Datasheet > RT8089A

RT8089A

更新时间： 2024-11-12 12:25:07

品牌	Logo	应用领域
立锜 - RICHTEK		转换器
页数	文件大小	规格书
15页	210K
描述
3A, 1MHz, Synchronous Step-Down Converter

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RT8089A 数据手册

RT8089A

3A, 1MHz, Synchronous Step-Down Converter

General Description

Features

^zHigh Efficiency : Up to 95%

The RT8089A is a high efficiency synchronous, step-down

DC/DC converter. Its input voltage ranges from 2.7V to

5.5V that provides an adjustable regulated output voltage

from 0.6V to V_INwhile delivering up to 3A of output current.

The internal synchronous low On-resistance power

switches increase efficiency and eliminate the need for

an external Schottky diode. The switching frequency is

fixed internally at 1MHz. The 100% duty cycle provides

low dropout operation, hence extending battery life in

portable systems. Current mode operation with internal

compensation allows the transient response to be

optimized over a wide range of loads and output capacitors.

The RT8089Ais available in a WDFN-10L 3x3 package.

^zHigh Efficiency at Light Load

^zLow R_DS(ON)Power Switches : 69mΩ/49mΩ

^zFixed Frequency : 1MHz

^zNo Schottky Diode Required

^zInternal Compensation

^z0.6V Reference Allows Low Output Voltage

^zLow Dropout Operation : 100% Duty Cycle

^zOCP, UVP, OTP

^zRoHS Compliant and Halogen Free

Applications

z Portable Instruments

z Battery Powered Equipment

z Notebook Computers

z Distributed Power Systems

z IP Phones

Ordering Information

RT8089A

Package Type

QW : WDFN-10L 3x3 (W-Type)

z Digital Cameras

Lead Plating System

G : Green (Halogen Free and Pb Free)

Marking Information

Note :

2X= : Product Code

Richtek products are :

YMDNN : Date Code

2X=YM

` 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.

DNN

Simplified Application Circuit

RT8089A

VIN

OUT

VCC

Chip Enable

PGOOD

GND

is a registered trademark of Richtek Technology Corporation.

DS8089A-01 March 2013

www.richtek.com

12 3 4 5 6 7...15

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