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Boost regulators target TV tuners, broadband apps

Posted: 23 Dec 2008 ?? ?Print Version ?Bookmark and Share

Keywords:boost regulator? TV tuner? broadband application?

Micrel Inc. has launched the MIC2605 and MIC2606 boost regulators operating at 1.2MHz and 2MHz, respectively.

Both supplying up to 0.5A switch current, the devices complement Micrel's recently introduced MIC2601/2 family and are designed for TV-tuners, broadband communications, TFT-LCD bias supplies, positive output regulators, SEPIC converters, DSL applications and local boost regulators.

The MIC2605/6 are wide-input range (4.5V to 20V) integrated switch and Schottky diode boost regulators with output voltage as high as 40V and suit multiple applications. The integrated 0.5A switch and Schottky diode bring several key benefits to the designer including high power density and low external component count, as well as a low BOM cost. In addition to being easy to use, the devices offer up to 2MHz pulse-width modulation frequency and feature high efficiency. Enhanced stability is provided from the use of a small ceramic capacitor, which contributes to a low external component count and associated BOM cost.

"Micrel's latest boost regulators are ideally suited to meet today's space-sensitive applications by integrating the power switch and the Schottky diode in the IC," noted John T. Lee, director of non portable power, Micrel. "These are high-power density boost regulators offering 0.5Amps of switch current and running at 1.2 and 2MHz. Our customized processes and novel design features enable us to offer best-in-class boost regulator solutions to our customers."

The solutions come in a small footprint, reliable Pb-free 2mm x 2mm MLF-8 package. The ICs are currently available in volume quantities, with pricing starting at $0.98 for 1K quantities. Samples can now be ordered on line at Micrel's Website at http://www.micrel.com/ProductList.do.





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