微桥科技产品新闻动态管理发布系统 现在是
首页 ·公司动态 ·产品动态 ·原厂动态 ·行业动态 ·技术资料 ·LED驱动 ·DC-DC ·AC-DC ·MOSFET ·音频功放 ·电池管理 ·霍尔及马达驱动 ·其他 ·联系我们

当前位置:首页>>DC-DC>>ESMT/EMP晶豪/晶镁 >>EML3172-3A,Synchronous Step-Down DC-DC Converter   双击自动滚屏
发布者:来自网络 发布时间:2014/3/28 阅读:7821次    关键字: DC-DC
EML3172-3A,Synchronous Step-Down DC-DC Converter


EML3172-3A,Synchronous Step-Down DC-DC Converter DataSheet

General Description
     EML3172 is a high efficiency, DC-DC synchronous buck converter which provides 3A output loading after output voltage reach preset voltage. EML3172 uses different modulation algorithms for various loading conditions. Under heavy load, EML3172 regulates the output voltage using Pulse Width Modulation (PWM). The PWM mode provides low output voltage ripple and fixed frequency noise. While in light load, it enters Power Save Modulation (PSM) automatically to ensure a highly efficient operation at light load condition. Under very heavy load condition or when  the input voltage approaches the output voltage, EML3172 enters low dropout voltage operation under 100% duty cycle. The internal generated 0.8V precision feedback reference voltage is designed for low output voltage request. Low Power-FET Ron synchronous switch dramatically reduces conduction loss.
     The EML3172 is available in the tiny package of TSOT-23-6.

Features
 Wide Operating Voltage Ranges : 2.5V to 5.5V
 3A Output Current
 High efficiency Buck Power Converter
 Auto-select PSM/PWM
 LDO mode: duty cycle: 100%
 Synchronous Power Switches Rectification, no Schottky Diode Required
 1.4MHz Switching Frequency
 Internal Soft-Start
 Current Limit Protection
 Over Temperature Protection
 Output Shorting Protect
 Output Over Voltage Protection

Applications
 Cellular telephone
 Wireless and DSL Modems
 Digital Still Cameras
 Portable Products
 MP3 Players


本文共分 1

  • 上篇文章AX3604-Dual PWM step-down DC-DC converter
  • 下篇文章AX5525-1.2MHz,Peak 5.5A Current,Boost Converter
  •  
     

    版权所有 Copyright Micro Bridge Technology Co.,Ltd. All rights reserved.粤ICP备05065909号