AOZ1269QI-02_3

Overview

The AOZ1269QI-02_3 is a synchronous step-down DC/DC switching voltage regulator from the EZBuck series by Alpha & Omega Semiconductor. It operates with an input voltage range of 2.7V to 28V and delivers up to 12A of output current. The device features adjustable output voltage configuration and utilizes a 23-terminal QFN surface-mount package. Designed for high efficiency, it integrates internal power switches and control logic for compact power management solutions.

Feature Summary

• Synchronous buck topology for enhanced conversion efficiency
• Integrated EZBuck controller with internal power MOSFETs
• Wide input voltage tolerance suitable for various supply rails
• Adjustable output voltage capability for flexible design

Applications

• Point-of-load regulation in industrial equipment
• Power supplies for embedded systems and DSP controllers
• Battery-powered devices requiring efficient step-down conversion
• Telecommunications infrastructure power distribution

Procurement Notes

Verify the exact suffix _3 against manufacturer documentation to confirm pinout and thermal specifications. Confirm RoHS compliance status as per the latest datasheet revision. Ensure the 23-QFN package dimensions match your PCB footprint requirements. Check for any recent product change notices that may affect availability or parameters.

Selection Notes

Select this component when a compact, high-current synchronous buck solution is required within a 28V input limit. The integrated nature reduces external component count compared to discrete designs. Consider thermal performance in the QFN package for high-duty cycle applications. Verify that the adjustable output range meets the specific load voltage requirements of the target circuit.

Part Context

This part belongs to the AOZ1269 family of EZBuck regulators, designed for space-constrained applications. It serves as a power management IC replacing older asynchronous converters. The 23-QFN package allows for dense PCB layouts. It is distinct from linear regulators due to its switching architecture and higher efficiency at moderate loads.

Replacement Considerations

Check for direct pin-compatible alternatives within the same EZBuck series. Verify if newer revisions offer improved thermal characteristics or updated control features. Ensure substitute parts maintain the 12A current rating and 28V maximum input voltage specification.