AOZ5116QI

Overview

The AOZ5116QI is a versatile synchronous buck power stage featuring state-of-the-art technology. It operates with an input voltage range of 4.5V to 25V and delivers a continuous output current of 55A. The device supports peak currents up to 120A for 10µs pulses. It accepts PWM inputs compatible with 3V or 5V logic levels and supports tri-state control. The maximum switching frequency reaches 2MHz. Integrated features include bootstrap circuitry, diode emulation mode, and status flags. Protection mechanisms cover over-temperature, shoot-through, and under-voltage lockout conditions.

Feature Summary

• Integrates high-side and low-side drivers with power MOSFETs in a compact DrMOS module
• Supports precise control via PWM and FCCM inputs for efficient light-load operation
• Includes comprehensive fault protection against thermal events and shoot-through conditions

Applications

• Synchronous buck converters
• Point-of-load regulation
• Server and storage systems

Procurement Notes

Verify the specific suffix and marking code on the component body to confirm it matches the AOZ5116QI designation exactly. Ensure the ordering information aligns with the manufacturer's latest datasheet revision. Confirm that the package type corresponds to the specified 31-QFN configuration before integration into the design.

Selection Notes

Select this component when designing high-current synchronous buck applications requiring integrated gate drive and power stages. Consider the 31-QFN package for space-constrained layouts. Evaluate the thermal performance requirements against the device's junction temperature limits. Verify compatibility with the system's PWM controller logic levels and switching frequency constraints.

Part Context

This part belongs to the Alpha & Omega Semiconductor DrMOS family, designed for high-efficiency power conversion. It integrates the driver and power switches to simplify PCB layout and reduce component count. The technology targets demanding applications requiring high current density and reliable operation in industrial and computing environments.

Replacement Considerations

Direct substitutes within the same series may offer similar electrical characteristics but require verification of pin compatibility and thermal specifications.