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International Rectifier Introduces iPOWIR Synchronous Buck Converter Building Block Rated for 40A Continuous Output

EL SEGUNDO, Calif. - International Rectifier, IR® (NYSE: IRF), a world leader in power management technology, today introduced the iPOWIR™ iP2003A, a fully-optimized power "building block" solution for high current, multiphase synchronous buck converters with a 3V to 13.2V input voltage range. The new building block is designed specifically for low voltage power rails in servers, desktops and data communication systems.

As part of the iPOWIR family, the iP2003A integrates silicon and passive components into a single, compact land grid array (LGA) package. The integrated silicon includes a synchronous gate driver, high side and low side power MOSFETs, and a synchronous Schottky rectifier for reduced deadtime losses. The device is capable of 1MHz operation with an output current rating of 40A continuous with no de-rating up to a 100°C case temperature.


"Unlike standard discrete solutions, the iP2003A enables 1MHz operation which dramatically improves transient performance, saves board area and reduces system cost by enabling the use of a smaller output filter," said Faisal Ahmad, Marketing Manager for DC-DC Computing Products at International Rectifier.

Together with a standard multiphase PWM controller, a four phase converter using four iP2003A devices can deliver 160A output current with a 55% board space savings compared to an equivalent solution using thermally-enhanced SO-8 power MOSFETs.


In addition, since the iP2003A integrates the critical power and passive components required for each phase of the converter, design complexity and layout time are greatly reduced versus a standard discrete solution. An external PWM controller, input plus output capacitors, and output inductors are the only additional components required to realize a complete solution.

The iP2003A uses a patent-pending package technology which enables dual-sided cooling capability via very low junction-to-case and junction-to-PCB thermal resistance for maximum current handling.

Jueves, 16 Junio, 2005 - 07:41
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