R1230D341D 데이터 시트보기 (PDF) - RICOH Co.,Ltd.

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R1230D341D

PWM/VFM step-down DC/DC converter with Synchronous Rectifier

RICOH Co.,Ltd. 

s PIN DESCRIPTION

Pin No.

1

2

3

4

5

6

7

8

Symbol

VIN

PGND

VDD

CE

VOUT/VFB

MODE

AGND

Lx

Description

Voltage Supply Pin

Ground Pin

Voltage Supply Pin

Chip Enable Pin (active with “H”)

Output/Feedback Pin

Mode changer Pin (PWM mode at “L”, VFM mode at “H”.)

Ground Pin

Lx Pin

s ABSOLUTE MAXIMUM RATINGS

Symbol

VIN

VDD

VLX

VCE

VMODE

VFB

ILX

PD

Topt

Tstg

Item

VIN Supply Voltage

VDD Pin Voltage

Lx Pin Voltage

CE Pin Input Voltage

MODE Pin Input Voltage

VFB Pin Input Voltage

LX Pin Output Current

Power Dissipation

Operating Temperature Range

Storage Temperature Range

(AGND=PGND=0V)

Rating

Unit

6.5

V

6.5

V

-0.3∼VIN+0.3

V

-0.3∼VIN+0.3

V

-0.3∼VIN+0.3

V

-0.3∼VIN+0.3

V

-0.8

A

250

mW

-40∼+85

°C

-55∼+125

°C

Rev. 1.12

-4-

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