AOZ5339QI

Overview

The AOZ5339QI is a high-performance DrMOS power module from Alpha & Omega Semiconductor, designed for synchronous buck converter applications. It integrates a half-bridge driver and power MOSFETs in a compact 31-QFN (5x5) package. The device supports an input voltage range of 2.5V to 25V and delivers a continuous output current of 65A per channel with a peak current capability of 120A. It operates on a 4.5V to 5.5V supply voltage and functions within a temperature range of -40°C to 150°C. Key electrical parameters include PWM interface control and integrated fault protection mechanisms.

Feature Summary

• Integrates half-bridge driver and synchronous rectifier in a single DrMOS module
• Supports wide input voltage range up to 25V for flexible system design
• Includes built-in bootstrap circuit and diode emulation functionality
• Provides comprehensive fault protection including over-temperature, shoot-through, and UVLO

Applications

• Graphics Processing Unit (GPU) power delivery
• Synchronous buck converter designs
• High-current point-of-load regulation

Procurement Notes

Verify the complete part number including suffixes such as TR for tape and reel packaging when ordering. Confirm that the 31-QFN (5x5) package dimensions match your PCB footprint requirements. Ensure compatibility with the specified 4.5V to 5.5V driver supply voltage. Check RoHS3 compliance status if required by your manufacturing standards. Validate thermal management solutions given the 150°C junction temperature rating.

Selection Notes

Select this component for applications requiring high current density in a small form factor. The 65A continuous current rating suits demanding GPU and CPU load lines. Consider the 31-pin QFN package for its thermal performance and space efficiency. Verify that the control interface matches your PWM controller specifications. Evaluate the need for external components based on the integrated bootstrap and protection features.

Part Context

The AOZ5339QI belongs to the AOZ53xx series of DrMOS devices from Alpha & Omega Semiconductor. This series targets high-efficiency power conversion for computing and graphics applications. The module combines gate drive and power stages to simplify design and reduce board space. It represents a solution for dense power architectures requiring reliable operation under high load conditions.

Replacement Considerations

The AOZ5318NQI is a similar DrMOS device from the same manufacturer offering comparable integration. Both parts utilize the 31-QFN (5x5) package and serve synchronous buck converter applications. Verify specific current ratings and feature sets before substitution to ensure functional equivalence.