UNISONIC TECHNOLOGIES CO., LTD

L5109

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CMOS IC

www.unisonic.com.tw

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Copyright © 2015 Unisonic Technologies Co., Ltd

QW-R125-038.a

WHITE LED STEP-UP

CONVERTER

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DESCRIPTION

The UTC L5109 is an inductor-based DC/DC converter

designed to drive up to six white LEDs in series or 2 rows of

LEDs with 5 for each in parallel for backlight. Only one feedback

resistor is needed to control the LED current and obtain required

brightness.



FEATURES

* Inherently Uniform LED Current

* High Efficiency up to 83.5%

* No Need for External Schottky Diode

* Over Output Voltage Protection

* OVP

* 1.2MHz Switching Frequency

SOT-26

4

5

3

2

1

6

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ORDERING INFORMATION

Ordering Number

Package

Packing

L5109G-AG6-R

SOT-26

Tape Reel

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MARKING