AOZ5312UQI

Overview

The AOZ5312UQI is a DrMOS power stage integrating a half-bridge driver and synchronous MOSFETs for DC-DC applications. It supports input voltages from 2.5V to 20V with a continuous output current of 60A per channel and peak currents up to 120A. The device operates on a 4.5V to 5.5V supply voltage at a switching frequency of 800kHz. It features analog and PWM dimming capabilities, housed in a 31-QFN (5x5) package.

Feature Summary

• Integrates half-bridge driver and synchronous rectification in a single DrMOS module
• Supports both analog and PWM control interfaces for flexible regulation
• Includes bootstrap circuitry and diode emulation for simplified design
• Provides comprehensive fault protection including over-temperature and UVLO

Applications

• Synchronous buck converters
• Point-of-load (POL) regulation
• High-density power stages

Procurement Notes

Verify the specific suffix UQI against official Alpha & Omega Semiconductor documentation to confirm pinout and thermal pad configuration. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Check for any product change notices or end-of-life announcements that may affect long-term availability.

Selection Notes

Select this component for designs requiring high current density in a compact footprint. Ensure the PCB layout accommodates the 31-QFN package thermal requirements. Verify that the control interface matches the system's PWM or analog signal standards. Consider the 20V maximum load voltage limit when designing the power stage.

Part Context

This part belongs to the AOZ53xx series of DrMOS devices from Alpha & Omega Semiconductor. These components are designed to simplify power supply design by integrating drivers and power switches. The series targets high-efficiency, high-current applications where space constraints are critical.

Replacement Considerations

Check for direct substitutes within the AOZ53xx family, such as AOZ5317UQI, ensuring current ratings and package compatibility match. Verify functional equivalence before substitution.