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SPX3940AM3-3.3/

更新时间： 2024-11-01 04:03:07

品牌	Logo	应用领域
西伯斯 - SIPEX		稳压器
页数	文件大小	规格书
11页	204K
描述
1A Low Dropout Voltage Regulator Fixed Output, Fast Response

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数据手册

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SPX3940AM3-3.3/ 数据手册

SPX3940

1A Low Dropout Voltage Regulator

Fixed Output, Fast Response

FEATURES

■ 1% Output Accuracy SPX3940A

■ Guaranteed 1.5A Peak Current

■ Low Quiescent Current

■ Low Dropout Voltage of 280mV at 1A

■ Extremely Tight Load and Line Regulation

■ Extremely Fast Transient Response

■ Reverse-battery Protection

SPX3940

3 Pin TO-263

V_OUT

V_IN

GND

Now Available in Lead Free Packaging

■ Internal Thermal Protection

■ Internal Short Circuit Current Limit

■ Replacement for LM3940

■ Standard SOT-223, TO-220

and TO-263 packages

■ SMPS Post-Regulator

APPLICATIONS

■ Laptop, Palmtop, and Note-

■ Powering VGA & Sound Card

■ Automotive Electronics

■ LCD Monitors

book Computer

■ High Efficiency Linear Power

Supplies

■ Portable Instrumentation

■ Constant Current Regulators

DESCRIPTION

■ Cordless Telephones

■ Power PC^TMSupplies

The SPX3940 is a 1A, accurate voltage regulators with a low drop out voltage of 280mV(typical)

at 1A. These regulators are specifically designed for low voltage applications that require a low

dropoutvoltageandafasttransientresponse. Theyarefullyfaultprotectedagainstover-current,

reverse battery, and positive and negative voltage transients.

The SPX3940 is offered in 3-pin SOT-223, TO-220 & TO-263 packages. For a 3A version, refer

to the SPX29300 data sheet.

TYPICAL APPLICATIONS CIRCUIT

SPX3940

V_OUT

10µF

6.8µF

Figure 1. Fixed Output Linear Regulator.

Date: 5/25/04

SPX3940 1A Low Dropout Voltage Regulator

12 3 4 5 6 7...11

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