L1085S3-3.3 Datasheet

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NIKO-SEM

3A Fixed Low Dropout

Linear Regulator (LDO)

FEATURES

L1085-3.3

TO-252,263,220

GENERAL DESCRIPTION

The L1085 is a positive and low dropout

three-terminal voltage regulator with 3A out-

put current capability. This device is design-

ed for use in low voltage applications that

offers lower dropout voltage and faster tran-

sient response.

This device is fully protected against over

current faults, over temperature operation,

reversed input polarity, reversed lead insert-

ion, transient voltage spike 鈥tc.

On-Chips trimming the reference voltage to

1% and features the low dropout of maxi-

mum 1.50 volts.

The L1085 Series regulators are available

in the popular industry standard TO-263

TO-220 and TO-252 packages.

Very easy to use, it requires only two

external resistors to set the output voltage

Low dropout voltage:

1.3V typical at up to 3A

Low ground current

Fast transient response

Current & thermal limiting

Line regulation: 0.5% typical

Load regulation: 0.5% typical

TO-263, TO-220 and TO-252 packages

APPLICATIONS

High current microprocessor supplies

Low voltage logic supply

Powering VGA & sound card

Portable instrumentation

Constant current regulator

Post regulator for switching power supply

TYPICAL APPLICATION

Vin>4.75V

IN

OUT

Vout=3.3V

L1085-3.3

Cin

10uF

10uF

GND

Cout

RL

Basic Fixed Output Regulator Circuit

1

JUL-05-2001

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