Micrel's HyperLight LoadTM Technology Enables Lightning Fast, Minuscule Solutions For Handheld Systems

Micrel's HyperLight LoadTM Technology Enables Lightning Fast, Minuscule Solutions For Handheld Systems

San Jose, Calif., Aug. 28, 2008 — Micrel Inc., (Nasdaq:MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today launched the MIC23030 and MIC23031, the newest additions to the HyperLight LoadTM family of synchronous step-down regulators. The patented architecture implemented in the MIC23030/1 delivers state-of-the-art transient performance and just 3mV of output voltage ripple for portable products. The regulators have internal MOSFETs able to deliver up to 400 milliA output current while consuming just 21 microA of quiescent current inside a tiny 1.6mm x 1.6mm Thin MLF® package. These HyperLight LoadTM step-down regulators achieve up to 93 percent peak efficiency and an impressive 88 percent efficiency under a 1milliA load. The MIC23030/1 are currently available in adjustable, and fixed output options of 1.0V, 1.2V, 1.5V, and 1.8V with pricing starting at $0.55 for 1K quantities. Samples are available on the Micrel web site: http://www.micrel.com/index.do

?The MIC23030 and MIC23031 go beyond the competition by offering best-in-class combination of efficiency, size and transient response," noted Andy Khayat, Micrel's director of marketing for portable products. ?Portable system designers continue to optimize power efficiency to extend battery life while delivering high performance features customers demand. Micrel's patented HyperLight LoadTM architecture provides very high efficiency for low power modes and fast load transient response to maintain the precise supply rail voltages when power demand increases."

The MIC23030 and MIC23031 require just three external components and operate at 8MHz and 4MHz respectively for the MIC23030 and MIC23031, these devices support a solution footprint of just 27mm2 and 29mm2 both under 0.6mm in height. Featuring an operating input supply range from 2.7V to 5.5V, both regulators are suitable for applications powered by single cell Li-Ion battery or 5VDC source such as a USB port. Output accuracy is an impressive +/- 2.5 percent over the operating junction temperature range of -40ºC to +125ºC. Internal protection features include under voltage lockout, current limit and thermal shutdown.

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 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.

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Note: MLF is a registered trademark of Amkor Technology. HyperLight load is a trademark of Micrel, Inc.

Contact:
Julieanne DiBene, Marketing Communications
1-408-474-1276
Julie.DiBene@Micrel.com