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3A 380KHz 23V Buck DC to DC Converter       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.

Features
 

  1)  Wide 3.6V to 23V Input Voltage Range
  2)  Output Adjustable from 1.222V to 21V
  3)  Maximum Duty Cycle 100%
  4)  Minimum Drop Out 0.6V
  5)  Fixed 380KHz Switching Frequency
  6)  3A Constant Output Current Capability
  7)  Internal Optimize Power MOSFET
  8)  High efficiency
  9)  Excellent line and load regulation
10)  TTL shutdown capability
11)  EN pin with hysteresis function
12)  Built in thermal shutdown function
13)  Built in current limit function
14)  Built in output short protection function
15)  Available in SOP8 package

Applications
 

  1)  LCD Monitor and LCD TV
  2)  Digital Photo Frame
  3)  Set-up Box
  4)  ADSL Modem
  5)  Telecom / Networking Equipment

 降压型直流电源变换器芯片（高效率型）

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