RT9224EC View Datasheet(PDF) - Richtek Technology

Part Name

Description

Manufacturer

RT9224EC

VRM 8.5 Synchronous PWM Buck Converter Controller and Output Voltage Monitor

Richtek Technology 

Function Block Diagram

Preliminary

VSEN

OCSET

VID0

VID1

VID2

VID3

VID25

FB

VCC

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

RT9224E

PGOOD

10uA

OVP

SS

BOOT

UGATE

PHASE

LGATE

PGND

GND

DS9224E-02 March 2004

www.richtek.com

3

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