LDO extends battery life of portable electronics.

Press Release Summary:



Featuring typical ground current of 1.2 µA, MIC5232 provides stand-by power to memory and real-time clocks used in mobile electronics. This 10 mA LDO has input voltage range of 2.7-7 V and back-bias protection feature that allows external voltage to be supplied to its output without harm or excessive current flow. Available in fixed output voltages in 2 x 2 mm MLF®6-L and TSOT-23-5 packages, IC offers thermal shutdown and current limit protection.



Original Press Release:



Micrel Introduces New Energy-Saving LDO that Extends Battery Life for Portable Consumer Applications



SAN JOSE, Calif., Nov. 16 -- Micrel Inc. (NASDAQ:MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today launched the MIC5232, a new 10mA LDO, offering power saving features for extending battery life. The new IC is ideally suited to provide stand-by power to memory and real time clocks used in high-end mobile phones, PDAs, GPS, handheld instrumentation/metering, and medical instrumentation, etc. The MIC5232 is currently available in volume and pricing starts at $0.45 for 1K quantity.

"Ultra-Low Quiescent Current LDOs (1uA-type) have been around for some time," noted Ralf Muenster, Micrel's director of marketing for power products. "However, most offer poor regulation, no protection circuitry and cannot be back driven, making them ill-suited to today's consumer products. The MIC5232 offers a lower input voltage and lower output voltage capability, making it an ideal solution for a wide variety of portable applications where saving battery power is crucial."

The MIC5232 features ultra-low ground current of 1.2uA, typical. A back-bias protection feature allows for external voltage that can be supplied to the output of the MIC5232 without harm or excessive current flow. This feature allows the MIC5232 to be used in a battery back-up system where it regulates a coin cell while preventing reverse current to the coin cell when a higher supply voltage is applied to the output of the LDO. Additional protection features include thermal shutdown and current limit. The input voltage range of the device is 2.7V to 7V which covers 3.3V and 5V bus and Li-Ion battery input voltage ranges. The MIC5232 is available in fixed output voltages in a tiny 2mm x 2mm MLF(R)6-L and TSOT-23-5 packages. The parts are qualified to the full industrial temperature range of 40-deg C to 125-deg 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: www.micrel.com/ .

NOTE: MLF is a trademark of Amkor Technology.

CONTACT: Julieanne DiBene, Marketing Communications of Micrel Inc., +1-408-474-1276, or Julie.DiBene@Micrel.com

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