RP103x SERIES
LOW NOISE 150mA LDO REGULATOR
NO.EA-149-131018
1
OUTLINE
The RP103x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low
supply current, low ON-resistance, and high ripple rejection. Each of these ICs consists of a voltage reference
unit, an error amplifier, resistor-net for voltage setting, a current limit circuit, and a chip enable circuit.
These ICs perform with low dropout voltage and a chip enable function. The line transient response and load
transient response of the RP103x Series are excellent, thus these ICs are very suitable for the power supply for
hand-held communication equipment.
The output voltage of these ICs is fixed with high accuracy. Since the packages for these ICs are
DFN(PLP)1010-4, SC-82AB, SC-88A (Non-promotion), SOT-23-5, therefore high density mounting of the ICs on
boards is possible.
FEATURES
• Supply Current .............................................................Typ. 36μA
• Standby Mode ..............................................................Typ. 0.1μA
• Dropout Voltage............................................................Typ. 0.21V (IOUT=150mA, VOUT=2.8V)
• Ripple Rejection ...........................................................Typ. 75dB (f=1kHz)
• Temperature-Drift Coefficient of Output Voltage ..........Typ. ±30ppm/°C
• Line Regulation ............................................................Typ. 0.02%/V
• Output Voltage Accuracy..............................................±1.0%
• Packages......................................................................
DFN(PLP)1010-4, SC-82AB, SC-88A (
Non-promotion
),
SOT-23-5
• Input Voltage Range.....................................................1.7V to 5.25V
• Output Voltage Range ..................................................1.2V to 3.3V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
• Built-in Fold Back Protection Circuit.............................Typ. 40mA (Current at short mode)
• Ceramic capacitors are recommended to be used with this IC .... 0.47μF or more
APPLICATIONS
• Power source for portable communication equipment.
• Power source for electrical appliances such as cameras, VCRs and camcorders.
• Power source for battery-powered equipment.
• Power source for home appliances.
RP103x
NO.EA-149-131018
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BLOCK DIAGRAMS
RP103xxxxB RP103xxxxD
V
DD
GND
V
OUT
CE
Vref
Current Limit
V
DD
GND
V
OUT
CE
Vref
Current Limit
SELECTION GUIDE
The output voltage, auto discharge function, package, and the taping type, etc. for the ICs can be selected at
the user’s request.
Product Name Package Quantity per Reel Pb Free Halogen Free
RP103Kxx1∗-TR DFN(PLP)1010-4 10,000 pcs Yes Yes
RP103Qxx1∗-TR-FE SC-82AB 3,000 pcs Yes Yes
RP103Qxx2∗-TR-FE SC-88A
(Non-promotion) 3,000 pcs Yes Yes
RP103Nxx1∗-TR-FE SOT-23-5 3,000 pcs Yes Yes
xx: The set output voltage (VSET) can be designated in the range from 1.2V to 3.3V in 0.1V steps.
Exception: 1.85V=RP103x18x∗5-xx
2.85V=RP103x28x∗5-xx
∗: CE pin polarity and auto discharge function at off state are options as follows.
(B) "H" active, without auto discharge function at off state
(D) "H" active, with auto discharge function at off state
The products scheduled to be discontinued : "Non-promotion"
These products will be discontinued in the future. We advise you to select other products.
RP103x
NO.EA-149-131018
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PIN CONFIGURATIONS
• DFN(PLP)1010-4 • SC-82AB • SC-88A • SOT-23-5
Top View
2 1
3 4
Bottom Vi ew
1 2
4 3
∗
12
34
(mark side)
54
13
2
(mark side)
1
4
5
23
(mark side)
PIN DESCRIPTIONS
• DFN(PLP)1010-4
Pin No Symbol Pin Description
1 VOUT Output Pin
2 GND Ground Pin
3 CE Chip Enable Pin ("H" Active)
4 VDD Input Pin
∗) The tab on the bottom of the package enhances thermal performance and is electrically connected to GND (substarate
level). It is recommended that the tab be connected to the ground plane on the board. If not, the tab can be left open.
• SC-82AB
Pin No Symbol Pin Description
1 CE Chip Enable Pin ("H" Active)
2 GND Ground Pin
3 VOUT Output Pin
4 VDD Input Pin
• SC-88A (Non-promotion)
Pin No Symbol Pin Description
1 CE Chip Enable Pin ("H" Active)
2 NC No Connection
3 GND Ground Pin
4 VOUT Output Pin
5 VDD Input Pin
• SOT-23-5
Pin No Symbol Pin Description
1 VDD Input Pin
2 GND Ground Pin
3 CE Chip Enable Pin ("H" Active)
4 NC No Connection
5 VOUT Output Pin
RP103x
NO.EA-149-131018
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ABSOLUTE MAXIMUM RATINGS
Symbol Item Rating Unit
VIN Input Voltage 6.0 V
VCE Input Voltage (CE Pin) 6.0 V
VOUT Output Voltage −0.3 to VIN+0.3 V
IOUT Output Current 180 mA
Power Dissipation∗ (DFN(PLP)1010-4) 400
Power Dissipation∗ (SC-82AB) 380
Power Dissipation∗ (SC-88A) (Non-promotion) 380
PD
Power Dissipation∗ (SOT-23-5) 420
mW
Topt Operating Temperature Range −40 to 85 °C
Tstg Storage Temperature Range −55 to 125 °C
∗) For Power Dissipation, please refer to PACKAGE 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.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed 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 devices may receive serious damage when they continue
to operate over the recommended operating conditions.
RP103x
NO.EA-149-131018
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ELECTRICAL CHARACTERISTICS
• RP103xxxxB/D
VIN= VSET + 1V (VOUT>1.5V), VIN=2.5V (VOUT≤1.5V), IOUT=1mA, CIN=COUT=0.47µF, unless otherwise noted.
The specifications surrounded by are guaranteed by Design Engineering at −40°C ≤ Ta ≤ 85°C.
RP103x Series (Ta=25°C)
Symbol Item Conditions MIN. TYP. MAX. Unit
Ta=25°C
VOUT
x0.99
(-20mV)
VOUT
x1.01
(20mV)
VOUT Output Voltage*1
-40°C
<
=
Ta
<
=
85°C
VOUT
x0.985
(-30mV)
VOUT
x1.015
(30mV)
V
IOUT Output Current 150 mA
ΔVOUT
/ΔIOUT Load Regulation 1mA
<
=
IOUT
<
=
150mA 10 30
mV
VDIF Dropout Voltage Please see the data table on next page
ISS Supply Current IOUT = 0mA 36 50
µA
Istandby Supply Current (Standby) VCE = 0V 0.1 1.0 µA
ΔVOUT
/ΔVIN Line Regulation VSET+0.5V
<
=
VIN
<
=
5.0V 0.02 0.10
%/V
RR Ripple Rejection
f = 1kHz, Ripple 0.2Vp-p
VIN = VSET+1V, IOUT = 30mA
(In case that VOUT
<
=
2.0V, VIN=3V)
75 dB
VIN Input Voltage*2 1.7 5.25 V
ΔVOUT
/ΔTa
Output Voltage
Temperature Coefficient - 40°C
<
=
Ta
<
=
85°C ±30
ppm
/°C
ISC Short Current Limit VOUT = 0V 40 mA
IPD CE Pull-down Current 0.3 µA
VCEH CE Input Voltage “H” 1.1 V
VCEL CE Input Voltage “L” 0.3 V
en Output Noise*3 BW = 10Hz to 100kHz
IOUT = 30mA 60 µVrms
RLOW
Nch On Resistance
for Auto Discharge
(D Version Only) VIN = 4.0V, VCE = 0V 30 Ω
All test items listed under Electrical Characteristics are done under the pulse load condition (Tj≈Ta=25ºC) except for Output Noise,
Ripple Rejection, and Output Voltage Temperature Coefficient.
*1 When VOUT≤2.0V, Output voltage accuracy is ±20mV. (When - 40°C≤Ta≤85°C, Output voltage accuracy is ±30mV)
*2 Maximum input voltage is 5.25V. If, for any reason the input voltage exceeds 5.25V, it has to be no more than 5.5V,
and total operating time should be within 500 hours.
*3 Output noise is highly dependent on Set output voltage. Please contact us if this matters.
RP103x
NO.EA-149-131018
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The specifications surrounded by are guaranteed by Design Engineering at −40°C ≤ Ta ≤ 85°C.
Dropout Voltage (Ta=25°C)
Dropout Voltage VDIF (V)
Set Output Voltage
VSET (V) Condition TYP. MAX.
1.2V ≤ VSET < 1.5V 0.500 0.620
1.5V ≤ VSET < 1.7V 0.380 0.470
1.7V ≤ VSET < 2.0V 0.340 0.420
2.0V ≤ VSET < 2.5V 0.280 0.360
2.5V ≤ VSET < 2.8V 0.220 0.300
2.8V ≤ VSET ≤ 3.3V
IOUT=150mA
0.210 0.270
RP103x
NO.EA-149-131018
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TYPICAL APPLICATION
C1 RP103x
Series
VDD VOUT
CE GND
C2
VOUT
(External Components)
C2 0.47μF MURATA: GRM155B30J474KE18B
TECHNICAL NOTES
When using the RP103x Series, please consider the following points.
Phase Compensation
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, use a capacitor C2 with good frequency characteristics and ESR (Equivalent Series Resistance).
(Note: If additional ceramic capacitors are connected with parallel to the output pin with an output capacitor for
phase compensation, the operation might be unstable. Because of this, test these ICs with as same external
components as ones to be used on the PCB.)
PCB Layout
Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result.
Connect a capacitor C1 with a capacitance value as much as 0.47μF or more between VDD and GND pin, and as
close as possible to the pins.
Set external components, especially the output capacitor C2, as close as possible to the ICs, and make wiring
as short as possible.
RP103x
NO.EA-149-131018
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0
100
200
300
400
500
600
0 25 50 75 100 125 150
A
mbient Tem
p
erature
(
°C
)
Power Dissi
p
ation PD
(
mW
)
85
400
500
PACKAGE INFORMATION
• Power Dissipation (DFN(PLP)1010-4)
Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the
measurement at the condition below:
Measurement Conditions
Standard Land Pattern
Environment Mounting on Board (Wind Velocity=0m/s)
Board Material Glass Cloth Epoxy Plastic (Double-sided)
Board Dimensions 40mm x 40mm x 1.6mm
Copper Ratio Topside: Approx. 50%, Backside: Approx. 50%
Through-holes φ 0.54mm x 24pcs
Measurement Result (Ta=25°C)
Standard Land Pattern
Power Dissipation 400mW (Tjmax=125°C)
500mW (Tjmax=150°C)
Thermal Resistance θja = (125-25°C)/0.4W= 250°C/W
θjc = 67°C/W
Measurement Board Pattern
Power Dissipation IC Mount Area (Unit:mm)
The above graph shows the Power Dissipation of the package based on Tjmax=125°C and Tjmax=150°C.
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 operating in the shaded
area.
Operating Time Estimated years
(Operating 4 hours/day)
13,000 hours 9 years
40
40
RP103x
NO.EA-149-131018
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• Package Dimensions (DFN(PLP)1010-4)
• Mark Specification (DFN(PLP)1010-4)
cd: Product Code … Refer to RP103Kxx1x Series Mark S pecification Table.
ef: Lot No. … Alphanumeric Serial Number
1.00
1.00
A B
0.05
X4
INDEX
S 0.05 S
0.6MAX.
0.05MIN.
*
3 4
12
0.25±0.05
0.32±0.05
0.48
±0.05
0.65
3-C0.18
0.07±0.05
0.25±0.05
0.05 M S AB
0.48
±0.05
45°
0.25±0.05
(Unit : mm
Bot tom View
*) Tab is GND level. (They are connected to the
reverse side of this IC.)
The tab is better to be connected to the GND,
but leaving it open is also acceptable.
*The tab on the bottom of the package enhances thermal
performance and is electrically connected to GND
(substarate level). It is recommended that the tab be
connected to the ground plane on the board. If not, the tab
can be left open.
①②
③④
RP103x
NO.EA-149-131018
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• RP103KSeries Mark Specification Table (DFN(PLP)1010-4)
RP103Kxx1B RP103Kxx1D
Part Number cd VSET Part Number cd VSET
RP103K121B 7A 1.2V RP103K121D 8A 1.2V
RP103K131B 7B 1.3V RP103K131D 8B 1.3V
RP103K141B 7Y 1.4V RP103K141D 8Y 1.4V
RP103K151B 7C 1.5V RP103K151D 8C 1.5V
RP103K161B 7X 1.6V RP103K161D 8X 1.6V
RP103K171B 7Z 1.7V RP103K171D 8Z 1.7V
RP103K181B 7D 1.8V RP103K181D 8D 1.8V
RP103K191B 7F 1.9V RP103K191D 8F 1.9V
RP103K201B 7G 2.0V RP103K201D 8G 2.0V
RP103K211B 7T 2.1V RP103K211D 8T 2.1V
RP103K221B 7W 2.2V RP103K221D 8W 2.2V
RP103K231B 7S 2.3V RP103K231D 8S 2.3V
RP103K241B 9A 2.4V RP103K241D 0A 2.4V
RP103K251B 7H 2.5V RP103K251D 8H 2.5V
RP103K261B 7J 2.6V RP103K261D 8J 2.6V
RP103K271B 7K 2.7V RP103K271D 8K 2.7V
RP103K281B 7L 2.8V RP103K281D 8L 2.8V
RP103K291B 7N 2.9V RP103K291D 8N 2.9V
RP103K301B 7P 3.0V RP103K301D 8P 3.0V
RP103K311B 7Q 3.1V RP103K311D 8Q 3.1V
RP103K321B 7U 3.2V RP103K321D 8U 3.2V
RP103K331B 7R 3.3V RP103K331D 8R 3.3V
RP103K181B5 7E 1.85V RP103K181D5 8E 1.85V
RP103K281B5 7M 2.85V RP103K281D5 8M 2.85V
RP103x
NO.EA-149-131018
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• Power Dissipation (SC-82AB)
Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the
measurement at the condition below:
Measurement Conditions
Standard Land Pattern
Environment Mounting on Board (Wind Velocity=0m/s)
Board Material Glass Cloth Epoxy Plastic (Double-sided)
Board Dimensions 40mm × 40mm × 1.6mm
Copper Ratio Topside: Approx. 50%, Backside: Approx. 50%
Through-hole φ0.5mm × 44pcs
Measurement Result (Ta=25°C)
Standard Land Pattern Free Air
Power Dissipation 380mW (Tjmax=125ºC)
475mW (Tjmax=150ºC) 150mW (Tjmax=125ºC)
Thermal Resistance θja=(125-25°C)/0.38W=263°C/W 667°C/W
Power Dissip ation
The above graph shows the Power Dissipation of the package based on Tjmax=125°C and Tjmax=150°C.
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 operating in the shaded
area.
Operating Time Estimated years
(Operating 4 hours/day)
13,000 hours 9 years
0
100
200
300
400
500
600
0 25 50 75 100 125 150
Ambient Temperature (ºC)
Power Dissipation PD (mW)
150
85
380 Free Air
On Board
475
Measurement Board Pattern
IC Mount Area (Unit : mm)
40
40
RP103x
NO.EA-149-131018
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• Power Dissipation (SC-82AB)
• Mark Specification (SC-82AB)
cd: Product Code … Refer to RP103Qxx1x Series Mark Specification Table.
ef: Lot No. … Alphanumeric Serial Number
2±0.2
1.3±0.2
4
1 2
3
+0.2
1.25-0.1
2.1±0.3
0.3±0.1
Unit : mm
0.4±0.1
0.3±0.1
0.05
(0.7)
0.9±0.1
0 to 0.1
0.16
-
0.06
+0.1
0.3±0.2
0.3±0.1
1.0
-
0.2
+0.05
4
12
3
cd
ef
RP103x
NO.EA-149-131018
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• RP103Qxx1xSeries Mark Specification Table (SC-82AB)
RP103Qxx1B RP103Qxx1D
Part Number cd VSET Part Number cd VSET
RP103Q121B G0 1.2V RP103Q121D J0 1.2V
RP103Q131B G1 1.3V RP103Q131D J1 1.3V
RP103Q141B W2 1.4V RP103Q141D X2 1.4V
RP103Q151B G2 1.5V RP103Q151D J2 1.5V
RP103Q161B W1 1.6V RP103Q161D X1 1.6V
RP103Q171B W3 1.7V RP103Q171D X3 1.7V
RP103Q181B G3 1.8V RP103Q181D J3 1.8V
RP103Q191B G5 1.9V RP103Q191D J5 1.9V
RP103Q201B G6 2.0V RP103Q201D J6 2.0V
RP103Q211B H7 2.1V RP103Q211D K7 2.1V
RP103Q221B W0 2.2V RP103Q221D X0 2.2V
RP103Q231B H6 2.3V RP103Q231D K6 2.3V
RP103Q241B W4 2.4V RP103Q241D X4 2.4V
RP103Q251B G7 2.5V RP103Q251D J7 2.5V
RP103Q261B G8 2.6V RP103Q261D J8 2.6V
RP103Q271B G9 2.7V RP103Q271D J9 2.7V
RP103Q281B H0 2.8V RP103Q281D K0 2.8V
RP103Q291B H2 2.9V RP103Q291D K2 2.9V
RP103Q301B H3 3.0V RP103Q301D K3 3.0V
RP103Q311B H4 3.1V RP103Q311D K4 3.1V
RP103Q321B H8 3.2V RP103Q321D K8 3.2V
RP103Q331B H5 3.3V RP103Q331D K5 3.3V
RP103Q181B5 G4 1.85V RP103Q181D5 J4 1.85V
RP103Q281B5 H1 2.85V RP103Q281D5 K1 2.85V
RP103x
NO.EA-149-131018
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• Power Dissipation (SC-88A)
Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the
measurement at the condition below:
Measurement Conditions
Standard Land Pattern
Environment Mounting on Board (Wind Velocity=0m/s)
Board Material Glass Cloth Epoxy Plastic (Double-sided)
Board Dimensions 40mm x 40mm x 1.6mm
Copper Ratio Topside: Approx. 50%, Backside: Approx. 50%
Through-hole φ0.5mm x 44pcs
Measurement Result (Ta=25°C)
Standard Land Pattern Free Air
Power Dissipation 304mW (Tjmax=125°C)
380mW (Tjmax=150°C) 150mW (Tjmax=150°C)
θja=(125-25°C)/0.38W=263°C/W θja=(125-25°C)/0.15W=667°C/W
Thermal Resistance
θjc=75°C/W -
The above graph shows the Power Dissipation of the package based on Tjmax=125°C and Tjmax=150°C.
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 operating in the shaded
area.
Operating Time Estimated years
(Operating 4 hours/day)
13,000 hours 9 years
0
100
200
300
400
500
600
0 25 50 75 100 125 150
Ambient Temperature (ºC)
Power Dissip ation
Power Dissipation PD (mW)
85
Free Air
On Board
304
380
150
Measurement Board Pattern
IC Mount Area (Unit : mm)
40
40
RP103x
NO.EA-149-131018
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• Power Dimensions (SC-88A)
• Mark Specification (SC-88A)
①②③④: Product Code … Refer to RP103Qx x2x Series Mark Specification Table.
⑤⑥: Lot No. … Alphanumeric Serial Number
2.0±0.2
1.3±0.2
5
1 2 3
4
+0.2
-0.1
1.25
2.1±0.3
0～0.1
Unit : mm
0.2
A
0.65
0.15±0.07
0～14°
0.15
0.36±0.1
+0.1
-0.05
B
0.10 SAB
0.10 S
+0.1
-0.2
0.9
1.1Max.
S
①②③
④⑤⑥
5
1 2 3
4
RP103x
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• RP103Qxx2xSeries Mark Specification Table (SC-88A)
RP103Qxx2B RP103Qxx2D
Part Number ①②③④ VSET Part Number ①②③④ VSET
RP103Q122B G00 1 1.2V RP103Q122D H0 01 1.2V
RP103Q132B G00 2 1.3V RP103Q132D H0 02 1.3V
RP103Q142B G02 3 1.4V RP103Q142D H0 23 1.4V
RP103Q152B G00 3 1.5V RP103Q152D H0 03 1.5V
RP103Q162B G02 2 1.6V RP103Q162D H0 22 1.6V
RP103Q172B G02 4 1.7V RP103Q172D H0 24 1.7V
RP103Q182B G00 4 1.8V RP103Q182D H0 04 1.8V
RP103Q192B G00 6 1.9V RP103Q192D H0 06 1.9V
RP103Q202B G00 7 2.0V RP103Q202D H0 07 2.0V
RP103Q212B G00 8 2.1V RP103Q212D H0 08 2.1V
RP103Q222B G02 1 2.2V RP103Q222D H0 21 2.2V
RP103Q232B G00 9 2.3V RP103Q232D H0 09 2.3V
RP103Q242B G02 5 2.4V RP103Q242D H0 25 2.4V
RP103Q252B G01 0 2.5V RP103Q252D H0 10 2.5V
RP103Q262B G011 2.6V RP103Q262D H 011 2.6V
RP103Q272B G01 2 2.7V RP103Q272D H0 1 2 2.7V
RP103Q282B G01 3 2.8V RP103Q282D H0 1 3 2.8V
RP103Q292B G01 5 2.9V RP103Q292D H0 1 5 2.9V
RP103Q302B G01 6 3.0V RP103Q302D H0 1 6 3.0V
RP103Q312B G01 7 3.1V RP103Q312D H0 1 7 3.1V
RP103Q322B G01 8 3.2V RP103Q322D H0 18 3.2V
RP103Q332B G01 9 3.3V RP103Q332D H0 1 9 3.3V
RP103Q182B5 G005 1.85V RP103Q182D5 H0 05 1.85V
RP103Q282B5 G014 2.85V RP103Q282D5 H0 14 2.85V
RP103x
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0
100
200
300
400
500
600
0 25 50 75 100 125 150
A
mbient Temperature (°C)
Power Dissipation PD (mW)
250
420
525
85
Free Air
On Board
• Power Dissipation (SOT-23-5)
Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the
measurement at the condition below. (Power Dissipation (SOT-23-5) is substitution of SOT-23-6.)
Measurement Conditions
Standard Land Pattern
Environment Mounting on Board (Wind Velocity=0m/s)
Board Material Glass Cloth Epoxy Plastic (Double-sided)
Board Dimensions 40mm x 40mm x 1.6mm
Copper Ratio Topside: Approx. 50%, Backside: Approx. 50%
Through-holes φ 0.5mm x 44pcs
Measurement Result (Ta=25°C)
Standard Land Pattern Free Air
Power Dissipation 420mW (Tjmax=125°C)
525mW (Tjmax=150°C) 250mW (Tjmax=125°C)
Thermal Resistance θja = (125-25°C)/0.42W= 238°C/W 400°C/W
Measurement Board Pattern
Power Dissipation IC Mount Area (Unit: mm)
The above graph shows the Power Dissipation of the package based on Tjmax=125°C and Tjmax=150°C.
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 operating in the shaded
area.
Operating Time Estimated years
(Operating 4 hours/day)
9,000 hours 6 years
RP103x
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• Power Dimensions (SOT-23-5)
• Mark Specification (SOT-23-5)
cde: Product Code ... Refer to RP103Nxx1x Series Mark Specification Table.
fg: Lot No. … Alphanumeric Serial Number
2.9±0.2
1.9±0.2
(0.95) (0.95)
5 4
1 2 3
1.6
-
0.1
+0.2
2.8±0.3
0.4±0.1
0.8±0.1
1.1±0.1
0～0.1
0.15
-
0.05
+0.1
Unit : mm
0.2min.
54
cdefg
123
RP103x
NO.EA-149-131018
19
• RP103Nxx1xSeries Mark Specification Table (SOT-23-5)
RP103Nxx1B RP103Nxx1D
Part Number cde VSET Part Number cde VSET
RP103N121B 80A 1.2V RP103N121D 81A 1.2V
RP103N131B 80B 1.3V RP103N131D 81B 1.3V
RP103N141B 80Y 1.4V RP103N141D 81Y 1.4V
RP103N151B 80C 1.5V RP103N151D 81C 1.5V
RP103N161B 80X 1.6V RP103N161D 81X 1.6V
RP103N171B 80Z 1.7V RP103N171D 81Z 1.7V
RP103N181B 80D 1.8V RP103N181D 81D 1.8V
RP103N191B 80F 1.9V RP103N191D 81F 1.9V
RP103N201B 80G 2.0V RP103N201D 81G 2.0V
RP103N211B 80T 2.1V RP103N211D 81T 2.1V
RP103N221B 80W 2.2V RP103N221D 81W 2.2V
RP103N231B 80S 2.3V RP103N231D 81S 2.3V
RP103N241B 82A 2.4V RP103N241D 83A 2.4V
RP103N251B 80H 2.5V RP103N251D 81H 2.5V
RP103N261B 80J 2.6V RP103N261D 81J 2.6V
RP103N271B 80K 2.7V RP103N271D 81K 2.7V
RP103N281B 80L 2.8V RP103N281D 81L 2.8V
RP103N291B 80N 2.9V RP103N291D 81N 2.9V
RP103N301B 80P 3.0V RP103N301D 81P 3.0V
RP103N311B 80Q 3.1V RP103N311D 81Q 3.1V
RP103N321B 80U 3.2V RP103N321D 81U 3.2V
RP103N331B 80R 3.3V RP103N331D 81R 3.3V
RP103N181B5 80E 1.85V RP103N181D5 81E 1.85V
RP103N281B5 80M 2.85V RP103N281D5 81M 2.85V
RP103x
NO.EA-149-131018
20
TEST CIRCUITS
C1 RP103x
Series
V
DD
V
OUT
CE GND
V
C2 V
OUT
I
OUT
C1=Ceramic 0.47μF
C2=Ceramic 0.47μF
Basic Test Circuit
C1 RP103x
Series
V
DD
V
OUT
CE GND
C2
A I
SS
C1=Ceramic 0.47μF
C2=Ceramic 0.47μF
V
OUT
Test Circuit for Supply Current
RP103x
Series
V
DD
V
OUT
CE GND
C2
Pulse
Generator
I
OUT
C2=Ceramic 0.47μF
P. G.
Test Circuit for Ripple Rejection
C1 RP103x
Series
V
DD
V
OUT
CE GND
C2
I
OUTa
I
OUTb
C1=Ceramic 0.47μF
C2=Ceramic 0.47μF
V
OUT
Test Circuit for Load Transient Response
RP103x
NO.EA-149-131018
21
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current (C1=0.47μF, C2=0.47μF, Ta=25°C)
RP103x12xx RP103x25xx
V
IN=
2.2V
V
IN=
3.6V
V
IN=
4.2V
V
IN=
5.0V
V
IN=
5.5V
0 400200 300100 500
Output Current I
OUT
(mA)
Output Voltage V
OUT
(V)
0
1.4
1.0
0.8
0.6
1.2
0.4
0.2
V
IN=
3.5V
V
IN=
4.2V
V
IN=
5.0V
V
IN=
5.5V
0 400200 300100 500
Output Current I
OUT
(mA)
Output Voltage V
OUT
(V)
0
3.0
2.5
2.0
1.5
1.0
0.5
RP103x33xx
V
IN=
4.3V
V
IN=
5.0V
V
IN=
5.5V
0 400200 300100 500
Output Current I
OUT
(mA)
Output Voltage V
OUT
(V)
0
3.5
2.5
2.0
1.5
3.0
1.0
0.5
2) Output Voltage vs. Input Voltage (C1=0.47μF, C2=0.47μF, Ta=25°C)
RP103x12xx RP103x25xx
I
OUT
=1mA
I
OUT
=30mA
I
OUT
=50mA
043215
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
1.4
1.0
0.8
0.6
1.2
0.4
0.2
I
OUT
=1mA
I
OUT
=30mA
I
OUT
=50mA
043215
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
2.8
2.0
1.6
1.2
2.4
0.8
0.4
RP103x
NO.EA-149-131018
22
RP103x33xx
I
OUT
=1mA
I
OUT
=30mA
I
OUT
=50mA
043215
Input Voltage V
IN
(V)
Output Voltage V
OUT
(V)
0
3.5
2.5
2.0
1.5
3.0
1.0
0.5
3) Supply Current vs. Input Voltage (C1=0.47μF, C2=0.47μF, Ta=25°C)
RP103x12xx RP103x25xx
043215
Input Voltage V
IN
(V)
Supply Current I
SS
(μA)
0
50
40
30
20
10
043215
Input Voltage VIN (V)
Supply Current ISS (μA)
0
50
40
30
20
10
RP103x33xx
043215
Input Voltage V
IN
(V)
Supply Current I
SS
(μA)
0
50
40
30
20
10
RP103x
NO.EA-149-131018
23
4) Output Voltage vs. Temperature (C1=0.47μF, C2=0.47μF, IOUT=1mA)
RP103x12xx RP103x25xx
1.15
1.25
1.21
1.20
1.23
1.22
1.24
1.16
1.17
1.18
1.19
-40 7550025-25 85
Temperature Topt (°C)
VIN=2.2V
Output Voltage VOUT (V)
2.45
2.55
2.51
2.50
2.53
2.52
2.54
2.46
2.47
2.48
2.49
-40 7550025-25 85
Temperature Topt (°C)
VIN=3.5V
Output Voltage VOUT (V)
RP103x33xx
3.25
3.35
3.31
3.30
3.33
3.32
3.34
3.26
3.27
3.28
3.29
-40 7550025-25 85
Temperature Topt (°C)
VIN=4.3V
Output Voltage VOUT (V)
5) Supply Current vs. Temperature (C1=0.47μF, C2=0.47μF, IOUT=0mA)
RP103x12xx RP103x25xx
30
40
38
32
34
36
-40 7550025-25 85
Temperature Topt (°C)
VIN=2.2V
Supply Current ISS (μA)
30
40
38
32
34
36
-40 7550025-25 85
Temperature Topt (°C)
VIN=3.5V
Supply Current ISS (μA)
Temperature Ta (°C) Temperature Ta (°C)
Temperature Ta (°C)
Temperature Ta (°C) Temperature Ta (°C)
RP103x
NO.EA-149-131018
24
RP103x33xx
30
40
38
32
34
36
-40 7550025-25 85
Temperature Topt (°C)
VIN=4.3V
Supply Current ISS (μA)
6) Dropout Voltage vs. Output Current (C1=0.47μF, C2=0.47μF)
RP103x12xx RP103x25xx
85°C
25°C
-
40°C
0
600
500
400
300
200
100
0 12060 9030 150
Output Current I
OUT
(mA)
Dropout Voltage V
DIF
(mV)
85°C
25°C
-
40°C
0
300
250
200
100
150
50
0 12060 9030 150
Output Current I
OUT
(mA)
Dropout Voltage V
DIF
(mV)
RP103x33xx
85°C
25°C
-
40°C
0
250
200
150
100
50
0 12060 9030 150
Output Current I
OUT
(mA)
Dropout Voltage V
DIF
(mV)
Temperature Ta (°C)
RP103x
NO.EA-149-131018
25
7) Dropout Voltage vs. Set Output Voltage (C1=0.47μF, C2=0.47μF, Ta=25°C)
10mA
30mA
50mA
150mA
0
600
400
500
300
200
100
1.0 3.53.02.51.5 2.0
Set Output Voltage VREG (V)
Dropout Voltage V
DIF
(mV)
8) Ripple Rejection vs. Input Bias Voltage (C1=0.47μF, C2=0.47μF, Ripple=0.2VP-P, Ta=25°C)
RP103x28xx RP103x28xx
1kHz
10kHz
100kHz
2.8 3.3 4.33.8 4.8 5.3
Input Voltage V
IN
(V)
0
80
10
40
30
20
60
50
70
90
Ripple Rejection RR (dB)
I
OUT
=1mA
1kHz
10kHz
100kHz
2.8 3.3 4.33.8 4.8 5.3
Input Voltage VIN (V)
0
80
10
40
30
20
60
50
70
90
Ripple Rejection RR (dB)
IOUT=30mA
9) Ripple Rejection vs. Frequency (C1=none, C2=0.47μF, Ripple=0.2VP-P)
RP103x12xx RP103x25xx
I
OUT
=1mA
I
OUT
=30mA
I
OUT
=150mA
0
20
40
60
120
100
80
V
IN
=2.2V
Frequency f (kHz)
Ripple Rejection RR (dB)
0.1 101 100 1000
I
OUT
=1mA
I
OUT
=30mA
I
OUT
=150mA
0
10
30
50
100
90
70
20
40
60
80
VIN=3.5V
Frequency f (kHz)
Ripple Rejection RR (dB)
0.1 101 100 1000
RP103x
NO.EA-149-131018
26
RP103x33xx
I
OUT
=1mA
I
OUT
=30mA
I
OUT
=150mA
0
20
40
60
120
100
80
0.1 101 100 1000
V
IN
=4.3V
Frequency f (kHz)
Ripple Rejection RR (dB)
10) Input Transient Response (IOUT=30mA, tr=tf=5μs, Ta=25°C)
RP103x12xx RP103x25xx
0 10040 6020 80
Output Voltage V
OUT
(V)
Output Voltage
Input Voltage
2
3
1.195
1.205
1.200
Input Voltage V
IN
(V)
4
Time t (μs)
0 10040 6020 80
Output Voltage V
OUT
(V)
Output Voltage
Input Voltage
3
4
2.495
2.505
2.500
Input Voltage V
IN
(V)
5
Time t (μs)
RP103x33xx
0 10040 6020 80
Output Voltage V
OUT
(V)
Output Voltage
Input Voltage
4
5
3.295
3.305
3.300
Input Voltage V
IN
(V)
6
Time t (μs)
RP103x
NO.EA-149-131018
27
11) Load Transient Response (C1=0.47μF, C2=0.47μF, Ta=25°C)
RP103x12xx RP103x25xx
100
0
50
0 10040 6020 80
Output Voltage VOUT (V)
Output Voltage
1.18
1.20
1.21
1.19
150
Time t (μs)
Output Current
Output Current IOUT (mA)
VIN=2.2V
tr=tf=0.5μs
50mA 100mA
100
0
50
0 10040 6020 80
Output Voltage VOUT (V)
Output Voltage
2.48
2.50
2.51
2.49
150
Time t (μs)
Output Current
Output Current IOUT (mA)
VIN=3.5V
tr=tf=0.5μs
50mA 100mA
RP103x33xx RP103x12xx
100
0
50
0 10040 6020 80
Output Voltage VOUT (V)
Output Voltage
3.28
3.30
3.31
3.29
150
Time t (μs)
Output Current
Output Current IOUT (mA)
VIN=4.3V
tr=tf=0.5μs
50mA 100mA
150
0
0 10040 6020 80
Output Voltage VOUT (V)
Output Voltage
1.10
1.20
1.21
1.15
300
Time t (μs)
Output Current
Output Current IOUT (mA)
VIN=2.2V
tr=tf=0.5μs
1mA 150mA
RP103x25xx RP103x33xx
150
0
0 10040 6020 80
Output Voltage VOUT (V)
Output Voltage
2.40
2.50
2.55
2.45
300
Time t (μs)
Output Current
Output Current IOUT (mA)
VIN=3.5V
tr=tf=0.5μs
1mA 150mA
150
0
0 10040 6020 80
Output Voltage VOUT (V)
Output Voltage
3.20
3.30
3.35
3.25
300
Time t (μs)
Output Current
Output Current IOUT (mA)
VIN=4.3V
tr=tf=0.5μs
1mA 150mA
RP103x
NO.EA-149-131018
28
12) Turn On Speed with CE pin (C1=0.47μF, C2=0.47μF, Ta=25°C)
RP103x12xx RP103x12xx
0
0.5
1.0
1.5
8020 40060
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage
1
0
2
3
Output Voltage V
OUT
(V)
I
OUT
=0mA
Time t (μs)
0
0.5
1.0
1.5
8020 40060
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage
1
0
2
3
Output Voltage V
OUT
(V)
I
OUT
=30mA
Time t (μs)
RP103x12xx RP103x25xx
0
0.5
1.0
1.5
8020 40060
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage
1
0
2
3
Output Voltage V
OUT
(V)
I
OUT
=150mA
Time t (μs)
0
1
2
3
8020 40060
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage
1
0
2
3
Output Voltage V
OUT
(V)
I
OUT
=0mA
Time t (μs)
RP103x25xx RP103x25xx
0
1
2
3
8020 40060
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage
1
0
2
3
Output Voltage V
OUT
(V)
I
OUT
=30mA
Time t (μs)
0
1
2
3
8020 40060
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage
1
0
2
3
Output Voltage V
OUT
(V)
IOUT=150mA
Time t (μs)
RP103x
NO.EA-149-131018
29
RP103x33xx RP103x33xx
0
1
2
3
4
8020 40060
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage 1
0
2
3
Output Voltage V
OUT
(V)
I
OUT
=0mA
Time t (μs)
0
1
2
3
4
8020 40060
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage 1
0
2
3
Output Voltage V
OUT
(V)
IOUT=30mA
Time t (μs)
RP103x33xx
0
1
2
3
4
8020 40060
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage 1
0
2
3
Output Voltage V
OUT
(V)
I
OUT
=150mA
Time t (μs)
13) Turn Off Speed with CE pin (D Version) (C1=0.47μF, C2=0.47μF, Ta=25°C)
RP103x12xD RP103x12xD
0
0.5
1.0
1.5
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage 1
0
2
3
Output Voltage V
OUT
(V)
I
OUT
=0mA
Time t (μs)
1800 60 14020 10080 16040 120
0
0.5
1.0
1.5
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage 1
0
2
3
Output Voltage V
OUT
(V)
IOUT=30mA
Time t (μs)
1800 60 14020 10080 16040 120
RP103x
NO.EA-149-131018
30
RP103x12xD RP103x25xD
0
0.5
1.0
1.5
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage 1
0
2
3
Output Voltage V
OUT
(V)
I
OUT
=150mA
Time t (μs)
1800 60 14020 10080 16040 120
0
1
2
3
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage
0
2
4
Output Voltage V
OUT
(V)
I
OUT
=0mA
Time t (μs)
1800 60 14020 10080 16040 120
RP103x25xD RP103x25xD
0
1
2
3
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage
0
2
4
Output Voltage V
OUT
(V)
I
OUT
=30mA
Time t (μs)
1800 60 14020 10080 16040 120
0
1
2
3
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage
0
2
4
Output Voltage V
OUT
(V)
IOUT=150mA
Time t (μs)
1800 60 14020 10080 16040 120
RP103x33xD RP103x33xD
0
1
2
4
3
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage
0
2
4
6
Output Voltage V
OUT
(V)
I
OUT
=0mA
Time t (μs)
1800 60 14020 10080 16040 120
0
1
2
4
3
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage
0
2
4
6
Output Voltage V
OUT
(V)
I
OUT
=30mA
Time t (μs)
1800 60 14020 10080 16040 120
RP103x
NO.EA-149-131018
31
RP103x33xD
0
1
2
4
3
CE Input Voltage V
CE
(V)
Output Voltage
CE Input Voltage
0
2
4
6
Output Voltage V
OUT
(V)
I
OUT
=150mA
Time t (μs)
1800 60 14020 10080 16040 120
14) Dropout Voltage vs. Temperature (C1=0.47μF, C2=0.47μF)
RP103x12xx RP103x25xx
0
450
150
50
250
350
200
300
400
100
-40 7550025-25 85
Temperature Topt (°C)
Dropout Voltage V
DIF
(mV)
150mA
100mA
50mA
0
200
60
20
100
140
80
120
180
160
40
-40 7550025-25 85
Temperature Topt (°C)
Dropout Voltage V
DIF
(mV)
150mA
100mA
50mA
RP103x30xx RP103x33xx
0
200
60
20
100
140
80
120
180
160
40
-40 7550025-25 85
Temperature Topt (°C)
Dropout Voltage V
DIF
(mV)
150mA
100mA
50mA
0
200
60
20
100
140
80
120
180
160
40
-40 7550025-25 85
Temperature Topt (°C)
Dropout Voltage V
DIF
(mV)
150mA
100mA
50mA
RP103x
NO.EA-149-131018
32
ESR vs. Output Current
Ceramic type output capacitor is recommended for this series; however, the other output capacitors with low
ESR also can be used. The relations between IOUT (Output Current) and ESR of an output capacitor are shown
below. The conditions when the white noise level is under 40μV (Avg.) are marked as the hatched area in the
graph.
Measurement conditions
Frequency Band : 10Hz to 2MHz
Temperature : −40°C to 85°C
RP103x12xx RP103x33xx
0 25 75 12550 100 150
Output Current IOUT (mA)
ESR (Ω)
VIN=1.7V to 5.0V
C1=C2=Ceramic 0.47μF
0.01
100
1
0.1
10
Topt=-40°C
Topt=85°C
0 25 75 12550 100 150
Output Current IOUT (mA)
0.01
100
1
0.1
10
ESR (Ω)
VIN=3.5V to 5.0V
C1=C2=Ceramic 0.47μF
Topt=-40°C
Topt=85°C
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11floor,Haesung1building,942,Daechidong,Gangnamgu,Seoul,Korea
Phone:+82-2-2135-5700Fax:+82-2-2135-5705
RICOHELECTRONICDEVICESSHANGHAICo.,Ltd.
Room403,No.2Building,690#BiBoRoad,PuDongNewdistrict,Shanghai201203,
People'sRepublicofChina
Phone:+86-21-5027-3200Fax:+86-21-5027-3299
RICOHCOMPANY,LTD.
ElectronicDevicesCompany
●Taipeioffice
Room109,10F-1,No.51,HengyangRd.,TaipeiCity,Taiwan(R.O.C.)
Phone:+886-2-2313-1621/1622Fax:+886-2-2313-1623
1.Theproductsandtheproductspecificationsdescribedinthisdocumentaresubjecttochangeor
discontinuationofproductionwithoutnoticeforreasons
suchasimprovement.Therefore,before
decidingtousetheproducts,pleaserefertoRicohsalesrepresentativesforthelatest
informationthereon.
2.Thematerialsinthisdocumentmaynotbecopiedorotherwisereproducedinwholeorinpart
withoutpriorwrittenconsentofRicoh.
3.Pleasebesuretotakeanynecessaryformalitiesunderrelevantlawsorregulationsbefore
exportingorotherwise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Ricoh'soranythirdparty'sintellectual
propertyrightsoranyotherrights.
5.
Theproductslistedinthisdocumentareintendedanddesignedforuseasgeneralelectronic
componentsinstandard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inhumaninjuryordeath(aircraft,spacevehicle,nuclearreactorcontrolsystem,
trafficcontrolsystem,automotiveand
transportationequipment,combustionequipment,safety
devices,lifesupportsystemetc.)shouldfirstcontactus.
6.Wearemakingourcontinuousefforttoimprovethequalityandreliabilityofourproducts,but
semiconductorproducts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,firecontainment
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.
7.Anti-radiationdesignisnotimplementedintheproductsdescribedinthisdocument.
8.
PleasecontactRicohsalesrepresentativesshouldyouhaveanyquestionsorcomments
concerningtheproductsorthetechnicalinformation.