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LM3679 - 350mA Miniature Step-Down DC-DC Converter

Datasheet Summary

Description

The LM3679 step-down DC-DC converter is optimized for powering ultra-low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.5V to 5.5V.

It provides up to 350mA load current, over the entire input voltage range.

Features

  • 1.
  • 2 16 µA Typical Quiescent Current.
  • 350 mA Maximum Load Capability.
  • 3 MHz PWM Fixed Switching Frequency (typ).
  • Automatic PFM/PWM Mode Switching.
  • Available in 5-Bump DSBGA YZR Package and YPD Package.
  • Internal Synchronous Rectification for High Efficiency.
  • Internal Soft Start.
  • 0.01 µA Typical Shutdown Current.
  • Operates from a Single Li-Ion Cell Battery.
  • Current Overload and Thermal Shutdown Protection.

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Datasheet preview – LM3679

Datasheet Details

Part number LM3679
Manufacturer Texas Instruments
File Size 5.67 MB
Description 350mA Miniature Step-Down DC-DC Converter
Datasheet download datasheet LM3679 Datasheet
Additional preview pages of the LM3679 datasheet.

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Full PDF Text Transcription

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LM3679 www.ti.com SNVS510A – SEPTEMBER 2007 – REVISED FEBRUARY 2008 LM3679 3MHz, 350mA Miniature Step-Down DC-DC Converter for Ultra Low Profile Applications (Height < 0.55mm) Check for Samples: LM3679 FEATURES 1 •2 16 µA Typical Quiescent Current • 350 mA Maximum Load Capability • 3 MHz PWM Fixed Switching Frequency (typ) • Automatic PFM/PWM Mode Switching • Available in 5-Bump DSBGA YZR Package and YPD Package • Internal Synchronous Rectification for High Efficiency • Internal Soft Start • 0.01 µA Typical Shutdown Current • Operates from a Single Li-Ion Cell Battery • Current Overload and Thermal Shutdown Protection • Three External Components Required for Typical Applications • Low Profile Solution (0.
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