Datasheet > LT1085

LT1085

更新时间： 2024-11-24 14:58:07

品牌	Logo	应用领域
亚德诺 - ADI		稳压器
页数	文件大小	规格书
22页	286K
描述
3A 低压差正可调稳压器

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LT1085 数据手册

LT1083/LT1084/LT1085

7.5A, 5A, 3A Low Dropout

Positive Adjustable Regulators

FeaTures

DescripTion

The LT^®1083 series of positive adjustable regulators are

designedtoprovide7.5A, 5Aand3Awithhigherefficiency

than currently available devices. All internal circuitry is

3-Terminal Adjustable

Output Current of 3A, 5A or 7.5A

Operates Down to 1V Dropout

Guaranteed Dropout Voltage at Multiple Current Levels

Line Regulation: 0.015%

designedtooperatedownto1Vinput-to-outputdifferential

and the dropout voltage is fully specified as a function of

load current. Dropout is guaranteed at a maximum of 1.5V

at maximum output current, decreasing at lower load cur-

rents. On-chip trimming adjusts the reference voltage to

1%. Current limit is also trimmed, minimizing the stress

on both the regulator and power source circuitry under

overload conditions.

Load Regulation: 0.1%

100% Thermal Limit Functional Test

Fixed Versions Available

Available in 3-Lead Plastic TO-220 and DD Packages

applicaTions

The LT1083/LT1084/LT1085 devices are pin compatible

with older 3-terminal regulators. A 10µF output capacitor

isrequiredonthesenewdevices.However,thisisincluded

in most regulator designs.

High Efﬁciency Linear Regulators

Post Regulators for Switching Supplies

Constant Current Regulators

Battery Chargers

Unlike PNP regulators, where up to 10% of the output cur-

rent is wasted as quiescent current, the LT1083 quiescent

current flows into the load, increasing efficiency.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

UltraFast and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks

are the property of their respective owners.

DEVICE

OUTPUT CURRENT*

LT1083

LT1084

LT1085

7.5A

5.0A

3.0A

*For a 1.5A low dropout regulator see the LT1086 data sheet.

Typical applicaTion

Dropout Voltage vs Output Current

5V, 7.5A Regulator

LT1083

ADJ

5V AT 7.5A

OUT

≥ 6.5V

121Ω

10µF

10µF*

TANTALUM

365Ω

*REQUIRED FOR STABILITY

1083/4/5 ADJ TA01

FULL LOAD

OUTPUT CURRENT

1083/4/5 ADJ TA02

108345fh

For more information www.linear.com/LT1083

12 3 4 5 6 7...22

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