Datasheet > RT8239BZQW

RT8239BZQW

更新时间： 2022-05-14 22:20:20

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
24页	385K
描述
High Efficiency, Main Power Supply Controller for Notebook Computers

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数据手册

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RT8239BZQW 数据手册

RT8239A/B/C

Pin No.

Pin Name

Pin Function

Upper Gate Driver Output for SMPS1. UGATE1 swings between PHASE1 and

BOOT1.

UGATE1

Boost Flying Capacitor Connection for SMPS1. Connect to an external

capacitor according to the typical application circuits.

BOOT1

BYP1

Switch Over Source Voltage Input for LDO5.

Analog Ground and Power Ground. The exposed pad must be soldered to a

large PCB and connected to GND for maximum power dissipation.

21 (Exposed Pad) GND

Function Block Diagram

BOOT1

BOOT2

UGATE1

UGATE2

PHASE2

LDO5

PHASE1

LDO5

SMPS1

PWM

Buck

SMPS2

PWM

Buck

LGATE1

LGATE2

Controller

LDO5

10µA

LDO5

10µA

FB2

FB1

ENTRIP2

ENTRIP1

On Time

ENM (RT8239A)

TON

SECFB (RT8239B/C)

Switch Over Threshold

BYP1

LDO5

PGOOD

GND

LDO3

REF

LDO5

Power-On

Sequence

Clear Fault Latch

VIN

ENLDO

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS8239A/B/C-06 October 2012

1...3 4 567 8 9...24

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