AOZ5313NQI

Overview

The AOZ5313NQI is a high-current, high-performance DrMOS power module manufactured by Alpha & Omega Semiconductor Inc. Designed for synchronous buck converter applications, this integrated half-bridge driver combines a gate driver and power MOSFETs in a compact 31-QFN (5x5) package. It supports input voltages up to 20V and delivers an output current of 65A per channel with a peak current capability of 120A. The device operates within a junction temperature range of -40°C to 150°C and features built-in protection mechanisms including under-voltage lockout and shoot-through prevention.

Feature Summary

• Integrates half-bridge driver and synchronous rectification MOSFETs into a single DrMOS module for simplified design
• Supports high-output current delivery suitable for demanding GPU and CPU power stages
• Includes internal bootstrap circuitry and diode emulation for efficient operation
• Features comprehensive fault protection including under-voltage lockout and shoot-through prevention

Applications

• Graphics Processing Unit (GPU) power delivery systems
• Central Processing Unit (CPU) voltage regulator modules
• High-density synchronous buck converters
• Point-of-load (POL) conversion circuits

Procurement Notes

Verify the specific suffix and revision level against the manufacturer's latest datasheet to ensure compatibility with your design requirements. Confirm that the 31-QFN (5x5) package footprint matches your PCB layout exactly. Check for any recent product change notices or end-of-life announcements from Alpha & Omega Semiconductor before finalizing procurement plans.

Selection Notes

Select this component when a compact solution is required for high-current synchronous buck applications. Ensure the thermal management strategy accounts for the power dissipation characteristics of the 31-QFN package. Verify that the control loop stability is maintained with the integrated driver's timing specifications. Consider the 20V maximum supply voltage limit when designing the input stage.

Part Context

This part belongs to the AOZ5xxx series of DrMOS devices from Alpha & Omega Semiconductor. These modules are engineered to replace discrete gate drivers and MOSFET combinations, reducing board space and improving efficiency. The AOZ5313NQI specifically targets high-performance computing applications requiring robust power delivery in a small form factor.

Replacement Considerations

Check for direct pin-compatible alternatives within the AOZ5313 family or other Alpha & Omega DrMOS solutions with similar current ratings. Verify that any substitute maintains the same 31-QFN (5x5) package dimensions and electrical characteristics to avoid redesigning the PCB layout.