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Micrel Builds On High Speed LDO Family for Point-of-Load Applications

  //science-technology.news-articles.net/content/2 .. d-ldo-family-for-point-of-load-applications.html
  Published in Science and Technology on Monday, May 10th 2010 at 4:12 GMT by Market Wire

SAN JOSE, CA--(Marketwire - May 10, 2010) - Micrel, Inc. (NASDAQ: [ MCRL ]), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today launched the [ MIC47050 ], a 0.5A high speed, very low dropout regulator ULDO™ with input voltage capability down to 1.0V. The MIC47050 is designed to take advantage of applications that utilize multiple supply rails to generate low voltage, high current power supplies. The device is ideal for point-of-load, DSPs, PLDs, PDAs, FPGAs and low voltage post regulation applications. It is currently available in volume quantities and is priced at $0.62 for 1K quantities in the 2mm x 2mm MLF^® package.

"Many new point-of-load applications are beginning to use 1.8V as a main input power distribution rail while providing output voltages from 1.25V to 0.5V to power low voltage processor and microcontroller cores," noted Andy Khayat, business unit director of Micrel's portable products group. "The low Vin capability of Micrel's new device provides a high efficiency solution for the system designer."

The NMOS output stage of the [ MIC47050 ] makes for a unique ability to respond very quickly to sudden load changes required by a microprocessor, DSP or FPGA. It can source up to 0.5A of output current while only requiring a 1uF ceramic output capacitor for stability. The device offers an operating voltage range of 1.0V to 3.6V input supply, 2.3V to 5.5V bias supply and only 44mV dropout at full load. It comes with a 0.4V to 2.0V output voltage range and a PSRR of > 55dB at 1kHz. The IC also gives designers high output voltage accuracy of +/- 1.5 percent initial accuracy and +/- 2 percent over temperature. The [ MIC47050 ] is housed in a tiny 2mm x 2mm MLF^® package which is ideal for customers with limited board space. The IC features a with an operating junction 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: [ http://www.micrel.com ].

Note: MLF is a registered trademark of Amkor Technology.