Semiconductors and Components

ST’s New MOSFETs Offer Improved Efficiency for Power Supplies

28 August 2015

STMicroelectronics Inc. has introduced a new family of MOSFETs that offer a high level of power efficiency in power suppliers for servers, laptops, telecom and consumer applications.

The expansion of ST’s MDmesh M2 series allows designers the ability to create switching power conversion solutions that are lighter and more compact to reach stringent energy-efficiency targets, ST says. The 600V devices combine ST’s strip layout with an improved vertical structure and an optimized diffusion process that allows for very low ON-resistance and the lowest available turn-off switching losses, the company says.

The evolution of ST's MDmesh power MOSFETS. Source: ST.The evolution of ST's MDmesh power MOSFETS. Source: ST.The power MOSFETs work with both hard- and soft-switching topologies and work especially well under light-load conditions. The devices offer a very low gate charge as well as a 20% reduction in turn-off energy (Eoff), which results in a reduction by the same percentage the turn-off switching losses in hard-switching converters, ST says.

The MOSFETs are available now in production priced at $1.50 in 1,000 unit quantities.

Questions or comments on this story? Contact engineering360editors@ihs.com

Related links:

www.ST.com

IHS Semiconductors & Components

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