R1122N Datasheet, PDF (6/22 Pages) RICOH electronics devices division – LOW NOISE 150mA LDO REGULATOR

n OPERATION
R1122XX1A
3
VDD
CE
4
Vref
Current Limit
1
VOUT
3
VDD
R1
R2 _GND
CE
2
4
R1122XX1B
Vref
Current Limit
1
VOUT
R1
R2 _GND
2
In these ICs, fluctuation of Output Voltage, VOUT is detected by Feed-back Registers, R1 and R2, and the result is compared
with a reference voltage by Error Amplifier, so that a constant voltage is output.
A current limit circuit for protection at short mode, and a chip enable circuit are included.
Rev. 1.10
-6-