AOZ5516QI-02

Overview

The AOZ5516QI-02 is a DrMOS synchronous buck converter module designed for high-current applications. It integrates a half-bridge driver and power MOSFETs in a 31-QFN (5x5) package. The device supports an input voltage range of 4.5V to 25V and delivers up to 55A output current per channel with peak currents reaching 120A. Operating temperatures span from -40°C to 150°C TJ, ensuring reliability in demanding environments.

Feature Summary

• Integrates half-bridge driver and power MOSFETs into a single compact DrMOS solution
• Supports PWM interface control for synchronous buck converter topologies
• Includes built-in protection features such as over-temperature, breakdown, and UVLO
• Features bootstrap circuitry and diode emulation for efficient operation

Applications

• Synchronous buck converters
• Point-of-load regulation
• Industrial power supplies
• Data center server VRMs

Procurement Notes

Verify the specific suffix '-02' against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Ensure the ordering part number matches the required tape-and-reel quantity and packaging format. Cross-reference the component marking code with the latest production data sheet to avoid counterfeit or obsolete variants during procurement.

Selection Notes

Select this component when designing high-density power stages requiring integrated gate drive and low RDS(on). Evaluate thermal performance based on the 31-QFN exposed pad design and ambient conditions. Confirm that the 4.5V to 25V input range aligns with the system bus voltage. Consider the 55A continuous current rating relative to the PCB copper area and cooling requirements for the target application.

Part Context

This part belongs to Alpha & Omega Semiconductor's AOZ5x series of DrMOS devices. These modules are engineered to simplify power supply design by combining drivers and power switches. The AOZ5516QI-02 specifically targets applications needing high current density in small footprints, serving as a key building block for modern DC-DC conversion systems.

Replacement Considerations

Check for direct substitutes within the AOZ5516 family or other AOZ5x series parts with compatible current ratings and package dimensions. Verify pin-to-pin compatibility before substitution. Consult the manufacturer's cross-reference guide for approved alternatives if the specific -02 suffix variant is unavailable.