RT8525D

®

DS8525D-00 June 2012

www.richtek.com

1

Copyright 2012 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

©

Ordering Information

Note :

Richtek products are :

RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

Suitable for use in SnPb or Pb-free soldering processes.

Current Mode Boost Controller

Pin Configurations

WDFN-12L 3x3

(TOP VIEW)

Marking Information

General Description

The RT8525D is a wide input operating voltage range step

up controller. High voltage output and large output current

are feasible by using an externalN-MOSFET. The RT8525D

input operating range is from 4.5V to 25V.

The RT8525Dis an optimized design for wide output voltage

range applications. The output voltage of the RT8525D can

be adjusted by the FB pin.

Features

VIN Range : 4.5V to 25V

Programmable Soft-Start Time

Programmable Boost SW Frequency from 50kHz to

600kHz

Output Over Voltage Protection

Output Under Voltage Protection

12-Lead WDFN Package

RoHS Compliant and Halogen Free

Applications

LCD TV, Monitor Display Backlight

LEDDriver Application

High Current High Output Voltage DC/DC Converters

High Input Voltage DC/DC Converters

Package Type

QW : WDFN-12L 3x3 (W-Type)

RT8525D

Lead Plating System

G : Green (Halogen Free and Pb Free)

VDC

VIN

FSW

SS

EN

DRV

GND

OVP

ISW

COMP

FAULT

FB

11

10

9

1

2

3

4

5

12

67

8

13

Simplified Application Circuit

M1

D1

L1

DRV

ISW

GND

OVP

FAULT

RT8525D

VIN

VDC

EN

Chip Enable

FSW

SS

COMP

FB

12V

0F=YM

DNN

0F= : Product Code

YMDNN : Date Code