SPX1521M3-3.3 参数 Datasheet PDF下载

®

SPX1521

300mA Low Dropout Voltage Regulator

FEATURES

■

1% Output Accuracy 3.3V, 5V,

at 300mA Output

■

Very Low Quiescent Current

■

0.3V (Typ.) Dropout Voltage at 300mA

■

Extremely Tight Load and Line Regulation

■

Current & Thermal Limiting

■

Reverse Battery Protection

■

Equivalent Replacement For LT1521

SPX1521

3 Pin TO-263

1

2

3

V

OUT

GND V

IN

Now Available in Lead Free Packaging

DESCRIPTION

The SPX1521 is a low power voltage regulator. This device is an excellent choice for use in battery-powered

applications such as cordless telephones, radio control systems, and portable computers. The SPX1521

features very low quiescent current and very low dropout voltage. This includes a tight initial tolerance of

±1%

max, and very low output temperature coefficient, making the SPX1521 useful as a low-power voltage

reference.

The SPX1521 is offered in 3 pin TO-252, SOT-223, TO-220 & TO-263 packages.

TYPICAL APPLICATIONS CIRCUIT

V

OUT

I

IN

IN

OUT

5V

I

L

SPX1521

0.1µF

+

GND

+

2.2µF

LOAD

I

IN

= I

L

+ I

G

I

G

Date: 5/25/04

SPX1521 300mA Low Dropout Voltage Regulator

©Copyright 2004 Sipex Corporation

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