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MP171AGJ - primary-side regulator

Download the MP171AGJ datasheet PDF. This datasheet also covers the MP171A variant, as both devices belong to the same primary-side regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The MP171A is a primary-side regulator that provides accurate constant voltage (CV) regulation without an optocoupler.

It supports buck, boost, buck-boost, and flyback topologies.

The device’s integrated 700V MOSFET simplifies the structure and reduces cost.

Key Features

  • include thermal shutdown (TSD), VCC under-voltage lockout (UVLO), overload protection (OLP), short-circuit protection (SCP), and open-loop detection. The MP171A is available in TSOT23-5 and SOIC-8 packages.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MP171A-MPS.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Monolithic Power Systems

Part Number Description
MP171AGS primary-side regulator
MP171A primary-side regulator
MP171 700V Non-Isolated Off-Line Regulator
MP172 700V Non-Isolated Off-Line Regulator
MP1720 High-Efficiency Audio Amplifier

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
MP171A 700V, Non-Isolated, Offline Regulator, Up to 60mA Output Current with Improved EMI Performance DESCRIPTION The MP171A is a primary-side regulator that provides accurate constant voltage (CV) regulation without an optocoupler. It supports buck, boost, buck-boost, and flyback topologies. The device’s integrated 700V MOSFET simplifies the structure and reduces cost. This feature optimizes the device for offline, lowpower applications such as home appliances and standby power. The MP171A is a green-mode operation regulator. Both the peak current and switching frequency lower as the load decreases. This feature provides excellent efficiency at light load, and improves the overall efficiency.