FAC1591 datasheet(1/12 Pages) FS

部品番号	FAC1591

部品情報	2A 380KHZ 32V PWM Buck DC/DC Converter

PDF	12 Pages

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メーカー	FS [First Silicon Co., Ltd]

ホームページ	http://www.firstsilicon.co.kr/

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General Description

The FAC1591 is a 380 KHz fixed frequency

monolithic step down switch mode regulator

with a built in internal Power MOSFET. It

achieves 2A continuous output current over a

wide input supply range with excellent load

and line regulation.

The device includes a voltage reference,

oscillation circuit, error amplifier, internal

PMOS and etc.

The PWM control circuit is able to adjust the

duty ratio linearly from 0 to 100%. An enable

function, an over current protection function

and a short circuit protection function are

built inside. An internal compensation block

is built in to minimize external component

count.

The FAC1591 serves asideal power supply

units for portable devices.

Features

2A Constant Output Current

140m

Ω R

DSON Internal Power PMOSFET

Switch

Up to 95% Efficiency

Fixed 380KHz Frequency

Wide 3.6V to 32V Input Voltage Range

Output Adjustable from 1.222V to 30V

Built in Frequency Compensation

Built in Thermal Shutdown Function

Built in Current Limit Function

SOIC-8 Package is Available

The minimum dropout up to 0.3V

Applications

Portable DVD

LCD Monitor / TV

Battery Charger

ADSL Modem

Telecom / Networking Equipment

Figure 1 Package Type of FAC1591

SEMICONDUCTOR

TECHNICAL D ATA

FAC1591

2008.01. 28

1/12

Revision No : 0

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