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VPT's new DC/DC converters pay attention to the smallest details

Posted: 14 Jun 2005 ?? ?Print Version ?Bookmark and Share

Keywords:vpt? dvch? DC/DC converter?

DC/DC converters deliver 1.5WVPT's new DVCH series of DC/DC converters deliver 1.5W from what's claimed to be the best small-size package available today for use in critical-reliability applications.

"Usually, noise and efficiency are sacrificed for small size, wide input voltage range, and full military operating range," said Michael Bosmann, SVP of sales and marketing for VPT. "Our patented technology enables us to deliver a converter that provides a higher power conversion efficiency and carries an output ripple that is one-sixth the noise of our closest competitortwo performance values that are extremely important to our customers in their system designs."

Designed to withstand the rigors of aircraft and space applications, the single- and dual-output converters, qualified to MIL-PRF-38534, feature small size (0.97-by-0.8-by-0.27 inches), line regulation of 60mV (max), load regulation of 200mV from 50 percent to full load, low output noise (50mV p-p), inherent radiation immunity utilizing the company's proprietary magnetic isolation technology, and no optoisolators. Typical efficiency is 80 percent. These converters include under-voltage lockout circuitry, current-limiting and short-circuit protection, and high tolerance to input transients80V for 1s per MIL-STD-704A. MTBF is typically 841kph.

Single-voltage models, working from a nominal 28V (12V to 50V) input, are available for 3.3-, 5-, 5.2-, 12- and 15V service. Dual-output models provide 5 and 12V (15V available later this year). The converters are rated for operation over -55C to 125C. The device data sheet is available at the company's website.

The DVCH converters, weighing 11g, are priced at $190 per unit in OEM quantities. They're available in custom and radiation hardened versions.

- Vincent Biancomano

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