LT1121AIS8#PBF

更新时间： 2024-11-22 13:09:31

品牌	Logo	应用领域
凌特 - Linear		稳压器
页数	文件大小	规格书
16页	173K
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LT1121AIS8#PBF 数据手册

LT1121/LT1121-3.3/LT1121-5

Micropower Low Dropout

Regulators with Shutdown

FEATURES

DESCRIPTIO

The LT^®1121/LT1121-3.3/LT1121-5 are micropower low

dropout regulators with shutdown. These devices are

capable of supplying 150mA of output current with a

dropout voltage of 0.4V. Designed for use in battery-

powered systems, the low quiescent current, 30μA oper-

ating and 16μA in shutdown, makes them an ideal choice.

The quiescent current is well-controlled; it does not rise in

dropout as it does with many other low dropout PNP

regulators.

■

0.4V Dropout Voltage

■

150mA Output Current

■

30μA Quiescent Current

No Protection Diodes Needed

■

Adjustable Output from 3.75V to 30V

■

3.3V and 5V Fixed Output Voltages

■

Controlled Quiescent Current in Dropout

■

Shutdown

■

16μA Quiescent Current in Shutdown

■

Stable with 0.33μF Output Capacitor

Other features of the LT1121/LT1121-3.3/LT1121-5 in-

clude the ability to operate with very small output capaci-

tors. They are stable with only 0.33μF on the output while

most older devices require between 1μF and 100μF for

stability.Smallceramiccapacitorscanbeused,enhancing

manufacturability. Also the input may be connected to

ground or a reverse voltage without reverse current flow

from output to input. This makes the LT1121 series ideal

for backup power situations where the output is held high

and the input is at ground or reversed. Under these

conditions only 16μA will flow from the output pin to

ground.

■

Reverse Battery Protection

■

No Reverse Current with Input Low

■

Thermal Limiting

■

Available in the 8-Lead SO, 8-Lead PDIP, 3-Lead

SOT-23 and 3-Lead TO-92 Packages

APPLICATIO S

■

Low Current Regulator

■

Regulator for Battery-Powered Systems

■

Post Regulator for Switching Supplies

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

TYPICAL APPLICATIO

5V Battery-Powered Supply with Shutdown

Dropout Voltage

0.5

3.3V

OUT

LT1121-3.3

150mA

0.4

0.3

0.2

0.1

1μF

SOLID TANTALUM

SHDN

GND

(PIN 5) OUTPUT

SHDN

<0.25

>2.8

OFF

LT1121 • TA01

OUTPUT CURRENT (mA)

20 40 60

100 120 140 160

LT1121 • TA02

1121fe

12 3 4 5 6 7...16

中文翻译

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与LT1121AIS8#PBF相关器件

型号	品牌	获取价格	描述	数据表
LT1121AIS8-3.3	Linear	获取价格	Micropower Low Dropout Regulators with Shutdown
LT1121AIS8-3.3#TR	Linear	获取价格	LT1121 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperatur
LT1121AIS8-5	Linear	获取价格	Micropower Low Dropout Regulators with Shutdown
LT1121AIS8-5#PBF	Linear	获取价格	LT1121 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperatur
LT1121AIS8-5#TR	Linear	获取价格	暂无描述
LT1121AIS8-5#TRPBF	Linear	获取价格	LT1121 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperatur
LT1121CJ8-5	ETC	获取价格	Positive Fixed Voltage Regulator
LT1121CN8	Linear	获取价格	Micropower Low Dropout Regulators with Shutdown
LT1121CN8#TRPBF	Linear	获取价格	Adjustable Positive LDO Regulator, 3.8V Min, 30V Max, 0.7V Dropout, PDIP8
LT1121CN8-3.3	Linear	获取价格	Micropower Low Dropout Regulators with Shutdown

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