2

RT4532

www.richtek.com

DS4532-00 May 2015

©

Copyright 2015 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Functional Pin Description

Pin Configurations

(TOP VIEW)

Pin No.

Pin Name

Pin Function

A1

LX

Switch Node of Boost Converter. Connect an inductor between LX and VIN.

A2

GND

Ground. The exposed pad must be soldered to a large PCB and connected to

GND for maximum thermal dissipation.

B1

VOUT

Power Output of the Asynchronous Boost Converter for Backlight LEDs. Connect

a 1

B2

VIN

Power Input. Connect this pin to the input power supply voltage. Connect a 10

F

or larger ceramic capacitor from the VIN to ground.

C1

PWM

PWM Dimming Input for Backlight LED.

C2

EN

Enable Control Input (Active High). The chip is in shutdown mode when the EN

pin is low.

D1

SDA

I

D2

SCL

I

E1

FB2

Single Output 2 for Backlight LED.

E2

FB1

Single Output 1 for Backlight LED.

FB1

FB2

SCL

SDA

EN

PWM

VIN

VOUT

LX

GND

E2

E1

D2

D1

C2

C1

B2

B1

A1

A2

WL-CSP-10B 0.87x2.07(BSC)

Marking Information

2KW

2K : Product Code

W : Date Code