Microsemi Introduces 27-Line Regulator for Low Voltage Differential SCSI Applications.

Business Editors/High-Tech Writers

IRVINE, Calif.--(BUSINESS WIRE)--Oct. 27, 2003

-- Provides Correct Reference Voltages and Bias Currents

-- Performance Compliant to Ultra2, Ultra160 and Ultra320

-- Aimed at Server, Workstation, Data Storage Markets

Microsemi Corp. (Nasdaq:MSCC) a leading manufacturer of analog and mixed signal integrated circuits, announced today that its Integrated Products Group has introduced a new 27-line source/sink regulator designed to provide correct reference voltages and bias currents for low voltage differential SCSI applications.

Designated the LX5261(TM), the new regulator is compliant with SCSI SPI-2 (Ultra2), SPI-3 (Ultra 160), and SPI-4 (Ultra320) specification standards used in high speed data transmission applications including LVD termination, terminator cable assemblies, servers, workstations and RAID data storage equipment.

"Our LX5261 provides a cost competitive pin-for-pin alternative to leading regulators currently available in this market," said Paul Pickle, marketing vice president at Microsemi's Integrated Products Group.

The LX5261 provides two independent 1.75V and 0.75V fixed regulated outputs, each capable of sourcing/sinking 200mA, plus a buffered 1.3V output for DIFSENS signaling. On-chip trimming of the internal voltage enables precise output voltages, typically +/- 1% of its specified value. Thermal shutdown and current limiting are also integrated on chip.

The LX5261 is available in an industry standard 16-pin SOIC plastic package, priced at $0.94 in 10K quantities. Samples and production quantities are available immediately.

Complete technical information is available on the Microsemi Web site, www.Microsemi.com. Samples can be ordered through this site, or from Microsemi sales representatives and franchised distributors.

About Microsemi

Microsemi is a leading designer, manufacturer and marketer of analog, mixed-signal and discrete semiconductors. The company's semiconductors typically manage and control or regulate power, protect against transient voltage spikes and transmit, receive and amplify signals.

Microsemi's products include individual components as well as complete circuit solutions that enhance customer designs by improving reliability, battery optimization, reducing size or protecting circuits. Markets the company serves include mobile connectivity, computer/peripherals, datacom, medical, industrial, automotive, digital media, space/satellite and military.

More information may be obtained by contacting the company directly or by visiting its Web site at http://www.microsemi.com.

Please Read the Following Factors That Can Materially Affect Microsemi's Future Results.

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