Datasheet > LT3021

LT3021

更新时间： 2024-11-08 14:57:19

品牌	Logo	应用领域
亚德诺 - ADI		稳压器
页数	文件大小	规格书
18页	318K
描述
500mA、低电压、非常低压差线性稳压器

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中文翻译

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数据手册

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LT3021 数据手册

LT3021/LT3021-1.2/

LT3021-1.5/LT3021-1.8

500mA, Low Voltage,

Very Low Dropout

Linear Regulator

FEATURES

DESCRIPTION

The LT^®3021 is a very low dropout voltage (VLDO™) lin-

ear regulator that operates from input supplies down to

0.9V. This device supplies 500mA of output current with

a typical dropout voltage of 155mV. The LT3021 is ideal

for low input voltage to low output voltage applications,

providing comparable electrical efﬁciency to that of a

switching regulator.

V Range: 0.9V to 10V

Dropout Voltage: 155mV Typical

Output Current: 500mA

Adjustable Output (V

= V

= 200mV)

OUT(MIN)

REF

Fixed Output Voltages: 1.2V, 1.5V, 1.8V

Stable with Low ESR, Ceramic Output Capacitors

(3.3µF Minimum)

0.2% Load Regulation from 1mA to 500mA

Quiescent Current: 110µA (Typ)

3µA Typical Quiescent Current in Shutdown

Current Limit Protection

The LT3021 regulator optimizes stability and transient

responsewithlowESR,ceramicoutputcapacitorsassmall

as 3.3µF. Other LT3021 features include 0.05% typical line

regulation and 0.2% typical load regulation. In shutdown,

quiescent current typically drops to 3µA.

Reverse-Battery Protection

No Reverse Current

Internal protection circuitry includes reverse-battery pro-

tection, current limiting, thermal limiting with hysteresis,

and reverse-current protection. The LT3021 is available as

an adjustable output device with an output range down to

the 200mV reference. Three ﬁxed output voltages, 1.2V,

1.5V and 1.8V, are also available.

Thermal Limiting with Hysteresis

16-Pin DFN (5mm × 5mm) and 8-Lead

SO Packages

APPLICATIONS

Low Current Regulators

The LT3021 regulator is available in the low proﬁle

(0.75mm) 16-pin (5mm × 5mm) DFN package with ex-

posed pad and the 8-lead SO package.

Battery-Powered Systems

Cellular Phones

Pagers

All registered trademarks and trademarks are the property of their respective owners.

Wireless Modems

TYPICAL APPLICATION

Minimum Input Voltage

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1.8V to 1.5V, 500mA VLDO Regulator

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Rev.D

For more information www.analog.com

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与LT3021相关器件

型号	品牌	获取价格	描述	数据表
LT3021_15	Linear	获取价格	500mA, Low Voltage, Very Low Dropout Linear Regulator
LT3021-1.2	Linear	获取价格	500mA, Low Voltage, Very Low Dropout Linear Regulator
LT3021-1.2_15	Linear	获取价格	500mA, Low Voltage, Very Low Dropout Linear Regulator
LT3021-1.5	Linear	获取价格	500mA, Low Voltage, Very Low Dropout Linear Regulator
LT3021-1.5_15	Linear	获取价格	500mA, Low Voltage, Very Low Dropout Linear Regulator
LT3021-1.8	Linear	获取价格	500mA, Low Voltage, Very Low Dropout Linear Regulator
LT3021-1.8_15	Linear	获取价格	500mA, Low Voltage, Very Low Dropout Linear Regulator
LT3021EDH	Linear	获取价格	500mA, Low Voltage, Very Low Dropout Linear Regulator
LT3021EDH#PBF	Linear	获取价格	LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Reg
LT3021EDH#TRPBF	Linear	获取价格	LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Reg

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