N@N

Micrel: Micrel Derails High Costs in Multiple Rail Applications With New Family of Dual Non-Synchronous PWM Buck Regulators

^{Published on 2009-01-22 04:35:26, Last Modified on 2009-01-22 04:36:20 - Market Wire}
 

SAN JOSE, CA--(Marketwire - January 22, 2009) - Micrel Inc., (NASDAQ: [ MCRL ]), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today rolled out a new family of dual Non-Synchronous PWM buck regulators. Operating at 2 MHz and 4 MHz, with a maximum load current of 2Amps per channel, the [ MIC4742 ] (2MHz) and [ MIC4744 ] (4MHz) are the latest additions to the popular low-voltage family of small footprint, non-synchronous buck regulators. The ICs address the designer's need for a dual regulator solution for the popular 5 and 3.3V buses, as well as the need for smaller footprint and substantial cost savings. The chips target applications such as wired and wireless broadband communication equipments, printers, HD set top boxes, computing peripherals and low power FPGAs -- all applications where total solution cost is a critical design consideration. The [ MIC4742 ] and [ MIC4744 ] are available in volume quantities, with pricing starting at $2.29 and $2.70 respectively, for 1K units. Samples can now be ordered on Micrel's web site at: [ http://www.micrel.com/ProductList.do ].

"Overall system cost continues to be forefront in the minds of designers, particularly in multiple-rail applications," noted Andy Cowell, vice president analog marketing, Micrel. "The independently-controlled dual channel [ MIC4742 ] and [ MIC4744 ]allows customers to address multiple-rail step-down requirements in the most cost-effective manner. High frequency operation, combined with small footprint and low BOM cost, make the devices ideal for today's growing broadband applications."

The [ MIC4742 ] and [ MIC4744 ] feature ultra-fast operation and a proprietary internal compensation which allows for ultra-fast transient response. Further, the high PWM frequency of operation allows the use of the smallest and most cost-effective LC components. Each channel provides up to 2A of output current, while designers can realize more than 92 percent efficiency. The output voltage can be adjusted down to 0.6V and these devices can operate with a maximum duty cycle of 100 percent for use in low dropout conditions. Both [ MIC4742 ] and [ MIC4744 ] are available in the highly reliable exposed pad 16-pin 3mm x 3mm MLF® and thermally-enhanced TSSOP-16 packages.

About Micrel, Inc.

Micrel Inc., is a leading global manufacturer of IC solutions for the worldwide analog, Ethernet and high bandwidth markets. The Company's products include advanced mixed-signal, analog and power semiconductors; high performance communication, clock management, Ethernet switch and physical layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products. Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe and Asia. In addition, the Company maintains an extensive network of distributors and reps worldwide. Web: [ http://www.micrel.com ].

Note: MLF is a registered trademark of Amkor Technology.