Microsemi Introduces New Family of Multiple Output DC/DC Controllers
IRVINE, Calif.--(BUSINESS WIRE)--May 21, 2002--
-- Cuts Power Supply Costs by Reducing Components -- Multiphase Controller Includes Low Dropout Regulator -- Targets Multiple-Output Power Supplies Found in Video Cards,
Set-top Boxes, Gaming Consoles, Portable PCs and Computer
Peripherals
Microsemi Corp. (Nasdaq:MSCC - News), a leading manufacturer of power management integrated circuits, today announced that it has introduced the first in a new line of Load Sharing(TM) multiple output integrated circuits.
Designated the LX1671(TM), the new device is a multiphase DC/DC controller for use in multi-output power supplies, video card power supplies, double data rate termination, computer peripherals, set-top boxes, gaming consoles and portable PC processor and I/O supplies.
The LX1671 is designed to reduce system costs by replacing several conventional parts with one LoadSHARE(TM) device. It provides up to four independently regulated outputs from a 3-phase PWM controller including one linear regulator driver. The LX1671 regulates from input voltages ranging from 3V to 12V, with an output voltage capability as low as 0.8 volt.
"We're employing highly integrated designs in our new LoadSHARE controllers to make them versatile and easy to design into a wide range of DC/DC applications," said Kelly Jones, Microsemi Integrated Products general manager. "The LX1671 will help our customers to cut the overall cost of their power supply systems, as well as save precious board space," he added.
Each PWM phase is capable of supplying up to 15A of load current while the integrated linear regulator can supply up to 5A. Two of the constant frequency voltage-mode PWM phases can be configured for either a single bi-phase high current output or two independently regulated outputs, providing broad power supply design flexibility.
In bi-phase operation, the high current output of greater than 30amps can regulate from different voltage supplies by utilizing a patented LoadSHARE forced current-sharing architecture. This architecture achieves accurate load sharing without the use of expensive current sense resistors and without the inaccuracies of MOSFET current sensing techniques.
Each phase incorporates fully programmable power sequencing with integrated soft-start functionality. Additionally, these two phases switch 180 degrees out of phase in order to minimize input capacitor requirements and output voltage ripple.
The LX1671 is available for immediate sampling and delivery in a choice of 38-pin TSSOP or MLPQ surface mount packages, with 10K quantity pricing at $2.01 and $1.78, respectively. Complete technical information is available on the Microsemi Web site, www.Microsemi.com. Samples and evaluation boards 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 manage and regulate power, protect against transient voltage spikes and transmit, receive and amplify signals.
Microsemi products include individual components, as well as complete circuit solutions that enhance customer designs by providing battery optimization, reducing size or protecting circuits. Markets the company serves include mobile connectivity, computer/peripherals, telecommunications, medical, industrial/commercial, space/satellite and military.
More information may be obtained by contacting the company directly or by visiting its Web site at microsemi.com.
"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Any statements set forth in the news release that are not entirely historical and factual in nature are forward-looking statements. For instance, all statements of belief and expectations are forward-looking statements. Forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified. Potential risks and uncertainties include, but are not limited to, such factors as the difficulties regarding the making of estimates and projections, hiring and retention of qualified technical personnel in a competitive labor market, acquiring and integrating new operations or assets, closing or disposing of operations or assets, rapidly changing technology and product obsolescence, the ability to realize cost savings or productivity gains, the ability to improve capacity utilization, potential cost increases, the strength and competitive pricing environment of the marketplace, demand for and acceptance of the company's products, the results of in-process or planned development, marketing and promotional campaigns, changes in demand for products, difficulties foreseeing future demand, effects of limited visibility of future sales, potential non-realization of expected orders or non-realization of backlog, business and economic conditions or adverse changes in current or expected industry conditions, business disruptions, future effects of the tragic events of Sept. 11, customer order preferences, fluctuations in market prices of the company's common stock and availability of additional capital on favorable terms, difficulties in implementing company strategies, environmental matters, litigation, difficulties protecting patents and other proprietary rights, inventory obsolescence. In addition to these factors and any other factors mentioned elsewhere in this news release, the reader should refer as well to the factors, uncertainties or risks identified in the company's most recent Form 10-K filed on Dec. 24, 2001, the Form 10-Q filed on Feb. 13, 2002, and May 10, 2002, and the final prospectus on Form S-3 filed on June 1, 2000, each filed by the company with the Securities and Exchange Commission. The company does not undertake to supplement or correct any information in this release that is or becomes incorrect.
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Contact:
Microsemi Corp., Irvine
David R. Sonksen (financial), 949/221-7101
Cliff Silver (editorial), 949/221-7112 |
