Asia PR News

SAN JOSE, Calif., May 31 /PRNewswire-AsiaNet/ –

Micrel Inc., (Nasdaq: MCRL), an industry leader in analog, high bandwidth
communications and Ethernet IC solutions, today launched a new family of 2 MHz
PWM buck regulators. The new solutions include the MIC4723 (3A); the MIC4720
(2A); and the MIC4721 (1.5A). The MIC4723 and MIC4720 are offered in a 3mm x
3mm MLF(R)-12 and a thermally-enhanced MSOP-10 package, while the MIC4721 is
offered in a MSOP-10. The MIC4720/21/23 ICs are the latest additions to
Micrel’s small footprint, non-synchronous buck regulator family that also
includes the MIC4722 introduced late last year. This family of products
targets wired and wireless broadband communications, printers, HD set top
boxes, computing peripherals and low power FPGAs where total solution cost is
critical. The MIC4720/21/23 devices are available in volume with pricing
starting at $1.40/$1.22/$1.53 for 1K quantities.

"In today’s multiple-rail world, there is an insatiable need for
cost-effective power solutions addressing different current requirements. In
addition, smaller solution footprints continue to be key for designers across
many applications and markets," noted Ralf Muenster, Micrel’s marketing
director for power products. "Micrel’s MIC4720/21/23 buck regulator family
has an operating frequency of 2 MHz, which allows customers to use the
combination of a 1uH inductor and a 4.7micronF output capacitor in their
application, thus creating an ultra-small output filter."

The MIC4720/21/23 feature ultra-fast operation and a proprietary internal
compensation which allows for extreme 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 chips to deliver up to 3, 2
and 1.5 Amps, respectively, with 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 does away
with the need for a sense resistor to provide a current limit, further
reducing the need for external components.

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.

SOURCE Micrel Inc.

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

Web site: http://www.micrel.com
(MCRL)