LT1129IQ-3.3#PBF

更新时间： 2024-11-23 13:09:35

品牌	Logo	应用领域
凌特 - Linear		线性稳压器IC 调节器电源电路输出元件
页数	文件大小	规格书
12页	277K
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中文翻译

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数据手册
替代型号

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LT1129IQ-3.3#PBF 数据手册

LT1129/LT1129-3.3/LT1129-5

Micropower Low Dropout

Regulators with Shutdown

DESCRIPTIO

EATURE

■

The LT1129/LT1129-3.3/LT1129-5 are micropower low

dropout regulators with shutdown. The devices are ca-

pable of supplying 700mA of output current with a drop-

out voltage of 0.4V at maximum output. Designed for use

in battery-powered systems the low quiescent current,

50µA operating and 16µA in shutdown, make them

an ideal choice. The quiescent current does not rise

in dropout as it does with many other low dropout

PNP regulators.

0.4V Dropout Voltage

700mA Output Current

50µA Quiescent Current

No Protection Diodes Needed

Adjustable Output from 3.8V to 30V

3.3V and 5V Fixed Output Voltages

Controlled Quiescent Current in Dropout

Shutdown

16µA Quiescent Current in Shutdown

Stable with 3.3µF Output Capacitor

Reverse Battery Protection

No Reverse Output Current

Thermal Limiting

Other features of the LT1129 /LT1129-3.3/LT1129-5 in-

clude the ability to operate with small output capacitors.

They are stable with only 3.3µF on the output while most

older devices require between 10µF and 100µF for stabil-

ity.Alsotheinputmaybeconnectedtogroundorareverse

voltage without reverse current flow from output to input.

This makes the LT1129/LT1129-3.3/LT1129-5 ideal for

backuppowersituationswheretheoutputisheldhighand

theinputisatgroundorreversed. Undertheseconditions,

only 16µA will flow from the output pin to ground. The

devices are available in 5-lead TO-220, 5-lead DD, and

3-lead SOT-223 packages.

Surface Mount

O U

PPLICATI

■

Low Current Regulator

Regulator for Battery-Powered Systems

Post Regulator for Switching Supplies

5V to 3.3V Logic Regulator

TYPICAL APPLICATI

5V Supply with Shutdown

Dropout Voltage

0.6

5V OUT

500mA

0.5

0.4

0.3

OUT

LT1129-5

SENSE

GND

3.3µF

SOLID TANTALUM

> 5.5V

SHDN

0.2

0.1

(PIN 4) OUTPUT

SHDN

< 0.25

> 2.8

OFF

LT1129 • TA01

0.4

OUTPUT CURRENT (A)

0.6 0.7

0.1

0.2 0.3

0.5

LT1129 • TA02

12 3 4 5 6 7...12

中文翻译

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LT1129IQ-3.3#PBF 替代型号

型号	品牌	替代类型	描述	数据表
LT1129IQ-3.3#TRPBF	Linear	类似代替	LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: DD PAK; Pins: 5; Temper
LT1129CST-3.3	Linear	功能相似	Micropower Low Dropout Regulators with Shutdown
LT1129IST-3.3	Linear	功能相似	Micropower Low Dropout Regulators with Shutdown

与LT1129IQ-3.3#PBF相关器件

型号	品牌	获取价格	描述	数据表
LT1129IQ-3.3#TR	Linear	获取价格	暂无描述
LT1129IQ-3.3#TRPBF	Linear	获取价格	LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: DD PAK; Pins: 5; Temper
LT1129IQ-5	Linear Systems	获取价格	Micropower Low Dropout Regulators with Shutdown
LT1129IQ-5	Linear	获取价格	Micropower Low Dropout Regulators with Shutdown
LT1129IQ-5#PBF	Linear	获取价格	LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: DD PAK; Pins: 5; Temper
LT1129IQ-5#TR	Linear	获取价格	LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: DD PAK; Pins: 5; Temper
LT1129IQ-5#TRPBF	Linear	获取价格	LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: DD PAK; Pins: 5; Temper
LT1129IS8	Linear Systems	获取价格	Micropower Low Dropout Regulators with Shutdown
LT1129IS8	Linear	获取价格	Micropower Low Dropout Regulators with Shutdown
LT1129IS8#PBF	Linear	获取价格	LT1129 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperatur

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