L1089-3.3 데이터 시트보기 (PDF) - Niko Semiconductor

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L1089-3.3

0.3A Fixed Low Dropout Linear Regulator (LDO)

Niko Semiconductor 

NIKO-SEM

0.3A Fixed Low Dropout

Linear Regulator (LDO)

L1089-3.3

SOT-89

GENERAL DESCRIPTION

The L1089 Series are positive and low

dropout three-terminal voltage regulators

with 0.3A output current capability. These

devices are designed for use in low voltage

applications that offers lower dropout volt-

age and faster transient response.

These devices are fully protected against

over current faults, over temperature oper-

ation, reversed input polarity, reversed lead

insertion, transient voltage spike …etc.

On-Chips trimming the reference voltage to

2% and features the low dropout of maxi-

mum 1.35 volts.

FEATURES

z Fixed 3.3V output voltage

z Low dropout voltage

z Low ground current

z Fast transient response

z Current & thermal limiting

z Line regulation: 0.5% typical

z Load regulation: 0.5% typical

z Available in SOT-89 package

APPLICATIONS

z Low voltage micro-controllers

z Battery Chargers

z 5V to 3.3V linear regulators

z Motherboard clock supplies

z Post regulator for switching supplies

TYPICAL APPLICATION

Vin > 4.75V

IN

L1089-3.3

OUT

Vout = 3.3V

Cin

+

10uF

GND

Cout

+

RL

10uF

1. Cin needed if device is far from filter capacitors

2. Cout required for stability.

- Fixed Voltage Regulator -

1

JUL-11-2001

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