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XL2576 fiches techniques PDF

XLSEMI - 3A 52KHz 40V Buck DC to DC Converter

Numéro de référence XL2576
Description 3A 52KHz 40V Buck DC to DC Converter
Fabricant XLSEMI 
Logo XLSEMI 





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XL2576 fiche technique
3A 52KHz 40V Buck DC to DC Converter
Datasheet
XL2576
Features
n Wide 4.5V to 40V Input Voltage Range
n 3.3V,5V,12V and adjustable versions
n Output Adjustable from 1.23V to 37V
n Maximum Duty Cycle 100%
n Minimum Drop Out 1.5V
n Fixed 52KHz Switching Frequency
n 3A Constant Output Current Capability
n Internal Optimize Power Transistor
n High efficiency
n Excellent line and load regulation
n TTL shutdown capability
n ON/OFF pin with hysteresis function
n Built in thermal shutdown function
n Built in current limit function
n 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
n LCD Monitor and LCD TV
n Digital Photo Frame
n Set-up Box
n ADSL Modem
n Telecom / Networking Equipment
Rev 2.2
Figure1. Package Type of XL2576
1

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