R1111N Datasheet, PDF (5/16 Pages) RICOH electronics devices division – LOW NOISE 150mA LDO REGULATOR

s OPERATION
R1111NXX1A
R1111NXX1B
1
VDD
CE
3
Vref
Current Limit
5
VOUT
1
VDD
R1
R2 _GND
CE
2
3
Vref
Current Limit
5
VOUT
R1
R2 _GND
2
In these ICs, fluctuation of Output Voltage, VOUT is detected by Feed-back Registers R1, 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.1.11
-5-