R1517x Series
500 mA 36V Input Low Supply Current LDO
NO. EA304170112
1
OUTLINE
R1517x is a CMOS-ba sed LDO that specifically designed featuring 500 mA output current and 36 V input voltage.
In addition to a conventional regulator circuit, R1517x consists of a constant slope circuit as a soft-start function,
a fold-back protection circuit, a short current limit circuit, and a thermal shutdown circuit. Besides the low supply
current by CMOS, the operating temperature is 40°C to 105°C and the maximum input voltage is 36 V, the
R1517x is very suitable for power source of car accessories. R1517x supports the internal fixed output voltage
type of R1517xxxxB/D/E/F and the adjustable output voltage setting type, which is controlled by external
resistances, of R1517x001C. As for the soft-start time, R1517x is fixed internal in R1517xxxxB/C/D and is set to
120 µs (Typ). And the soft-start time in R1517xxxxE/F is adjustable by external capacitors. R1517x supports the
auto-discharge function at standby in R1517xxxxD/F. R1517x is available in two packages for ultra-high wattage:
HSOP-6J and TO-252-5-P2.
FEATURES
Input Voltage Range (Maximum Rating) ················ 3.5 V to 36.0 V (50.0V)
Operating Temperature Range ···························· 40°C to 105°C
Supply Current ················································· Typ. 18 µA
Standby Current ··············································· T yp. 0.1 µA
Dropout Voltage ··············································· T yp. 0.35 V (IOUT = 500 mA, VOUT = 5.0 V)
Output Voltage Accuracy ···································· ±0.8% (VOUT 5.0 V)
Line Regulation ················································ T yp. 0.01%/V
Packages ······················································· HSOP-6J, T O -252-5-P2
Output Voltage Range ······································· R1517xxxxB/D/E/F: 2.5 V/3.3 V/3.4 V/5.0 V/ 8.5V
* Contact Ricoh sales represe ntatives for other voltages.
R1517x001C: Adjustable from 2.5 V to 12.0 V with External
Resist ors.
Feedback Voltage: 2.5 V
Built-in Short Current Limit Circuit ························ Typ. 75 mA
Built-in Fold-Back Protection Circuit ······················ Min. 500 mA
Built-in Thermal Shutdown Circuit ························ Typ. 160°C
Built-in Soft-start Circuit ····································· Typ.120 µs
R1517xxxxE/F: Adjustable Time Setting with External
Capacitors.
Usable Ceramic Capacitors ································ R1517xxxxB/D/E/F: 0.1 µF or more
R1517x001C: 1.0 µF or mo re

R1517x
NO. EA304170112
2
APPLICATIONS
Power source for home appliances such as refrigerators, rice cookers, electric water warmers.
Power source for notebook PCs, digital TVs, telephones, private LAN system s.
Power source for office equipment such as copiers, printers, facsimiles, scanners, and projectors
BLOCK DIAGRAMS
R1517xxxxB
V
DD
V
OUT
CE GND
Vref
Internal VR
Soft
Start
Current Limit
Thermal Shutdown
R1517x001C
V
DD
V
OUT
CE GND
Vref
Internal VR V
FB
Soft
Start
Current Limit
Thermal Shutdown
R1517xxxxD
V
DD
V
OUT
CE
GND
Vref
Internal VR
Soft
Start
Current Limit
Thermal Shutdown
R1517xxxxE
V
DD
V
OUT
CE GND
Vref
Internal VR
DELAY
Soft
Start
Current Limit
Thermal Shutdown
R1517xxxxF
V
DD
V
OUT
CE GND
Vref
Internal VR
DELAY
Soft
Start
Current Limit
Thermal Shutdown
R1517x
NO. EA304170112
3
SELECTION GUIDE
The output voltage, version, and packag e type for this device can be selected at the user’s request.
Product Name Package Quantity per Reel Pb Free Halogen Free
R1517Sxx1-E2-FE HSOP-6J 1,000 pcs Yes Yes
R1517Jxx1-T1-FE TO-252-5-P2 3,000 pcs Yes Yes
xx: Specify the set output voltage (VSET)
2.5 V (25) / 3.3 V (33) / 3.4 V (34) / 5.0 V (50) / 8.5 V (85)
Note: Contact Ricoh sales representatives for other voltages.
Adjustable output voltage setting type is fixed to (00)
Note: R1517x001C-T1-#E only support
 Specify the version with desired functions
B: No auto-discharge function
C: No auto-discharge function / Adjustable output voltage setting
D: Auto-discharge function
E: No auto-discharge function / Adjustable soft-start time setting
F: Auto-discharge function / Adjustable soft-start time setting
Auto-Discharge function quickly lowers the output voltage to 0 V by releasing the electrical charge in the external
capacitor when the chip enable signal is switched from the active mode to the standby mode.
R1517x
NO. EA304170112
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PIN DESCRIPTION
1 3
6 4
2
5
1234 5
*
1
HSOP-6J TO-252-5-P2
HSOP-6J
Pin No. Symbol Description
1 VDD Input Pin
2 GND Ground Pin
3
NC No Connection R1517SxxxB/D
VFB Feedback Pin R1517S001C
DELAY Soft-start Time Pin R1517SxxxE/F
4 CE Chip Enable Pin, Active-high
5 GND Ground Pin
6 VOUT Output Pin
TO-252-5-P2
Pin No. Symbol Description
1 VDD Input Pin
2
NC No Connection R1517JxxxB/D
VFB Feedback Pin R1517J001C
DELAY Adjustable Soft-start Time Pin R1517JxxxE/F
3 GND Ground Pin
4 CE Chip Enable Pin, Active-high
5 VOUT Output Pin
*1 The tab on the bottom of the package enhances thermal performance and is electrically connected to GND (substrate
level). It is recommended that the tab be connected to the g r ound plane on the board, or otherwise be left open.
R1517x
NO. EA304170112
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PIN EQUIVALENT CIRCUIT DIAGRAMS
V
OUT
Driver
CE
VOUT Pin
CE Pin
DELAY
Internal VR
VFB
DELAY Pin (R1517xxxxE/F) VFB Pin (R1517x001C)
R1517x
NO. EA304170112
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ABSOLUTE MAXMUM RATINGS
Symbol Item Rating Unit
VIN Input Voltage 0.3 to 50 V
VIN Peak Input Voltage*1 60 V
VCE Input Voltage (CE Pin) 0.3 to 50 V
VFB Input Voltage (VFB Pin) 0.3 to 50 V
VOUT Output Voltage 0.3 to VIN + 0.3 50 V
PD
Power Dissipation
(HSOP-6J)*2 Standard Land Pattern 1700
mW
Ultra High Wattage Land Pattern 2700
Power Dissipation
(TO-252-5-P2)*2 Standard Land Pattern 1900
Ultra High Wattage Land Pattern 3800
Ta Operating Temperature Range 40 to 105 °C
Tstg Storage Temperature Range 55 to 125 °C
*1 Duration time = 200 ms
*2 Refer to PACKAGE INFORMATION for detailed information.
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the
permanent damages and may degrade the life time and safety for both device and system using the
device in the field. The functional operation at or over these absolute maximum ratings is not assured.
R1517x
NO. EA304170112
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ELECTRICAL CHARACTERISTICS
VIN = VSET + 1.0 V, IOUT = 1 mA, CIN = COUT = 0.1 µF, unless otherwise noted.
The specifications surrounded by are guaranteed by design engineerin g at -40°C Ta 105°C.
R1517xxxxB/D (Ta = 25°C)
Symbol Item Conditions Min. Typ. Max. Unit
VIN Input Voltage 3.5 36 V
VOUT Output Voltage
Ta = 25°C VSET 5.0 V 0.992 1.008 V
VSET > 5.0 V 0.99 1.01 V
40°C Ta 105°C VSET 5.0 V 0.982 1.018 V
VSET > 5.0 V 0.98 1.02 V
VOUT
/IOUT Load Regulation
VIN = VSET + 2.0 V,
1mA IOUT 250 mA 15 3 25 mV
VIN = VSET + 2.0 V,
1mA IOUT 500 mA 25 5 40 mV
VDIF Dropout Voltage IOUT = 500 mA Refer to Product-specific
Electrical Characteristics.
ISS Supply Current IOUT = 0 mA 18 36 µA
Istandby Standby Current VCE = 0 V 0.1 2.0 µA
VOUT
/VIN Line Regulation VSET + 0.5 V VIN 36 V,
if VIN 3.5 V 0.01
0.02 %/V
VOUT
/Ta Output Voltage
Temperature Coefficient 40°C Ta 105°C ±60 ppm
/°C
ILIM Output Current Limit VIN = VSET +2.0 V 500 mA
ISC Short Current Limit VOUT = 0 V 75 mA
IPD CE Pull-down Current VCE = 5 V 0.2 0.6 µA
VCE = 36 V 0.5 1.3 µA
tD1 Soft-start Time 1 120 µs
VCEH CE Input Voltage "H" 2.2 V
VCEL CE Input Voltage "L" 1.0 V
TTSD Therm al Shutdown
Temperature Junction Temperature 160 °C
TTSR Therm al Shutdown
Released Temperature Junction Temperature 135 °C
RLOW Low Output Nch Tr. ON
Resistance (R1517xxxxD) VIN = 14.0 V, VCE = 0 V 3.2 k
All test items listed under Electrical Characteristics are done under the pulse load condition (Tj Ta = 25°C) except for
Output Voltage Temperature Coefficient and Soft-start Time 1.
R1517x
NO. EA304170112
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VIN = VSET + 1.0 V, IOUT = 1 mA, CIN = 0.1 µF, COUT = 1.0 µF, unless otherwise noted.
The specifications surrounded by are guaranteed by design engineerin g at -40°C Ta 105°C.
R1517x001C (Ta = 25C)
Symbol Item Conditions Min. Typ. Max. Unit
VIN Input Voltage 3.5 36 V
VFB Feedback Voltage Ta = 25°C 2.480 2.520 V
40°C Ta 105°C 2.455 2.545 V
VOUT
/IOUT Load Regulation
VIN = VSET +2.0 V
1mA IOUT 250 mA 10 3 10 mV
VIN = VSET +2.0 V
1 mA IOUT 500 mA 20 5 20 mV
VDIF Dropout Voltage VSET = VFB, IOUT = 500 mA 1.0 V
ISS Supply Current IOUT = 0 mA 18 36 µA
Istandby Standby Current VCE = 0 V 0.1 2.0 µA
VOUT
/VIN Line Regulation VSET = VFB, 3.5 V VIN 36 V 0.01 0.02 %/V
VOUT
/Ta Output Voltage
Temperature Coefficient 40°C Ta 105°C ±60 ppm
/°C
ILIM Output Current Limit VIN = VSET +2.0 V 500 mA
ISC Short Current Limit VOUT = VFB = 0 V 75 mA
IPD CE Pull-down Current VCE = 5 V 0.2 0.6 µA
VCE = 36 V 0.5 1.3 µA
tD1 Soft-start Time 1 120 µs
VCEH CE Input Voltage "H" 2.2 V
VCEL CE Input Voltage "L"
1.0 V
TTSD Therm al Shutdown
Temperature Junction Temperature 160 °C
TTSR Therm al Shutdown
Released Temperature Junction Temperature 135 °C
All test items listed under Electrical Characteristics are done under the pulse load condition (Tj Ta = 25°C) except for
Output Voltage Temperature Coefficient Soft-start Time 1.
R1517x
NO. EA304170112
9
VIN = VSET + 1.0 V, IOUT = 1 mA, CIN = COUT = 0.1 µF, unless otherwise noted.
The specifications surrounded by are guaranteed by design engineerin g at -40°C Ta 105°C.
R1517xxxxE/F (Ta = 25C)
Symbol Item Conditions Min. Typ. Max. Unit
VIN Input Voltage 3.5 36 V
VOUT Output Voltage
Ta = 25°C VSET 5.0 V 0.992 1.008 V
VSET > 5.0 V 0.99 1.01 V
40°C Ta 125°C VSET 5.0 V 0.982 1.018 V
VSET > 5.0 V 0.98 1.02 V
VOUT
/IOUT Load Regulation
VIN = VSET +2.0 V
1 mA IOUT 250 mA 15 3 25 mV
VIN = VSET +2.0 V
1 mA IOUT 500 mA 25 5 40 mV
VDIF Dropout Voltage IOUT = 500 mA Refer to Product-specific
Electrical Characteristics.
ISS Supply Current IOUT = 0 mA 18 36 µA
Istandby Standby Current VCE = 0 V 0.1 2.0 µA
VOUT
/VIN Line Regulation VSET +0.5 V VIN 36 V,
if VIN 3.5 V 0.01
0.02 %/V
VOUT
/Ta Output Voltage
Temperature Coefficient 40°C Ta 105°C ±60 ppm
/°C
ILIM Output Current Limit VIN = VSET +2.0 V 500 mA
ISC Short Current Limit VOUT = 0 V 75 mA
IPD CE Pull-down Current VCE = 5 V 0.2 0.6 µA
VCE = 36 V 0.5 1.3 µA
IDELAY DELAY Current DELAY = GND 1.5 2.5 3.5 µA
tD1 Soft-start Time 1 DELAY = OPEN 26 µs
tD2 Soft-start Time 2 DELAY = 0.001
F 210 290 415 µs
VCEH CE Input Voltage "H" 2.2 V
VCEL CE Input Voltage "L" 1.0 V
TTSD Therm al Shutdown
Temperature Junction Temperature 160 °C
TTSR Therm al Shutdown
Released Temperature Junction Temperature 135 °C
RLOW Low Output Nch Tr. ON
Resistance (R1517xxx1F) VIN = 14.0 V, VCE = 0 V 3.2 k
All test items listed under Electrical Characteristics are done under the pulse load condition (Tj Ta = 25°C) except for
Output Voltage Temperature Coefficient, Soft-start Time 1, and Soft-start Time 2.
R1517x
NO. EA304170112
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Product-specific Electrical Characteristics
The specifications surrounded by are guaranteed by design engineerin g at -40°C Ta 105°C.
R1517xxx1B/D/E/F (Ta = 25C)
Product Name VOUT [V] (Ta = 25°C) VOUT [V] (−40 Ta 105°C) VDIF [V]
Min. Typ. Max. Min. Typ. Max. Typ. Max.
R1517x251x 2.480 2.500 2.520 2.455 2.500 2.545 1.00
R1517x331x 3.274 3.300 3.326 3.241 3.300 3.359 0.45 0.77
R1517x341x 3.373 3.400 3.427 3.339 3.400 3.461
R1517x501x 4.960 5.000 5.040 4.910 5.000 5.090 0.35 0.62
R1517x851x 8.415 8.500 8.585 8.330 8.500 8.670 0.30 0.50
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment sho uld b e design ed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge. And the semiconductor d evices may receive seriou s damage when they continu e
to operate over the recommended operating conditions.
R1517x
NO. EA304170112
11
TYPICAL APPLICATION
R1517xxxxB/D
V
DD
V
OUT
GND
C2
V
OUT
CE
C1
CE Control
R1517xxxxB/D Typical Application
R
2
R
1
R1517x001C
GND
C2
V
FB
V
DD
CE
C1
V
OUT
V
OUT
CE
Control
R1517x001C Typical Application
R1517Jxx1E/F
V
DD
V
OUT
DELAY
GND
C2
CE
C
D
C1
V
OUT
CE Control
R1517xxxxE/F Typical Application
External Components:
Symbol Description
R1517xxxxB//D/E/F
C1 (CIN) 0.1µF (Ceramic)
C2 (COUT) 0.1µF (Ceramic)
R1517x001C
C1 (CIN) 0.1µF (Ceramic)
C2 (COUT) 1.0µF (Ceramic)
R1517x
NO. EA304170112
12
TECHNICAL NOTES
Phase Compensation
In LDO regulators, phase compensation is provided to secure stable operation even when the load current is
varied. For this purpose, use the capacitor C2 of 0.1 µF or more (R1517xxxxB/D/E/F) / 1.0 µF or more
(R1517x001C).
When using a tantalum type capacitor and the ESR (Equivalent Series Resistance) value is large, the output might
be unstable. Evaluate the circuit includi ng consideration of frequency characteristics.
For the externally adjustable output voltage type (R1517x001C), use 10 k or lower resi stance R2.
PCB Layout
Ensure the VDD and GND lines are sufficiently robust. If their impedance is too high, noise pickup or unstable
operation may result. Connect 0.1 µF or more of the capacitor C1 between the VDD and GND, and as close as
possible to the pins.
In addition, connect the capacitor C2 bet ween VOUT and GND, and as close as possible to the pins.
R1517x
NO. EA304170112
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OPERATION DESCRIPTION
Thermal Shutdown Function
Thermal shutdown function is included in this device. If the junction temperature is more than or equal to 160°C
(Typ.), the operation of the regul ator would stop. After that, when the junction temperature is less than or eq ual to
135°C (Typ.), the operation of the regulator wo uld restart. Unle ss the cause of ri sing tempe rature is removed, the
regulator repeats on and off, and output waveform would be like consecutive pulses.
Adjustable Output Voltage Setting (R1517x001C)
The output voltage of R1517x001C can be adj usted b y using th e e xternal divide r resi stor s (R1, R2). By u sing the
following equation, the output voltage (VOUT) can be determined. The voltage which is fixed inside the IC is
described as VFB.
VOUT = VFB x ((R1 + R2) / R2)
Recommended Range: 2.5 V VOUT 12.0 V
V
FB = 2.5 V
GND
VFB
RIC R2
IIC
I1
I2
R1
VFB
VOUT
VOUT
Output Voltage Adjustment Using External Divider Resistors (R1, R2)
RIC of the R1517x001C is approximately Typ. 1.35 M (Ta=25C, guaranteed by design engineering). For better
accuracy, setting R1 << RIC reduces errors. The resistance value for R2 should be set to 10 k or lower. It is
easily affected by noises when setting the value of R1 and R2 larger, which makes the impedance of VFB pin
larger.
RIC could be affected by the temperature, therefore evaluate the circuit taking the actual conditions of use into
account when deciding the resistance values for R1 and R2.
R1517x
NO. EA304170112
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Soft-start Function
R1517x is equipped with a constant slope circuit, which achieves a soft-start function. This circuit allows the output
voltage to start up gradually when the CE is turned on. The constant slope circuit minimizes the inrush current at
the start-up and also prevents the overshoot of the output voltage. For R1517xxxxB/C/D, the capacitor to create
the start-up slope is built in this device that does not require any external components. The start-up time and the
start-up slope angle are fixed inside the device. In R1517xxxxE/F, the soft-start time is adjustable by inserting the
external capacitor to DELAY pin. By using the following equation, the relation between the soft-start time tD [s]
and DELAY pin capacitor CD [F] is determined.
t
D = ((CD + 90 x 10-12) / IDELAY) x 0.73
When the capacitor CD is not used in R1517xxxxE/F, use the DELAY pin as OPEN. At that time, CD = 0 in the
above equation, therefore the start-up time is about 26 µs. However, be sure to consider approximately 50 µs of
CE delay time.
Conventional Inrush Current Limit Cir cuit Constant Slope Circuit
(Diagrammatic sketch) (Diagrammatic sketch)
CE Input Voltage
CE Delay Time Output Voltage
Inrush Current
CE Input Voltage
Output Voltage
CE Dela
y
Time Soft-start Time
Inrush Curren
t
R1517x
NO. EA304170112
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PACKAGE INFORMATION
POWER DISSIPATION (HSOP-6J)
The power dissi pation of the package is dependent on PCB material, layout, and environme ntal conditions. The
following conditions are used in this measurement.
Measurement Conditions
Ultra-high Wattage Land Pattern Standard Land Pattern
Environment Mounting on Board
(Wind Velocity = 0 m/s) Mounting on Board
(Wind Velocity = 0 m/s)
Board Material Glass Cloth Epoxy Plastic
(Four-layer Board) Glass Cloth Epoxy Plastic
(Double-sided Board)
Board Dimensions 76.2 mm × 114.3 mm × 0.8 mm 50 mm × 50 mm × 1.6 mm
Copper Ratio 96% 50%
Through-holes 0.3 mm × 28 pcs 0.5 mm × 24 pcs
Measurement Result
(Ta = 25°C, Tjmax = 125°C)
Ultra-high Wattage Land Pattern Standard Land Pattern Free Air
Power Dissipation 2700 mW 1700 mW 540 mW
Thermal Resistance 37°C/W 59°C/W 185°C/W
Power Dissipation vs. Ambient Temperature
The above graph shows the power dissipation of the
package at Tjmax = 125°C and Tjmax = 150°C. Operating
the device in the hatched range might have a negative
influence on its lifetime. The total hours of use and the total
years of use must be limited as follows:
Total Hours of Use Total Years of Use
(4 hours/day)
13,000 hours 9 years
Ultra-high Wattage
Standard
IC Mount Area (mm)
Measurement Board Pattern
0
250
500
750
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
0255075100125150
Power Dissipation PD(mW)
Ambient Temperature (°C)
2700
On Board
Ultra-high Wattage
Land Pattern
105 0
250
500
750
1000
1250
1500
1750
2000
2250
2500
2750
3000
3250
3500
0 255075100125150
Power Dissipation PD(mW)
Ambient Temperature (°C)
1700
On Board
Standard Land Pattern
670 Free Air
540
2100
105
3400
40
50
50
76.2
114.3
50
40
20
20
R1517x
NO. EA304170112
16
PACKAGE DIMENSI O NS (HSOP- 6J)
3.81
123
5.02±0.3
654
(Unit: mm)
0.10
0.12 M
0.605TYP.
0.15±0.1 1.5±0.1
1.67±0.1
0.4±0.1
0.60±0.2
0.2
6.0±0.3
3.9±0.2
+0.10
-0.05
HSOP-6J Package Dimensions
MARK SPECIFICATION (HSOP-6 J )
: Product Code … Refer to R1517S MARK SPECIFICATION TABLE
: Lot Number … Alphanumeric Serial Number


HSOP-6J Mark Specification
R1517x
NO. EA304170112
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R1517S MARK SPECIFICATION TABLE (HSOP-6J)
R1517Sxx1B R1517S001C
Product Name  VSET Product Name  VSET
R1517S252B V 1 2 5 2.5 V R1517S001C V 2 0 1 –
R1517S332B V 1 3 3 3.3 V
R1517S342B V 1 3 4 3.4 V
R1517S502B V 1 5 0 5.0 V
R1517S852B V 1 8 5 8.5 V
R1517Sxx1D R1517Sxx1E
Product Name  VSET Product Name  VSET
R1517S252D V 3 2 5 2.5 V R1517S251E V 4 2 5 2.5 V
R1517S332D V 3 3 3 3.3 V R1517S331E V 4 3 3 3.3 V
R1517S342D V 3 3 4 3.4 V R1517S341E V 4 3 4 3.4 V
R1517S502D
V
3 5 0 5.0 V R1517S501E
V
4 5 0 5.0 V
R1517S852D V 3 8 5 8.5 V R1517S851E V 4 8 5 8.5 V
R1517Sxx1F
Product Name  VSET
R1517S251F V 5 2 5 2.5 V
R1517S331F V 5 3 3 3.3 V
R1517S341F V 5 3 4 3.4 V
R1517S501F V 5 5 0 5.0 V
R1517S851F V 5 8 5 8.5 V
R1517x
NO. EA304170112
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POWER DISSIPATION (TO-252-5-P2)
Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the
measurement at the condition below:
Measurement Conditions
Ultra High Wattage Land Pattern Standard Land Pattern
Environment Mounting on board (Wind velocity 0 m/s)
Board Material Glass cloth epoxy plastic
(Four-layers) Glass cloth epoxy plastic
(Double layers)
Board
Dimensions 76.2 mm x 114.3 mm x 0.8 mm 50 mm x 50 mm x 1.6 mm
Copper Ratio Top, Back side: Approx. 96%,
2nd, 3rd: 100% Top side: App rox. 50%,
Back side: Approx. 50%
Through - hole 0.4 mm x 30 pcs 0.5 mm x 24 pcs
Measurement Result
(Ta = 25°C, Tjmax = 125°C)
Ultra High Wattage Land Pattern Standard Land Pattern
Power
Dissipation 3800 mW 1900 mW
Thermal
Resistance ja= (125-25C)/3.8 W = 26C/W ja=(125-25C)/1.9 W= 53C/W
jc= 7C/W jc= 17C/W
The above graph shows the Power Dissipation of the package based on Tjmax=125C and Tjmax=150C.
Operating the IC in the shaded area in the graph might have an influence it's lifetime. Operating time must be
within the time limit described in the table below, in case of operatin g in the shaded area.
Operating T ime Estimated years(Operating four hours/day)
13,000 hours 9years
5000
4000
3000
2000
1000
0
105
1900
2350
Power Dissipation
P
D
(mW)
0 25
50 75 100 125 150
Ambi ent Temp eratu re (C)
Power Dissipation
On Board
On Board
(Ultr a Hi gh Wattage Land Pattern)
3800
4800
Power Dissipation vs. Ambience Temperature Measurement Board Pattern
50
50
Standard
76.2
40
114.3
50
50
U ltra High Wattage
IC Mount Area (Unit: mm)
R1517x
NO. EA304170112
19
PACKAGE DIMENSI O NS (TO-252-5-P2)
(U ni t: mm)
0.500.10
0.500.10
(0～8)
1.52 +0.26
-0.13
(0～0.127)
S 0.12 M
0.500.10
2.300.20
(1.00)
0.10
(6.20)
6.600.20
5.340.20
6.100.20
(1.00)
9.900.30
1.100.20
C0.60
1.27
2.700.20
(4.06)
(3.56)
R0.325
R0.225
(4.19)
(1.50)
(5.04)
15
＊
TO-252-5-P2 Package Dimensions
MARK SPECIFICATION (TO-252-5-P2)
: Product Code … Refer to R1517J M ARK SPECIFICATION TABLE
⑩: Lot Number … Alphanumeric Serial Number
①②③④⑤⑥
⑦⑧ ⑨⑩
TO-252-5-P2 Mark Specification
*) The tab on the bottom of the package
enhances thermal performance and is
electrically connected to GND (substrate
level). The tab is recommended to
connect to the ground plane on the board.
Otherwise it may be left floating.
R1517x
NO. EA304170112
20
R1517J MARK SPECIFICATION TABLE (TO-252-5-P2)
R1517Jxx1B R1517J001C (Adjustable Out put Voltage Setting Type)
Product Name  VSET Product Name  VSET
R1517J251B K 1 J 2 5 1 B 2.5 V R1517J001C K 2 J 0 0 1 C
R1517J331B K 1 J 3 3 1 B 3.3 V
R1517J341B K 1 J 3 4 1 B 3.4 V
R1517J501B K 1 J 5 0 1 B 5.0 V
R1517J851B K 1 J 8 5 1 B 8.5 V
R1517Jxx1D R1517Jxx1E
Product Name  VSET Product Name  VSET
R1517J251D K 3 J 2 5 1 D 2.5 V R1517J251E K 4 J 2 5 1 E 2.5 V
R1517J331D K 3 J 3 3 1 D 3.3 V R1517J331E K 4 J 3 3 1 E 3.3 V
R1517J341D K 3 J 3 4 1 D 3.4 V R1517J341E K 4 J 3 4 1 E 3.4 V
R1517J501D K 3 J 5 0 1 D 5.0 V R1517J501E K 4 J 5 0 1 E 5.0 V
R1517J851D K 3 J 8 5 1 D 8.5 V R1517J851E K 4 J 8 5 1 E 8.5 V
R1517Jxx1F
Product Name  VSET
R1517J251F K 5 J 2 5 1 F 2.5 V
R1517J331F K 5 J 3 3 1 F 3.3 V
R1517J341F K 5 J 3 4 1 F 3.4 V
R1517J501F K 5 J 5 0 1 F 5.0 V
R1517J851F K 5 J 8 5 1 F 8.5 V
R1517x
NO. EA304170112
21
TEST CIRCUITS
Soft-start Internal Fixed Type (R1517xxxxB/D)
C1 RP132x
Series
V
DD
V
OUT
CE GND
V
C2 V
OUT
↓I
OUT
V
DD
V
OUT
CE GND
R1517xxxxB/D
R1517xxxxB/D Basic Test Circuit
C1
VDD VOUT
CE GND
A ISS
VOUT
RP132x
Series
VDD VOUT
CE GND
R1517xx
x
xB/D
C2
R1517xxxxB/D Supply Current Test Circuit
RP132x
Series
V
DD
V
OUT
CE GND
Pulse
Generator
↓I
OU
T
P.G.
V
DD
V
OUT
CE GND
V
FB
V
DD
V
OUT
CE GND
R1517xxxxB/D
C2
R1517xxxxB/D Ripple Rejection Test Circuit
I
OUTa
I
OUTb
C1 RP132x
Series
V
DD
V
OUT
CE GND
↓
↓
V
OUT
V
DD
V
OUT
CE GND
R1517xxxxB
/
D
C2
R1517xxxxB/D Load Transient Response Test Circuit
R1517x
NO. EA304170112
22
Adjustable Output Voltage Setting Type (R1517x001C)
C1 RP132x
Series
V
DD
V
OUT
CE GND
V
C2 V
OUT
↓I
OUT
V
DD
V
OUT
CE GND
R1517x001C
V
FB
R2
R1
R1517x001C Basic Test Circuit
C1
V
DD
V
OUT
CE GND
A I
SS
V
OUT
RP132x
Series R2
V
DD
V
OUT
CE GND
V
FB
C2
R1
R1517x001C
R1517x001C Supply Current Test Circuit
RP132x
Series
V
DD
V
OUT
CE GND
Pulse
Generator
↓I
OUT
P.G.
V
DD
V
OUT
CE GND
V
FB
R2
V
DD
V
OUT
CE GND
V
FB
C2
R1
R1517x001C
R1517x001C Ripple Rejection Test Circuit
I
OUTa
I
OUTb
C1 RP132x
Series
V
DD
V
OUT
CE GND
↓
↓
V
OUT
R2
V
DD
V
OUT
CE GND
V
FB
C2
R1
R1517x001C
R1517x001C Load Transient Response Test Circuit
Note: Refer to Adjustable Output Voltage Setting for R1 and R2.
R1517x
NO. EA304170112
23
Adjustable Soft-start Setting Type (R1517xxxxE/F)
C1 RP132x
Series
V
DD
V
OUT
CE GND
V
C2 V
OUT
↓
I
OUT
V
DD
V
OUT
CE GND
R1517xxxxE/F
DELA
C
D
DELA
C
D
R1517xxxxE/F Basic Test Circuit
C1
V
DD
V
OUT
CE GND
A I
SS
V
OUT
RP132x
Series
V
DD
V
OUT
CE GND
R1517xxxxE/F
C2
C
D
DELAY
R1517xxxxE/F Supply Current Test Circuit
RP132x
Series
V
DD
V
OUT
CE GND
Pulse
Generator
↓I
OUT
P.G.
V
DD
V
OUT
CE GND
V
FB
V
DD
V
OUT
CE GND
R1517xxxxE/F
C2
C
D
DELAY
R1517xxxxE/F Ripple Rej ection Test Circuit
I
OUTa
I
OUTb
C1 RP132x
Series
V
DD
V
OUT
CE GND
↓
↓
V
OUT
V
DD
V
OUT
CE GND
R1517xxxxE/F
C2
C
D
DELAY
R1517xxxxE/F Load Transient Response Test Circuit
Note: Refer to Soft-start Function for detailed information on CD.
R1517x
NO. EA304170112
24
TYPICAL CHARACTERISTICS
Note: Typical Characteristics are intended to be used as reference data; they are not guaranteed.
1) Output Voltage vs. Output Current (Ta = 25°C)
R1517x25xx, R151 7x001C R1517x33xx
R1517x50xx R1517x85xx
2) Output Voltage vs. Input Voltage (Ta = 25°C)
R1517x25xx R1517x33xx
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 200 400 600 800 1000
Output Cu rren t I
OUT
(mA)
O ut put Volt age V
OUT
(V)
VIN=3.5V
VIN=4.5V
VIN=5.5V
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0 200 400 600 800 1000
Output Cu rren t I
OUT
(mA)
O ut put Volt age V
OUT
(V)
VIN=4.3V
VIN=5.3V
VIN=6.3V
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0 200 400 600 800 1000
Output Cu rren t I
OUT
(mA)
O ut put Volt age V
OUT
(V)
VIN=6.0V
VIN=7.0V
VIN=8.0V
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
0 200 400 600 800 1000
Output Current I
OUT
(mA)
O ut put Voltage V
OUT
(V)
VIN=9.5V
VIN=10.5V
VIN=11.5V
0.0
0.5
1.0
1.5
2.0
2.5
3.0
012345
In put Vol tage V
IN
(V)
O ut put Volt age V
OUT
(V)
0mA
1mA
30mA
150mA
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0123456
Input Voltage V
IN
(V)
O utput Voltage V
OUT
(V)
0mA
1mA
30mA
150mA
R1517x
NO. EA304170112
25
R1517x50xx R1517x85xx
3) Supply Current vs. Input Voltage
R1517x25xx, R151 7x001C R1517x33xx
R1517x50xx R1517x85xx
0.0
1.0
2.0
3.0
4.0
5.0
6.0
01234567
Input Vol tage V
IN
(V)
Output Voltage V
OUT
(V)
0mA
1mA
30mA
150mA
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
01234567891011
Inpu t Volt age VIN (V)
Out put Voltage VOUT
(V)
0mA
1mA
30mA
150mA
0
5
10
15
20
25
30
0 6 12 18 24 30 36
Inpu t Volt age V
IN
(V)
Supply Curr ent I
IN
(uA)
0mA
0
5
10
15
20
25
30
0 6 12 18 24 30 36
Inpu t Volt age V
IN
(V)
Supply Curr ent I
IN
(uA)
0mA
0
5
10
15
20
25
30
0 6 12 18 24 30 36
Input Vol t age V
IN
(V)
Supply Curr ent I
IN
(uA)
0mA
0
5
10
15
20
25
30
0 6 12 18 24 30 36
Input Vol t age V
IN
(V)
Supply Cur r ent I
IN
(uA)
0mA
R1517x
NO. EA304170112
26
4) Output Voltage vs. Operating Temperature
R1517x25xx, R151 7x001C R1517x33xx
R1517x50xx R1517x85xx
2.450
2.475
2.500
2.525
2.550
-40 -20 0 20 40 60 80 100
Ta (°C)
Vout (V)
3.234
3.267
3.300
3.333
3.366
-40 -20 0 20 40 60 80 100
Ta (°C)
Vout (V)
4.900
4.950
5.000
5.050
5.100
-40 -20 0 20 40 60 80 100
Ta [° C]
Vout (V)
8.330
8.415
8.500
8.585
8.670
-40 -20 0 20 40 60 80 100
Ta [° C]
Vout (V)
R1517x
NO. EA304170112
27
5) Dropout Voltage vs. Output Current
R1517x25xx, R151 x001C R1517x33xx
R1517x50xx R1517x85xx
6) Ripple Rejection v s. Input Voltage (Ta = 25°C, Ripple = 0.5 Vpp)
R1517x25xx, R1517x001C (IOUT = 1 mA) R1517x25xx, R151 7x001C (IOUT = 150 mA)
0
200
400
600
800
1000
1200
0 100 200 300 400 500
Output Current I
OUT
(mA)
Dropout Voltage V
DIF
(mV)
-40℃
25℃
105℃
0
100
200
300
400
500
600
0 100 200 300 400 500
Output Curr e n t I
OUT
(mA)
Dropout Voltage V
DIF
(mV)
-40℃
25℃
105℃
0
50
100
150
200
250
300
350
400
450
500
0 100 200 300 400 500
Output Curr en t I
OUT
(mA)
Dropout Voltage V
DIF
(mV)
-40℃
25℃
105℃
0
50
100
150
200
250
300
350
400
0 100 200 300 400 500
Output Curr en t I
OUT
(mA)
Dropout Voltage V
DIF
(mV)
-40℃
25℃
105℃
0
10
20
30
40
50
60
70
80
90
100
03691215
Input Vol tage VIN(V)
Ri pple Re jecti on RR(dB)
100Hz
1kHz
10kHz
100kHz
0
10
20
30
40
50
60
70
80
90
100
03691215
Input V oltage V
IN
(V)
Ripple Rejection RR(dB)
100Hz
1kHz
10kHz
100kHz
R1517x
NO. EA304170112
28
R1517x33xx (IOUT = 1 mA) R1517x33xx (IOUT = 150 mA)
R1517x50xx (IOUT = 1 mA) R1517x50xx (IOUT = 150 mA)
R1517x85xx (IOUT = 1 mA) R1517x85xx (IOUT = 150 mA)
0
10
20
30
40
50
60
70
80
90
100
03691215
Input Voltage V
IN
(V)
Ri pple Reje ct ion RR(dB )
100Hz
1kHz
10kHz
100kHz
0
10
20
30
40
50
60
70
80
90
100
0 3 6 9 12 15
Input Voltage VIN (V)
Ripple Rejection RR(dB)
100Hz
1kHz
10kHz
100kHz
0
10
20
30
40
50
60
70
80
90
100
03691215
Input Voltage V IN (V)
Ripple Rejection RR(dB)
100Hz
1kHz
10kHz
100kHz
0
10
20
30
40
50
60
70
80
90
100
03691215
Input V oltage V IN (V)
Ripple Rejection RR(dB)
100Hz
1kHz
10kHz
100kHz
0
10
20
30
40
50
60
70
80
90
100
03691215
Input Voltage V IN (V)
Ripple Rejection RR(dB)
100Hz
1kHz
10kHz
100kHz
0
10
20
30
40
50
60
70
80
90
100
03691215
Input V oltage V IN [V]
Ripple Rejection RR(dB)
100Hz
1kHz
10kHz
100kHz
R1517x
NO. EA304170112
29
7) Ripple Rejection v s. Frequency (Ta = 25°C, Ripple = 0.5 Vpp)
R1517x25xx, R151 7x001C R1517x33xx
R1517x50xx R1517x85xx
8) Input Transient Response (Ta = 25°C, IOUT = 1 mA, tr = tf = 5 µs)
R1517x25xx, R151 7x001C (C2 = 0.1 μF) R1517x25xx, R1517x0 01C (C2 = 10 μF)
0
10
20
30
40
50
60
70
0.1 1 10 100 1000
Frequency (kHz)
Ripple Rejection RR(dB)
1mA
30mA
150mA
0
10
20
30
40
50
60
70
0.1 1 10 100 1000
Frequency (kHz)
Ripple Rejection RR(dB)
1mA
30mA
150mA
0
10
20
30
40
50
60
70
0.1 1 10 100 1000
Frequency (kHz)
Ripple Rejection RR(dB)
1mA
30mA
150mA
0
10
20
30
40
50
60
70
0.1 1 10 100 1000
Frequency (kHz)
Ri pple Rejecti on RR( dB)
1mA
30mA
150mA
3.5
4.0
4.5
5.0
0 50 100 150 200 250 300 350 400
Time t (s)
I nput Vol tage V
IN
(V )
1.5
2.0
2.5
3.0
Out pu t V ol tage V
OUT
(V )
Out put Vol t age
Input Volt age
3. 5V < => 4.5V
3.5
4.0
4.5
5.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Time t (ms)
I nput V o l t ag e V
IN
(V )
2.2
2.3
2.4
2.5
2.6
2.7
2.8
Out pu t Vol tage V
OUT
(V )
Output Voltage
Input V oltage
3.5V <=> 4.5V
R1517x
NO. EA304170112
30
R1517x33xx (C2 = 0.1 μF) R1517x33xx (C2 = 10 μF)
R1517x50xx (C2 = 0.1 μF) R1517x50xx (C2 = 10 μF)
R1517x85xx (C2 = 0.1 μF) R1517x85xx (C2 = 10 μF)
4.3
4.8
5.3
5.8
0 50 100 150 200 250 300 350 400
Time t (s)
I nput Vol tage V
IN
(V )
2.3
2.8
3.3
3.8
Out put V o l t age V
OUT
(V )
Output Voltage
Input V oltage
4.3V <=> 5.3V
4.3
4.8
5.3
5.8
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Time t (ms)
I nput V o l t ag e V
IN
(V )
3.0
3.1
3.2
3.3
3.4
3.5
Out pu t Vol tage V
OUT
(V )
Output Voltage
Input Volt age
4.3V <=> 5.3V
6.0
6.5
7.0
7.5
0 50 100 150 200 250 300 350 400
Time t (s)
I nput Volt age V
IN
(V)
4.0
4.5
5.0
5.5
O ut put Volt age V
OUT
(V)
Output Voltage
Inp u t Vo lta ge
6.0V <=> 7.0V
6.0
6.5
7.0
7.5
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Time t (ms)
I nput V oltage V
IN
(V)
4.7
4.8
4.9
5.0
5.1
5.2
O ut p ut V oltage V
OUT
(V)
Output Voltage
Input Vol tage
6.0V <= > 7. 0V
9.5
10.0
10.5
11.0
0 50 100 150 200 250 300 350 400
Time t (s)
I nput Vol tage V
IN
(V )
7.5
8.0
8.5
9.0
Out put V o l t age V
OUT
(V )
Output Voltage
Input V oltage
9.5V <=> 10.5V
9.5
10.0
10.5
11.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Time t (ms)
I nput V o l t ag e V
IN
(V )
8.2
8.3
8.4
8.5
8.6
8.7
Out pu t Vol tage V
OUT
(V )
Out put Vol t age
Input V ol tage
9.5V <=> 10.5V
R1517x
NO. EA304170112
31
9) Load Transient Response (Ta = 25°C, VIN = VOUT + 1.0 V, tr = tf = 0.5 μs)
R1517x25xx, R151 7x001C (C2 = 0.1 μF) R1517x25xx, R1517x0 01C (C2 = 10 μF)
R1517x33xx (C2 = 0.1 μF) R1517x33xx (C2 = 10 μF)
R1517x50xx (C2 = 0.1 μF) R1517x50xx (C2 = 10 μF)
0
150
300
0 100 200 300 400 500 600 700 800 900
Time t (s)
Output Current IOUT (mA)
-0.5
0.5
1.5
2.5
3.5
4.5
O utput V oltage VOUT (V)
O ut put Current
1mA <=>150mA
O ut put Volt age
0
150
300
0 500 1000 1500 2000 2500 3000 3500 4000
Time t (ms)
Output Cur r ent I
OUT
(mA)
2
2.25
2.5
2.75
3
Output Voltage V
OUT
(V)
Output Current
1mA <=>150mA
Output Voltage
0
150
300
0 100 200 300 400 500 600 700 800 900
Time t (s)
Output Current I
OUT
(mA)
0.3
1.3
2.3
3.3
4.3
5.3
O utput V oltage V
OUT
(V)
O utput Cur r e nt
1mA < = > 150mA
O utput Voltage
0
150
300
0 500 1000 1500 2000 2500 3000 3500 4000
Time t (ms)
Output Current I
OUT
(mA)
2.80
3.05
3.30
3.55
3.80
O utput V oltage V
OUT
(V)
O utput Cur r ent
1mA < = > 150mA
O utput Voltage
0
150
300
0 100 200 300 400 500 600 700 800 900
Time t (s)
Output Current I
OUT
(mA)
2
3
4
5
6
7
O utput V oltage V
OUT
(V)
O utput Cu r r ent
1mA <=>150mA
O utput Voltage
0
150
300
0 500 1000 1500 2000 2500 3000 3500 4000
Time t (ms)
Output Current I
OUT
(mA)
4.5
4.75
5
5.25
5.5
O utput V oltage V
OUT
(V)
O utput Cur r ent
1mA < = > 150mA
O utput Voltage
R1517x
NO. EA304170112
32
R1517x85xx (C2 = 0.1 μF) R1517x85xx (C2 = 10 μF)
10) CE Transient Respon se (Ta = 25°C, IOUT = 1 mA)
R1517x25xB/D, R1517x001C (C2 = 0.1 μF) R1517x25xD (C2 = 0.1 μF)
R1517x33xB/D (C2 = 0.1 μF)
R1517x33xD (C2 = 0.1 μF)
0
150
300
0 100 200 300 400 500 600 700 800 900
Time t (s)
Output Current I
OUT
(mA)
5.5
6.5
7.5
8.5
9.5
10.5
O utput V oltage V
OUT
(V)
O utput Cur r e nt
1mA < = > 150mA
O utput Voltage
0
150
300
0 500 1000 1500 2000 2500 3000 3500 4000
Time t (ms)
Output Current I
OUT
(mA)
8.00
8.25
8.50
8.75
9.00
O utput V oltage V
OUT
(V)
O utput Cur r ent
1mA < = > 150mA
O utput Voltage
0
3.5
7
-0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Time t (ms)
CE Input Voltage V
CE
(V)
0
1
2
3
4
5
Output Voltage V
OUT
(V)
VCE[V]
IOUT=0mA
IOUT=150mA
0
3.5
7
-0.20.00.20.40.60.81.01.21.4
Time t (ms)
CE Input Voltage VCE (V)
0
1
2
3
4
5
Output Voltage VOUT (V)
VCE[V]
IOUT=0mA
IOUT=150mA
0
3.5
7
-0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Time t (ms)
CE Input Voltage V
CE
(V)
0
1
2
3
4
5
Output Voltage V
OUT
(V)
VCE[V]
IOUT=0mA
IOUT=150mA
0
3.5
7
-0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Time t (ms)
CE Input Voltage V
CE
(V)
-1
0
1
2
3
4
5
Output Voltage V
OUT
(V)
VCE[V]
IOUT=0mA
IOUT=150mA
R1517x
NO. EA304170112
33
R1517x50xB/D (C2 = 0.1 μF) R1517x50xD (C2 = 0.1 μF)
R1517x85xB/D (C2 = 0.1 μF) R1517x85xD (C2 = 0.1 μF)
R1517x25xE/F (C2 = 0.1 μF, CD = 1 nF) R1517x25xF (C2 = 0.1 μF, CD = 1 nF)
0
6
12
-0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Time t (ms)
CE Input Voltage V
CE
(V)
0
1
2
3
4
5
6
7
Output Voltage V
OUT
(V)
VCE[V]
IOUT=0mA
IOUT=150mA
0
6
12
-0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Time t (ms)
CE Input Voltage V
CE
(V)
0
1
2
3
4
5
6
7
Output Voltage V
OUT
(V)
VCE[V]
IOUT=0mA
IOUT=150mA
0
9.5
19
-0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Time t (ms)
CE Input Voltage V
CE
(V)
0
2
4
6
8
10
12
Output Voltage V
OUT
(V)
VCE[V]
IOUT=0mA
IOUT=150mA
0
9.5
19
-0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Time t (ms)
CE Input Voltage V
CE
(V)
0
2
4
6
8
10
12
Output Voltage V
OUT
(V)
VIN
IOUT=0mA
IOUT=150mA
0
3.5
7
-0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Time t (ms)
CE I nput V ol t age V
CE
(V )
0
1
2
3
4
5
Out put Voltage V
OUT
(V )
VCE[V]
IOUT=0mA
IOUT=150mA
0
3.5
7
-0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Time t (ms)
CE Input Vol tage V
CE
(V)
0
1
2
3
4
5
Out put Voltage V
OUT
(V)
VCE[V]
IOUT=0mA
IOUT=150mA
R1517x
NO. EA304170112
34
R1517x33xE/F (C2 = 0.1 μF, CD = 1 nF) R1517x33xF (C2 = 0.1 μF, CD = 1 nF)
R1517x50xE/F (C2 = 0.1 μF, CD = 1 nF) R1517x50xF (C2 = 0.1 μF, CD = 1 nF)
R1517x85xE/F (C2 = 0.1 μF, CD = 1 nF) R1517x85xF (C2 = 0.1 μF, CD = 1 nF)
0
3.5
7
-0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Time t (ms)
CE Input Voltage V
CE
(V )
0
1
2
3
4
5
Out put Voltage V
OUT
(V )
VCE[V]
IOUT=0mA
IOUT=150mA
0
3.5
7
-0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Time t (ms)
CE Input Voltage V
CE
(V )
0
1
2
3
4
5
Out put V oltage V
OUT
(V )
VCE[V]
IOUT=0mA
IOUT=150mA
0
6
12
-0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Time t (ms)
CE Input Voltage V
CE
(V )
0
1
2
3
4
5
6
7
Out put V oltage V
OUT
(V)
VCE[V]
IOUT=0mA
IOUT=150mA
0
6
12
-0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Time t (ms)
CE Input Voltage V
CE
(V)
0
1
2
3
4
5
6
7
Out put Voltage V
OUT
(V)
VCE[V]
IOUT=0mA
IOUT=150mA
0
9.5
19
-0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Time t (ms)
CE I nput V ol t age V
CE
(V )
0
2
4
6
8
10
12
Out put Vol t age V
OUT
(V)
VCE[V]
IOUT=0mA
IOUT=150mA
0
9.5
19
-0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Time t (ms )
CE Inpu t V ol tag e V
CE
(V )
0
2
4
6
8
10
12
Output Vol t ag e V
OUT
(V)
VIN
IOUT=0mA
IOUT=150mA
R1517x
NO. EA304170112
35
11) Inrush Current Prevention Circuit (Ta = 25°C, IOUT = 1 mA)
R1517x25xB/D, R1517x001C R1517x33xB/D
R1517x50xB/D R1517x85xB/D
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Time t (ms)
I nput V oltage (V)
Out put V ol t age (V )
-100
0
100
200
300
400
500
600
700
800
900
1000
I n rush Cu rre nt (mA )
Input Vol t age
0.1uF
0.47uF
1.0uF
4.7uF
10uF
47uF
100uF
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0.00.10.20.30.40.50.60.70.80.91.0
Time t (ms)
Input Voltage(V)
Out put Vol tage (V )
-100
0
100
200
300
400
500
600
700
800
900
1000
Inrush Current (mA)
Input Vol t age
0.1uF
0.47uF
1.0uF
4.7uF
10uF
47uF
100uF
0
1
2
3
4
5
6
7
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Time t (ms)
Input Voltage (V)
Out put V ol t age (V)
-200
0
200
400
600
800
1000
I nr ush Cu rrent (mA)
Input Vol tage
0.1uF
0.47uF
1.0uF
4.7uF
10uF
47uF
100uF
0
2
4
6
8
10
12
0.00.10.20.30.40.50.60.70.80.91.0
Time t (ms)
I nput Vol t age(V )
Out pu t V ol t ag e (V )
-200
0
200
400
600
800
1000
I nr ush Cu rren t (mA)
Input Vol t age
0.1uF
0.47uF
1.0uF
4.7uF
10uF
47uF
100uF
R1517x
NO. EA304170112
36
R1517x25xE/F (CD = 10 nF) R1517x33xE/F (CD = 10 nF )
R1517x50xE/F (CD = 10 nF) R1517x85xE/F (CD = 10 nF )
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Time t (ms)
Input Voltage ( V)
Output Voltage (V)
-100
0
100
200
300
400
500
600
700
800
900
1000
Inrush Cu rre nt (mA)
Input Voltage
0.1uF
0.47uF
1.0uF
4.7uF
10uF
47uF
100uF
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Time t (ms)
Input Voltage(V)
Output Voltage (V)
-100
0
100
200
300
400
500
600
700
800
900
1000
Inru sh Curren t (mA)
Input V ol t age
0.1uF
0.47uF
1.0uF
4.7uF
10uF
47uF
100uF
0
1
2
3
4
5
6
7
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Time t (ms)
Input Voltage (V)
Output Voltage (V)
-200
0
200
400
600
800
1000
Inrush Current (mA)
Input V o l t a ge
0.1uF
0.47uF
1.0uF
4.7uF
10uF
47uF
100uF
0
2
4
6
8
10
12
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Time t (ms)
Input Voltage ( V))
Output Voltage (V)
-300
0
300
600
900
1200
Inrush Current (mA)
Inp u t Voltag e
0.1uF
0.47uF
1.0uF
4.7uF
10uF
47uF
100uF
R1517x
NO. EA304170112
37
ESR vs. Output Current
It is recommended that a ceramic type capacitor be used for this device. However , other types of capacitors having
lower ESR can also be used. The relation between the output current (IOUT) and the ESR of output capacitor is
shown below.
R1517xxxxB/D Test Circuit
R1517xxxxB/D
V
DD
CE
V
OUT
GND
C
IN
C
OUT
I
OUT
C
IN
=Ceramic0.1F, C
OUT
=Ceramic0.1F
ESR
R1517x001C Test Circuit
R1517x001C
V
DD
CE
V
OUT
GND
C
IN
C
OUT
I
OUT
C
IN
=Ceramic0.1F, C
OUT
=Ceramic0.1F
ESR
V
FB
R1517xxxxE/F Test Circuit
R1517xxxxE/F
V
DD
CE
V
OUT
GND
C
IN
C
OUT
I
OUT
C
IN
=Ceramic0.1F, C
OUT
=Ceramic0.1F
ESR
C
D
Measurement conditions
Frequency Band: 10 Hz to 2 MHz
Measurement Temperature: 40°C to 105°C
Hatched area: Noise level is 40 V (average) or below
Capacitor: C1 = Ceramic 0.1 F, C2 = 0.1 F
R1517x25xx Outpu t Current IOUT vs. ESR
R1517x85xx Outpu t Current IOUT vs. ESR
0.01
0.1
1
10
100
1000
0 100 200 300 400 500
Out put Current [m A]
ESR []
105°
C
-40°C
V i n= 2.5V to 36V
0.01
0.1
1
10
100
1000
0 100 200 300 400 500
Out put Current [m A]
ESR []
105°C
-40°C
V i n= 8.5V to 36V
Ricoh is committed to reducing the environmental loading materials in electrical devices
with a view to contributing to the protection of human health and the environment.
Ricoh has been providing RoHS compliant products since April 1, 2006 and Halogen-free products since
April 1, 2012.
Halogen Free
https://www.e-devices.ricoh.co.jp/en/
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takingoutofyourcountrytheproductsorthetechnicalinformationdescribedherein.
4.Thetechnicalinformationdescribedinthisdocumentshowstypicalcharacteristicsofandexampleapplicationcircuits
fortheproducts.Thereleaseofsuchinformationisnottobeconstruedasawarrantyoforagrantoflicenseunder
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applications (office equipment, telecommunication equipment, measuring instruments, consumer electronic products,
amusementequipment etc.).Those customersintending to usea productin anapplication requiringextremequality
andreliability,forexample,inahighlyspecificapplicationwherethefailureormisoperationoftheproductcouldresult
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arelikelytofailwithcertainprobability.Inordertopreventanyinjurytopersonsordamagestopropertyresultingfrom
suchfailure,customersshouldbecarefulenoughtoincorporatesafetymeasuresintheirdesign,suchasredundancy
feature,firecontainmentfeatureandfail-safefeature.Wedonotassumeanyliability
orresponsibilityforanylossor
damagearisingfrommisuseorinappropriateuseoftheproducts.
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characteristicsintheevaluationstage.
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characteristicsoftheproductsunderoperationorstorage.
10.There can be variation in the marking when different AOI (Automated Optical Inspection) equipment is used. In the
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11.
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