Senpai DC/DC Converter Deliver up to 600W/cubic inch

May 17, 2006

Senpai Series
Senpai Series (output: 8A)

San Jose, CA - May 17, 2006 - FDK Corporation (Tokyo Stock Exchange 1st Section: Code 6955) announced the latest products in their Senpai Series of non-isolated point of load (POL) converters. Delivering 8 Amperes (A) in the smallest industry-standard footprints, the FPMR12TR7508NA and the FPMR12SR7508NA converters provide 60% higher output current than other available POL converters in the same input voltage range. The power density of up to 600Watts/cubic inch sets a new standard for power delivery in this footprint and pin-out. These dc/dc converters are designed for Intermediate Bus Architecture (IBA) and Distributed Power Architecture (DPA) applications that require high efficiency, tight regulation, and high reliability in elevated temperature environments with low airflow.

The FPMR12TR7508NA converter is offered in a 0.9 x 0.4 x 0.195 inch (22.9 x 10.2 x 4.95mm) SIP package, and the FPMR12SR7508NA converter is offered in a 0.8 x 0.45 x 0.211 inch (20.3 x 11.4 x 5.35mm) SMD package. They operate from a wide input voltage range of 6.0 Volts - 14 Volts (V) DC, and provide programmable and fixed output voltages in the range of 0.75V - 5.5V DC. Both products feature remote ON/OFF, over-current and over-temperature protection, and output voltage adjust, and are compatible with standard trim equations.

These Senpai Series converters deliver full-rated output current, with little or no derating, at high ambient temperatures, with minimal airflow. Under natural convection cooling, the FPMR12TR7508NA and the FPMR12SR7508NA provide the full-rated current of 8A in ambient temperatures up to 85 degrees Celsius and 70 degrees Celsius, respectively. This best-in-class thermal performance results from electrical, thermal, and packaging design that is optimized for high density circuit card conditions.

"These latest additions to the Senpai Series reflect our ongoing commitment to providing high performance, high quality, and cost effective dc/dc converter products to the marketplace," said Katsuya Fujii, president and CEO of FDK America, Inc. "By reducing the space needed for on-board power conversion, these converters will allow our customers to enhance the performance and functional density of their circuit cards and systems." 

"The 8A converters of the Senpai Series set new standards for point of load power delivery," said Dr. Apurba Roy, founder and former CEO of di/dt, Inc. "They provide significantly higher output power than other POL converters in these standard footprints, are able to operate with no derating in high temperature and low airflow environments, are manufactured in Japan to FDK's high quality standards, and yet are extremely cost competitive."

All Senpai Series products are RoHS compliant. They are manufactured using FDK's state-of-the-art in-house manufacturing processes and systems. In quantities of 1,000 pieces, the FPMR12TR7508NA and the FPMR12SR7508NA converters are priced at $8.00. Samples are available now.

For more information call 408-432-8331, or visit our website at

FDK America, Inc. FDK Electronics GmbH
Tekeo Aridomi Katsutoshi Muramatsu
E-mail: E-mail:
TEL: +1-(408)432-8331 TEL: +49-(0)211-537-464-0

Andrea Roberts Yukihiro Ota
PO Box 501528, San Diego, CA  92150 E-mail
Phone: 858-451-8666 TEL: +81-3-5473-4674
Fax: 858-683-2083


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