AOZ1073AIL-3#A

Overview

The AOZ1073AIL-3#A is a synchronous high-efficiency buck regulator manufactured by Alpha & Omega Semiconductor. It operates within an input voltage range of 4.5V to 16V and delivers up to 3A of continuous output current. The device features an adjustable output voltage down to 0.8V and utilizes a fixed 500kHz PWM switching frequency. Integrated protection mechanisms include cycle-by-cycle current limit, thermal shutdown, and output overvoltage protection. The component is housed in a compact SO-8 package and is rated for operation across an ambient temperature range of -40°C to +85°C.

Feature Summary

• Synchronous rectification with integrated low internal resistance switches
• High efficiency performance up to 95% under typical operating conditions
• Integrated soft start functionality to manage inrush currents
• Comprehensive protection suite 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 against official manufacturer documentation to confirm pinout compatibility and electrical tolerances. Ensure that the selected variant matches the required output voltage configuration and package type for your design. Cross-reference datasheet revisions to guarantee consistency with existing production components.

Selection Notes

Select this regulator for applications requiring a simple, high-efficiency step-down solution from a 4.5V to 16V source. The fixed 500kHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the thermal performance of the SO-8 package when designing for maximum load currents.

Part Context

This component belongs to the EZBuck family of synchronous buck regulators designed for ease of use and high efficiency. The series targets portable and industrial electronics where space constraints and power consumption are critical factors. The AOZ1073 variant specifically addresses the need for higher current delivery in compact form factors.

Replacement Considerations

Direct substitutes may include other 3A synchronous buck regulators from Alpha & Omega or compatible vendors such as Vishay Siliconix, provided pinouts and electrical specifications align.