Datasheet > RT8075ZQW

RT8075ZQW

更新时间： 2024-11-12 22:59:07

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
11页	170K
描述
IC REG BCK ADJ 1A DL SYNC 10WDFN

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中文翻译

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数据手册

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RT8075ZQW 数据手册

RT8075

Dual 1A, 1.25MHz Synchronous Step-Down Converter

General Description

Features

z 2.5V to 5.5V Input Range

The RT8075 is a high efficiency Pulse-Width-Modulated

(PWM) dual step-down DC/DC converter. Capable of

delivering up to 1A output current over a wide input voltage

range from 2.5V to 5.5V, the RT8075 is ideally suited for

portable electronic devices that are powered from 1-cell

Li-ion battery or from other power sources such as cellular

phones, PDAs, PC WLAN card and hand-held devices.

z 1A Output Current

z 1.25MHz Fixed Frequency PWM Operation

z 95% Efficiency

z No Schottky Diode Required

z 0.6V Reference Allows Low Output Voltage

z Low Dropout Operation : 100% Duty Cycle

z Small 10-Lead WDFN Package

z RoHS Compliant and Halogen Free

Three operating modes are available including : PWM

mode, Low Dropout Mode and shut-down mode. The

Internal synchronous rectifier with low R_DS(ON)dramatically

reduces conduction loss at PWM mode. No external

Schottky diode is required in practical application. The

RT8075 enters Low Dropout mode when normal PWM

cannot provide regulated output voltage by continuously

turning on the upper P-MOSFET. The RT8075 enters shut-

down mode and consumes less than 0.1μAwhen the EN

pin is pulled low.

Applications

z Portable Instruments

z Microprocessors and DSP Core Supplies

z Cellular Phones

z Wireless and DSL Modems

z PC Cards

Ordering Information

RT8075

The switching ripple is easily smoothed-out by small

package filtering elements due to the fixed operating

frequency of 1.25MHz. The RT8075 is available in the

WDFN-10L 3x3 package.

Package Type

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

Lead Plating System

G : Green (Halogen Free and Pb Free)

Z : ECO (Ecological Element with

Halogen Free and Pb free)

Pin Configurations

(TOP VIEW)

Note :

LX1

EN1

FB1

VIN2

GND

LX2

Richtek products are :

GND

VIN1

FB2

EN2

` 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.

WDFN-10L 3x3

Marking Information

RT8075GQW

RT8075ZQW

38= : Product Code

38 : Product Code

YMDNN : Date Code

38=YM

YMDNN : Date Code

38 YM

DNN

DS8075-04 April 2011

www.richtek.com

12 3 4 5 6 7...11

中文翻译

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