AOZ1073AIL_6

Overview

The AOZ1073AIL_6 is a synchronous high-efficiency buck regulator from Alpha & Omega Semiconductor. It operates within an input voltage range of 4.5V to 16V and delivers up to 3A of continuous output current, with the output voltage adjustable down to 0.8V. The device utilizes fixed 500kHz PWM operation and integrates internal switches rated at 85mΩ for the high-side and 30mΩ for the low-side. Packaged in a compact SO-8 format, it supports ambient temperatures from -40°C to +85°C.

Feature Summary

• Integrates synchronous rectification with low-resistance internal high-side and low-side switches
• Includes comprehensive protection mechanisms such as thermal shutdown, short-circuit protection, and overvoltage protection
• Features built-in soft start and pre-bias startup capabilities for stable power sequencing

Applications

• Point-of-load DC/DC conversion
• PCIe graphics cards
• Set-top boxes and DVD drives
• LCD panels and cable modems

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact packaging or temperature grade variations. Ensure compatibility with required input voltage ranges and thermal management solutions for the target application environment before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring a simple, high-efficiency step-down solution with integrated synchronous rectification. Consider the 500kHz switching frequency for balancing component size and efficiency. Verify that the 3A output capability meets the load requirements and that the SO-8 package fits the available PCB space constraints.

Part Context

This part belongs to the EZBuck family of synchronous buck regulators designed for straightforward implementation. It targets portable and consumer electronics where space efficiency and high performance are critical. The integration of control logic and power switches simplifies the design process compared to discrete solutions.

Replacement Considerations

Refer to official datasheets for direct pin-compatible alternatives within the same product family. Cross-reference electrical parameters such as input voltage range, current capacity, and switching frequency to ensure functional equivalence in existing designs.