CORRECTING and REPLACING maXyz POLs Provide up to 500 watts/in3 From Industry Standard Footprint.

Business Editors/Technology Writers

CORRECTION...by Business Wire

CAMARILLO, Calif.--(BUSINESS WIRE)--March 23, 2004

In BW5347 issued March 23, 2004: Headline of release should read: maXyz POLs Provide up to 500 watts/in3 From Industry Standard Footprint (sted: di/dt's maXyz POLs Provide up to 500 watts/in3 From Industry Standard Footprint)

The corrected release reads:

MAXYZ POLS PROVIDE UP TO 500 WATTS/IN3 FROM INDUSTRY STANDARD FOOTPRINT

Power-One, Inc. (Nasdaq:PWER) today announced the third series of products in their Y Series of Nex(TM) Family non-isolated POL DC/DC converters. The 20A YNC products provide what is believed to be the industry's highest power density, up to 500 watts / in3 (29A / in2), and highest current for this industry-standard package and pinout. The YNC products are available in two versions optimized for nominal 5V and 12V Intermediate Bus Architecture (IBA) bus voltages. These maXyz(TM) IBA compatible products are designed and manufactured by di/dt, a Power-One company.

The Nex(TM) Family combines industry-standard footprints and trim equations with enhanced features and improved electrical and thermal performance. The YNC converters have dimensions of 1.3x0.53x0.314 inch (33x13.5x8 mm). These SMD products provide programmable outputs from 0.75VDC to 5.5VDC, facilitating the use of one part number for multiple applications.

The YNC products provide superior thermal performance. In typical telecom conditions of 70(degree)C and 200 LFM airflow, the 12V input version delivers up to 17A with an output of 3.3VDC. Other features include remote ON/OFF, output voltage adjust pin, remote sense, no minimum load requirements, start-up into pre-biased outputs to facilitate sequencing, input under-voltage lockout, thermal shutdown, and over-current protection.

"We are pleased to announce the 20A converters of the Nex(TM) family, an important addition to the Power-One maXyz(TM) Y-Series," said Dr. Apurba Roy, President of di/dt, a Power-One company. "These products further raise the performance bar for IBA power delivery, and provide our customers a path toward increased functional density in their circuit cards."

In quantities of 1,000 pieces, the YNC products are priced at $16.00. Samples and production are available now. The converters are shipped in tape-and-reel packing to facilitate automatic handling and pick-and-place assembly.

For more information, call our Technical Support line at 866.969.3438, or visit www.power-one.com. Power-One is one of the largest manufacturers of power conversion products in the world and is listed in the S&P 500. Products are sold to telecommunications and Internet service providers and equipment manufacturers. Power-One, with headquarters in Camarillo, CA, has global sales offices and manufacturing and R&D operations in China, Dominican Republic, Ireland, Norway, Slovakia, Switzerland, and the United States.

Power-One products are not authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective divisional president of Power-One, Inc. The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice.

Photos are available at:

http://www.didt.com/MEDIA/YNC12S20high.tif

http://www.didt.com/MEDIA/YNC05S20high.tif