Datasheet > APW7079-28DI-TRG

APW7079-28DI-TRG

更新时间： 2024-10-14 06:37:31

品牌	Logo	应用领域
茂达 - ANPEC		转换器
页数	文件大小	规格书
15页	284K
描述
Low-Supply-Current Synchronous Step-up DC-DC Converter

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APW7079-28DI-TRG 数据手册

APW7079

Low-Supply-Current Synchronous Step-up DC-DC Converter

General Description

Features

The APW7079 is a compact, PFM mode, and step-up

DC-DC converter with low quiescent current. The inter-

0.9V Typical Start-up Input Voltage

11mA Typical No Load Quiescent Current

nal synchronous rectifier reduces cost and PCB space

by eliminating the need for an external Schottky diode.

Low on-resistance of the internal switches improves the

efficiency up to 92%. The start-up voltage is guaranteed

below 1V. After start-up, the device can operate with input

voltage down to 0.7V. The APW7079 is suitable for por-

table battery-powered applications. Consuming only 11mA

quiescent current and an optimized control scheme al-

lows the device to operate at very high efficiency over the

entire load current range.

PFM Operation

High Efficiencyup to 92%

Fixed 1.8V, 2.6V, 2.8V, 3V, 3.3V, 3.8V, 4.5V or 5V

Output Voltage

600mA Internal Switch Current

Internal Synchronous Rectifier

SOT-89 Package

Lead Free and Green Devices Available

(RoHS Compliant)

Efficiency vs. Output Current

100

Applications

Toy

V_IN=0.9V

Wireless Mouse

Portable Instrument

V_IN=1.0V

V_IN=2.4V

V_IN=1.2V

V_IN=1.5V

Pin Configuration

APW7079-30

100 1000

SOT89

0.1

OutputCurrent, I (m A)

OUT

Simplified Application Circuit

APW 7079

LX VOUT

GND

V_IN

I_IN

I_OUTV_OUT

Top View

22mH

22mF

47mF

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and

advise customers to obtain the latest version of relevant information to verify before placing orders.

www.anpec.com.tw

Rev. A.3 - Oct., 2008

12 3 4 5 6 7...15

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