XL4301 Datasheet, PDF (1/10 Pages) List of Unclassifed Manufacturers – 3A 180KHz 45V Buck DC/DC Converter With Constant Current Loop

XLSEMI
3A 180KHz 45V Buck DC/DC Converter With Constant Current Loop
Datasheet
XL4301
Features
„ Operation Voltage from 8V to 40V
„ Adjust VOUT from 1.25V to VIN-2V
„ Minimum Drop Out 0.3V
„ Fixed 180KHz Switching Frequency
„ Maximum 3A Switching Current
„ Internal Optimize Power MOSFET
„ Excellent line and load regulation
„ With output constant current loop
„ Built in thermal shutdown function
„ Built in current limit function
„ Built in output cable compensation
„ Recommend output power less than 13W
„ SOP8-EP (Exposed PAD) package
Applications
„ Car Charger
„ Battery Charger
„ LCD Monitor and LCD TV
„ Portable instrument power supply
„ Telecom / Networking Equipment
„ Buck constant current driver
General Description
The XL4301 is a 180KHz 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.
The XL4301 built in a simple,
user-programmable output cable voltage drop
compensation function. Use the curve in
Table 2 to choose the proper compensation
resistance values for cable compensation.
Rev1.0
Figure1. Package Type of XL4301
www.xlsemi.com
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