VOLTAGE REGULATOR WITH
EXTERNAL POWER TRANSISTOR
NO. EA-020-130521
RN5RG SERIES
OUTLINE
The RN5RG Series are CMOS-based voltage regulator ICs with an external power transistor with high output
voltage accuracy and lowest supply current. Each of these voltage regulator ICs consists of a voltage reference
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 is 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 (IOUT=100mA : dependent on External Tr.)
...................
• Low Temperature-Drift Coefficient of Output Voltage
................................
Typ. 100 ppmꢀ/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).
2.5%
........................
• High Accuracy Output Voltage
..................................................
• 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.
EXT
BLOCK DIAGRAM
VDD
VOUT
4
2
3
+
–
Vref
GND
1
5
CE
1