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LDOs meet power demands of portable apps

Posted: 28 Oct 2008 ?? ?Print Version ?Bookmark and Share

Keywords:LDO? regulator?

Micrel Inc. has launched the MIC5326/27/37 family of single output, low quiescent current LDO regulators designed for power-hungry battery-powered electronics including mobile phones, PDAs, MP3s, PNDs, DSCs and handheld medical instruments.

The LDOs are capable of sourcing up to 300mA, while consuming only 24?A of quiescent current and still maintaining low dropout performance in a tiny 1.2mm x 1.6mm Thin MLF package. The combination of these performance benefits provide extended battery run time for small handheld applications.

The MIC5326/27/37 is a ?Cap 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 full protection circuitry, including current limit and thermal shutdown protection, with an operating junction temperature range of -40C to 125C.

"Today's portable applications continue to converge features, while demanding improved operating times from a single battery charge," noted Andy Khayat, Micrel's director of marketing for portable power products. "Micrel's new MIC5326/27/37 family of low quiescent current LDO regulators gives customers the perfect solution where small footprint and maximum battery life are key factors."

The MIC5326/27/37 family is currently available in volume and pricing starting at $0.32 for 1,000 quantities.

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