AP7115-28WG-7 - DIODES Incorporated

AP7115

150mA LOW DROPOUT LINEAR REGULATOR WITH

SHUTDOWN

AP7115 Rev. 10 1 of 11 MAY 2009

www.diodes.com © Diodes Incorporated

• Wide input voltage range from 2.5V to 5.5V

• 200mV low dropout voltage at 150mA output current

• Guaranteed 150mA output current.

• Low quiescent current 50µA

• Output voltage from 1.0V to 3.5V

• ±2% output voltage accuracy

• Low temperature drift at out put voltag e

• High PSRR

• Fast transient response

• Current limit protection

• Short circuit protection

• Thermal shutdown protection

• SOT25 and SOT353: Available in “Green” Molding

Compound ( No Br, Sb)

• Lead Free Finish/RoHS Compliant (Note 1)

The AP7115 is a 150mA, fixed output voltage, low dropout linear

regulator. The device includes pass element, error amplifier,

band gap reference, current-limit and thermal shutdown circuit.

The characteristics of low dropout voltage and low quiescent

current make it suitable for use in battery powered devices. The

typical quiescent current is approximately 50µA. Several fixed

output voltages are available from 1.0V to 3.5V. Additional

protection is provided with built-in current-limit and

thermal-shutdown functions.

Applications

• Wireless Communication

• GSM/GPRS Cellular Phones

• Handheld Mobile Devic es

• Battery Powered Devices

• CD-ROM, DVD, and LAN Cards

• PC and Notebook Peripherals

Typical Application Circuit

IN OUT

GND

AP7115

BP

EN

VIN CIN

CBP

COUT

VOUT

ON

OFF

1µF

0.1µF

1µF

Features General Description

AP7115

150mA LOW DROPOUT LINEAR REGULATOR WITH

SHUTDOWN

AP7115 Rev. 10 2 of 11 MAY 2009

www.diodes.com © Diodes Incorporated

Ordering Information

AP7115 - XX XX G - 7

W : SOT25

Output voltage Package

7 : Tape & Reel

Packing

Green

G : Green

10 : 1.0V

12 : 1.2V

15 : 1.5V

18 : 1.8V

25 : 2.5V

28 : 2.8V

29 : 2.85V

33 : 3.3V

30 : 3.0V

35 : 3.5V

SE : SOT353

Device Package

Code Packaging

(Note 2) 7” Tape and Reel

Quantity Part Number Suffix

AP7115-XXWG-7 W SOT25 3000/Tape & Reel -7

AP7115-XXSEG-7 SE SOT353 3000/Tape & Reel -7

Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

http://www.diodes.com/products/lead_free.html.

2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at

http://www.diodes.com/datasheets/ap02001.pdf.

Pin Assignments

SOT25 / SOT353

IN

EN BP

OUT

( Top View )

5

43

2

1

GND

Pin Descriptions

Pin Name Pin NO. Description

IN 1 Voltage Input

GND 2 Ground

EN 3 Chip Enable Control

BP 4 Band-Gap Bypass

OUT 5 Voltage Output

AP7115

150mA LOW DROPOUT LINEAR REGULATOR WITH

SHUTDOWN

AP7115 Rev. 10 3 of 11 MAY 2009

www.diodes.com © Diodes Incorporated

Block Diagram

Current

Limit

Thermal

Shutdown

-

+

IN OUT

GND

0.8V

Error

Amp

Bandgap

Enable

BP

EN

Absolute Maximum Ratings

Symbol Parameter Rating Unit

ESD HBM Human Body Model ESD Protection 3.5 KV

ESD MM Machine Model ESD Protection 400 V

VIN Input Voltage -0.3~5.5 V

VCE CE Pin Voltage -0.3~5.5 V

VOUT Output Voltage -0.3~Vin+0.3 V

VBP Band Gap Bypass Pin Voltage -0.3~5.5 V

PD Power Dissipation 500 mW

TJ Operating Junction Temperature Range -40 to +125 oC

TST Storage Temperature Range -65 to +150 oC

Recommended Operating Conditions

Symbol Parameter Min Max Unit

VIN Input Voltage 2.5 5.5 V

IOUT Output Current - 150 mA

TA Operating Ambient Temperature -40 85 oC

AP7115

150mA LOW DROPOUT LINEAR REGULATOR WITH

SHUTDOWN

AP7115 Rev. 10 4 of 11 MAY 2009

www.diodes.com © Diodes Incorporated

Electrical Characteristics (VCC = 3.3V, IL = 30mA, CIN = 1μF, COUT = 1μF, TA = 25oC)

Symbol Parameter Conditions Min Typ. Max Unit

System Supply Input

VIN Operating input voltage IL= 0 ~ 150mA 2.5 5.5 V

ΔVOUT/VOUT Out pu t Voltag e Accuracy VIN = VOUT + 1V where

1mA ≤ IOUT ≤ 50mA -2 2 %

VDO Dropout Voltage IL= 150mA 200 300 mV

IOUT Output Current VIN - VOUT = 1V 150 mA

IQ Quiescent Current VIN = VOUT + 1V where

IOUT = 0 and VCE = VIN 50 80

µA

Ishutdown Shutdown Current VIN = VOUT + 1V where

IOUT = 0 and VCE = 0 0.1 1 µA

PSRR Power Supply Rejection Ratio IOUT = 30mA, f = 1kHz 70 dB

Ilimit Current Limit 200 250 mA

Thermal Management

Tshutdown Thermal Shutdown 150 oC

Reference Voltage

ΔVREF/ΔT Tempco of Bandgap Reference 30 50 ppm/oC

ΔVOUT/ΔT Tempco of Output Vo lt a ge IOUT = 30mA, -40℃ ≤ T ≤ 85℃ 50 100

ppm/oC

Control and Protection

VIH,CE 2.0 V

VIL,CE 0.7 V

ICE CE Pin Leakage Current VCE = VIN @VIN = 5.0V and VSS = 0V 0.01 0.1 µA

VCE = VSS @VIN = 5.0V and VSS = 0V 0.01 0.1 µA

Regulation

ΔVO/ΔVIN Line Regulation VOUT + 0.5V ≤ VIN ≤ 5.5V where

VOUT >2.0V, IOUT = 30mA 0.02 0.1 %/V

ΔVLOAD Load Regulation 1mA ≤ IL ≤ 150mA w he re

VIN = VOUT + 1V 0.003 0.006 %/mA

Noise

en Output Noise BW = 10Hz ~ 100kHz 50 µVrms

Thermal Resistance

θJA Thermal Resistance

Junction-to-Ambient SOT25 (Note 3) - 200 - oC/W

SOT353 (Note 3) 337

oC/W

θJC Thermal Resistance

Junction-to-Case SOT25 (Note 3) - 52 - oC/W

SOT353 (Note 3) 121

oC/W

Notes: 3. Test condition for SOT25 and SOT353: Device mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout.

AP7115

150mA LOW DROPOUT LINEAR REGULATOR WITH

SHUTDOWN

AP7115 Rev. 10 5 of 11 MAY 2009

www.diodes.com © Diodes Incorporated

Typical Operating Characteristics

Qu iescen t cu r rent vs. Vc c

( V

IN

=2.5~5.5V, I

OUT

=0mA )

20

30

40

50

60

70

80

2.5V 3.0V 3.5V 4.0V 4.5V 5.0V 5.5V

Vcc

Q ui escen t cu rrent ( u A)

`

Q ui escent cu rrent vs. T emperature

( V

IN

=5V, I

OUT

=0mA )

20

30

40

50

60

70

80

-40℃ -20℃ 0℃ 25℃ 50℃ 85℃

Temperature

Quiescent current (uA)

Curre nt l im i t vs. Tempera ture

( V IN=2.5V, VOUT=1.0V )

150

170

190

210

230

250

270

-40℃ -20℃ 0℃ 25℃ 50℃ 85℃

Temperature

Current limit (mA)

Current limit vs. Temperature

( V

IN

=5V, V

OUT

=1.0V )

150

170

190

210

230

250

270

290

310

330

-40℃ -20℃ 0℃ 25℃ 50℃ 85℃

Temperature

Current limit (mA)

Iout v s. Dropout voltage

( T

A

=25℃ )

0

50

100

150

200

250

0mA 20mA 40mA 60mA 80mA 100mA 120mA 150mA

Iout

Dropout voltage (mV)

Current limit vs. Input voltage

( T

A

=25℃ )

120

170

220

270

320

370

2.5V 3.0V 3.5V 4.0V 4.5V 5.0V 5.5V

Input voltage

Cu rrent limit (mA)

AP7115

150mA LOW DROPOUT LINEAR REGULATOR WITH

SHUTDOWN

AP7115 Rev. 10 6 of 11 MAY 2009

www.diodes.com © Diodes Incorporated

Typical Operating Characteristics (Continued)

Short curre nt vs. Te mperature

( V IN=2.5V)

50

53

56

59

62

65

68

-40℃ -20℃ 0℃ 25℃ 50℃ 85℃

Temperature

Sh o rt curren t (mA)

Short current vs. Temperature

( V

IN

=5V )

50

53

56

59

62

65

68

71

74

-40℃ -20℃ 0℃ 25℃ 50℃ 85℃

Temperature

Short c urrent (mA)

Output Noise Output Noise

Output Noise

AP7115

150mA LOW DROPOUT LINEAR REGULATOR WITH

SHUTDOWN

AP7115 Rev. 10 7 of 11 MAY 2009

www.diodes.com © Diodes Incorporated

Typical Operating Characteristics (Continued)

Load Transient Response Load Transient Response

Star t U p (E N vs. VOUT) Start Up (EN vs. VOUT)

AP7115

150mA LOW DROPOUT LINEAR REGULATOR WITH

SHUTDOWN

AP7115 Rev. 10 8 of 11 MAY 2009

www.diodes.com © Diodes Incorporated

Application Note

 Input Capacitor

An 1uF input capacitor is required between the AP7115 input pin

and GND.

There are no requirements for the ESR on input capacitor, but

tolerance and temperature coefficie nt must be conside red.

 Output Capacitor

The AP7115 can work with very small ceramic output capacitors

(1uF or greater). Higher capacitance values help to improve

transient. The output capacitor’s ESR is critical because it from a

zero to provide phase lead which is required for loop stability.

Figure below is Cout ESR vs. Load Current.

 Band-Gap Bypass Capacitor

0.1uF bypass capacitor Between BP pin and GND can reduces

output voltage no ise.

 Shutdown Input Operation

The AP7115 is shutdown by pulling the EN pin low, and turned on

by driving the input high. If the shutdown feature is not required,

the EN pin should be tied to VIN to keep the regulator on at all

times.

 Dropout Voltage

VDROPOUT＝VIN－VOUT＝RDS(ON)×IOUT

 Current Limit

The AP7115 monitors and controls the PMOS’ gate voltage,

limiting the output current to 250mA(typ.). The output can be

shorted to ground for an indefinite period of time without

damaging the part.

 PCB Layout

Optimum performance can only be achieved when the device is

mounted on a PC board according to the diagram below:

 Thermal Considerations

Thermal Shutd own Prot ection limits po we r dissipation in A P7115 .

When the operation junction temperature exceeds 155°C, the

Over Temperature Protection circuit starts the thermal shutdown

function and turns the pass element off. The pass element turn

on again after the junction temperature cools by 30°C. For

continuous operation, do not exceed absolute maximum

operation junction temperature 125°C. The power dissipation

definition in device is:

PD = (VIN − VOUT) x IOUT + VIN x I Q

The maximum power dissipation depends on the thermal

resistance of IC package, PCB layout, the rate of surroundings

airflow and temperature difference between junction to ambient.

The maximum power dissipation can be calculated by the

following formula:

PD(MAX) = ( TJ(MAX) - TA ) / θJA

Where TJ(MAX) is the maximum operation junction temperature

125°C, TA is the ambient temperature and the θJA is the junction

to ambient thermal resistance.

AP7115 Region of Stable Cout ESR vs.

Load Current

0.01

0.1

1

10

100

0 20 40 60 80 100 120 140 160

Load Current (mA)

Cout ESR (Ω)

Stable

AP7115

150mA LOW DROPOUT LINEAR REGULATOR WITH

SHUTDOWN

AP7115 Rev. 10 9 of 11 MAY 2009

1 2 3

5

7

4

XX YW X

XX : Identification code

W : Week : A~Z : 1~26 week;

X : A~Z : Green

( Top View )

Y : Year 0~9

a~z : 27~52 week; z represents

52 and 53 week

Part Numbe

r

Identification Code Part Numbe

r

Identification Code

SOT25 SOT353

AP7115-10W FO AP7115-10SE GO

AP7115-12W FP AP7115-12SE GP

AP7115-15W FQ AP7115-15SE GQ

AP7115-18W FR AP7115-18SE GR

AP7115-25W FS AP7115-25SE GS

AP7115-28W FT AP7115-28SE GT

AP7115-29W FU AP7115-29SE GU

AP7115-30W FV AP7115-30SE GV

AP7115-33W FW AP7115-33SE GW

AP7115-35W FX AP7115-35SE GX

Marking Information

AP7115

150mA LOW DROPOUT LINEAR REGULATOR WITH

SHUTDOWN

AP7115 Rev. 10 10 of 11 MAY 2009

Package Information (All Dimensions in mm)

(1) Package Type: SOT25

(2) Package Type: SOT353

C

L

C

L

0.10/0.30

1.15/1.35

2.0/2.2

0.65Bsc.

1.8/2.2

0/0.1 0.9/1.0

1.10Max.

0.1/0.22

"A"

DETAIL"A"

Gauge Pl ane

0.25/0.40

AP7115

150mA LOW DROPOUT LINEAR REGULATOR WITH

SHUTDOWN

AP7115 Rev. 10 11 of 11 MAY 2009

IMPORTANT NOTICE

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DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

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changes without f urth er notice to this docum ent and any product des c ribed herein . Diodes Incorpora ted does not assume any liability

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license under its patent or tra demark ri ghts, nor the righ ts of other s. Any Customer or use r of this document or p roducts described

herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies

whose products are represented on Diodes Incorporated website, harmless against all damages.

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the express written approval of t he Chief Execut ive Officer of Diodes Inc o rpo rated. As used herein:

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