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XL1583

XLSEMI
Part Number XL1583
Manufacturer XLSEMI
Description 3A 380KHz 23V Buck DC to DC Converter
Published Aug 26, 2013
Detailed Description Datasheet 3A 380KHz 23V Buck DC to DC Converter Features „ „ „ „ XL1583 General Description The XL1583 is a 380KHz fixe...
Datasheet PDF File XL1583 PDF File

XL1583
XL1583


Overview
Datasheet 3A 380KHz 23V Buck DC to DC Converter Features „ „ „ „ XL1583 General Description The XL1583 is a 380KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 3A 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 in to minimize external component count.
Wide 3.
6V to 23V Input Voltage Range Output Adjustable from 1.
222V to 21V Maximum Duty Cycle 100% Minimum Drop Out 0.
6V „ „ „ „ „ „ „ „ „ „ „ Fixed 380KHz Switching Frequency 3A Constant Output Current Capability Internal Optimize Power MOSFET High efficiency Excellent line and load regulation TTL shutdown capability EN pin with hysteresis function Built in thermal shutdown function Built in current limit function Built in output short protection function Available in SOP8 package Applications „ „ „ „ „ LCD Monitor and LCD TV Digital Photo Frame Set-up Box ADSL Modem Telecom / Networking Equipment Figure1.
Package Type of XL1583 Rev 1.
0 1 www.
xlsemi.
com Free Datasheet http://www.
datasheet4u.
com/ Datasheet 3A 380KHz 23V Buck DC to DC Converter Pin Configurations XL1583 XL1583 Figure2.
Pin Configuration of XL1583 (Top View) Table 1 Pin Description Pin Number 1,6,8 2 3 4 Pin Name NC VIN SW GND Description No Connected.
Supply Voltage Input Pin.
XL1583 operates from a 3.
6V to 23V DC voltage.
Bypass Vin to GND with a suitably large capacitor to eliminate noise on the input.
Power Switch Output Pin (SW).
Output is the switch node that supplies power to the output.
Ground Pin.
Care must be taken in layout.
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