XL4201 Datasheet, PDF (1/14 Pages) List of Unclassifed Manufacturers – 3A 150KHz 40V Buck DC/DC Converter With Constant Current Loop

XLSEMI
3A 150KHz 40V Buck DC/DC Converter With Constant Current Loop
Datasheet
XL4201
Features
n Wide 8V to 40V Input Voltage Range
n Output Adjustable from 1.25V to 37V
n Minimum Drop Out 0.3V
n Fixed 150KHz Switching Frequency
n Maximum 3A Switching Current
n Internal Optimize Power MOSFET
n Excellent line and load regulation
n With output constant current loop
n Built in thermal shutdown function
n Built in current limit function
n Built in input over voltage protection
n Recommend output power less than 13W
n SOP8-EP (Exposed PAD) package
Applications
n Car Charger
n Battery Charger
n LCD Monitor and LCD TV
n Portable instrument power supply
n Telecom / Networking Equipment
n Buck constant current driver
n Monitor LED Backlighting
n General purpose LED lighting
General Description
The XL4201 is a 150KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 2.5A 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.
Rev2.0
Figure1. Package Type of XL4201
1
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