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LD1596

Unisonic Technologies
Part Number LD1596
Manufacturer Unisonic Technologies
Description 2A 150kHz 40V BUCK DC/DC CONVERTER
Published Mar 9, 2016
Detailed Description UNISONIC TECHNOLOGIES CO., LTD LD1596 Preliminary 2A, 150kHz, 40V BUCK DC/DC CONVERTER WITH LED DRIVER AND BATTERY CH...
Datasheet PDF File LD1596 PDF File

LD1596
LD1596

Overview
UNISONIC TECHNOLOGIES CO.
, LTD LD1596 Preliminary 2A, 150kHz, 40V BUCK DC/DC CONVERTER WITH LED DRIVER AND BATTERY CHARGE  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  ORDERING INFORMATION Ordering Number Lead Free Halogen Free LD1596L-S08-R LD1596G-S08-R LD1596L-SH2-R LD1596G-SH2-R Package SOP-8 HSOP-8 CMOS IC SOP-8 HSOP-8 Packing Tape Reel Tape Reel  MARKING www.
unisonic.
com.
tw Copyright © 2017 Unisonic Technologies Co.
, Ltd 1 of 5 QW-R502-A36.
c LD1596  PIN CONFIGURATION Preliminary CMOS IC  PIN DESCRIPTION PIN NO.
1, 2 3 4 5 6 7, 8 PIN NAME SW GND FB CS EN VIN Power Switch Pin (SW).
Ground Pin.
Output control Pin Output Current Sense Pin Enable Pin.
Supply Voltage Input Pin.
DESCRIPTION  BLOCK DIAGRAM EN 1.
23V Reference VREF Start Up Current Limit OCP + CS + - EA - FB - COMP + Latch Driver + OVP VREF - Oscillator 150KHz Thermal Shutdown 180mV + 60mΩ Switch VIN SW GND UNISONIC TECHNOLOGIES CO.
, LTD www.
unisonic.
com.
tw 2 of 5 QW-R502-A36.
c LD1596 Preliminary CMOS IC  ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Input Voltage FB Pin Voltage VIN -0.
3 ~ 45 V VFB -0.
3 ~ VIN V EN Pin Voltage SW Pin Voltage VEN -0.
3 ~ VIN V VSW -0.
3 ~ VIN V Power Dissipation Operating Junction Temperature PD Internally limited mW TJ -40 ~ 125 °C Storage Temperature T...


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