SOURCE: Micrel


February 22, 2010 07:12 ET

Micrel Dramatically Plummets Costs in Multiple Rail Consumer Applications With New Dual Non-Synchronous PWM Buck Regulator

SAN JOSE, CA--(Marketwire - February 22, 2010) - Micrel Inc., (NASDAQ: MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today introduced the MIC4782, a new dual non-synchronous PWM buck regulator targeting consumer applications. Operating at 1.8 MHz, with a maximum load current of 2A per channel, the MIC4782 is the latest addition to the popular low-voltage family of small footprint, non-synchronous buck regulators. The IC addresses the designer's need for a low-cost dual regulator solution for the popular 5V and 3.3V rails in consumer applications. The device targets cost sensitive consumer 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 MIC4782 is available in volume quantities, with pricing starting at $1.31 for 1K units.

"Overall system cost continues to be forefront in the minds of designers, particularly in multiple-rail consumer applications," noted Andrew Cowell, vice president of analog marketing, Micrel. "The independently-controlled dual channel MIC4782 allows customers to address multiple-rail step-down requirements in a cost-effective manner. The integrated high-side FET, one each per channel, along with the smaller footprint and low BOM cost, make the device ideal for today's growing consumer applications."

The MIC4782 features 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 the device can operate with a maximum duty cycle of 100 percent for use in low dropout conditions. The MIC4782 is available in a highly reliable exposed pad 16-pin 3mm x 3mm MLF® package.

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:

Note: MLF is a registered trademark of Amkor Technology.

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