Datasheet > LT1121IS8#TRMPBF

LT1121IS8#TRMPBF

更新时间： 2024-11-22 20:02:47

品牌	Logo	应用领域
亚德诺 - ADI		光电二极管输出元件调节器
页数	文件大小	规格书
16页	167K
描述
Adjustable Positive LDO Regulator

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中文翻译

获取价格

数据手册

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LT1121IS8#TRMPBF 数据手册

LT1121/LT1121-3.3/LT1121-5

Micropower Low Dropout

Regulators with Shutdown

FEATURES

DESCRIPTION

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

dropout regulators with shutdown. These devices are ca-

pableofsupplying150mAofoutputcurrentwithadropout

voltage of 0.4V. Designed for use in battery-powered sys-

tems, thelowquiescentcurrent, 30μAoperatingand16μA

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

OtherfeaturesoftheLT1121/LT1121-3.3/LT1121-5include

theabilitytooperatewithverysmalloutputcapacitors.They

are stable with only 0.33μF on the output while most older

devices require between 1μF and 100μF for stability. Small

ceramic capacitors can be used, enhancing manufactur-

ability. 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

inputisatgroundorreversed.Undertheseconditionsonly

16μA will ﬂow from the output pin to ground.

Stable with 0.33μF Output Capacitor

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

APPLICATIONS

Low Current Regulator

Regulator for Battery-Powered Systems

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

All other trademarks are the property of their respective owners.

Post Regulator for Switching Supplies

TYPICAL APPLICATION

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

1121ff

12 3 4 5 6 7...16

中文翻译

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与LT1121IS8#TRMPBF相关器件

型号	品牌	获取价格	描述	数据表
LT1121IS8#TRPBF	Linear	获取价格	LT1121 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperatur
LT1121IS8-3.3	Linear	获取价格	Micropower Low Dropout Regulators with Shutdown
LT1121IS8-3.3#PBF	Linear	获取价格	LT1121 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperatur
LT1121IS8-3.3#TRPBF	Linear	获取价格	LT1121 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperatur
LT1121IS8-5	Linear	获取价格	Micropower Low Dropout Regulators with Shutdown
LT1121IS8-5#PBF	Linear	获取价格	LT1121 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperatur
LT1121IS8-5#TR	Linear	获取价格	LT1121 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperatur
LT1121IS8-5#TRPBF	Linear	获取价格	LT1121 - Micropower Low Dropout Regulators with Shutdown; Package: SO; Pins: 8; Temperatur
LT1121IST	Linear	获取价格	IC VREG FIXED POSITIVE LDO REGULATOR, 0.55 V DROPOUT, PDSO4, SOT-223, 4 PIN, Fixed Positiv
LT1121IST-3.3	Linear	获取价格	Micropower Low Dropout Regulators with Shutdown

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