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MIC4685 - 3A SPAK SuperSwitcher Buck Regulator

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.

Key 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 Details

Part number MIC4685
Manufacturer Micrel Semiconductor
File Size 154.91 KB
Description 3A SPAK SuperSwitcher Buck Regulator
Datasheet download datasheet MIC4685 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.