采用 SOT23-5 和 5 Bump 微型 SMD 封装的 2MHz、600mA 降压 DC-DC 转换器




The LM3671 evaluation board is a working demonstration of a step down DC-DC converter. The application note contains information about the evaluation board. The LM3671 step-down DC-DC converter is optimized for powering ultra-low voltage circuits from a single Li-Ion cell or 3 cell NiMH/NiCd batteries. It provides up to 600 mA load current, over an input voltage range from 2.8V to 5.5V. There are several different fixed voltage output options available as well as an adjustable output voltage version. This device offers superior features and performance for mobile phones and similar portable applications with complex power management systems.

  • 16 microA typical quiescent current
  • 600 mA maximum load capability
  • 2 MHz PWM fixed switching frequency (typ)
  • Automatic PFM/PWM mode switching
  • Available in fixed output voltages as well as an adjustable version
  • SOT23-5 package
  • Internal synchronous rectification for high efficiency
  • Internal soft start
  • 0.01 microA typical shutdown current
  • Operates from a single Li-Ion cell or 3 cell NiMH/NiCd batteries
  • Only three tiny surface-mount external components required (one inductor, two ceramic capaitors)
  • Current overload protection


  • Mobile phones
  • PDAs
  • MP3 players
  • W-LAN
  • Portable Instruments
  • Digital still cameras
  • Portable Hard disk Drives


AC/DC 和 DC/DC 转换器(集成 FET)
LM3671 2MHz、600mA 降压直流/直流转换器 LM3671-Q1 2MHz、600mA 降压直流/直流转换器
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LM3671MF-1.8EV — 2MHz, 600mA Step-Down DC-DC Converter in SOT23-5 and 5-Bump Micro SMD

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类型 标题 下载最新的英文版本 日期
* EVM 用户指南 AN-1395 LM3671 Evaluation Board (Rev. F) 2013年 4月 30日
* 应用手册 Application Note 1395 LM3671 Evaluation Board (cn) 2008年 10月 10日
证书 LM3671MF-1.8EV EU Declaration of Conformity (DoC) 2019年 1月 2日


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