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Datasheet
XL2010
3.5A 180KHz 36V Buck DC to DC Converter With CV/CC Loop
Features
General Description
n Wide 8V to 36V Input Voltage Range
n Output Adjustable from 1.25V to 32V
The XL2010 is a 180 KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 3.5A load with high
efficiency, low ripple and excellent line and
n
n
Maximum Duty Cycle 100%
Minimum Drop Out 0.3V
n Fixed 180KHz Switching Frequency
n Maximum 3.5A Switching Current
n Internal Optimize Power MOSFET
load regulation. Requiring
a
minimum
number of external components, the regulator
is simple to use and include internal
n
n
High efficiency
Excellent line and load regulation
frequency
compensation
and
a
fixed-frequency oscillator.
n With output constant current loop
n
n
n
n
Built in thermal shutdown function
Built in current limit function
Built in output short protection function
SOP8-EP package
The PWM control circuit is able to adjust the
duty ratio linearly from 0 to 100%. An over
current protection function is built inside.
When short protection function happens, the
operation frequency will be reduced from
180KHz to 48KHz. An internal compensation
block is built in to minimize external
component count.
Applications
n Car Charger
n Battery Charger
n LCD Monitor and LCD TV
n Portable instrument power supply
n Telecom / Networking Equipment
Figure1. Package Type of XL2010
Rev 1.1
www.xlsemi.com
1