UNISONIC TECHNOLOGIES CO., LTD

L1127

Preliminary

CMOS IC

www.unisonic.com.tw

1 of 5

Copyright © 2012 Unisonic Technologies Co., Ltd

QW-R502-742.a

ULTRA-LOW-NOISE,

HIGH-SPEED, LOW-DROPOUT,

300mA LINEAR REGULATOR

DESCRIPTION

As a low dropout linear regulator, the UTC L1127 only needs low input

voltage (2.5~6V), and can deliver current to 300mA for setting the output

voltage.

The UTC L1127 is ideal for being used in such battery-powered

equipments notebook, personal computer and mother board. Its typical

dropout voltage is 200mV at loading current 300mA.

L1127

has 1.0V, 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V, 4.2V, 4.75V, 5.2V

fixed voltage versions and 0.8V to 5.5V adjustable voltage versions.

To protect itself against current over-loads and over temperature, the

L1127

has short current limit and thermal shutdown functions.

FEATURES

* Operating Voltage: 2.5V~6V

* Low Voltage Dropout

* Output Current Guaranteed 300mA

* For Setting Output Voltage Two Modes

-

Fixed mode : 1.0V,1.2V,1.5V,1.8V,2.5V,3.0V,3.3V,4.2V,4.75V,5.2V

-

ADJ mode: Adjustable Output Voltage 0.8V~5.5V

* Internal Current Limit Protection

* With Soft-Start

* Internal Thermal Protection

* Work Stably with Low ESR Ceramics Capacitor

ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

L1127L-xx-AF5-R

L1127G-xx-AF5-R

SOT-25

Tape Reel

Note: xx: Output Voltage, refer to Marking Information.

L1127L-xx-AF5-R

(1)Packing Type

(2)Package Type

(3)Output Voltage Code

(1) R: Tape Reel

(2) AF5: SOT-25

(3) xx: Refer to Marking Information

(4) G: Halogen Free, L: Lead Free

(4)Lead Free