2A 380KHz 18V Buck DC to DC Converter XL1513
Rev 1.0 www.xlsemi.com
1
Features
n Wide 3.6V to 18V Input Voltage Range
n Output Adjustable from 0.8V to 16V
n Maximum Duty Cycle 100%
n Minimum Drop Out 0.6V
n Fixed 380KHz Switching Frequency
n 2A Constant Output Current Capability
n Internal Optimize Power MOSFET
n High efficiency
n Excellent line and load regulation
n TTL shutdown capability
n EN pin with hysteresis function
n Built in thermal shutdown function
n Built in current limit function
n Built in output short protection function
n Available in SOP8 package
Applications
n LCD Monitor and LCD TV
n Digital Photo Frame
n Set-up Box
n ADSL Modem
n Telecom / Networking Equipment
General Description
The XL1513 is a 380KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 2A 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. When short protection function
happens, the operation frequency will be
reduced from 380KHz to 80KHz. An internal
compensation block is built​