RT9224CPS Ver la hoja de datos (PDF) - Richtek Technology

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RT9224CPS

VRM 9.0 Synchronous PWM Buck Converter Controller and Output Voltage Monitor

Richtek Technology 

Function Block Diagram

Preliminary

VCC

VSEN

OCSET

VID0

VID1

VID2

VID3

VID4

FB

Reference

TTL D/A

Converter

(DAC)

110%

+

90%

-

Power-On

Reset (POR)

115%

200uA

+

-

Over Voltage

+

-

+

- Over Current

4.5V

Soft

Start

DACOUT

+

Error Amplifier -

Inhibit

PWM

Comparator

+

Gate

Control

Logic

-

PWM

Oscillator

RT9224C

PGOOD

10uA

OVP

SS

BOOT

UGATE

PHASE

LGATE

PGND

GND

DS9224C-02 March 2004

www.richtek.com

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