RD5RW16 (RICOH)
ULTRA SMALL PACKAGE VOLTAGE REGULATOR

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Rx5RW SERIES
ULTRA SMALL PACKAGE VOLTAGE REGULATOR
NO.EA-048-111020
OUTLINE
The Rx5RW Series are CMOS-based voltage regulator ICs with high accuracy output voltage and ultra-low
supply current developed. Each of these ICs consists of a driver transistor, a voltage reference unit, an error
amplifier, resistors for setting output volt-age and a current limit circuit.
The output voltage of these ICs is fixed with high accuracy.
Even if VOUT is shorted to GND, the included current limit circuit protects the ICs from the destruction.
Furthermore, Rx5RWxxA/B have a chip enable function, so that the supply current on standby can be minimized.
Since the packages for these ICs are SC-82AB and SON1612-6, high density mounting of the ICs on boards
is possible.
FEATURES
Supply Current ............................................................. Typ. 1.5μA
(except pull-up/pull-down current for CE /CE pin)
Standby Current ........................................................... Typ. 0.1μA (applied to A/B version)
Dropout Voltage ........................................................... Typ. 40mV (IOUT=1mA, Rx5RW30A/B/C)
Temperature-Drift Coefficient of Output Voltage .......... Typ. ±100ppm/°C
Line Regulation ............................................................ Typ. 0.05%/V
Input Voltage Range .................................................... Max. 8.0V
Output Voltage Range.................................................. 1.5V to 6.0V (0.1V steps)
Output Voltage Accuracy..............................................±2.0%
Packages .....................................................................SC-82AB, SON1612-6
Built-in Current Limit Circuits
APPLICATIONS
Power source for battery-powered equipment.
Power source for cameras, VCRs, camcorders, hand-held audio instruments and hand-held communication
equipment.
Precision voltage references.
1


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Rx5RW
BLOCK DIAGRAMS
Rx5RWxxA
VDD
+
-
Vref Current Limit
CE
Rx5RWxxC
VDD
+
-
Vref Current Limit
NC
VOUT VDD
GND CE
VOUT
GND
Rx5RWxxB
+
-
Vref Current Limit
VOUT
GND
SELECTION GUIDE
The output voltage, chip enable polarity, and package, etc. for the ICs can be selected at the user’s request.
Product Name
Package
Quantity per Reel
Pb Free
Halogen Free
RD5RWxxA-TR-FE
SON1612-6
4,000 pcs
Yes
Yes
RQ5RWxxA-TR-FE
SC-82AB
3,000 pcs
Yes
xx: The output voltage can be designated in the range from 1.5V(15) to 6.0V(60) in 0.1V steps.
Yes
: CE pin polarity are options as follows.
(A) "L" active
(B) "H" active
(C) without chip enable
2


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PIN CONFIGURATION
z SC-82AB
43
(mark side)
12
z SON1612-6
654
(mark side)
1 23
Rx5RW
PIN DESCRIPTION
SC-82AB
Pin No
Symbol
1 GND
2 VDD
3 VOUT
4 CE or CE or NC
Pin Description
Ground Pin
Input Pin
Output Pin
Chip Enable Pin ("L" active/"H" active) or No Connection
SON1612-6
Pin No
1
2
3
4
5
6
Symbol
CE or CE or NC
VDD
VOUT
NC
VDD
GND
Pin Description
Chip Enable Pin ("L" active/"H" active) or No Connection
Input Pin
Output Pin
No Connection
Input Pin
Ground Pin
3


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Rx5RW
ABSOLUTE MAXIMUM RATINGS
Symbol
VIN
VCE
VOUT
IOUT
PD
Topt
Tstg
Item
Input Voltage
Input Voltage for CE /CE Pin (applied to A/B version)
Output Voltage
Output Current
Power Dissipation (SC-82AB)
Power Dissipation (SON1612-6)
Operating Temperature
Storage Temperature
) For Power Dissipation, please refer to PACKAGE INFORMATION.
Rating
9.0
0.3 to VIN +0.3
0.3 to VIN +0.3
150
380
500
40 to +85
55 to +125
Unit
V
V
V
mA
mW
°C
°C
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.
4


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Rx5RW
ELECTRICAL CHARACTERISTICS
Rx5RW30A
Symbol
VOUT
IOUT
ΔVOUT/ΔIOUT
VDIF
ISS
Istandby
ΔVOUT/ΔVIN
VIN
ΔVOUT/ΔTopt
ISC
RPU
VCEH
VCEL
Item
Output Voltage
Output Current
Load Regulation
Dropout Voltage
Supply Current
Standby Current
Line Regulation
Input Voltage
Output Voltage Temperature
Coefficient
Short Current Limit
Pull up resistance for CE pin
CE Input Voltage “H”
CE Input Voltage “L”
Conditions
VIN=5.0V
10μAIOUT10mA
VIN=5.0V
VIN=5.0V, 1mAIOUT50mA
IOUT=1mA
VIN=5.0V
VIN=5.0V, VCE=5.0V
IOUT=1mA
VOUT+0.5VVIN8V
IOUT=10mA
40°CTopt85°C
Min.
Typ.
Topt=25°C
Max. Unit
2.940 3.000 3.060 V
50 mA
40 60 mV
40 60 mV
1.5 3.0 μA
0.1 1.0 μA
0 0.05 0.20 %/V
8.0 V
±100
ppm/
°C
40 mA
1.5 4.0 12.0 MΩ
1.5 V
0.25 V
Rx5RW30B
Symbol
Item
VOUT
Output Voltage
IOUT Output Current
ΔVOUT/ΔIOUT Load Regulation
VDIF
ISS
Istandby
Dropout Voltage
Supply Current
Standby Current
ΔVOUT/ΔVIN Line Regulation
VIN
ΔVOUT/ΔTopt
ISC
RPD
VCEH
VCEL
Input Voltage
Output Voltage Temperature
Coefficient
Short Current Limit
Pull down resistance for CE
pin
CE Input Voltage “H”
CE Input Voltage “L”
Conditions
VIN=5.0V
10μAIOUT10mA
VIN=5.0V
VIN=5.0V
1mAIOUT50mA
IOUT=1mA
VIN=5.0V
VIN=5.0V, VCE=GND
IOUT=1mA
VOUT+0.5VVIN8V
IOUT=1mA
40°CTopt85°C
Min.
Typ.
Topt=25°C
Max. Unit
2.940 3.000 3.060 V
50 mA
40 60 mV
40 60 mV
1.5 3.0 μA
0.1 1.0 μA
0 0.05 0.20 %/V
8.0 V
±100
ppm/
°C
40 mA
1.5 4.0 12.0 MΩ
1.5 V
0.25 V
5


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Rx5RW
Rx5RW30C
Symbol
Item
VOUT
Output Voltage
IOUT Output Current
ΔVOUT/ΔIOUT Load Regulation
VDIF Dropout Voltage
ISS Supply Current
ΔVOUT/ΔVIN Line Regulation
VIN
ΔVOUT/ΔTopt
ISC
Input Voltage
Output Voltage Temperature
Coefficient
Short Current Limit
Conditions
VIN=5.0V
10μAIOUT10mA
VIN=5.0V
VIN=5.0V
1mAIOUT50mA
IOUT=1mA
VIN=5.0V
IOUT=1mA
3.5VVIN8.0V
IOUT=10mA
40°CTopt85°C
Min.
Tyo.
Topt=25°C
Max. Unit
2.940 3.000 3.060 V
50 mA
40 60 mV
40 60 mV
1.5 3.0 μA
0 0.05 0.20 %/V
8.0 V
±100
ppm/
°C
40 mA
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.
6


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Rx5RW
ELECTRICAL CHARACTERISTICS BY OUTPUT VOLTAGE
Part
Number
Rx5RW15
Rx5RW16
Rx5RW17
Rx5RW18
Rx5RW19
Rx5RW20
Rx5RW21
Rx5RW22
Rx5RW23
Rx5RW24
Rx5RW25
Rx5RW26
Rx5RW27
Rx5RW28
Rx5RW29
Rx5RW30
Rx5RW31
Rx5RW32
Rx5RW33
Rx5RW34
Rx5RW35
Rx5RW36
Rx5RW37
Rx5RW38
Rx5RW39
Rx5RW40
Rx5RW41
Rx5RW42
Rx5RW43
Rx5RW44
Rx5RW45
Rx5RW46
Rx5RW47
Rx5RW48
Rx5RW49
Rx5RW50
Rx5RW51
Rx5RW52
Rx5RW53
Rx5RW54
Rx5RW55
Rx5RW56
Rx5RW57
Rx5RW58
Rx5RW59
Rx5RW60
Output Voltage
VOUT (V)
Conditions
VIN-VOUT
=2.0V
10μAIOUT
10mA
Min.
1.470
1.568
1.666
1.764
1.862
1.960
2.058
2.156
2.254
2.352
2.450
2.548
2.646
2.744
2.842
2.940
3.038
3.136
3.234
3.332
3.430
3.528
3.626
3.724
3.822
3.920
4.018
4.116
4.214
4.312
4.410
4.508
4.606
4.704
4.802
4.900
4.998
5.096
5.194
5.292
5.390
5.488
5.586
5.684
5.782
5.880
Typ.
1.500
1.600
1.700
1.800
1.900
2.000
2.100
2.200
2.300
2.400
2.500
2.600
2.700
2.800
2.900
3.000
3.100
3.200
3.300
3.400
3.500
3.600
3.700
3.800
3.900
4.000
4.100
4.200
4.300
4.400
4.500
4.600
4.700
4.800
4.900
5.000
5.100
5.200
5.300
5.400
5.500
5.600
5.700
5.800
5.900
6.000
Max.
1.530
1.632
1.734
1.836
1.938
2.040
2.142
2.244
2.346
2.448
2.550
2.652
2.754
2.856
2.958
3.060
3.162
3.264
3.366
3.468
3.570
3.672
3.774
3.876
3.978
4.080
4.182
4.284
4.386
4.488
4.590
4.692
4.794
4.896
4.998
5.100
5.202
5.304
5.406
5.508
5.610
5.712
5.814
5.916
6.018
6.120
Output Current
IOUT (mA)
Conditions Min.
35
50
VIN-VOUT
=2.0V
65
80
Topt=25°C
Load Regulation
Dropout Voltage
ΔVOUT/ΔIOUT (mV)
VDIF (mV)
Conditions Typ. Max. Conditions Typ. Max.
120 200
90 135
VIN-VOUT
=2.0V
1mAIOUT
35mA
30
45
60 90
50 75
40 60
VIN-VOUT
=2.0V
1mAIOUT
50mA
40
35
60
IOUT=1mA 30
55
45
VIN-VOUT
=2.0V
1mAIOUT
65mA
50
70
VIN-VOUT
=2.0V
1mAIOUT
80mA
60
90
25 40
7


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Rx5RW
ELECTRICAL CHARACTERISTICS BY OUTPUT VOLTAGE
(common characteristics)
Symbol
Item
ISS Supply Current
Istandby Standby Current
ΔVOUT/ΔVIN Line Regulation
VIN
ΔVOUT/ΔTopt
ISC
RPU/RPD
VCEH
VCEL
Input Voltage
Output Voltage
Temperature Coefficient
Short Current Limit
CE Pull-up / CE Pull-down
Resistance
CE /CE Input Voltage "H"
CE /CE Input Voltage "L"
Conditions
VIN=Set VOUT+2.0
VIN=Set VOUT+2.0V
VCE=VIN (Rx5RWxxA),
VCE=GND (Rx5RWxxB)
IOUT=1mA
Set VOUT+0.5VVIN8V
IOUT=10mA
40°CTopt85°C
applied to A/B version
applied to A/B version
applied to A/B version
Min.
Typ.
1.5
0.1
0 0.05
±100
40
1.5 4.0
1.5
Topt=25°C
Max. Unit
3.0 μA
1.0 μA
0.20 %/V
8.0 V
ppm/
°C
mA
12.0 MΩ
0.25
V
V
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.
OPERATION
VDD 2
CE 4
Rx5RWxxB
-
+
Vref
Current Limit
3 VOUT
R1
R2
1 GND
In these ICs, output voltage VOUT is detected by Feedback Registers R1, R2, and the detected output voltage
is compare with a reference voltage by the error amplifier, so that a constant voltage is output.
A current limit circuit working for short protect, and a chip enable circuit are included.
8


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TEST CIRCUITS
Rx5RW
VIN C1
4 CE
Rx5RWxxB
3
VOUT
2 VDD GND
1
IOUT
C2
C1,C2=1μF
Standard Test Circuit
VIN2
4 CE
VOUT
Rx5RWxxB
3
A
VIN1
2 VDD GND
1
VIN1=VIN2
Supply Current Test Circuit
P.G.
VIN
4 CE
Rx5RWxxB
3
VOUT
2 VDD GND
1
IOUT
C2
VIN
C2=1μF
Ripple Rejection and Line
Transient Response Test Circuit
4 CE
Rx5RWxxB
3
VOUT
2 VDD GND
1 C2
C1
1mA
10mA
C1,C2=1μF
Load Transient Response Test Circuit
9


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Rx5RW
TYPICAL APPLICATION
VIN C1
4 CE
Rx5RWxxA
3
VOUT
2 VDD GND
1
IOUT
C2
VIN C1
4 CE
Rx5RWxxB
3
VOUT
2 VDD GND
1
IOUT
C2
4 NC
VOUT
Rx5RWxxC
3
IOUT
2 VDD GND
1
VIN C1
C2
In Rx5RW Series, a constant voltage can be obtained without using capacitors, C1 and C2. However, when
the wire connected VIN is long, use capacitor C1. Output noise can be reduced with using capacitor 2.
Insert capacitors C1 and C2 with the capacitance of 0.1μF to 2μF between input/output pins and GND pin with
minimum wiring.
10


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TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current
Rx5RW30B
Topt=25°C
3.0
8.0V
2.5
VIN=3.3V
2.0
1.5
5.0V
5.5V
1.0
0.5
0.0
0
20 40 60 80 100 120
Output Current IOUT(mA)
Rx5RW40B
4.0
3.5
VIN=4.3V
3.0
2.5
8.0V
Topt=25°C
6.0V
6.5V
2.0
1.5
1.0
0.5
0.0
0
40 80 120
Output Current IOUT(mA)
160
Rx5RW50B
5.0
4.0 VIN=5.3V
8.0V
Topt=25°C
7.0V
7.5V
3.0
2.0
1.0
0
0 40 80 120 160 200
Output Current IOUT(mA)
Rx5RW
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
Rx5RW30B
VIN=5.0V
Topt=85°C
25°C
-40°C
30 60 90 120
Output Current IOUT(mA)
150
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
Rx5RW40B
Topt=85°C
VIN=6.0V
25°C
-40°C
30 60 90 120 150 180
Output Current IOUT(mA)
5.0
4.0
3.0
2.0
1.0
0.0
0
Rx5RW50B
Topt=85°C
VIN=7.0V
25°C
-40°C
40 80 120 160
Output Current IOUT(mA)
200
11


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Rx5RW
2) Output Voltage vs. Input Voltage
Rx5RW30B
Topt=25°C
3.2
3.1
3.0
IOUT=1mA
2.9
2.8
2.7
5mA
10mA
2.8 2.9 3.0 3.1 3.2
Input Voltage VIN(V)
3.3
Rx5RW40B
Topt=25°C
4.2
4.1
4.0
3.9
3.8
3.7
IOUT=1mA
5mA
10mA
3.8 3.9 4.0 4.1 4.2
Input Voltage VIN(V)
4.3
Rx5RW50B
Topt=25°C
5.2
5.1
5.0
4.9
4.8
4.7
IOUT=1mA
5mA
10mA
4.8 4.9 5.0 5.1 5.2
Input Voltage VIN(V)
5.3
12
3.05
3.04
3.03
3.02
3.01
3.00
2.99
2.98
2.97
2.96
2.95
3
4.05
4.04
4.03
4.02
4.01
4.00
3.99
3.98
3.97
3.96
3.95
4
5.05
5.04
5.03
5.02
5.01
5.00
4.99
4.98
4.97
4.96
4.95
5
Rx5RW30B
Topt=25°C
IOUT=1mA
4567
Input Voltage VIN(V)
8
Rx5RW40B
Topt=25°C
IOUT=1mA
567
Input Voltage VIN(V)
8
Rx5RW50B
Topt=25°C
IOUT=1mA
67
Input Voltage VIN(V)
8


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3) Dropout Voltage vs. Output Current
Rx5RW30B
2.0
1.8
1.6
1.4 85°C
1.2
1.0
Topt=25°C
0.8
0.6
0.4 -40°C
0.2
0.0
0
10 20 30 40
Output Current IOUT(mA)
50
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
Rx5RW50B
85°C
Topt=25°C
-40°C
10 20 30 40
Output Current IOUT(mA)
50
4) Output Voltage vs. Temperature
Rx5RW30B
3.10
VIN=5.0V
IOUT=10mA
3.08
3.06
3.04
3.02
3.00
2.98
2.96
2.94
2.92
2.90
-50 -25 0 25 50 75 100
Temperature Topt(°C)
Rx5RW
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
Rx5RW40B
Topt=25°C
85°C
-40°C
10 20 30 40
Output Current IOUT(mA)
50
4.10
4.08
4.06
4.04
4.02
4.00
3.98
3.96
3.94
3.92
3.90
-50
Rx5RW40B
VIN=6.0V
IOUT=10mA
-25 0 25 50 75 100
Temperature Topt(°C)
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Rx5RW
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
-50
Rx5RW50B
VIN=7.0V
IOUT=10mA
-25 0 25 50 75 100
Temperature Topt(°C)
5) Supply Current vs. Input Voltage
Rx5RW30B
Topt=25°C
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
34 5678
Input Voltage VIN(V)
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
5
Rx5RW50B
Topt=25°C
67
Input Voltage VIN(V)
8
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
4
Rx5RW40B
Topt=25°C
567
Input Voltage VIN(V)
8
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6) Supply Current vs. Temperature
Rx5RW30B
VIN=5.0V
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
-50 -25 0 25 50 75 100
Temperature Topt(°C)
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
-50
Rx5RW50B
VIN=7.0V
-25 0 25 50 75 100
Temperature Topt(°C)
7) Dropout Voltage vs. Set Output Voltage
Rx5RWxxB
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
IOUT=10mA
5mA
1mA
1 2345
Set Output Voltage VREG(V)
6
Rx5RW
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
-50
Rx5RW40B
VIN=6.0V
-25 0 25 50 75 100
Temperature Topt(°C)
15


RD5RW16 (RICOH)
ULTRA SMALL PACKAGE VOLTAGE REGULATOR

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Rx5RW
8) Line Transient Response
Rx5RW30B
6.0 COUT=1.0μF,IOUT=1mA
5.5
Input Voltage
5.0
4.5
4.0
3.5
Output Voltage
3.0
2.5
0.0
1.0 2.0 3.0
Time T(ms)
4.0
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
0.0
Rx5RW40B
COUT=1.0μF,IOUT=1mA
Input Voltage
Output Voltage
1.0 2.0 3.0
Time T(ms)
4.0
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
0.0
Rx5RW50B
COUT=1.0μF,IOUT=1mA
Input Voltage
Output Voltage
1.0 2.0 3.0
Time T(ms)
4.0
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
0.0
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
0.0
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
0.0
Rx5RW30B
COUT=1.0μF,IOUT=10mA
Input Voltage
Output Voltage
1.0 2.0 3.0
Time T(ms)
4.0
Rx5RW40B
COUT=1.0μF,IOUT=10mA
Input Voltage
Output Voltage
1.0 2.0 3.0
Time T(ms)
4.0
Rx5RW50B
COUT=1.0μF,IOUT=10mA
Input Voltage
Output Voltage
1.0 2.0 3.0
Time T(ms)
4.0
16


RD5RW16 (RICOH)
ULTRA SMALL PACKAGE VOLTAGE REGULATOR

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9) Load Transient Response
5.0
4.5
4.0
3.5
3.0
2.5
2.0
0.0 0.5 1.0
Rx5RW30B
10mA
Output Current
1mA
COUT=Tantal 1.0μF
20
10
0
-10
Output Voltage
-20
-30
-40
-50
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Time T(ms)
Rx5RW40B
COUT=Tantal 1.0μF
6.0 20
10mA
5.5 10
Output Current
5.0 1mA
0
4.5
Output Voltage
-10
-20
4.0
-30
3.5 -40
3.0 -50
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Time T(ms)
Rx5RW50B
COUT=Tantal 1.0μF
7.0 20
10mA
6.5 10
Output Current
6.0 1mA
0
-10
5.5
Output Voltage
-20
5.0
-30
4.5 -40
4.0 -50
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Time T(ms)
Rx5RW
17


RD5RW16 (RICOH)
ULTRA SMALL PACKAGE VOLTAGE REGULATOR

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Rx5RW
10) Ripple Rejection
Rx5RW30B
VIN=5Vdc+0.5Vp-p
IOUT=10mA
80 COUT=1μF
70
60
50
40
30
20
10
0
0.1 1 10
Frequency f(kHZ)
100
80
70
60
50
40
30
20
10
0
0.1
Rx5RW50B
VIN=7Vdc+0.5Vp-p
IOUT=10mA
COUT=1μF
1 10
Frequency f(kHZ)
100
80
70
60
50
40
30
20
10
0
0.1
Rx5RW40B
VIN=6Vdc+0.5Vp-p
IOUT=10mA
COUT=1μF
1 10
Frequency f(kHZ)
100
18


RD5RW16 (RICOH)
ULTRA SMALL PACKAGE VOLTAGE REGULATOR

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Halogen Free
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.
http://www.e-devices.ricoh.co.jp/en/




RD5RW16.pdf
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