AOZ5332QI

Overview

The AOZ5332QI is a DrMOS power driver module manufactured by Alpha & Omega Semiconductor. It integrates a half-bridge driver and synchronous MOSFETs in a single package, designed for high-efficiency synchronous buck converters. The device features a 31-PowerVFQFN (5x5 mm) surface-mount package. It supports a load voltage range of 2.5V to 25V and operates with a supply voltage between 4.5V and 5.5V. The output current per channel is rated at 50A, with a peak output capability of 120A. It utilizes PWM interface control and functions within an ambient temperature range of -40°C to 125°C.

Feature Summary

• Integrates half-bridge driver and synchronous MOSFETs into a compact DrMOS configuration
• Includes bootstrap circuit and diode emulation for simplified gate drive requirements
• Provides comprehensive fault protection including over-temperature, short-circuit, and under-voltage lockout

Applications

• Synchronous buck converter designs
• Point-of-load (POL) regulation
• High-density power management systems

Procurement Notes

Verify the specific suffix 'QI' against the manufacturer's official datasheet to confirm pinout, thermal pad configuration, and RoHS compliance status. Ensure that the ordering information matches the exact part number variant required for your design, as suffixes may indicate differences in packaging or material composition. Cross-reference the component with the latest revision of the specification document to avoid using obsolete data during procurement.

Selection Notes

Select this component when a compact solution for synchronous rectification is required. The integrated nature of the DrMOS reduces external component count compared to discrete driver and MOSFET combinations. Consider the 50A continuous current rating and 120A peak capability for load transient requirements. Verify that the 4.5V to 5.5V logic supply range aligns with the system's available control voltages.

Part Context

This component belongs to the AOZ53xx series of DrMOS products from Alpha & Omega Semiconductor. These modules are engineered to replace traditional discrete half-bridge solutions, offering improved thermal performance and reduced board space. The AOZ5332QI specifically targets applications requiring moderate current levels with high efficiency and integrated protection features in a small footprint.

Replacement Considerations

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