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5A  150KHz  36V  Buck  DC/DC   Converter   With   Constant

Current   Loop                                                                 XL4501

General Description
 

    The  XL4501  is a 150KHz fixed frequency PWM buck (step-down)

DC/DC converter, capable of driving a 4.5A 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. An internal compensation block is built in to

minimize  external  component  count.

Features
 

  1） Wide 8V to 36V Input Voltage Range

  2） Output Adjustable from 1.25V to 32V

  3） Minimum Drop Out 0.3V

  4） Fixed 150KHz Switching Frequency

  5） Maximum 5A Switching Current

  6） Internal Optimize Power MOSFET

  7） Excellent line and load regulation

  8） With output constant current loop

  9） Built in thermal shutdown function

 10)  Built in current limit function

 11)  Available in TO263-5L package
 

Applications
 

   1)  Car Charger

   2)  Battery Charger

   3)  LCD Monitor and LCD TV

   4)  Portable instrument power supply

   5)  Telecom / Networking Equipment

   6)  Buck constant current driver

   7)  Monitor LED Backlighting

   8)  General purpose LED lighting

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SHENZHEN DEJIANG ELECTRONICS CO.,LTD

TEL: 0755-22383631

FAX: 0755-22713300

Mp: 13543332075

E-mail: szdejiang@163.com

QQ: 1427845875

Web: www.de-jiang.com