Smart load switches targets power-sensitive, sub-5V applications

Micrel Inc. a provider of analog, high bandwidth communications and Ethernet IC solutions, launches additions to their family of miniature high current load switches. The MIC94066/67/68/69 are all part of a family of smart high-side load switches. Housed in tiny 2mm x 2mm MLF packages these high output current switches are ideal for portable applications such as cellular phones, PDAs, MP3 players, digital cameras, notebook PCs, barcode scanners, battery switch-over circuits and level translator applications.

“Battery life continues to be of paramount concern to manufacturers of portable personal appliances,” noted John Lee, Micrel's director of Mixed- Signal and RF Products, Micrel. “Switching subsystem power on and off as user demands change has become a common strategy for extending battery life. The new MIC940xx series, with its quiescent current of 2μA and low shutdown current of less than 1μA, provides ideal solutions for power-sensitive, sub-5V or less applications.”

The MIC94066/67/68/69 operate with inputs ranging from 1.8V to 5.5V and can be driven by 1.5V logic. They provide up to 2A of continuous current per channel via low on-resistance p-Channel MOSFETs with 2A of continuous current. PC board space is saved in portable applications with Micrel's low thermal resistance 2mm x 2mm package. The ICs are currently available in volume, with pricing starting at $0.56, for 10K quantities.

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.

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