AOZ1021AIL

Overview

The AOZ1021AIL is a synchronous buck regulator from Alpha & Omega Semiconductor, part of the EZBuck family. It operates with an input voltage range of 4.5V to 16V and delivers up to 3A continuous output current. The output voltage is adjustable down to 0.8V with 1.5% initial accuracy. Key electrical parameters include a fixed 500kHz PWM switching frequency, 100mΩ internal high-side switch resistance, and 20mΩ low-side switch resistance. The device achieves efficiencies up to 95% and includes integrated protection features such as thermal shutdown, cycle-by-cycle current limit, and short-circuit protection.

Feature Summary

• Synchronous rectification architecture for high efficiency
• Integrated soft start and pre-bias startup capability
• Comprehensive protection against over-temperature and short circuits

Applications

• Point of load DC/DC conversion
• Telecom and networking datacom equipment
• Set top boxes and DVD drives

Procurement Notes

Verify the specific suffix 'AIL' against the manufacturer's official datasheet to confirm package type and temperature rating. Ensure compatibility with design requirements before procurement. Check for RoHS compliance status in the latest documentation.

Selection Notes

Select this component for applications requiring a compact, high-efficiency step-down solution within a 4.5V to 16V input window. The 3A output capacity and SO-8 package make it suitable for space-constrained designs. Evaluate thermal performance under maximum load conditions.

Part Context

This part belongs to the EZBuck series of synchronous buck regulators by Alpha & Omega Semiconductor. These devices are designed for simple implementation and high efficiency in power supply applications. The series typically integrates control logic and power switches into a single small package.

Replacement Considerations

Compatible alternatives include AOZ1021AI and AOZ1022DI-01. Verify pinout and electrical specifications match before substitution.