New Industry Products

Infineon Adds 40V Device in PQFN to its OptiMOS Source-Down Power MOSFET Family

November 02, 2020 by Hailey Stewart

This article highlights Infineon Technology OptiMOS™ 40 V low-voltage power MOSFET to the market.

Contemporary power system designs demand high power density levels and small form factors to maximize system-level performance. Infineon Technologies AG tackles this challenge by focusing on system innovation with enhancements on the component level. Adding to the 25 V device introduced in February, Infineon now brings the OptiMOS™ 40 V low-voltage power MOSFET to the market. It is packaged in the Source-Down (SD) PQFN with a 3.3 x 3.3 mm 2 footprint. The 40 V SD MOSFET primarily addresses SMPS for server, telecom, and OR-ing, as well as battery protection, power tool, and charger applications.


Image courtesy of Infineon Technolog
Image courtesy of Infineon Technology


The SD package features silicon that is being flipped upside down inside of the component. With that, the source potential is connected to the PCB over the thermal pad instead of the drain potential. In the end, this variant can lead to a major reduction of R DS(on) by up to 25 percent compared to the current technology. The thermal resistance between junction to case (R thJC) is also significantly improved compared to the traditional PQFN packages. The SD OptiMOS can withstand high continuous currents of up to 194 A. Additionally, the optimized layout possibilities and the more efficient utilization of the PCB allow for greater design flexibility together with highest performance.



The OptiMOS SD 40 V low-voltage power MOSFET is available in two versions, standard and Center-Gate. The Center-Gate variant is optimized for parallel operation of multiple devices. Both variants in the PQFN 3.3 x 3.3 mm 2 package can be ordered now. More information is available at this link.


About Infineon

Infineon Technologies AG is a world leader in semiconductor solutions that make life easier, safer and greener. Microelectronics from Infineon is the key to a better future. In the 2019 fiscal year (ending 30 September), the Company reported sales of €8.0 billion with about 41,400 employees worldwide. Infineon is listed on the Frankfurt Stock Exchange and in the USA on the over-the-counter market OTCQX International Premier.