AOZ1231QI-01

Overview

The AOZ1231QI-01 is a synchronous EZBuck regulator designed for 28V input and 4A output applications. It integrates high-side and low-side power switches, an oscillator, error amplifier, and protection circuits into a compact package. The device supports fixed output voltages or adjustable configurations via external resistors. It features current mode control for fast transient response and includes comprehensive protection mechanisms such as over-current, over-voltage, and thermal shutdown to ensure reliable operation in space-constrained designs.

Feature Summary

• Integrates synchronous buck converter with internal power switches
• Supports fixed or adjustable output voltage configurations
• Includes built-in over-current, over-voltage, and thermal protection

Applications

• Point-of-load regulation for embedded systems
• Power supply stages for industrial equipment
• Voltage regulation for communication infrastructure

Procurement Notes

Verify the specific suffix 'QI-01' against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Ensure the component meets required automotive or industrial qualification standards if applicable. Cross-reference the ordering part number with Alpha & Omega Semiconductor documentation to avoid confusion with similar EZBuck variants that may have different switching frequencies or package types.

Selection Notes

Select this component for applications requiring a compact synchronous buck solution with integrated protection. Consider the input voltage range up to 28V and the 4A continuous current capability when sizing passive components. Evaluate the thermal performance requirements based on the expected load conditions and ambient temperature to determine if additional heatsinking is necessary for long-term reliability.

Part Context

Alpha & Omega Semiconductor offers the EZBuck series of synchronous regulators aimed at simplifying power design for portable and industrial electronics. The AOZ1231QI-01 belongs to this family, providing a complete buck converter solution in a small footprint. This series is designed to reduce component count and board space while maintaining high efficiency and robust protection features for modern power management needs.

Replacement Considerations

AOZ1231-01

FAQ

What is the maximum input voltage for the AOZ1231QI-01?

The device is designed to operate with an input voltage up to 28V.

Does the AOZ1231QI-01 include internal protection features?

Yes, it includes over-current protection, over-voltage protection, and thermal shutdown.