RT9222CS 데이터 시트보기 (PDF) - Richtek Technology

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RT9222CS

Programmable Synchronous PWM Buck Converter with Dual Adjustable Low Dropout Linear Regulator Controller

Richtek Technology 

Function Block Diagram

RT9222

VCC CSNCSP

SHDN

VID4

VID3

VID2

VID1

VID0

VSEN

PGOOD

1.25V REF

CURRENT LIMIT

70mV

DAC

OSCILLATOR

R

Q

S

OPEN

DRAIN +_

200KHz

LEVEL SHIFT

AND DRIVER

SHOOT-

THROUGH

CONTROL

VCC _

_

OVP

ERROR AMP

DRIVER

LDOS1

GATE1

GND

LINEAR

CONTROLLER

2.5V

1.265V

REF

LINEAR

CONTROLLER

1.5V

BSTH

DH

PGNDH

BSTL

DL

PGNDL

LDOV

GATE2 LDOS2 GND

DS9222-04 May 2001

www.richtek-ic.com.tw

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