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XL4013

Xlsemi
Part Number XL4013
Manufacturer Xlsemi
Description 4A 180KHz 36V Buck DC to DC Converter
Published Sep 21, 2014
Detailed Description Datasheet 4A 180KHz 36V Buck DC to DC Converter Features n n n n n n n n n n n n n Wide 8V to 36V Input Voltage Range Ou...
Datasheet PDF File XL4013 PDF File

XL4013
XL4013

Overview
Datasheet 4A 180KHz 36V Buck DC to DC Converter Features n n n n n n n n n n n n n Wide 8V to 36V Input Voltage Range Output Adjustable from 1.
25V to 32V Maximum Duty Cycle 100% Minimum Drop Out 0.
3V Fixed 180KHz Switching Frequency 4A Constant Output Current Capability Internal Optimize Power MOSFET High efficiency Excellent line and load regulation Built in thermal shutdown function Built in current limit function Built in output short protection function Available in TO-252 package XL4013 General Description The XL4013 is a 180 KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 4A 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 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 n n LCD Monitor and LCD TV Portable instrument power supply Telecom / Networking Equipment Figure1.
Package Type of XL4013 Rev 1.
3 1 www.
xlsemi.
com Datasheet 4A 180KHz 36V Buck DC to DC Converter Pin Configurations XL4013 Figure2.
Pin Configuration of XL4013 (Top View) Table 1 Pin Description Pin Number 1 Pin Name GND Description Ground Pin.
Care must be taken in layout.
This pin should be placed outside of the Schottky Diode to output capacitor ground path to prevent switching current spikes from inducing voltage noise into XL4013.
Feedback Pin (FB).
Through an external resistor divider network, FB senses the output voltage and regulates it.
The feedback threshold voltage is 1.
25V.
Power Switch Output Pin (SW).
SW is the switch node that supplies power to the output.
Internal Voltage Regulat...


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