ST763ABD Datasheet

IC型號：
ST763ABD
PDF描述：
3.3V STEP DOWN CURRENT MODE PWM DC-DC CONVERTERS
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254.66KB
PDF頁數(shù)：
10頁
芯片廠家：
STMICROELECTRONICS

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ST763A

SERIES

3.3V STEP DOWN

CURRENT MODE PWM DC-DC CONVERTERS

OUTPUT VOLTAGE 3.3V

SUPPLY VOLTAGE RANGE FROM 3.3V TO

11V

GUARANTEED OUTPUT CURRENT: 500mA

TYPICAL OPERATION FREQUENCY:

200KHz

VERY LOW QUIESCENT CURRENT: 0.6mA

ON MODE 0.2碌A(chǔ) OFF MODE

SWITCH ON/OFF CONTROL

TYPICAL EFFICENCY: 90%

OPERATING TEMPERATURE RANGE:

-40擄C TO 85擄C

AVAILABLE IN SO-8 AND DIP-8 PACKAGES

DIP-8

SO-8

DESCRIPTION

The ST763A is a step-down switching regulator . It

operates from 3.3V to 11V giving a fixed 3.3V

output voltage, delivering up to 500mA. The

mainly features are typical efficiency of 90%,

quiescent current of 0.6mA, and only 0.2碌A(chǔ) in

shut-down.

The PWM current mode control provides precise

output regulation and very good transient

response. Output voltage accuracy is guaranteed

to be

鹵5%

over line, load and temperature

variations. A minimum number of external

components is used and the fixed frequency

switching allows easy filtering of output ripple and

noise.

Other features of this ddevice are cycle-by-clicle

current limiting, overcurrent limiting, under voltage

lockout and programmable soft-start protection.

A 22碌H inductor works in most applications, so no

sophisticated design is necessary.

Package available are SO-8 and DIP-8.

Typical application are in 5V to 3.3V converters,

cellular phones, portable instruments, hand-held

computers, and peripherals.

SCHEMATIC DIAGRAM

November 2000

1/10

制造商
STMicroelectronics
產(chǎn)品種類
開關(guān)變換器、穩(wěn)壓器與控制器
輸出電壓
3.3 V
安裝風格
SMD/SMT
封裝 / 箱體
SO-8
封裝
Tube
工廠包裝數(shù)量
100

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型號

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描述

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