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AOZ5547QI - High-Performance DrMOS Power Module

Description

The AOZ5547QI is a high efficiency synchronous buck power stage module consisting of two asymmetrical MOSFETs and an integrated driver.

The MOSFETs are individually optimized for operation in the synchronous buck configuration.

Features

  • are provided making the AOZ5547QI a highly versatile power module: The bootstrap diode is integrated in the driver. The low side MOSFET can be driven into diode emulation mode to provide asynchronous operation when required. The pinout is optimized for low inductance routing of the converter, keeping the parasitics and their effects to a minimum. Features.
  • 4.5V to 25V power supply range.
  • 4.5V to 5.5V driver supply range.
  • Up to 35A peak output current.
  • Integrated boost strap.

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Full PDF Text Transcription

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AOZ5547QI High-Current, High-Performance DrMOS Power Module General Description The AOZ5547QI is a high efficiency synchronous buck power stage module consisting of two asymmetrical MOSFETs and an integrated driver. The MOSFETs are individually optimized for operation in the synchronous buck configuration. The high side MOSFET is optimized to achieve low capacitance and gate charge for fast switching with low duty cycle operation. The low side MOSFET has ultra low ON resistance to minimize conduction loss. The compact 3.5mm x 5mm QFN package is optimally chosen and designed to minimize parasitic inductance for minimal EMI signature. The AOZ5547QI is intended for use with TTL and Tristate compatibility by using both the PWM and/or FCCM inputs for accurate control of the power MOSFETs.
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