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SPX3940T-L-3-3TR

更新时间： 2024-09-30 12:15:11

品牌	Logo	应用领域
艾科嘉 - EXAR		稳压器
页数	文件大小	规格书
11页	1364K
描述
1A Low Dropout Voltage Regulator

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SPX3940T-L-3-3TR 数据手册

SPX3940

1A Low Dropout Voltage Regulator

February 2012

Rev. 1.0.0

GENERAL DESCRIPTION

APPLICATIONS

The SPX3940 is a 1A, accurate voltage

regulator with a low drop out voltage of

280mV (typical) at 1A.

ñ Power Supplies

ñ LCD Monitors

ñ Portable Instrumentation

ñ Medical and Industrial Equipments

These regulators are specifically designed for

low voltage applications that require a low

dropout voltage and a fast transient response.

They are fully fault protected against over-

current, reverse battery, and positive and

negative voltage transients.

FEATURES

ñ Guaranteed 1.5A Peak Current

ñ 1% Output Accuracy SPX3940A

ñ Low Quiescent Current

The SPX3940 is offered in 3-pin SOT223 and

TO-263 packages. For a 3A version, refer to

the SPX29300 data sheet.

ñ Low Dropout Voltage of 280mV at 1A

ñ Extremely Tight Load and Line

Regulation

ñ Extremely Fast Transient Response

ñ Reverse-battery Protection

ñ Internal Thermal Protection

ñ Internal Short Circuit Current Limit

ñ Replacement for LM3940

ñ Standard SOT223 & TO-263 packages

TYPICAL APPLICATION DIAGRAM

Fig. 1: SPX3940 Application Diagram – Fixed Output Linear Regulator

Exar Corporation

48720 Kato Road, Fremont CA 94538, USA

www.exar.com

Tel. +1 510 668-7000 – Fax. +1 510 668-7001

12 3 4 5 6 7...11

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