SAN JOSE, California, September 15 /PRNewswire/ --

- Company Addresses Designers Thirst For Smaller Footprint, Higher
Operating/Transient Voltage For Popular 5V BUS

Micrel Inc., (Nasdaq: MCRL), an industry leader in analog, high bandwidth
communications and Ethernet IC solutions, today gave the consumer market a
boost in cost savings and enhanced voltage with its new Non-Synchronous PWM
buck regulator. Operating at 2 MHz, the MIC4724 is the latest addition to the
popular MIC472X family of small footprint, non-synchronous buck regulators.
It addresses a designer's need for higher operating/transient voltage for the
popular 5V bus, while providing a smaller footprint and substantial cost
savings. The MIC4724 targets wired and wireless broadband communications,
printers, HD set top boxes, computing peripherals and low power FPGAs where
total solution cost is critical. The MIC4724 is available in volume with
pricing starting at US$1.72 for 1K quantities. Samples can now be ordered on
line on Micrel's web site at: http://www.micrel.com/ProductList.do

"In today's multiple-rail world, designers have an insatiable need for
cost-effective power solutions addressing different voltage requirements,"
noted John T. Lee, director Non Portable Power Micrel. "The enhanced voltage
rating of the MIC4724 allows customers to stay with an inexpensive low
voltage process. The improved voltage rating, along with the smaller
footprint and low BOM cost, makes the device ideal for today's growing
broadband applications."

The MIC4724 features ultra-fast operation and a proprietary internal
compensation which allows for extremely fast transient response and the use
of the smallest and most cost-effective LC components in their class. A low
resistance integrated p-channel MOSFET enables the chip to deliver up to
3Amps, where designers can realize more than 94 percent efficiency. The
output voltage can be adjusted down to 1V and can operate with a maximum duty
cycle of 100 percent for use in low dropout conditions. The P-MOSFET also
eliminates the need for a sense resistor to provide a current limit, further
reducing the external component count. The MIC4724 is available in a small
footprint, highly reliable and thermally enhanced Pb-free eMSOP-10 package.

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.

Web site: http://www.micrel.com