RQ5RW Просмотр технического описания (PDF) - RICOH Co.,Ltd.

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производитель

RQ5RW

SMALL PACKAGE VOLTAGE REGULATOR

RICOH Co.,Ltd. 

RQ5RW

ELECTRICAL CHARACTERISTICS BY OUTPUT VOLTAGE

(common characteristics)

Topt=25˚C

Symbol

Item

Conditions

MIN. TYP. MAX. Unit

ISS

Supply Current

VIN=setVOUT+2.0V

1.5

3.0

µA

Istandby Standby Current

VIN=setVOUT+2.0V

VCE=VIN(RQ5RW××A),

VCE=GND(RQ5RW××B)

0.1

1.0

µA

∆VOUT

∆VIN

Line Regulation

IOUT=1mA

setVOUT+0.5V≤ VIN≤ 8V

0

0.05 0.20 %/V

VIN

Input Voltage

8.0

V

∆VOUT

∆Topt

Output Voltage

Temperature Coefficient

IOUT=10mA

–40˚C≤ Topt≤ 85˚C

±100

ppm/˚C

Ilim

Short Current Limit

40

mA

RPU/RPD CE Pull-up / CE Pull-down Resistance

1.5

4.0 12.0 MΩ

VCEH CE/CE Input Voltage “H”

1.5

V

VCEL CE/CE Input Voltage “L”

0.25

V

OPERATION

RQ5RW××A

RQ5RW××B

VDD 2

CE 4

–

Error Amp. +

Vref

Current Limit

3 VOUT VDD 2

R1

R2

1 GND CE 4

–

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 compare

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 are included.

7

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