AOZ13937DI-03

Power Distribution Switches, Load Drivers Overview

The AOZ13937DI-03 is a high-performance ideal diode sink switch manufactured by Alpha & Omega Semiconductor Inc. Designed for USB Type-C EPR applications, it supports an input voltage range of 3.4 V to 32 V with a maximum output current of 8 A. The device features a typical on-resistance (RDS(on)) of 20 mΩ and operates within a junction temperature range of -40°C to 125°C. It utilizes a 12-DFN (3x3) surface-mount package and includes integrated protections such as overvoltage, reverse current, and thermal shutdown.

Power Distribution Switches, Load Drivers Feature Summary

• Provides true reverse current blocking to isolate downstream components in power paths.
• Integrates comprehensive fault protection including overvoltage, overcurrent, and thermal shutdown.
• Features programmable soft-start and controlled slew rate to minimize inrush current.
• Supports fast recovery from overvoltage and reverse current fault conditions.

Power Distribution Switches, Load Drivers Applications

• Thunderbolt and USB Type-C PD power switches
• Laptops, ultrabooks, and desktop computers
• Docking stations and dongles
• Power ORing circuits

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix '-03' against official datasheets to confirm the exact fault recovery behavior, as different suffixes indicate distinct operational modes like auto-restart or latch-off. Ensure compatibility with the required 12-DFN footprint and validate that the 32V rating aligns with the target system's maximum operating voltage before finalizing procurement specifications.

Power Distribution Switches, Load Drivers Selection Notes

Select this component for designs requiring robust sink switching capabilities in high-power USB Type-C implementations. The low on-resistance minimizes conduction losses, while the integrated protections simplify board design by reducing external component count. Consider the specific fault handling mode associated with the '-03' suffix relative to system safety requirements.

Power Distribution Switches, Load Drivers Part Context

This part belongs to the AOZ13937 series of ideal diode controllers optimized for automotive and industrial-grade reliability. It complements other Alpha & Omega solutions like the AOZ15333DI for complete Type-C port protection strategies. The series addresses the increasing power demands of modern portable electronics and peripheral devices.

Power Distribution Switches, Load Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical characteristics carefully when considering alternative manufacturers' ideal diode switches.

Power Distribution Switches, Load Drivers FAQ

What is the function of the '-03' suffix in the AOZ13937DI-03?

The suffix indicates the specific fault recovery mode. While '-01' denotes auto-restart and '-02' denotes latch-off, the '-03' variant specifies its unique operational behavior regarding fault handling as defined in the manufacturer's datasheet.

Does the AOZ13937DI-03 support reverse current flow?

No, the device features Ideal Diode True Reverse Current Blocking (IDTRCB), which prevents current from flowing backward from the output to the input, thereby protecting upstream power sources.