UNISONIC TECHNOLOGIES CO., LTD

LC1111

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LINEAR INTEGRATED CIRCUIT

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Copyright © 2015 Unisonic Technologies Co., Ltd

QW-R102-072.a

LOW DROPOUT LINEAR

REGULATOR CONTROLLER



DESCRIPTION

The UTC LC1111 is a low dropout linear regulator controller for

applications requiring high-current and ultra low dropout voltages.

The use of an external N-Channel MOSFET and provide an

adjustable output by using an external resistive divider.

An extremely accurate 0.8V (±2%) reference allows the

implementation of sub 1 V voltage supplies. The reference is

guaranteed over the complete supply and temperature ranges.

The UTC LC1111 integrates various functions. For example, a

prevent wrong operations; the function of Under-Voltage

Protection (UVP) protects the device from short circuit condition.

The soft-start of output voltage is adjustable by the external

capacitor on SS pin. Moreover, the UTC LC1111 can be enabled

by other power system; namely, holding the EN above 1.6V

enables output and pulling the EN under 0.4 disables output.



FEATURES

* 4.5V~13.5V supply voltage range

* 0.8V (±2%) voltage reference (temperature and process)

* Fast transient response

* Programmable soft-start

* Enable control function

* Low shutdown current

* Under-Voltage protection

SOT-26

4

5

3

2

1

6

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ORDERING INFORMATION

Ordering Number

Package

Packing

LC1111G-AG6-R

SOT-26

Tape Reel