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MIC4685 - 3A SPAK SuperSwitcher Buck Regulator

Datasheet Summary

Description

The MIC4685 is a high-efficiency 200kHz stepdown (buck) switching regulator.

Power conversion efficiency of above 85% is easily obtainable for a wide variety of applications.

The MIC4685 achieves 3A of continuous current in the 7-lead SPAK package.

Features

  • include over-current protection, frequency-foldback short-circuit protection, and thermal shutdown. The MIC4685 is available in an 7-lead SPAK package with a junction temperature range of.
  • 40°C to +125°C. Features.
  • Low 2mm profile SPAK package 3A continuous output current Wide 4V to 30V input voltage.

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Datasheet preview – MIC4685

Datasheet Details

Part number MIC4685
Manufacturer Micrel Semiconductor
File Size 154.91 KB
Description 3A SPAK SuperSwitcher Buck Regulator
Datasheet download datasheet MIC4685 Datasheet
Additional preview pages of the MIC4685 datasheet.

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Full PDF Text Transcription

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MIC4685 Micrel MIC4685 3A SPAK SuperSwitcher™ Buck Regulator Final General Description The MIC4685 is a high-efficiency 200kHz stepdown (buck) switching regulator. Power conversion efficiency of above 85% is easily obtainable for a wide variety of applications. The MIC4685 achieves 3A of continuous current in the 7-lead SPAK package. The thermal performance of the SPAK allows it to replace TO-220s and TO-263s (D2 PAKs) in many applications. The SPAK saves board space with a 36% smaller footprint than TO-263. High efficiency is maintained over a wide output current range by utilizing a boost capacitor to increase the voltage available to saturate the internal power switch. As a result of this high efficiency, only the ground plane of the PCB is needed for a heat sink.
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