SAN JOSE, California, August 28 /PRNewswire/ --

Micrel Inc., (Nasdaq: MCRL), an industry leader in analog, high bandwidth
communications and Ethernet IC solutions, today launched the MIC23030 and
MIC23031, the newest additions to the HyperLight Load(TM) family of
synchronous step-down regulators. The patented architecture implemented in
the MIC23030/1 delivers state-of-the-art transient performance and just 3mV
of output voltage ripple for portable products. The regulators have internal
MOSFETs able to deliver up to 400 milliA output current while consuming just
21 microA of quiescent current inside a tiny 1.6mm x 1.6mm Thin MLF(R)
package. These HyperLight Load(TM) step-down regulators achieve up to 93
percent peak efficiency and an impressive 88 percent efficiency under a
1milliA load. The MIC23030/1 are currently available in adjustable, and fixed
output options of 1.0V, 1.2V, 1.5V, and 1.8V with pricing starting at US$0.55
for 1K quantities. Samples are available on the Micrel web site:
http://www.micrel.com/index.do

"The MIC23030 and MIC23031 go beyond the competition by offering
best-in-class combination of efficiency, size and transient response,"
noted Andy Khayat, Micrel's director of marketing for portable products.
"Portable system designers continue to optimize power efficiency to extend
battery life while delivering high performance features customers demand.
Micrel's patented HyperLight Load(TM) architecture provides very high
efficiency for low power modes and fast load transient response to maintain
the precise supply rail voltages when power demand increases."

The MIC23030 and MIC23031 require just three external components and
operate at 8MHz and 4MHz respectively for the MIC23030 and MIC23031, these
devices support a solution footprint of just 27mm(2) and 29mm(2) both under
0.6mm in height. Featuring an operating input supply range from 2.7V to 5.5V,
both regulators are suitable for applications powered by single cell Li-Ion
battery or 5VDC source such as a USB port. Output accuracy is an impressive
+/- 2.5 percent over the operating junction temperature range of -40 degrees
C to +125 degrees C. Internal protection features include under voltage
lockout, current limit and thermal shutdown.

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 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. HyperLight load
is a trademark of Micrel, Inc.

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