XL2576 Datasheet, PDF (1/14 Pages) List of Unclassifed Manufacturers – 3A 52KHz 40V Buck DC to DC Converter

3A 52KHz 40V Buck DC to DC Converter
Datasheet
XL2576
Features
„ Wide 4.5V to 40V Input Voltage Range
„ 5V,12V and adjustable versions
„ Output Adjustable from 1.23V to 37V
„ Maximum Duty Cycle 100%
„ Minimum Drop Out 1.5V
„ Fixed 52KHz Switching Frequency
„ 3A Constant Output Current Capability
„ Internal Optimize Power Transistor
„ High efficiency
„ Excellent line and load regulation
„ TTL shutdown capability
„ ON/OFF pin with hysteresis function
„ Built in thermal shutdown function
„ Built in current limit function
„ Available in TO-220,TO-263 packages
General Description
The XL2576 is a 52 KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 3A load with high
efficiency, low ripple and excellent line and
load regulation. Requiring a minimum
number of external components, the regulator
is simple to use and include internal
frequency compensation and a
fixed-frequency oscillator.
The PWM control circuit is able to adjust the
duty ratio linearly from 0 to 100%. An enable
function, an over current protection function
is built inside. An internal compensation
block is built in to minimize external
component count.
Applications
„ LCD Monitor and LCD TV
„ Digital Photo Frame
„ Set-up Box
„ ADSL Modem
„ Telecom / Networking Equipment
Rev 2.6
Figure1. Package Type of XL2576
www.xlsemi.com
1