AOT298L

Single FETs, MOSFETs Overview

The AOT298L is a 100V N-Channel AlphaSGT™ Trench Power MOSFET manufactured by Alpha & Omega Semiconductor Inc. It utilizes advanced trench technology to achieve low on-resistance and gate charge, making it suitable for synchronous rectification in DC/DC and AC/DC converters. The device features a TO-220 package with a continuous drain current of 58A at 25°C case temperature and 33A at 70°C ambient temperature. Its maximum on-state resistance is less than 14.5mΩ at VGS=10V. The component is rated for a junction temperature range of -55°C to 175°C and has been subjected to 100% UIS and Rg testing.

Single FETs, MOSFETs Feature Summary

• Utilizes AlphaSGT™ Trench Power technology for optimized performance
• Features low on-resistance and low gate charge characteristics
• Designed specifically for synchronous rectification applications
• Undergoes 100% Unclamped Inductive Switching (UIS) and Gate Resistance testing

Single FETs, MOSFETs Applications

• Synchronous Rectification in DC/DC Converters
• Synchronous Rectification in AC/DC Converters
• Notebook Adapters
• TV Power Supply Applications

Single FETs, MOSFETs Procurement Notes

Verify the specific ordering suffix when sourcing components, as variations such as AOB298L or AOTF298L correspond to different packages like TO-263 or TO-220F. Confirm that the procurement matches the required thermal management specifications, particularly regarding junction-to-case versus junction-to-ambient resistance values based on the intended PCB design and heatsinking requirements.

Single FETs, MOSFETs Selection Notes

Select this component for high-current switching applications requiring robust avalanche capability and efficient power conversion. Consider the thermal resistance parameters carefully; use junction-to-case data for designs involving external heatsinks and junction-to-ambient data for standard FR-4 board mounting. Ensure the gate drive voltage supports the specified threshold and on-resistance characteristics for optimal efficiency.

Single FETs, MOSFETs Part Context

This part belongs to the AlphaSGT™ family of N-Channel MOSFETs from Alpha & Omega Semiconductor Inc., designed for power management solutions. It shares technological similarities with other devices in the series but is distinctively packaged in TO-220 for through-hole mounting. The product line emphasizes reliability through comprehensive electrical and thermal testing protocols.

Single FETs, MOSFETs Replacement Considerations

Direct substitutes include AOB298L (TO-263 Tape & Reel) and AOTF298L (TO-220F Tube). These variants share identical electrical characteristics but differ in physical packaging and mounting style. Verify pinout compatibility and thermal interface requirements before substitution.

Single FETs, MOSFETs FAQ

What is the maximum junction temperature rating for the AOT298L?

The maximum junction temperature (TJ) and storage temperature range for the AOT298L is -55°C to 175°C.

Is the AOT298L tested for avalanche energy?

Yes, the datasheet confirms that the device undergoes 100% Unclamped Inductive Switching (UIS) testing to ensure reliability under avalanche conditions.

How does the package type affect thermal performance?

The AOT298L uses a TO-220 package with a junction-to-case thermal resistance (RθJC) of 1.5°C/W and a junction-to-ambient resistance (RθJA) of 60°C/W. In contrast, the TO-220F variant (AOTF298L) has a higher RθJC of 4.5°C/W.