AOZ5611BQI

Overview

The AOZ5611BQI is a high-current, high-efficiency DrMOS power stage manufactured by Alpha & Omega Semiconductor Inc. It integrates a half-bridge driver and synchronous NMOS power switches into a single module. The device supports input voltages up to 20V and delivers continuous output currents of 60A. Designed for compact power solutions, it utilizes a 31-QFN (5x5) package to minimize footprint while maintaining robust thermal performance.

Feature Summary

• Integrates half-bridge driver with synchronous NMOS power switches
• Supports PWM interface for digital control applications
• Includes built-in fault protection mechanisms such as UVLO
• Optimized for high efficiency in synchronous buck converter topologies

Applications

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

Procurement Notes

Verify the specific suffix 'BQI' against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Ensure that the 31-QFN (5x5) package dimensions align with your PCB layout requirements. Confirm RoHS compliance status through the latest environmental declaration provided by Alpha & Omega Semiconductor Inc. before finalizing procurement.

Selection Notes

Select this component when designing space-constrained power stages requiring high current density. The integrated DrMOS design simplifies gate drive circuitry and reduces component count compared to discrete solutions. Evaluate thermal management needs based on the 60A current rating and ensure adequate copper area for heat dissipation in the target application environment.

Part Context

This part belongs to the AOZ56xx series of DrMOS modules from Alpha & Omega Semiconductor. These devices are engineered for modern power management systems where size and efficiency are critical. The series typically includes variants with different current ratings and voltage capabilities, all sharing similar integration levels and packaging standards for modular design flexibility.

Replacement Considerations

Check for AOZ5612BQI or AOZ5618QI within the same product family for alternative current ratings. Verify pin-to-pin compatibility and thermal characteristics before substitution. Consult official cross-reference lists from Alpha & Omega Semiconductor for validated replacements.