AOZ1017AI_3

Overview

The AOZ1017AI_3 is a 3A EZBuck synchronous step-down DC-DC regulator manufactured by Alpha & Omega Semiconductor Inc. It integrates high-side and low-side power MOSFETs into a compact SO-8 package, offering a simple solution for point-of-load applications. The device supports an input voltage range of 2.5V to 6V and provides a programmable output voltage from 0.6V to 5.5V via a single external resistor. Operating at a fixed switching frequency of 1MHz, it delivers up to 3A of continuous output current with high efficiency across the load range.

Feature Summary

• Integrated synchronous rectification with internal high-side and low-side MOSFETs
• Fixed 1MHz switching frequency for reduced passive component size
• Programmable output voltage using a single external feedback resistor
• Compact SO-8 surface-mount package design

Applications

• Point-of-load regulation for portable electronics
• Power supply stages for embedded systems
• Battery-powered devices requiring efficient step-down conversion

Procurement Notes

Verify the specific suffix '3' against the manufacturer's official datasheet to confirm packaging details and tape-and-reel specifications. Ensure the ordering part number matches the exact electrical characteristics required for your circuit design. Cross-reference the component marking code on received units with official documentation to prevent counterfeit substitution.

Selection Notes

Select this component when a compact, high-current buck regulator is needed for low-voltage inputs between 2.5V and 6V. The integrated MOSFETs simplify board layout compared to discrete solutions. Consider the 1MHz frequency for balancing efficiency and filter component size. Verify thermal performance requirements given the 3A output capability in the SO-8 package.

Part Context

This part belongs to the EZBuck series from Alpha & Omega Semiconductor, designed for simplicity and high efficiency in small form factors. The series targets applications where space constraints and ease of implementation are critical. The AOZ1017 variant specifically addresses the need for higher current density in consumer and industrial power management scenarios.

Replacement Considerations

Direct pin-to-pin replacements should be verified through official cross-reference lists or manufacturer compatibility guides. Ensure substitute parts match the 3A current rating, 1MHz frequency, and SO-8 package dimensions. Electrical parameters such as switching threshold and protection features must align with original design specifications.