AOZ1284PI-1_2

Overview

The AOZ1284PI is a synchronous buck regulator IC from the EZBuck series by Alpha & Omega Semiconductor. It operates with an input voltage range of 3V to 36V and delivers up to 4A of continuous output current. The output voltage is adjustable from 0.8V to 30.6V. The device supports switching frequencies between 200kHz and 1MHz. It is housed in an 8-SOIC package with an exposed pad (8-SO-EP) for thermal management.

Feature Summary

• Integrates high-side N-channel power MOSFET for efficient step-down conversion
• Features adjustable switching frequency via external resistor
• Includes programmable soft-start time controlled by external capacitor

Applications

• Point-of-load regulation for industrial equipment
• Power supply stages for consumer electronics
• Battery-powered devices requiring efficient voltage stepping

Procurement Notes

Verify the exact suffix against manufacturer documentation, as standard listings typically use AOZ1284PI. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the ordering part number matches the specific tape and reel configuration required for your assembly process.

Selection Notes

Select this component when a single-output adjustable buck converter is needed with up to 4A capacity. It is suitable for designs requiring wide input voltage ranges up to 36V. Consider the 8-SO-EP package for its balance of pin count and thermal dissipation capabilities in surface-mount applications.

Part Context

This part belongs to the EZBuck family of simple buck regulators. It shares architectural similarities with the AOZ1283 but offers higher output current capability. The series is designed for ease of use with minimal external components while maintaining high efficiency across various load conditions.

Replacement Considerations

The AOZ1283PI is a related part within the same product line offering 2.5A output current. Verify if the lower current rating meets application requirements before substitution.