RN5RT Просмотр технического описания (PDF) - RICOH Co.,Ltd.

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RN5RT

LOW DROPOUT VOLTAGE REGULATOR

RICOH Co.,Ltd. 

RN5RT

OPERATION

VDD 2

3 VOUT

R1

+

–

R2

Current Limit

Vref

1 GND

5

CE

In these ICs, Output Voltage VOUT is detected by Feed-back Registers R1, R2, and the detected Output Voltage is

compared with a reference voltage by Error Amplifier, so that a constant voltage is output.

A current limit circuit working for Short Protect and a chip enable circuit for standby function are included.

TEST CIRCUITS

2 VDD

VOUT 3

IOUT

VIN C1

5 CE

GND

1

C2

C1, C2=1µF

Fig.1 Standard Test Circuit

2 VDD

VOUT 3

IOUT

VIN P.G.

5 CE

GND

1

C1

C1=1µF

Fig.3 Line Transient Response Test Circuit

ISS→

C1

A

2 VDD

VOUT 3

5 CE

GND

1

C1=1µF

Fig.2 Supply Current Test Circuit

10

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