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Fairchild Semiconductor’s New Mid-Voltage MOSFETs Optimize Power Utilization in a Space-Saving Package

Many end applications – such as IP phones, motor control circuits, active clamp switches and load switches – need to offer higher energy efficiency in a smaller footprint in order to meet manufacturers’ demands. Fairchild Semiconductor developed the FDMC86xxxP series of P-channel PowerTrench® MOSFETs to reduce footprint while achieving superior switching speed and power consumption.

The series includes the FDMC86261P 150 V and the FDMC86139P 100 V P-channel MOSFETs. When compared to competitive devices, these P-channel MOSFETs provide an improved switching performance figure of merit (FOM) 67 percent better than the best competitor part. Additionally, conduction losses are improved by 46 percent and switching losses are improved by 38 percent. This allows designers to shrink the footprint and improve overall system performance.

Devices in the series are packaged in a 3 mm x 3 mm MLP package, versus competitor solutions that are in a 5 mm x 6 mm package, saving board space. Additionally, the FDMC86xxxP series addresses the customers need for lower thermal characteristics, dissipating less power for higher energy efficiency. The devices also feature the lowest RDS(ON) available in its footprint.

“Legacy products are known to have high power losses making them an inefficient solution in today’s power supply and motor control circuits,” Mike Speed, Low Voltage Product Marketing Director at Fairchild, said. “By switching to the FDMC86xxxP series, customers can reduce power dissipation by up to 50 percent in their applications, improving overall system performance, which reduces energy consumption in their end product, helping to conserve global resources.”

Key Features:

  • Very low RDS(ON) mid-voltage P-channel silicon technology optimized for low Qg
  • Optimized for fast switching applications as well as load switch applications
  • 100 percent UIL® tested
  • RoHS compliant

By understanding the demands for higher current DC-DC power supplies in smaller footprints, for space constrained applications, as well as our customers and the markets they serve, Fairchild can tailor its unique combination of functional, process and packaging innovation into energy efficient solutions that make a difference in electronic designs.

Price: in 1,000 quantity pieces

FDMC86261P: US $0.80

FDMC86139P: US $0.68

Availability: Samples available upon request

Delivery: 8-10 weeks ARO

Contact Information:

To contact Fairchild Semiconductor about this product, please go to:

For information on other products, design tools and sales contacts, please visit:

Note to Editor: For a datasheet in PDF format, please go to:

About Fairchild Semiconductor:

Fairchild Semiconductor (NASDAQ: FCS) – global presence, local support, smart ideas. Fairchild delivers energy-efficient, easy-to-use and value-added semiconductor solutions for power and mobile designs. We help our customers differentiate their products and solve difficult technical challenges with our expertise in power and analog and mixed signal products. Please contact us on the web at

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