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TOLT Package Thermally Enhances MOSFET for E-Scooters and LEVs

Sept. 15, 2025

Magnachip’s TOLT-packaged 80-V MOSFET helps improve thermal management and power efficiency for motor-control systems in e-scooters and light electric vehicles.

Lee Goldberg

Related To:

Electronic Design

The new 80-V MXT MV MOSFET, dubbed the MDLT080N017RH, from Magnachip Semiconductor features a TOLT (TO-leaded top-side cooling) package that offers improved thermal management.

Unlike conventional TOLL (TO-leadless) packages that dissipate heat through the bottom, the TOLT package is engineered to release heat directly from the top via a mounted metal heatsink. Its reduced thermal resistance between the junction and the external environment suits it for thermally demanding applications, such as e-scooters and light electric vehicles (LEVs).

Simulations and tests conducted by Magnachip demonstrated that the new TOLT package solution achieved an average 22% reduction in junction temperature compared to using standard TOLL packages. Designers can use the TOLT package’s high power density and efficient thermal flow to create compact, lightweight, cool-running designs that enjoy longer lifespans and higher reliability.

Visit Power Solutions > MXT MOSFETs > 80V for additional information.

About the Author

Lee Goldberg | Contributing Editor

Lee Goldberg is a self-identified “Recovering Engineer,” Maker/Hacker, Green-Tech Maven, Aviator, Gadfly, and Geek Dad. He spent the first 18 years of his career helping design microprocessors, embedded systems, renewable energy applications, and the occasional interplanetary spacecraft. After trading his ‘scope and soldering iron for a keyboard and a second career as a tech journalist, he’s spent the next two decades at several print and online engineering publications.

Lee’s current focus is power electronics, especially the technologies involved with energy efficiency, energy management, and renewable energy. This dovetails with his coverage of sustainable technologies and various environmental and social issues within the engineering community that he began in 1996. Lee also covers 3D printers, open-source hardware, and other Maker/Hacker technologies.

Lee holds a BSEE in Electrical Engineering from Thomas Edison College, and participated in a colloquium on technology, society, and the environment at Goddard College’s Institute for Social Ecology. His book, “Green Electronics/Green Bottom Line - A Commonsense Guide To Environmentally Responsible Engineering and Management,” was published by Newnes Press.

Lee, his wife Catherine, and his daughter Anwyn currently reside in the outskirts of Princeton N.J., where they masquerade as a typical suburban family.

Lee also writes the regular PowerBites series.