Datasheet
XL4005
5A 300KHz 32V Buck DC to DC Converter
Features
General Description
n Wide 5V to 32V Input Voltage Range
n Output Adjustable from 0.8V to 30V
The XL4005 is a 300KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 5A load with high
efficiency, low ripple and excellent line and
n
n
Maximum Duty Cycle 100%
Minimum Drop Out 0.6V
n Fixed 300KHz Switching Frequency
n 5A Constant Output Current Capability
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
n
n
n
High efficiency
Excellent line and load regulation
TTL shutdown capability
frequency
compensation
and
a
fixed-frequency oscillator.
EN pin with hysteresis function
Built in thermal shutdown function
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. When short protection function
happens, the operation frequency will be
reduced from 300KHz to 60KHz. An internal
compensation block is built in to minimize
external component count.
n
n
n
Built in current limit function
Built in output short protection function
Available in TO-263 package
Applications
n LCD Monitor and LCD TV
n Digital Photo Frame
n Set-up Box
n ADSL Modem
n Telecom / Networking Equipment
Figure1. Package Type of XL4005
若需 品和
Rev 2.1
系芯 代理商深圳市莱瑞 科技有限公司,
向
手机13590311415,Q Q 197518900
www.xlsemi.com
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