SPX3940U-2.5 Datasheet

IC型號：
SPX3940U-2.5
PDF描述：
1A Low Dropout Voltage Regulator Fixed Output, Fast Response
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11頁
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SPX3940

1A Low Dropout Voltage Regulator

Fixed Output, Fast Response

FEATURES

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1% Output Accuracy SPX3940A

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Guaranteed 1.5A Peak Current

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Low Quiescent Current

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Low Dropout Voltage of 280mV at 1A

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Extremely Tight Load and Line Regulation

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Extremely Fast Transient Response

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Reverse-battery Protection

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Internal Thermal Protection

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Internal Short Circuit Current Limit

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Replacement for LM3940

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Standard SOT-223, TO-220

and TO-263 packages

APPLICATIONS

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Powering VGA & Sound Card

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Automotive Electronics

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LCD Monitors

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Cordless Telephones

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Power PC

Supplies

SPX3940

3 Pin TO-263

GND

OUT

Now Available in Lead Free Packaging

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SMPS Post-Regulator

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Laptop, Palmtop, and Note-

book Computer

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High Efficiency Linear Power

Supplies

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Portable Instrumentation

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Constant Current Regulators

DESCRIPTION

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

dropout voltage and a fast transient response. They are fully fault protected against over-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

6.8碌F

SPX3940

10碌F

OUT

Figure 1. Fixed Output Linear Regulator.

Date: 5/25/04

SPX3940 1A Low Dropout Voltage Regulator

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