AOZ1073AIL_3

Overview

The AOZ1073AIL is a synchronous high-efficiency buck regulator from Alpha & Omega Semiconductor. It operates within a 4.5V to 16V input voltage range and delivers up to 3A of continuous output current, with the output voltage adjustable down to 0.8V. The device features internal soft start, cycle-by-cycle current limit, thermal shutdown, and overvoltage protection. It utilizes fixed 500kHz PWM operation and includes an 85mΩ high-side switch alongside a 30mΩ low-side switch for efficient synchronous rectification.

Feature Summary

• Synchronous rectification architecture with integrated high-side and low-side switches
• Fixed 500kHz pulse-width modulation switching frequency
• Comprehensive protection mechanisms including thermal shutdown and short-circuit protection

Applications

• Point-of-load DC/DC conversion
• PCIe graphics cards
• Set-top boxes
• LCD panels
• Telecom and networking equipment

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact electrical tolerances and package variants. Ensure that the ordering information matches the required ambient temperature rating and pin configuration. Cross-reference the part number with the latest datasheet revision to avoid discrepancies in specifications or recommended operating conditions.

Selection Notes

Select this component for applications requiring compact power solutions with high efficiency. The SO-8 package suits space-constrained designs. Evaluate the thermal performance relative to the expected load current and ambient conditions. Confirm that the input voltage range aligns with the system power supply rails before integration into the circuit design.

Part Context

This part belongs to the EZBuck series of simple-to-use synchronous buck regulators. It is designed for consumer electronics and industrial applications where size and efficiency are critical. The device integrates control logic and power switches into a single small footprint, simplifying the bill of materials and reducing layout complexity compared to discrete solutions.

Replacement Considerations

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