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MIC3172 - 1.25A Switching Regulators

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

General Description

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

Key Features

  • 1.25A, 65V Internal Switch Rating.
  • 3V to 40V Input Voltage Range.
  • Current Mode Operation.
  • Internal Cycle-by-Cycle Current Limit.
  • Low External Parts Count.
  • Operates in Most Switching Topologies.
  • 7 mA Quiescent Current (Operating).

📥 Download Datasheet

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

📁 Similar Datasheet

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Other Datasheets by Microchip Technology

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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.

View original datasheet text
MIC2172/3172 100 kHz, 1.25A Switching Regulators Features • 1.25A, 65V Internal Switch Rating • 3V to 40V Input Voltage Range • Current Mode Operation • Internal Cycle-by-Cycle Current Limit • Low External Parts Count • Operates in Most Switching Topologies • 7 mA Quiescent Current (Operating) • <1 μA Quiescent Current, Shutdown Mode (MIC3172) • TTL Shutdown Compatibility (MIC3172) • External Frequency Synchronization (MIC2172) • External Frequency Trim (MIC2172) • Fits Most LT1172 Sockets (see Section 5.