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MIC3172 - 100kHz 1.25A Switching Regulators

Download the MIC3172 datasheet PDF. This datasheet also covers the MIC2172 variant, as both devices belong to the same 100khz 1.25a switching regulators family and are provided as variant models within a single manufacturer datasheet.

General Description

The MIC2172 and MIC3172 are complete 100kHz SMPS current-mode controllers with internal 65V 1.25A power switches.

Key Features

  • external frequency synchronization or frequency adjustment, while the MIC3172 features an enable/shutdown control input. Although primarily intended for voltage step-up.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MIC2172-MicrelSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number MIC3172
Manufacturer Micrel Semiconductor
File Size 904.28 KB
Description 100kHz 1.25A Switching Regulators
Datasheet download datasheet MIC3172 Datasheet

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Other Datasheets by Micrel Semiconductor

Part Number Description
MIC3000 SFP Management IC
MIC3001 SFP Management IC
MIC3201 High Brightness LED Driver
MIC3202 High-Brightness LED Driver
MIC3202-1 High-Brightness LED Driver

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.

View original datasheet text
MIC2172/3172 100kHz 1.25A Switching Regulators General Description The MIC2172 and MIC3172 are complete 100kHz SMPS current-mode controllers with internal 65V 1.25A power switches. The MIC2172 features external frequency synchronization or frequency adjustment, while the MIC3172 features an enable/shutdown control input. Although primarily intended for voltage step-up applications, the floating switch architecture of the MIC2172/3172 makes it practical for step-down, inverting, and Cuk configurations as well as isolated topologies. Operating from 3V to 40V, the MIC2172/3172 draws only 7mA of quiescent current making it attractive for battery operated supplies. The MIC3172 is for applications that require on/off control of the regulator.