UNISONIC TECHNOLOGIES CO., LTD

L4120

CMOS IC

www.unisonic.com.tw

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Copyright © 2017 Unisonic Technologies Co., Ltd

QW-R125-031.C

40V/1.2A INTEGRATED

POWER LED DRIVER

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DESCRIPTION

The UTC L4120 is a continuous conduction mode inductive

step-down converter, designed for driving single or multiple series

connected LEDs. Using a few external components.

The UTC L4120 has a build-in power switch, based on different

input voltage, The UTC L4120 can drive several 1W or 3W LEDs.

The device has the function of thermal shutdown protection and

LED short-circuit/open-circuit protection.

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FEATURES

* Up to 1.2A output current

* High efficiency (up to 97%)

* Wide input voltage range: 5V~30V

* Typical ±5% output current accuracy

* Single DIM pin on/off and brightness control using DC voltage or

PWM signal

* Internal thermal shutdown protection.

* Adjustable Constant LED Current

1

SOT-89-5

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ORDERING INFORMATION

Ordering Number

Lead Free

Halogen Free

Package

Packing

L4120L-AB5-R

L4120G-AB5-R

SOT-89-5

Tape Reel

(1) R: Tape Reel

(2) AB5: SOT-89-5

(3) G: Halogen Free and Lead Free

, L: Lead Free

L4120G-AB5-R

(1)Packing Type

(2)Package Type

(3)Lead Free

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MARKING