to

protect the output transistor against an excessive output current and short circuiting between the VOUT and VSS pins.

The current (Ishort) when the output pin is short-circuited is internally set at approx. 150 mA (typ.), and the normal value

is restored for the output voltage, if releasing a short circuit once.

Caution Using the overcurrent protection circuit is to protect the output transistor from accidental conditions

such as short circuited load and the rapid and large current flow in the large capacitor. The

overcurrent protection circuit is not suitable for use under the short circuit status or large current

flow ing (300 mA or more) that lasts long.

6. Pull-down resistor (S-1137 Series A / C types)

In the S-1137 Series A / C types, the ON / OFF pin is internally pulled down to VSS, so the VOUT pin is in the VSS level

when in the floating status.

IC’s current consumption increases as much as current flows into the pull-down resistor of 2.2 MΩ (typ.) when the ON /

OFF pin is connected to VIN and the S-1137 Series A / C types is operating.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 21

7. Soft-start function

The S-1137 Series has a soft-start circuit to suppress the rush current (IRUSH) and overshoot of the output voltage

generated at power-on the application or at turn-on the ON / OFF pin.

After immediately power-on the application or at turn-on the ON / OFF pin, the output voltage slowly rises. The time

that the output voltage rises t o 99% (tSS) is adjustable by a capacitor (CSS) externally connected between the SSC and

VSS pins. When CSS = 1 nF, the time is 0.7 ms (typ.). When the ON / OFF pin is off, the electric charge charged in the

external capacitor (CSS) will be discharged by the discharge shunt transistor.

The soft-start time (tSS) is defined by time consonants of the built-in constant current (approx. 1 μA) and the external

capacitor (CSS):

tSS (ms) = soft-start coefficient × CSS (nF)

The soft-start coefficient (25°C) is as follows.

Min. : 0.4, Typ. : 0.7, Max. : 1.2

Input

voltage

(VIN)

SSC pin

voltage

(VSSC)

Output

voltage

(VOUT)

VOUT

0.99

t [ms]

Soft-start time (tSS)

approx.0.7 V

Figure 20

The rush current can be suppressed greatly by the soft-start function.

As the value of the external capacitor is larger, the rush current decreases more.

Figure 21 shows t he waveform example of the rush current.

Input

voltage

)

Rush

current

RUSH

)

t [ms]

Without soft-start : about 400 mA at the peak

With soft-start : about 20 mA at the peak

Figure 21 Waveform Example of Rush Curren t

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

 Precautions

• Wiring patterns for the VIN, VOUT and GND pins should be designed so that the impedance is low. When mounting

an output capacitor between the VOUT and VSS pins (CL), the capacitor for stabilizing the input between the VIN and

VSS pins (CIN), and the capacitor for soft-start between the SSC and VSS pins, the distance from the capacitors to

these pins should be as short as possible.

• Note that the output voltage may increase when a series regulator is used at low load current (1.0 mA or less).

• Note that the output voltage may increase due to the leakage current from a driver when a series regulator is used at

high temperature.

• Generally a series regulator may cause oscillation, depending on the selection of external parts. The following

conditions are recommended for this IC. However, be sure to perform sufficient evaluation under the actual usage

conditions for selection, including evaluation of temperature characteristics. See “(8) Example of Equivalent Series

Resistance vs. Output Current Characteristics (Ta = 25°C)” in “ Reference Data” for the equivalent series

resistance (RESR) of the output capacitor.

Input capacitor (CIN) : 1.0 μF or more

Output capacitor (CL) : 1.0 μF or more

Capacitor for soft-start (CSS) : 0.22 nF to 22 nF

• T he voltage regulator may oscillate when the impedance of the power supply is high and the input capacitor is small or

an input capacitor is not connected.

• If the output capacitance is small, power supply’s fluctuation and the characteristics of load fluctuation become worse.

Sufficiently evaluate the output voltage’s fluct uation with the actual device.

• Although this IC has a soft-start circuit, small overshoot may be included in the output voltage by the lower-valued

capacitor for soft-start (CSS). Evaluate suff iciently with actual devices.

• The application conditions for the input voltage, out put voltage, and load current should not exceed the package power

dissipation.

• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic

protection circuit.

• In determining the output current, attention should be paid to the output current value specified in Table 10 in “

Electrical Characteristics” and f ootnote *5 of the table.

• SII claims no responsibility for any disputes arising out of or in connection with any infringement by products including

this IC of patents owned by a third party.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 23

 Characteristics (Typical Data)

(1) Output Voltag e vs. Output Current (When Load Current Increases) (Ta = 25°C)

VOUT = 1.2 V VOUT = 2.5 V

0 100 200

OUT

[V]

0.8

0.4

OUT

[mA]

300

1.6

1.0

0.6

0.2

400 500 700

= 1.5 V

1.7 V

2.2 V

3.2 V

5.5 V

600

1.2

1.4

0 100 200

OUT

[V]

1.5

OUT

[mA]

300

3.0

2.0

1.0

0.5

400 500 700

600

2.5 V

= 2.8 V

3.0 V

3.5 V

4.5 V

5.5 V

VOUT = 3.5 V

0 100 200

OUT

[V]

2.0

OUT

[mA]

300

4.0

2.5

1.5

0.5

400 500 700

600

3.0 V

= 3.8 V

4.0 V

4.5 V

5.5 V

1.0

3.5

Remark In determining the output current, attention should

be paid to the following.

1. T he minimum output current value and

footnote *5 in Table 10 in the “ Electrical

Characteristics”

2. The package power dissipation

(2) Output Voltage vs. Input Voltage (Ta = 25°C)

VOUT = 1.2 V VOUT = 2.5 V

0 1.0 3.0 4.0 6.0

OUT

[V]

1.4

0.8

0.6

0.2

[V]

0.4

1.0

2.0 5.0

OUT

= 1 mA

OUT

= 50 mA

OUT

= 30 mA

OUT

= 100 mA

1.2

0 1.0 3.0 4.0 6.0

VOUT [V]

3.0

2.0

1.5

0.5

VIN [V]

1.0

2.5

2.0 5.0

IOUT = 1 mA

IOUT = 50 mA

IOUT = 30 mA

IOUT = 100 mA

VOUT = 3.5 V

0 1.0 3.0 4.0 6.0

VOUT [V]

4.0

2.0

1.5

0.5

VIN [V]

1.0

2.5

2.0 5.0

IOUT = 1 mA

IOUT = 50 mA

IOUT = 30 mA

IOUT = 100 mA

3.5

3.0

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

(3) Dropout Voltage vs. Output Current

VOUT = 1.2 V VOUT = 2.5 V

0 100 200

drop

[V]

0.30

0.25

0.20

0.15

0.10

0.05

OUT

[mA]

15050

0.35

250 300

Ta = 85

°C

Ta =

°C

−40°C

0 100 200

drop

[V]

0.18

0.14

0.12

0.10

0.08

0.06

0.04

0.02

OUT

[mA]

15050

0.16

0.20

250 300

Ta = 85

°C

Ta = 25

°C

−40

°C

VOUT = 3.5 V

0 100 200

drop

[V]

0.14

0.12

0.10

0.08

0.06

0.04

0.02

OUT

[mA]

15050

0.16

0.18

250 300

Ta = 85

°C

Ta = 25

°C

−40

°C

(4) Dropout Voltage vs. Set Output Voltage

1.0 2.0 2.5

drop

[V]

0.35

0.25

0.20

0.15

0.10

0.05

OUT

[V]

1.5 3.0 3.5

30 mA

0.30 I

OUT

= 300 mA

150 mA

100 mA

50 mA 10 mA 1 mA

0.1 mA

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 25

(5) Output Voltage vs. Ambient Temperature

VOUT = 1.2 V VOUT = 2.5 V

−40 0 255075

OUT

[V]

1.30

1.20

1.15

1.10

Ta [°C]

1.25

−25 85

−40 0 25 50 75

OUT

[V]

2.70

2.50

2.40

2.30

Ta [°C]

2.60

−25 85

2.55

2.45

2.35

2.65

VOUT = 3.5 V

−40 0 25 50 75

OUT

[V]

3.8

3.5

3.4

3.2

Ta [°C]

3.7

−25 85

3.6

3.3

(6) Current Consumption vs. Input Voltage

VOUT = 1.2 V VOUT = 2.5 V

SS1

[μA]

[V]

123456

Ta = 85

°C

−40

°C

ISS1 [μA]

VIN [V]

123456

Ta = 85

°C

−40

°C

VOUT = 3.5 V

SS1

[μA]

[V]

123456

Ta = 85

°C

−40

°C

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

(7) Ripple Rejectio n (Ta = 25°C)

VOUT = 1.2 V VIN = 2.2 V, CL = 1.0 μF VOUT = 2.5 V VIN = 3.5 V, CL = 1.0 μF

10 100 1k 10k 100k

Ripple Rejection [dB]

Frequency [Hz] 1M

100

OUT

= 100 mA

OUT

= 1 mA

OUT

= 50 mA

OUT

= 30 mA

10 100 1k 10k 100k

Ripple Rejection [dB]

Frequency [Hz] 1M

100

OUT

= 100 mA

OUT

= 1 mA

OUT

= 50 mA

OUT

= 30 mA

VOUT = 3.5 V VIN = 4.5 V, CL = 1.0 μF

10 100 1k 10k 100k

Ripple Rejection [dB]

Frequency [Hz] 1M

100

OUT

= 100 mA

OUT

= 1 mA

OUT

= 50 mA

OUT

= 30 mA

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 27

 Reference Data

(1) Transient Response Characteristics when Input (Ta = 25°C)

OUT

= 1.2 V

OUT

= 100 mA, tr = tf = 5.0

s, C

= 1.0

F, C

= 1.0 nF

OUT

= 2.5 V

OUT

= 100 mA, tr = tf = 5.0

s, C

= 1.0

F, C

= 1.0 nF

OUT

[V]

1.32

1.30

1.28

1.26

1.24

1.22

1.20

1.18

1.16

t [μs]

[V]

4.0

3.0

2.5

2.0

0.5

1.0

1.5

3.5

−50 200 3000 50 100 150 250 350−100

OUT

[V]

2.74

2.70

2.66

2.62

2.58

2.54

2.50

2.46

2.42

t [μs]

[V]

5.0

4.0

3.5

3.0

1.0

1.5

2.0

2.5

4.5

−50 200 3000 50 100 150 250 350−100

OUT

= 3.5 V

OUT

= 100 mA, tr = tf = 5.0

s, C

= 1.0

F, C

= 1.0 nF

OUT

[V]

3.74

3.70

3.66

3.62

3.58

3.54

3.50

3.46

3.42

t [μs]

[V]

6.0

5.0

4.5

4.0

2.0

2.5

3.0

3.5

5.5

−50 200 3000 50 100 150 250 350−100

OUT

(2) Transient Response Characteristics of Load (T a = 25°C)

OUT

= 1.2 V

= 2.2 V, C

= C

= 1.0

F, C

= 1.0 nF, I

OUT

= 50

↔

100 mA V

OUT

= 2.5 V

= 3.5 V, C

= C

= 1.0

F, C

= 1.0 nF, I

OUT

= 50

↔

100 mA

OUT

[V]

1.40

1.35

1.25

1.20

1.15

1.10

t [μs]

OUT

[mA]

100

150

−150

−50

−50 200 3000 50 100 150 250 350−100

−100

1.30

OUT

[V]

2.70

2.65

2.55

2.50

2.45

2.40

t [μs]

OUT

[mA]

100

150

−150

−50

−50 200 3000 50 100 150 250 350−100

−100

2.60

OUT

= 3.5 V

= 4.5 V, C

= C

= 1.0

F, C

= 1.0 nF, I

OUT

= 50

↔

100 mA

OUT

[V]

3.70

3.65

3.55

3.50

3.45

3.40

t [μs]

OUT

[mA]

100

150

−150

−50

−50 200 3000 50 100 150 250 350−100

−100

3.60

OUT

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

(3) Transient Response Characteristics of ON / OFF Pi n (Ta = 25°C)

OUT

= 1.2 V

= 2.2 V, tr = 1.0

s, C

= C

= 1.0

F, C

= 1.0 nF, I

OUT

= 100 mA

OUT

= 2.5 V

= 3.5 V, tr = 1.0

s, C

= C

= 1.0

F, C

= 1.0 nF, I

OUT

= 100 mA

VOUT [V]

1.2

0.8

0.4

t [ms]

VON / OFF [V]

0 0.5 1.0 1.5

1.6

2.0

2.4

−1

−2

−3

−0.5 2.0

VOUT

VON / OFF

OUT

[V]

t [ms]

ON / OFF

[V]

0 0.5 1.0 1.5

−2

−4

−6

−0.5 2.0

OUT

ON / OFF

OUT

= 3.5 V

= 4.5 V, tr = 1.0

s, C

= C

= 1.0

F, C

= 1.0 nF, I

OUT

= 100 mA

VOUT [V]

t [ms]

VON / OFF [V]

0 0.5 1.0 1.5

−2

−4

−6

−0.5 2.0

VOUT

VON / OFF

(4) Soft-start Time vs. Ambient Temperature Characteristics

(5) Soft-start time vs. Capacitor for Soft-start Characteristics

(Ta = 25°C)

VIN = VOUT + 1.0 V, VON / OFF = 0 V → VOUT + 1.0 V,

CIN = CL = 1.0 μF, CSS = 1.0 nF VIN = VOUT + 1.0 V, VON / OFF = 0 V → VOUT + 1.0 V,

CIN = CL = 1.0 μF

−40 0 25 50 75

tSS [ms]

1.4

0.6

0.4

Ta [°C]

1.2

−25 85

0.8

0.2

1.0

VIN = 1.2 V

2.5 V

3.5 V

0.1 1.0

[ms]

1.0

0.1

[nF]

100.0

10.0

10.0 100.0

= 1.2 V

2.5 V

3.5 V

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 29

(6) Rush Current Characteristi cs (Ta = 25°C)

VOUT = 1.2 V, VIN = 2.2 V, IOUT = 0 mA,

CL = 1.0 μF, CSS = 0.22 nF VOUT = 1.2 V, VIN = 2.2 V, IOUT = 0 mA,

CL = 1.0 μF, CSS = 1.0 nF

RUSH

[mA]

160

200

120

−0.2 0.2 0.6

ON/OFF

, V

OUT

[V]

2.0

1.5

1.0

0.5

t [ms]

0.40

2.5

0.8 1.0

ON/OFF

OUT

RUSH

[mA]

160

200

120

−0.2 0.2 0.6

ON/OFF

, V

OUT

[V]

2.0

1.5

1.0

0.5

t [ms]

0.40

2.5

0.8 1.0

ON/OFF

OUT

RUSH

VOUT = 1.2 V, VIN = 2.2 V, IOUT = 0 mA,

CL = 1.0 μF, CSS = 22.0 nF

RUSH

[mA]

100

−5515

ON/OFF

, V

OUT

[V]

2.0

1.5

1.0

0.5

t [ms]

100

2.5

20 25

ON/OFF

OUT

RUSH

VOUT = 3.5 V, VIN = 4.5 V, IOUT = 0 mA,

CL = 1.0 μF, CSS = 0.22 nF

VOUT = 3.5 V, VIN = 4.5 V, IOUT = 0 mA,

CL = 1.0 μF, CSS = 1.0 nF

RUSH

[mA]

160

200

120

−0.2 0.2 0.6

ON/OFF

, V

OUT

[V]

t [ms]

0.40

0.8 1.0

ON/OFF

OUT

RUSH

[mA]

160

200

120

−0.2 0.2 0.6

ON/OFF

, V

OUT

[V]

t [ms]

0.40

0.8 1.0

ON/OFF

OUT

RUSH

VOUT = 3.5 V, VIN = 4.5 V, IOUT = 0 mA,

CL = 1.0 μF, CSS = 22.0 nF

RUSH

[mA]

100

−5515

ON/OFF

, V

OUT

[V]

t [ms]

100

20 25

ON/OFF

OUT

RUSH

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

(7) Output Capacitance vs. Characteristics of Di scharge Time (Ta = 25°C)

S-1137 Series A / B type (with discharge shunt function)

VIN = VOUT + 1.0 V, IOUT = no load

VON / OFF = VOUT + 1.0 V → VSS, tf = 1 μs

tDSC [ms]

1.5

1.0

0.5

CL [μF]

24 68

2.0

2.5

01012

VOUT(s) = 1.2 V

3.5 V

2.5 V

OUT

ON / OFF

DSC

OUT

10%

= V

OUT

+ 1.0 V

ON / OFF

= V

OUT

+ 1.0 V → V

Figure 22 Measurement Condition of Discharge Time

(8) Example of Equivalent Series Resistance vs. Output Curren t Characteristics (Ta = 25°C)

CL : Murata Manufacturing Co., Ltd. GRM155B31A105K (1. 0 μF)

CSS : Murata Manufacturing Co., Ltd. GRM40B102K (1.0 nF )

100

0.1 300

IOUT [mA]

RESR [Ω]

CIN = CL = 1.0 μF

CSS = 1.0 nF

Stable

CIN

VIN

VSS CSS

S-1137 Series

VOUT

ON / OFF

RESR

SSC

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 31

 Marking Specifications

(1) SOT-89-5

(1) to (3) : Product code (Refer to Product name vs. Product code)

(4) to (6) : Lot number

5 4

1 3 2

SOT-89-5

Top view

(2) (1) (3)

(5) (4) (6)

Product name vs. Product code

(a) S-1137 Series A type (b) S-1137 Series B type

Product code Product code

Product Name (1) (2) (3) Product Name (1) (2) (3)

S-1137A12-U5T1x V H C S-1137B12-U5T1x V I C

S-1137A13-U5T1x V H D S-1137B13-U5T1x V I D

S-1137A14-U5T1x V H E S-1137B14-U5T1x V I E

S-1137A15-U5T1x V H F S-1137B15-U5T1x V I F

S-1137A16-U5T1x V H G S-1137B16-U5T1x V I G

S-1137A17-U5T1x V H H S-1137B17-U5T1x V I H

S-1137A18-U5T1x V H I S-1137B18-U5T1x V I I

S-1137A1J-U5T1x V H J S-1137B1J-U5T1x V I J

S-1137A19-U5T1x V H K S-1137B19-U5T1x V I K

S-1137A20-U5T1x V H L S-1137B20-U5T1x V I L

S-1137A21-U5T1x V H M S-1137B21-U5T1x V I M

S-1137A22-U5T1x V H N S-1137B22-U5T1x V I N

S-1137A23-U5T1x V H O S-1137B23-U5T1x V I O

S-1137A24-U5T1x V H P S-1137B24-U5T1x V I P

S-1137A25-U5T1x V H Q S-1137B25-U5T1x V I Q

S-1137A26-U5T1x V H R S-1137B26-U5T1x V I R

S-1137A27-U5T1x V H S S-1137B27-U5T1x V I S

S-1137A28-U5T1x V H T S-1137B28-U5T1x V I T

S-1137A2J-U5T1x V H U S-1137B2J-U5T1x V I U

S-1137A29-U5T1x V H V S-1137B29-U5T1x V I V

S-1137A30-U5T1x V H W S-1137B30-U5T1x V I W

S-1137A31-U5T1x V H X S-1137B31-U5T1x V I X

S-1137A32-U5T1x V H Y S-1137B32-U5T1x V I Y

S-1137A33-U5T1x V H Z S-1137B33-U5T1x V I Z

S-1137A34-U5T1x V H 2 S-1137B34-U5T1x V I 2

S-1137A35-U5T1x V H 3 S-1137B35-U5T1x V I 3

Remark 1. Please contact our sales office for products with specifications other than the above.

2. x: G or U

3. Please select products of environmental code = U for Sn 100%, halogen-free products.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

Product code Product code

Product Name (1) (2) (3) Product Name (1) (2) (3)

S-1137C12-U5T1x V J C S-1137D12-U5T1x V K C

S-1137C13-U5T1x V J D S-1137D13-U5T1x V K D

S-1137C14-U5T1x V J E S-1137D14-U5T1x V K E

S-1137C15-U5T1x V J F S-1137D15-U5T1x V K F

S-1137C16-U5T1x V J G S-1137D16-U5T1x V K G

S-1137C17-U5T1x V J H S-1137D17-U5T1x V K H

S-1137C18-U5T1x V J I S-1137D18-U5T1x V K I

S-1137C1J-U5T1x V J J S-1137D1J-U5T1x V K J

S-1137C19-U5T1x V J K S-1137D19-U5T1x V K K

S-1137C20-U5T1x V J L S-1137D20-U5T1x V K L

S-1137C21-U5T1x V J M S-1137D21-U5T1x V K M

S-1137C22-U5T1x V J N S-1137D22-U5T1x V K N

S-1137C23-U5T1x V J O S-1137D23-U5T1x V K O

S-1137C24-U5T1x V J P S-1137D24-U5T1x V K P

S-1137C25-U5T1x V J Q S-1137D25-U5T1x V K Q

S-1137C26-U5T1x V J R S-1137D26-U5T1x V K R

S-1137C27-U5T1x V J S S-1137D27-U5T1x V K S

S-1137C28-U5T1x V J T S-1137D28-U5T1x V K T

S-1137C2J-U5T1x V J U S-1137D2J-U5T1x V K U

S-1137C29-U5T1x V J V S-1137D29-U5T1x V K V

S-1137C30-U5T1x V J W S-1137D30-U5T1x V K W

S-1137C31-U5T1x V J X S-1137D31-U5T1x V K X

S-1137C32-U5T1x V J Y S-1137D32-U5T1x V K Y

S-1137C33-U5T1x V J Z S-1137D33-U5T1x V K Z

S-1137C34-U5T1x V J 2 S-1137D34-U5T1x V K 2

S-1137C35-U5T1x V J 3 S-1137D35-U5T1x V K 3

Remark 1. Please contact our sales office for products with specifications other than the above.

2. x: G or U

3. Please select products of environmental code = U for Sn 100%, halogen-free products.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 33

(2) SOT-23-5

(1) to (3) : Product code (Refer to Product name vs. Product code)

(4) : Lot number

5 4

1 3

(1) (2) (3) (4)

SOT-23-5

vie

Product name vs. Product code

(a) S-1137 Series A type (b) S-1137 Series B type

Product code Product code

Product Name (1) (2) (3) Product Name (1) (2) (3)

S-1137A12-M5T1y V H C S-1137B12-M5T1y V I C

S-1137A13-M5T1y V H D S-1137B13-M5T1y V I D

S-1137A14-M5T1y V H E S-1137B14-M5T1y V I E

S-1137A15-M5T1y V H F S-1137B15-M5T1y V I F

S-1137A16-M5T1y V H G S-1137B16-M5T1y V I G

S-1137A17-M5T1y V H H S-1137B17-M5T1y V I H

S-1137A18-M5T1y V H I S-1137B18-M5T1y V I I

S-1137A1J-M5T1y V H J S-1137B1J-M5T1y V I J

S-1137A19-M5T1y V H K S-1137B19-M5T1y V I K

S-1137A20-M5T1y V H L S-1137B20-M5T1y V I L

S-1137A21-M5T1y V H M S-1137B21-M5T1y V I M

S-1137A22-M5T1y V H N S-1137B22-M5T1y V I N

S-1137A23-M5T1y V H O S-1137B23-M5T1y V I O

S-1137A24-M5T1y V H P S-1137B24-M5T1y V I P

S-1137A25-M5T1y V H Q S-1137B25-M5T1y V I Q

S-1137A26-M5T1y V H R S-1137B26-M5T1y V I R

S-1137A27-M5T1y V H S S-1137B27-M5T1y V I S

S-1137A28-M5T1y V H T S-1137B28-M5T1y V I T

S-1137A2J-M5T1y V H U S-1137B2J-M5T1y V I U

S-1137A29-M5T1y V H V S-1137B29-M5T1y V I V

S-1137A30-M5T1y V H W S-1137B30-M5T1y V I W

S-1137A31-M5T1y V H X S-1137B31-M5T1y V I X

S-1137A32-M5T1y V H Y S-1137B32-M5T1y V I Y

S-1137A33-M5T1y V H Z S-1137B33-M5T1y V I Z

S-1137A34-M5T1y V H 2 S-1137B34-M5T1y V I 2

S-1137A35-M5T1y V H 3 S-1137B35-M5T1y V I 3

Remark 1. Please contact our sales office for products with specifications other than the above.

2. y: S or U

3. Please select products of environmental code = U for Sn 100%, halogen-free products.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

Product code Product code

Product Name (1) (2) (3) Product Name (1) (2) (3)

S-1137C12-M5T1y V J C S-1137D12-M5T1y V K C

S-1137C13-M5T1y V J D S-1137D13-M5T1y V K D

S-1137C14-M5T1y V J E S-1137D14-M5T1y V K E

S-1137C15-M5T1y V J F S-1137D15-M5T1y V K F

S-1137C16-M5T1y V J G S-1137D16-M5T1y V K G

S-1137C17-M5T1y V J H S-1137D17-M5T1y V K H

S-1137C18-M5T1y V J I S-1137D18-M5T1y V K I

S-1137C1J-M5T1y V J J S-1137D1J-M5T1y V K J

S-1137C19-M5T1y V J K S-1137D19-M5T1y V K K

S-1137C20-M5T1y V J L S-1137D20-M5T1y V K L

S-1137C21-M5T1y V J M S-1137D21-M5T1y V K M

S-1137C22-M5T1y V J N S-1137D22-M5T1y V K N

S-1137C23-M5T1y V J O S-1137D23-M5T1y V K O

S-1137C24-M5T1y V J P S-1137D24-M5T1y V K P

S-1137C25-M5T1y V J Q S-1137D25-M5T1y V K Q

S-1137C26-M5T1y V J R S-1137D26-M5T1y V K R

S-1137C27-M5T1y V J S S-1137D27-M5T1y V K S

S-1137C28-M5T1y V J T S-1137D28-M5T1y V K T

S-1137C2J-M5T1y V J U S-1137D2J-M5T1y V K U

S-1137C29-M5T1y V J V S-1137D29-M5T1y V K V

S-1137C30-M5T1y V J W S-1137D30-M5T1y V K W

S-1137C31-M5T1y V J X S-1137D31-M5T1y V K X

S-1137C32-M5T1y V J Y S-1137D32-M5T1y V K Y

S-1137C33-M5T1y V J Z S-1137D33-M5T1y V K Z

S-1137C34-M5T1y V J 2 S-1137D34-M5T1y V K 2

S-1137C35-M5T1y V J 3 S-1137D35-M5T1y V K 3

Remark 1. Please contact our sales office for products with specifications other than the above.

2. y: S or U

3. Please select products of environmental code = U for Sn 100%, halogen-free products.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

Rev.2.0_01 S-1137 Series

Seiko Instruments Inc. 35

(3) SNT-6A(H)

(1) to (3) : Product code (Refer to Product name vs. Product code)

(4) to (6) : Lot number

SNT-6A(H)

Top view

3 4

(1)

(4)

(2)

(5)

(3)

(6)

Product name vs. Product code

(a) S-1137 Series A type (b) S-1137 Series B type

Product code Product code

Product Name (1) (2) (3) Product Name (1) (2) (3)

S-1137A12-I6T2x V H C S-1137B12-I6T2x V I C

S-1137A13-I6T2x V H D S-1137B13-I6T2x V I D

S-1137A14-I6T2x V H E S-1137B14-I6T2x V I E

S-1137A15-I6T2x V H F S-1137B15-I6T2x V I F

S-1137A16-I6T2x V H G S-1137B16-I6T2x V I G

S-1137A17-I6T2x V H H S-1137B17-I6T2x V I H

S-1137A18-I6T2x V H I S-1137B18-I6T2x V I I

S-1137A1J-I6T2x V H J S-1137B1J-I6T2x V I J

S-1137A19-I6T2x V H K S-1137B19-I6T2x V I K

S-1137A20-I6T2x V H L S-1137B20-I6T2x V I L

S-1137A21-I6T2x V H M S-1137B21-I6T2x V I M

S-1137A22-I6T2x V H N S-1137B22-I6T2x V I N

S-1137A23-I6T2x V H O S-1137B23-I6T2x V I O

S-1137A24-I6T2x V H P S-1137B24-I6T2x V I P

S-1137A25-I6T2x V H Q S-1137B25-I6T2x V I Q

S-1137A26-I6T2x V H R S-1137B26-I6T2x V I R

S-1137A27-I6T2x V H S S-1137B27-I6T2x V I S

S-1137A28-I6T2x V H T S-1137B28-I6T2x V I T

S-1137A2J-I6T2x V H U S-1137B2J-I6T2x V I U

S-1137A29-I6T2x V H V S-1137B29-I6T2x V I V

S-1137A30-I6T2x V H W S-1137B30-I6T2x V I W

S-1137A31-I6T2x V H X S-1137B31-I6T2x V I X

S-1137A32-I6T2x V H Y S-1137B32-I6T2x V I Y

S-1137A33-I6T2x V H Z S-1137B33-I6T2x V I Z

S-1137A34-I6T2x V H 2 S-1137B34-I6T2x V I 2

S-1137A35-I6T2x V H 3 S-1137B35-I6T2x V I 3

Remark 1. Please contact our sales office for products with specifications other than the above.

2. x: G or U

3. Please select products of environmental code = U for Sn 100%, halogen-free products.

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATO

S-1137 Series Rev.2.0_01

Seiko Instruments Inc.

Product code Product code

Product Name (1) (2) (3) Product Name (1) (2) (3)

S-1137C12-I6T2x V J C S-1137D12-I6T2x V K C

S-1137C13-I6T2x V J D S-1137D13-I6T2x V K D

S-1137C14-I6T2x V J E S-1137D14-I6T2x V K E

S-1137C15-I6T2x V J F S-1137D15-I6T2x V K F

S-1137C16-I6T2x V J G S-1137D16-I6T2x V K G

S-1137C17-I6T2x V J H S-1137D17-I6T2x V K H

S-1137C18-I6T2x V J I S-1137D18-I6T2x V K I

S-1137C1J-I6T2x V J J S-1137D1J-I6T2x V K J

S-1137C19-I6T2x V J K S-1137D19-I6T2x V K K

S-1137C20-I6T2x V J L S-1137D20-I6T2x V K L

S-1137C21-I6T2x V J M S-1137D21-I6T2x V K M

S-1137C22-I6T2x V J N S-1137D22-I6T2x V K N

S-1137C23-I6T2x V J O S-1137D23-I6T2x V K O

S-1137C24-I6T2x V J P S-1137D24-I6T2x V K P

S-1137C25-I6T2x V J Q S-1137D25-I6T2x V K Q

S-1137C26-I6T2x V J R S-1137D26-I6T2x V K R

S-1137C27-I6T2x V J S S-1137D27-I6T2x V K S

S-1137C28-I6T2x V J T S-1137D28-I6T2x V K T

S-1137C2J-I6T2x V J U S-1137D2J-I6T2x V K U

S-1137C29-I6T2x V J V S-1137D29-I6T2x V K V

S-1137C30-I6T2x V J W S-1137D30-I6T2x V K W

S-1137C31-I6T2x V J X S-1137D31-I6T2x V K X

S-1137C32-I6T2x V J Y S-1137D32-I6T2x V K Y

S-1137C33-I6T2x V J Z S-1137D33-I6T2x V K Z

S-1137C34-I6T2x V J 2 S-1137D34-I6T2x V K 2

S-1137C35-I6T2x V J 3 S-1137D35-I6T2x V K 3

Remark 1. Please contact our sales office for products with specifications other than the above.

2. x: G or U

3. Please select products of environmental code = U for Sn 100%, halogen-free products.

No.

TITLE

SCALE

UNIT mm

Seiko Instruments Inc.

1.5±0.1 1.5±0.1

1.6±0.2

4.5±0.1

132

1.5±0.1

0.4±0.05

0.4±0.1

0.45±0.1

0.4±0.1

45°

0.3

No. UP005-A-P-SD-1.1

UP005-A-P-SD-1.1

SOT895-A-PKG Dimensions

No.

TITLE

SCALE

UNIT mm

Seiko Instruments Inc.

2.0±0.1

0.3±0.05

8.0±0.1

ø1.5+0.1

-0

2.0±0.05

ø1.5+0.1

-0

4.75±0.1

5° max.

No. UP005-A-C-SD-1.1

UP005-A-C-SD-1.1

SOT895-A-Carrier Tape

Feed direction

4.0±0.1(10 pitches : 40.0±0.2)

No.

TITLE

SCALE

UNIT mm

Seiko Instruments Inc.

16.5max.

13.0±0.3

QTY. 1,000

(60°)

No. UP005-A-R-SD-1.1

UP005-A-R-SD-1.1

SOT895-A-Reel

Enlarged drawing in the central part

No.

TITLE

SCALE

UNIT mm

Seiko Instruments Inc.

2.9±0.2

1.9±0.2

0.95±0.1

0.4±0.1

0.16 +0.1

-0.06

123

No. MP005-A-P-SD-1.2

MP005-A-P-SD-1.2

SOT235-A-PKG Dimensions

No.

TITLE

SCALE

UNIT mm

Seiko Instruments Inc.

ø1.5 +0.1

-0 2.0±0.05

ø1.0 +0.2

-0 4.0±0.1

1.4±0.2

0.25±0.1

3.2±0.2

123

No. MP005-A-C-SD-2.1

MP005-A-C-SD-2.1

SOT235-A-Carrier Tape

Feed direction

4.0±0.1(10 pitches:40.0±0.2)

No.

TITLE

SCALE

UNIT mm

Seiko Instruments Inc.

12.5max.

9.0±0.3

ø13±0.2

(60°) (60°)

QTY. 3,000

No. MP005-A-R-SD-1.1

MP005-A-R-SD-1.1

SOT235-A-Reel

Enlarged drawing in the central part

No.

TITLE

SCALE

UNIT mm

Seiko Instruments Inc.

SNT-6A(H)-A-PKG Dimensions

PI006-A-P-SD-2.0

0.2±0.05

0.48±0.02

0.08 +0.05

-0.02

0.5

1.57±0.03

No. PI006-A-P-SD-2.0

Feed direction

4.0±0.1

2.0±0.05

4.0±0.1

ø1.5 +0.1

-0

ø0.5

1.85±0.05 0.65±0.05

0.25±0.05

5°

No.

TITLE

SCALE

UNIT mm

Seiko Instruments Inc.

PI006-A-C-SD-1.0

SNT-6A(H)-A-Carrier Tape

No. PI006-A-C-SD-1.0

+0.1

-0

12.5max.

9.0±0.3

ø13±0.2

(60°) (60°)

QTY.

No. PI006-A-R-SD-1.0

PI006-A-R-SD-1.0

Enlarged drawing in the central part

No.

TITLE

SCALE

UNIT mm

Seiko Instruments Inc.

SNT-6A(H)-A-Reel

5,000

No.

TITLE

SCALE

UNIT mm

SNT-6A(H)-A-Land Recommendation

Seiko Instruments Inc.

PI006-A-L-SD-3.0

No. PI006-A-L-SD-3.0

0.3

0.20.3

0.52

1.36

0.52

Caution Making the wire pattern under the package is possible. However, note that the package

may be upraised due to the thickness made by the silk screen printing and of a solder

resist on the pattern because this package does not have the standoff.

www.sii-ic.com

• The information described herein is subject to change without notice.

• Seiko Instruments Inc. is not responsible for any problems caused by circuits or diagrams described herein

whose related industrial properties, patents, or other rights belong to third parties. The application circuit

examples explain typical applications of the products, and do not guarantee the success of any specific

mass-production design.

• When the products described herein are regulated products subject to the Wassenaar Arrangement or other

agreements, they may not be exported without authorization from the approp riate governmental authority.

• Use of the information described herein for other purposes and/or reproduction or copying without the

express permissi on of Seiko Instruments Inc. is strictly prohibited.

• The products described herein cannot be used as part of any device or equipment affecting the human

body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus

installed in airplanes and other vehicle s, without prior written permission of Seiko Instruments Inc.

• Although Seiko Instruments Inc. exerts the greatest possible effort to ensure high quality and reliability, the

failure or malfunction of semiconductor products may occur. The user of these products should therefore

give thorough consideration to safety design, including redundancy, fire-prevention measures, and

malfunction prevention, to prevent any accidents, fires, or comm unity damage that may ensue.