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IR’s Family of CHiL Digital PWM Controllers and Integrated PowIRstage® Solutions Provide Optimized End-to-End Solutions with PMBusTM for Next-Generation Computing Platforms

International Rectifier, IR® (NYSE: IRF), a world leader in power management technology, today introduced its latest generation of highly versatile, PMBus™ enabled, CHiL digital PWM controllers and integrated PowIRstage® solutions that significantly improve efficiency and reduce board space and component count in a variety of mid-range to high-end server, desktop and computing applications.

IR’s new digital controllers meet Intel VR12 and VR12.5 specifications, and support multiphase designs from 1 to 8 phases operating 1 to 2 loops. These digital controllers can be used in combination with a choice of seven new PowIRstage® products to deliver an optimized high-performance end-to-end multiphase solution for CPU and DDR memory applications.

These latest generation CHiL controllers offer enhanced features over the previous generation including significant expansion in the PMBus™ command set, substantial reduction in quiescent current to enable higher peak efficiency, min/max telemetry recording and an improved high-speed phase balance algorithm.

“Our latest generation CHiL digital controller family and PowIRstage® solutions offer a complete optimized, full-featured, high-performance end-to-end solution satisfying the challenging requirements of leading-edge next-generation CPU and DDR memory designs for servers, high-end motherboards and other computing systems. These new solutions incorporate our latest silicon technologies to boost in-circuit efficiencies and offer a substantial upgrade in system-level telemetry and reporting, fault protection and PMBus™ capability,” said Carl Smith, Marketing Director, IR’s Enterprise Power Business Unit.

IR’s latest PowIRstage® solutions integrate a high performance driver, control and synchronous MOSFETs with accurate, temperature compensated, on-chip current sense reporting and provide cycle-by-cycle over-current protection to self-protect against harsh circuit conditions such as inductor saturation events. Temperature sensing, reporting and over-temperature protection are also available in addition to a fault-flag output. These PowIRstage® devices are offered in 6x6mm PQFN packages, rated at 40A, 50A and 60A with over-molded and exposed top options available providing flexibility to achieve optimal thermal design.

More information is available on the International Rectifier website at http://www.irf.com/press-room/press-releases/nr140318

Design Tools

IR offers dedicated demo boards and fully documented reference designs. These CHiL digital power solutions are fully supported by IR’s real-time GUI for design and development, and hardware interface tools to communicate and program the CHiL devices.

Pricing

Pricing for the controller range from US $3.81 each for the IR3584 to US $4.13 each for the IR3580 in 1,000-unit quantities. Pricing for the PowIRstage® devices range from US $3.19 each for the IR3557 to US $4.25 each for the IR3579 in 1,000-unit quantities. Prices are subject to change.

About International Rectifier

International Rectifier (NYSE:IRF) is a world leader in power management technology. IR’s analog and mixed signal ICs, advanced circuit devices, integrated power systems and components enable high performance computing and reduce energy waste from motors, the world’s single largest consumer of electricity. Leading manufacturers of computers, energy efficient appliances, lighting, automobiles, satellites, aircraft and defense systems rely on IR’s power management benchmarks to power their next generation products. For more information, go to www.irf.com.

Trademark Notice

IR®, CHiL and PowIRstage® are registered trademarks of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders.

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