RT8283A 查看數據表（PDF） - Richtek Technology

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产品描述 (功能)

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RT8283A

3A, 23V, 340kHz Synchronous Step-Down Converter

Richtek Technology 

Function Block Diagram

RT8283A

VIN

Internal

Regulator

Oscillator

Shutdown

Comparator VA VCC

1.2V +

Foldback

Control

-

0.4V +

Lockout

5k

Comparator

EN

-

-

UV

Comparator

2.7V +

3V

VCC

6µA

0.8V +

SS

-+EA

Current Sense

Slope Comp Amplifier

+

VA

-

SQ

+

-

RQ

Current

Comparator

85mΩ

85mΩ

BOOT

SW

GND

FB

COMP

DS8283A-01 March 2011

www.richtek.com

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