AOZ3103DI

Voltage Regulators - DC DC Switching Regulators Overview

The AOZ3103DI is a 3A synchronous EZBuck regulator manufactured by Alpha & Omega Semiconductor Inc. It integrates high-side and low-side power MOSFETs into a compact package, designed for efficient step-down voltage conversion. The device operates with an input voltage range supporting various standard bus voltages and delivers a regulated output current up to 3A. Key electrical characteristics include a switching frequency of 1.25MHz, which allows for the use of small external inductors and capacitors. The component features adjustable output voltage via external resistors and includes comprehensive protection mechanisms such as over-current, over-temperature, and under-voltage lockout.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification with internal high-side and low-side MOSFETs for high efficiency
• Fixed 1.25MHz switching frequency enables compact passive component selection
• Includes built-in protection against over-current, over-temperature, and under-voltage conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load (POL) regulation for industrial equipment
• Power supply stages for consumer electronics and computing devices
• Telecommunications infrastructure bias supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'DI' corresponds to the required tape-and-reel packaging configuration, as packaging variations may exist within the product family. Confirm that the selected variant meets the necessary RoHS compliance standards for your region. Ensure the ordering documentation explicitly references the full part number to avoid confusion with non-integrated or differently packaged equivalents from the same manufacturer series.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact, fixed-frequency synchronous buck solution is required for currents up to 3A. The 1.25MHz frequency is optimal for minimizing board space while maintaining reasonable efficiency. Consider thermal management requirements based on the expected load current and ambient temperature, as the integrated MOSFETs dissipate heat directly through the package leads and exposed pad.

Voltage Regulators - DC DC Switching Regulators Part Context

The AOZ3103 belongs to Alpha & Omega Semiconductor's EZBuck family of synchronous regulators. This series is characterized by simplified design implementation due to the integration of control logic and power switches. The DI suffix typically denotes a specific surface-mount package variant, distinguishing it from other pinouts or packaging styles available in the broader AOZ31xx lineup.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.