AOZ1353DI-03

Power Distribution Switches, Load Drivers Overview

The AOZ1353DI-03 is a single-channel N-channel power switch and load driver manufactured by Alpha & Omega Semiconductor Inc. It is designed for high-efficiency power distribution in portable electronics. The device features an integrated high-side N-channel MOSFET with a typical on-resistance of 40 milliohms, supporting a maximum continuous output current of 3.5 amperes. It operates within a load voltage range of 3.4 volts to 5.5 volts and utilizes a 12-pin DFN (3x3 mm) package. The component includes comprehensive protection mechanisms such as adjustable current limiting, over-temperature shutdown, and undervoltage lockout.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates a high-side N-channel MOSFET with low on-resistance for efficient power switching
• Includes built-in fault protection against over-current, over-temperature, and short circuits
• Features status flag output for real-time monitoring of operational states
• Supports automatic restart functionality following fault conditions

Power Distribution Switches, Load Drivers Applications

• USB port power switching and protection
• Power distribution in mobile devices
• Battery-powered equipment load management
• Portable consumer electronics power stages

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix designation to ensure correct fault handling configuration, as variants exist with different recovery modes. Confirm that the 12-DFN package dimensions align with the target PCB footprint. Ensure the input voltage supply remains within the specified 3.4V to 5.5V operating window to prevent undervoltage lockout or potential damage during procurement and assembly planning.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when a compact, high-current power switch is required for USB or battery applications. The 40 milliohm on-resistance minimizes power loss compared to standard switches. Consider the 12-DFN package size for space-constrained designs. Verify thermal requirements based on the expected load current and ambient temperature conditions before finalizing the design.

Power Distribution Switches, Load Drivers Part Context

This part belongs to the AOZ1353 series of power switches from Alpha & Omega Semiconductor. It is specifically engineered for Type-C and legacy USB applications requiring robust protection and efficient power delivery. The series integrates control logic and protection circuitry directly with the power FET, simplifying system design compared to discrete solutions.

Power Distribution Switches, Load Drivers Replacement Considerations

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