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Exar Releases Family of USB 3.0 Power Distribution Switches

Single and Dual-channel 1A Switches Provide USB 3.0 Performance and Highly Accurate (8%) Programmable Current Limit Protection for USB Hubs and Generic Power Distribution Ports


News provided by

Exar Corporation

Jun 20, 2011, 04:15 ET

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FREMONT, Calif., June 20, 2011 /PRNewswire/ -- Exar Corporation (Nasdaq:EXAR) unveiled today the XRP252x series of two single and two dual-channel power distribution switches supporting the latest USB 3.0 and all earlier USB specifications. The XRP2525 and XRP2526 devices are optimized for V(BUS) power distribution applications with a guaranteed continuous 900mA per channel current capability, controlled rise and fall time and enhanced port protection.  The XRP2527 and XRP2528, with continuous current ratings of 1A per channel accept input voltages as low as 1.8V and are perfectly suited for generic power distribution applications. The XRP2527 and XRP2528 also provide enhanced power port protection by an externally programmable current limit providing better than 8% accuracy at full current range.

"With USB 3.0 level of performance becoming the de facto standard in USB peripherals, these new devices open a new and growing market to Exar," said Eric Pittana, director of marketing, Power Product Line. "This is not only driven by the need for higher data transfer rate but also by the increased output power required on these USB ports. The XRP252x series enables end equipment to handle the higher load switching while providing enhanced protection for hubs and peripherals."

Key Product Features

With a capability of up to 1A continuous current per channel, the XRP252x series of power distribution switches features independent port enables, independent 10ms filtered error flag signals, controlled start-up time in hot-plug events, short circuit protection and a precision current limit in the XRP2527 and XRP2528.  Additionally, the power protection scheme includes under voltage lockout, reverse output voltage blocking and thermal shutdown. These devices are offered in a single or dual channel configuration and accept a wide input voltage range of 1.75V to 5.5V suitable to operate from industry standard 1.8V, 3.3V and 5V power rails.

Power Management Products

Highly reliable, accurate, power management is a critical part of any technology system. Exar has a broad array of high-performance and industry-proven power management solutions including handset and lighting controls, power conversion, and standard linear devices.

Prices, Packages, Availability and Additional Information

The XRP2525 and XRP2526 are available now in volume quantities and offered in a RoHS compliant, "green" halogen free 8-pin SOIC package. Pricing starts respectively at $0.33 and $0.39 for 1K units.

The XRP2527 and XRP2528 are available now in volume quantities and offered in a RoHS compliant, "green" halogen free 8-pin DFN and 10-pin thin DFN packages with pricing starting respectively at $0.39 and $0.54 for 1K units.

Additional information on the XRP252x series can be found at:
http://www.exar.com/Common/Content/ProductDetails.aspx?ID=XRP2525
http://www.exar.com/Common/Content/ProductDetails.aspx?ID=XRP2526
http://www.exar.com/Common/Content/ProductDetails.aspx?ID=XRP2527
http://www.exar.com/Common/Content/ProductDetails.aspx?ID=XRP2528

Additional information on Exar's other power distribution switches can be found at http://www.exar.com/common/content/Product.aspx?Parent=25

About Exar

Exar Corporation delivers highly differentiated silicon, software and subsystem solutions for data communication, storage, consumer and industrial applications. For over 40 years, Exar's comprehensive knowledge of end-user markets along with the underlying analog, mixed signal and digital technology has enabled innovative solutions that meet the needs of the evolving connected world. Exar's product portfolio includes power management and interface components, communications products, storage optimization solutions, network security and applied service processors. Exar has locations worldwide providing real-time customer support to drive rapid product development. For more information about Exar, visit: www.exar.com.

SOURCE Exar Corporation

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