AOZ5316NQI

Overview

The AOZ5316NQI is a single-phase power driver module classified as a DrMOS device manufactured by Alpha & Omega Semiconductor. It features a half-bridge output configuration designed for synchronous buck converter applications. The component supports a load voltage range of 2.5V to 25V and operates with a supply voltage between 4.5V and 5.5V. It delivers an output current of 55A per channel with a peak output capability of 120A. The unit utilizes a PWM interface and is housed in a 31-PowerVFQFN module package, specifically the 31-QFN(5x5) footprint.

Feature Summary

• Integrates high-side and low-side MOSFETs with gate drivers into a compact DrMOS power stage.
• Includes built-in bootstrap circuitry and diode simulation functionality for simplified design.
• Provides status flags to indicate operational state and fault conditions.
• Incorporates comprehensive fault protection mechanisms including over-temperature, shoot-through, and under-voltage lockout.

Applications

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

Procurement Notes

Verify the specific suffix 'NQI' matches the required RoHS compliance and lead time specifications. Confirm the package marking aligns with the 31-QFN(5x5) physical dimensions. Ensure the ordering quantity meets the manufacturer's standard packaging requirements. Cross-reference the datasheet revision date to confirm feature consistency before finalizing procurement.

Selection Notes

Select this component when a 55A continuous current rating and 25V maximum load voltage are required. The 31-QFN(5x5) package is suitable for space-constrained designs needing high power density. Verify that the control logic operates within the 4.5V to 5.5V supply range. Consider the thermal performance characteristics of the PowerVFQFN package for heat dissipation planning.

Part Context

This part belongs to the AOZ53xx series of DrMOS devices from Alpha & Omega Semiconductor. These components are engineered to replace discrete MOSFET and driver combinations, reducing board space and improving efficiency. The series targets high-current DC-DC conversion needs in modern electronic systems requiring reliable power management.

Replacement Considerations

Check AOZ5317NQI for higher current capacity or AOZ5311NQI for lower voltage requirements. Verify pin compatibility and thermal resistance values when substituting. Ensure the replacement part supports the same PWM interface and fault protection features.