XL4201芯龙(XLSEMI)一级代理推荐自带恒压恒流环路的降压型单片车充专用芯片.pdf

深圳市登辰易科技有限公司电子元件选型推荐 WWW.DCY-CHINA.COM XLSEMI Datasheet 3A 150KHz 40V Buck DC/DC Converter With Constant Current Loop XL4201 Features General Description Wide 8V to 40V Input Voltage Range The XL4201 is a 150KHz fixed frequency Output Adjustable from 1.25V to 37V PWM buck (step-down) DC/DC converter, Minimum Drop Out 0.3V capable of driving a 2.5A load with high Fixed 150KHz Switching Frequency efficiency, low ripple and excellent line and Maximum 3A Switching Current load regulation. Requiring a minimum Internal Optimize Power MOSFET number of external components, the regulator Excellent line and load regulation is simple to use and include internal With output constant current loop frequency compensation and a Built in thermal shutdown function fixed-frequency oscillator. Built in current limit function Built in input over voltage protection The PWM control circuit is able to adjust the Recommend output power less than 13W duty ratio linearly from 0 to 100%. An enable SOP8-EP (Exposed PAD) package function, an over current protection function is built inside. An internal compensation block is built in to minimize external Applications component count. Car Charger Battery Charger LCD Monitor and LCD TV Portable i