LM3671MF-1.5EV

2MHz, 600mA Step-Down DC-DC Converter in SOT23-5 and 5-Bump Micro SMD

LM3671MF-1.5EV

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Overview

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.

Features
  • 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

Applications

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

 

Buck converters (integrated switch)
LM3671 2MHz, 600mA Step-Down DC-DC Converter LM3671-Q1 2MHz, 600mA Step-Down DC-DC Converter
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Evaluation board

LM3671MF-1.5EV — 2MHz, 600mA Step-Down DC-DC Converter in SOT23-5 and 5-Bump Micro SMD

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Technical documentation

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Type Title Date
* EVM User's guide AN-1395 LM3671 Evaluation Board (Rev. F) 30 Apr 2013
Certificate LM3671MF-1.5EV EU Declaration of Conformity (DoC) 02 Jan 2019

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