RN5RZ Просмотр технического описания (PDF) - RICOH Co.,Ltd.

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RN5RZ

LOW DROP-OUT AND LOW NOISE VOLTAGE REGULATOR

RICOH Co.,Ltd. 

RN5RZ

OPERATION

RN5RZ××A

VDD 2

CE 5

–

Error Amp. +

Vref

Current Limit

RN5RZ××B

3 VOUT VDD 2

R1

R2

1 GND CE 5

–

Error Amp. +

Vref

Current Limit

3 VOUT

R1

R2

1 GND

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 an 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

VIN C1

2 VDD VOUT 3

RN5RZ SERIES

5 CE

GND

1

IOUT

C2

C1 : 1µF

C2 : 10µF

Fig.1 Standard Test Circuit

A

VIN C1

2 VDD VOUT 3

RN5RZ SERIES

5 CE GND

C2

1

C1 : 1µF

C2 : 10µF

Fig.2 Supply Current Test Circuit

P.G.

VIN

2 VDD VOUT 3

RN5RZ SERIES

5 CE

GND

1

IOUT

C1

C1 : 10µF

Fig.3 Line Transient Response Test Circuit

6

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