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LM3678 - High-Performance Miniature 1.5-A Step-Down DC-DC Converter

Datasheet Summary

Description

The LM3678 step-down DC-DC converter is optimized for powering low-voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.5 V to 5.5 V.

It provides up to 1.5-A load current, over the entire input voltage range.

LM3678 offers a 0.8V or 1.2V option.

Features

  • 1.
  • 2 VOUT = 0.8 V or 1.2 V.
  • VIN = 2.5 V to 5.5 V.
  • 1.5-A Maximum Load Capability.
  • 3.3-MHz (Typical) PWM Fixed Switching Frequency Allows Use of 1-µH Inductor.
  • ±3% DC Output Voltage Precision.
  • 0.01-µA (Typical) Shutdown Current.
  • Internal Synchronous Rectification for High Efficiency.
  • Internal Soft Start.
  • Current Overload and Thermal Shutdown Protection.

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Datasheet preview – LM3678

Datasheet Details

Part number LM3678
Manufacturer Texas Instruments
File Size 1.90 MB
Description High-Performance Miniature 1.5-A Step-Down DC-DC Converter
Datasheet download datasheet LM3678 Datasheet
Additional preview pages of the LM3678 datasheet.

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Full PDF Text Transcription

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LM3678 www.ti.com SNVS464C – APRIL 2008 – REVISED MAY 2013 High-Performance Miniature 1.5-A Step-Down DC-DC Converter for Handheld Applications Check for Samples: LM3678 FEATURES 1 •2 VOUT = 0.8 V or 1.2 V • VIN = 2.5 V to 5.5 V • 1.5-A Maximum Load Capability • 3.3-MHz (Typical) PWM Fixed Switching Frequency Allows Use of 1-µH Inductor • ±3% DC Output Voltage Precision • 0.
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