R1121N View Datasheet(PDF) - RICOH Co.,Ltd.

Part Name

Description

Manufacturer

R1121N

LOW NOISE 150mA LDO REGULATOR

RICOH Co.,Ltd. 

s OPERATION

R1121NXX1A

R1121NXX1B

3

VDD

CE

4

Vref

Current Limit

1

VOUT

3

VDD

R1

R2 GND

CE

2

4

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.1.11

-5-

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