AOZ5612BQI

Overview

The AOZ5612BQI is a high-efficiency synchronous buck power stage module from Alpha & Omega Semiconductor. It integrates two asymmetrical MOSFETs and an integrated driver within a compact 5mm x 5mm QFN-31L package. The device supports a 4.5V to 20V power supply range and delivers up to 60A continuous output current, with peak capabilities of 80A for 10ms pulses and 120A for 10µs pulses. It operates at switching frequencies up to 2MHz and features a 4.5V to 5.5V driver supply range.

Feature Summary

• Integrates optimized asymmetrical MOSFETs and driver for low capacitance and ultra-low ON resistance
• Supports PWM and SMOD# inputs for accurate control, including diode emulation mode
• Features integrated bootstrap switch and UVLO protection
• Compatible with 3V logic and Tri-State PWM signals

Applications

• Memory and graphic cards
• VRMs for motherboards
• Point of load distribution

Procurement Notes

Verify the specific suffix 'QI' against official Alpha & Omega Semiconductor datasheets to confirm pinout and electrical characteristics. Ensure compatibility with 3V logic interfaces and check for RoHS compliance status in current production notices. Confirm package integrity for the 31-QFN form factor prior to integration.

Selection Notes

Select this module for applications requiring high current density and fast transient response. The integrated design minimizes parasitic inductance and EMI. Consider the 60A continuous rating and 2MHz frequency capability when designing thermal management and PCB layout for space-constrained environments.

Part Context

This component belongs to the DrMOS family, designed as a complete power stage solution. It replaces discrete MOSFET and driver combinations, simplifying board layout and improving efficiency in voltage regulation modules.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.