ST763ACN Datasheet

IC型號(hào)：
ST763ACN
PDF描述：
3.3V STEP DOWN CURRENT MODE PWM DC-DC CONVERTERS
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254.70KB
PDF頁(yè)數(shù)：
10頁(yè)
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

標(biāo)準(zhǔn)包裝
2,000
類(lèi)別
集成電路 (IC)
家庭
PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器
系列
-
類(lèi)型
降壓（降壓）
輸出類(lèi)型
可調(diào)式
輸出數(shù)
1
輸出電壓
3.14 V ~ 3.47 V
輸入電壓
3.3 V ~ 11 V
PWM 型
電流模式
頻率 - 開(kāi)關(guān)
200kHz
電流 - 輸出
500mA
同步整流器
無(wú)
工作溫度
-40°C ~ 85°C
安裝類(lèi)型
通孔
封裝/外殼
8-DIP（0.300"，7.62mm）
包裝
管件
供應(yīng)商設(shè)備封裝
8-DIP

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型號(hào)

版本

描述

廠商

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