Datasheet > LT3021-1.2_15

LT3021-1.2_15

更新时间： 2024-01-23 01:27:38

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
16页	195K
描述
500mA, Low Voltage, Very Low Dropout Linear Regulator

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LT3021-1.2_15 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 160mV. 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: 160mV Typical

Output Current: 500mA

Adjustable Output (V

= V

= 200mV)

REF

OUT(MIN)

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

Stable with Low ESR, Ceramic Output Capacitors

(3.3μF Minimum)

0.2% Load Regulation from 0mA to 500mA

Quiescent Current: 120μA (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.

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

a trademark of Linear Technology Corporation. All other trademarks are the property of their

respective owners.

Battery-Powered Systems

Cellular Phones

Pagers

Wireless Modems

TYPICAL APPLICATION

Minimum Input Voltage

1.1

= 500mA

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

1.8V to 1.5V, 500mA VLDO Regulator

OUT

LT3021-1.5

1.5V

1.8V

500mA

3.3μF

SHDN SENSE

GND

3021 TA01

–50 –25

75 100 125

TEMPERATURE (°C)

3021 TA02

3021fc

12 3 4 5 6 7...16

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与LT3021-1.2_15相关器件

型号	品牌	获取价格	描述	数据表
LT3021-1.5	Linear	获取价格	500mA, Low Voltage, Very Low Dropout Linear Regulator
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LT3021-1.8	Linear	获取价格	500mA, Low Voltage, Very Low Dropout Linear Regulator
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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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