UNISONIC TECHNOLOGIES CO., LTD

LD1596

Preliminary

CMOS IC

www.unisonic.com.tw

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Copyright © 2013 Unisonic Technologies Co., Ltd

QW-R502-A36.a

2A 150kHz 40V BUCK DC/DC

CONVERTER WITH LED

DRIVER AND BATTERY

CHARGE

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DESCRIPTION

The UTC LD1596 is a 150KHz fixed frequency PWM buck

(step-down) DC/DC converter, capable of driving a 2A load with

high efficiency.

The PWM control circuit is able to adjust the duty ratio linearly

from 0~100%. An enable function, an over current protection

function is built inside. An internal compensation block is built in to

minimize external component count.



FEATURES

* Wide 4.5V~40V Input Voltage Range

* Output Adjustable from 1.235V~37V

* Minimum Drop Out 1.5V

* Fixed 150kHz Switching Frequency

* 2A Constant Output Current Capability

* Internal Optimize Power Transistor

* Excellent line and load regulation

* TTL shutdown capability

* ON/OFF pin with hysteresis function

SOP-8

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ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

LD1596L-S08-T

LD1596G-S08-T

SOP-8

Tube

LD1596L-S08-R

LD1596G-S08-R

SOP-8

Tape Reel