New Industry Products

FDK Isolated DC-DC Converter Delivers 30A At Regulated 5V Output With Minimal Derating

October 02, 2007 by Jeff Shepard

FDK Corp. introduced a regulated dc-dc converter in the industry-standard quarter brick format that provides 30A (150W) of output current with minimal derating at elevated temperatures. The FPQR48T5R030 is the latest in the FDK Sensei Series of isolated dc/dc converters for Intermediate Bus Architecture (IBA) and Distributed Power Architecture (DPA) in telecommunications, data processing, computing, and storage applications that require a regulated 5V distribution bus.

The FPQR48T5R030 converter operates from a 36 to 75Vdc input and provides a tightly regulated 5Vdc output. It delivers up to 30A with efficiencies in excess of 91%. It has a 2.30" x 1.45" (58.4 x 36.8mm) industry-standard quarter brick footprint and pin-out and a low body profile of 0.402" (10.2mm), particularly suitable for high density card-rack applications.

Features include input under-voltage lockout (UVLO), output over-current protection (OCP), output over-voltage protection (OVP), over-temperature protection (OTP), remote output voltage sense, and output voltage trim using industry-standard trim equations. The FPQR48T5R030 converter meets the basic insulation requirements of EN60950 and features input to output dc isolation of 1500Vdc.

The Sensei Series converters deliver full-rated output current with little derating at high ambient temperatures without the need for heat sinks. With a 48Vdc input, the FPQR48T5R030 converter provides 30A of output current in ambient temperatures up to 75°C, with 400 LFM (2m/s) airflow. This thermal performance results from an electrical, thermal, and packaging design that is optimized for high density circuit card conditions, realized using what FDK describes as its advanced circuit and thermal design techniques.

"This addition to the Sensei Series of isolated dc-dc converters enables FDK to provide both 5V and 12V power distribution solutions for IBA applications," said Dr. Apurba Roy, Executive Advisor, FDK Corp.. "It is part of FDK’s continuing mission to provide on-board power solutions with best-in-class performance in high temperature environments."

All Sensei Series products are RoHS compliant. They are manufactured using FDK’s in-house manufacturing processes and systems in Japan. In quantities of 1,000 pieces, the FPQR48T5R030 converter is priced at $47.00. Samples are available now.