VOLTAGE REGULATOR WITH
EXTERNAL POWER TRANSISTOR
RN5RG SERIES
OUTLINE
The RN5RG Series are voltage regulator ICs with an external power transistor with high output voltage accu-
racy and lowest supply current by CMOS process. Each of these voltage regulator ICs consists of a voltage refer-
ence unit, an error amplifier and resistors.
These ICs are suitable for constructing regulators with ultra-low dropout voltage and an output current in the
range of several tens mA to several hundreds mA.
Furthermore, these ICs have a chip enable function, so that the supply current on standby can be minimized.
Since the package for these ICs are SOT-23-5 (Mini-mold) package, high density mounting of the ICs
on boards is possible.
FEATURES
• Ultra-Low Supply Current ..............................TYP. 50µA
• Standby Mode.....................................................TYP. 0.2µA
• Ultra-Low Dropout Voltage .............................TYP. 0.1V (I
OUT
=100mA : dependent on External Tr.)
• Low Temperature-Drift Coefficient of Output Voltage ...................TYP. ±100 ppm/˚C
• Excellent Line Regulation ................................TYP. 0.1%/V
• Output Voltage .................................................Stepwise setting with a step of 0.1V in the range of 2.0V to 6.0V is
possible (refer to Selection Guide).
• High Accuracy Output Voltage ........................±2.5%
• Small Package ..................................................SOT-23-5(Mini-Mold)
APPLICATIONS
• Power source for battery-powered equipment.
• Power source for cameras, VCRs, camcorders, hand-held audio instruments, and hand-held communication
equipment.
• Power source for domestic appliances.
BLOCK DIAGRAM
V
DD
2
4
EXT
V
OUT
3
+
–
Vref
GND
1
CE
5
1
RICOH [ RICOH ELECTRONICS DEVICES DIVISION ]
