深圳市德江电子有限公司 （非本站正式会员）

   我司专业代理分销芯龙电源管理IC，是授权代理商，长期供应，

可提供技术支持， 欢迎来电查询！

     产品特点：

1）内置过温、过流、短路等全套保护功能，可靠性高;

2）集成高度，系统精简，性价比高。

     功能替代：LM2594,AE1509,TD1509, AP1509,　 OCP2019,

HWD61410,　EC9409,　CM2593

    应用领域：路由器、小家电控制器、工业缝纫机、知能电表、

燃气灶控制器等。 

    2A 150KHz 40V Buck DC to DC Converter         　  XL1509

    General Description

    The XL1509 is a 150 KHz fixed frequency PWM buck (step-down)

DC/DC  converter, capable of driving a 2A  load with high efficiency,

low  ripple   and  excellent  line  and l  oad  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  circui t is able to adjust the duty ratio linearly

from  0  to  100%.  An  enable  function,  an over current protection

function is built inside. When second current limit function happens,

the operation frequency will be reduced from 150KHz to 50KHz.  An

internal   compensation   block   is   built   in   to   minimize  external

component   count.

    Featuresn

  1） Wide 4.5V to 40V Input Voltage Range

  2） 3.3V,5V,12V, and adjustable versions

  3） Output Adjustable from 1.23V to 37V

  4） Maximum Duty Cycle 100%

  5） Minimum Drop Out 1.5V

  6） Fixed 150KHz Switching Frequency

  7） 2A Constant Output Current Capability

  8） Internal Optimize Power Transistor

  9） High efficiency

10） Excellent line and load regulation

11） TTL shutdown capability

12） ON/OFF pin with hysteresis function

13） Built in thermal shutdown function

14） Built in current limit function

15） Built in second current limit function

16） Available in SOIC8 package

    Applications
 

  1） LCD Monitor and LCD TV

  2） Digital Photo Frame

  3） Set-up Box

  4） ADSL Modem

  5） Telecom / Networking Equipment

                                                                                                                                                    ADJ: Adjust
                                                                                                                                                    3.3 :   3.3V
                                                                                                                                                    5.0 :   5V
                                                                                                                                                    12  : 12V

XLSEMI Pb-free products, as designated with “E1” suffix in the par number, are RoHS compliant.

    降压型直流电源变换器芯片（常规型）

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