Datasheet > LM1085ISX-3.3

LM1085ISX-3.3

更新时间： 2024-11-22 22:33:39

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器调节器输出元件
页数	文件大小	规格书
13页	742K
描述
3A Low Dropout Positive Regulators

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LM1085ISX-3.3 数据手册

June 2005

LM1085

3A Low Dropout Positive Regulators

General Description

Features

n Available in 3.3V, 5.0V, 12V and Adjustable Versions

n Current Limiting and Thermal Protection

n Output Current

The LM1085 is a series of low dropout positive voltage

regulators with a maximum dropout of 1.5V at 3A of load

current. It has the same pin-out as National Semiconductor’s

industry standard LM317.

n Line Regulation

n Load Regulation

0.015% (typical)

0.1% (typical)

The LM1085 is available in an adjustable version, which can

set the output voltage with only two external resistors. It is

also available in three fixed voltages: 3.3V, 5.0V and 12.0V.

The fixed versions integrate the adjust resistors.

Applications

n High Efficiency Linear Regulators

n Battery Charger

The LM1085 circuit includes a zener trimmed bandgap ref-

erence, current limiting and thermal shutdown.

n Post Regulation for Switching Supplies

n Constant Current Regulator

n Microprocessor Supply

The LM1085 series is available in TO-220 and TO-263 pack-

ages. Refer to the LM1084 for the 5A version, and the

LM1086 for the 1.5A version.

Connection Diagrams

Application Circuit

TO-220

10094702

Top View

TO-263

10094752

1.2V to 15V Adjustable Regulator

10094704

Top View

Basic Functional Diagram,

Adjustable Version

10094765

DS100947

www.national.com

12 3 4 5 6 7...13

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LM1085ISX-3.3 替代型号

型号	品牌	替代类型	描述	数据表
LM1085IS-3.3	NSC	完全替代	3A Low Dropout Positive Regulators
LMS1587CSX-3.3/NOPB	TI	功能相似	3A、13V 线性稳压器 \| KTT \| 3 \| 0 to 125

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