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 >>EMH7021-1A,500K同步升压IC(关断状态隔离输出)   双击自动滚屏
发布者:微桥 发布时间:2010/10/27 阅读:7895次    关键字: EMH7021 EMH7020 EMH7601 EMH7600
EMH7021-1A,500K同步升压IC(关断状态隔离输出)


EMH7021-1A,500KHz PWM Synchronous Boost Converter with Output Isolated During Shutdown DataSheet

General Description
    The EMH7021 is a high efficiency, synchronous fixed frequency, current-mode step-up DC/DC converter. During shutdown mode, the output is completely isolated from the input without drawing any battery current. The fixed 500KHz switching frequency obtains maximum efficiency up to 96% and uses only a few external components.
    With 150Ω loading, the minimum start-up voltage can be as low as 0.93V, provided by a one or two-cell alkaline or one-cell Li-Lon battery. The features of EMH7021 include current limit, low
battery comparator, open-drain power good output, short circuit, and thermal shutdown protection. The EMH7021 is also available in 3X3mm TDFN-10 package.

Features
 Up to 96% efficiency
 Reference voltage: 0.5V
 Output to input disconnect at shutdown mode
 Current delivery
 - 1A@VOUT=3.3V, VBAT=2.4V
 - 1A@VOUT=5.0V, VBAT=3.6V
 Switch current limit protection
 500KHz fixed switching frequency
 Thermal shutdown protection
 0.5V Low-battery comparator
 Min-start up voltage: 0.93V
 Low quiescent current: 48uA (Tpy.)
 Low shutdown current < 1uA
 TDFN 3x3mm 10 pins package

Applications
 Mobile Phone
 Digital Still Cameras
 Portable applications
 MP3 Players
 GPS Receivers


 

微桥科技 QQ:4221620 E-mail:sales@micro-bridge.com Tel:0755-83991588 谢谢

 

本文共分 1

  • 上篇文章FP5139BWR-移动电源应用LF异步升压控制IC
  • 下篇文章亚瑟莱特科技推出AX2020高亮度LED驱动IC
  •  
     

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