AOZ5517QI

Overview

The AOZ5517QI is a high-efficiency synchronous buck power stage module manufactured by Alpha & Omega Semiconductor Inc. It integrates two asymmetrical MOSFETs and a gate driver into a single package, designed for demanding power conversion applications. The device operates with a voltage rating of 25V and supports a continuous current of 60A. It utilizes FCCM (Forced Continuous Conduction Mode) control to optimize efficiency across various load conditions. The component is housed in a compact 31-QFN (5x5mm) package, facilitating surface-mount installation on printed circuit boards while providing robust thermal performance.

Feature Summary

• Integrates asymmetrical MOSFETs and gate driver for high-efficiency synchronous buck conversion
• Supports FCCM control mode to maintain optimal efficiency under varying load conditions
• Housed in a compact 31-QFN (5x5mm) package for space-constrained designs

Applications

• Synchronous buck converters
• Point-of-load (POL) regulation
• Server and storage power supplies

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as AOZ5517QI-03 exist with potentially different electrical characteristics or packaging configurations. Confirm RoHS compliance status and moisture sensitivity level requirements against your manufacturing process specifications. Ensure the selected variant matches the intended control scheme and thermal management strategy for the target application environment.

Selection Notes

Select this component for applications requiring a compact, integrated solution for 25V synchronous buck topologies. The 60A current capability and FCCM support make it suitable for high-density power delivery systems. Evaluate the thermal resistance of the 31-QFN package against your board layout and cooling capabilities to ensure reliable operation under maximum load conditions.

Part Context

This part belongs to the AOZ5517 series of DrMOS modules from Alpha & Omega Semiconductor. These modules are engineered to simplify power supply design by combining power switches and drivers. The series targets high-performance computing and industrial applications where size, efficiency, and reliability are critical parameters for system architecture.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing gate drive signals and thermal requirements before considering alternative components.