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LM3679 Datasheet 350ma Miniature Step-down DC-dc Converter

Manufacturer: Texas Instruments

Overview: LM3679 .ti. SNVS510A – SEPTEMBER 2007 – REVISED FEBRUARY 2008 LM3679 3MHz, 350mA Miniature Step-Down DC-DC Converter for Ultra Low Profile Applications (Height < 0.

General 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.

The LM3679 output voltage can be configured to 1.2V, 1.5V, or 1.8V.

Key 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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LM3678 High-Performance Miniature 1.5-A Step-Down DC-DC Converter
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LM3679 Distributor