Micrel Powers Up With Latest Family of Micro-Power Dual LDOs Fo Today’s Demanding Battery-Powered Applications

Micrel Powers Up With Latest Family of Micro-Power Dual LDOs Fo Today’s Demanding Battery-Powered Applications

San Jose, Calif., April 7, 2008 — Micrel Inc., (Nasdaq:MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today launched the MIC5331/32/33 a new dual channel micro-power LDO regulator family ideally suited for today’s power-hungry, battery-powered electronics including mobile phones, PDAs, MP3 players, personal navigation devices (PND), digital still cameras and handheld instruments. This MIC533x family integrates two low quiescent current 300mA LDO regulators and up to two Power On Resets (POR) circuits into a 2mm x 2mm Thin MLF ® package, allowing hand-held customers to power up and still save precious battery time. The MIC5331/2/3 family is currently available in volume quantities with pricing starting at $0.66 for 1K quantities.

“Today’s portable applications continue to increase functionality while demanding equal or improved operating times from a single battery charge,” noted Andy Khayat, Micrel’s director of marketing for portable power products. “Micrel’s new MIC533x family of LDO regulators gives customers the ability to power up the most advanced features and the integration to reduce the solution size while using the absolute minimum amount of power. This gives designers the space savings and flexibility they need to create the latest and most feature-rich hand-held products possible.”

The MIC533x family provides two 300mA LDO regulators with very fast transient response to any load change condition and up to two POR circuits with adjustable delay time. The MIC533x family achieves this in spite of only consuming 40uA total while both outputs are enabled. This combination of integration, high performance and low power consumption makes the MIC533x family suitable for all applications in portable electronics. The MIC5331/32/33 is a µCap design, operating with very small ceramic output capacitors, which reduces required board space and component cost; and it is available in fixed output voltages. In addition, this family offers high PSRR and full protection circuitry including current limit and thermal shutdown protection, with an operating junction temperature range of -40˚C to 125˚C.

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.

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