RT8120 查看數據表（PDF） - Richtek Technology

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RT8120

Single-Phase Synchronous Buck PWM Controller

Richtek Technology 

Function Block Diagram

FB

COMP/EN

POR

Internal

Regulator

VREF

Error

Amp

+

-

SS

Soft-Start/

Fault Logic

PWM

+

-

ramp

fault

Gate

Control

Oscillator

+

-

Sample

/Hold

VCC

IOCSET

Figuer 1. RT8120A/B Function Block Diagram

RT8120

VCC

BOOT

UGATE

PHASE

LGATE/

OCSET

GND

POR

Internal

Regulator

FB

COMP/EN

VREF

Error

Amp

+

-

PWM

+

-

Gate

Control

VCC

SS

Soft-Start/

Fault Logic

ramp

fault

PHASE

VIN Detection Oscillator

+

-

Sample

/Hold

IOCSET

Figuer 2. RT8120C/D Function Block Diagram

VCC

BOOT

UGATE

PHASE

LGATE/

OCSET

GND

Copyright ©2013 Richtek Technology Corporation. All rights reserved.

DS8120-08 September 2013

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

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