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AOZ5273QI - Smart Power Stage

Datasheet Summary

Description

The AOZ5273QI is a general-purpose Smart Power Stage (SPS) consisting of two asymmetrical MOSFETs and an integrated driver for high current, high frequency DC-DC converters.

The AOZ5273QI provides an output voltage signal (IMON), which represents the real-time module current with a gain of 5mV/A.

Features

  • 3V to 20V power supply range.
  • 30V HS MOSFET provides better system ruggedness.
  • 70A continuous output current.
  • Up to 100A for 10ms on pulse.
  • Up to 150A for 10µs on pulse.
  • Optimized for switching frequency up to 1MHz.
  • Integrated current monitor (5mV/A) with 5% accuracy over temperature.
  • Integrated temperature monitor (8mV/°C) with 2% accuracy.
  • Fault Indicator.
  • Under-Voltage LockOut (UVLO) on VCC.
  • Under-Voltage LockOut (UVLO) on VIN.

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Datasheet Details

Part number AOZ5273QI
Manufacturer Alpha & Omega Semiconductors
File Size 1.38 MB
Description Smart Power Stage
Datasheet download datasheet AOZ5273QI Datasheet
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Full PDF Text Transcription

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AOZ5273QI High-Current, High-Performance Smart Power Stage General Description The AOZ5273QI is a general-purpose Smart Power Stage (SPS) consisting of two asymmetrical MOSFETs and an integrated driver for high current, high frequency DC-DC converters. The AOZ5273QI provides an output voltage signal (IMON), which represents the real-time module current with a gain of 5mV/A. The IMON signal can be directly used to replace inductor DCR sensing or resistor sensing in multiphase voltage regulator systems without the need for temperature compensation. The AOZ5273QI also includes an accurate module temperature monitor (TMON). TMON is a voltage sourced signal with a gain of 8mV/°C. The MOSFETs are individually optimized for operation in the synchronous buck configuration.
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