AOZ5118QI-01

Overview

The AOZ5118QI-01 is a high-current, high-performance DrMOS power module from Alpha & Omega Semiconductor. It integrates two asymmetrical MOSFETs and an integrated driver into a synchronous buck power stage. The device operates with a maximum voltage of 25V and supports a current capacity of 65A. It utilizes a 31-QFN (5x5) package for compact surface-mount installation. The module features SMOD and EN control inputs, enabling precise management of power MOSFET switching activities through PWM signals.

Feature Summary

• Integrates asymmetrical MOSFETs and driver in a single module
• Supports SMOD and EN control for precise switching management
• Compatible with 3V/5V logic levels
• Enables three-state PWM operation

Applications

• High-current synchronous buck converters
• Server and data center power distribution
• Graphics processing unit (GPU) power supplies
• Point-of-load (POL) conversion modules

Procurement Notes

Verify the specific suffix designation to ensure compatibility with required control interfaces and pin configurations. Confirm that the selected variant matches the intended thermal management requirements for the 31-QFN package. Cross-reference official datasheets to validate electrical ratings against system specifications before integration.

Selection Notes

Select this component for applications requiring high current density and efficient power conversion in a small footprint. Ensure the input voltage range does not exceed the 25V limit. Verify that the control logic aligns with the 3V/5V compatibility and that the PCB layout supports the thermal dissipation needs of the QFN package.

Part Context

This part belongs to the DrMOS family, designed to simplify power supply design by combining power switches and drivers. It targets high-efficiency applications where space and thermal performance are critical constraints. The integration reduces component count and improves reliability compared to discrete solutions.

Replacement Considerations

Check for direct substitutes within the same manufacturer's portfolio that offer similar current ratings and package dimensions. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.