Micrel Launches Dual-Output Buck Regulator With HyperLight Load(R) Combining Highest Efficiency in Smallest Footprint

Micrel Launches Dual-Output Buck Regulator With HyperLight Load(R) Combining 
Highest Efficiency in Smallest Footprint 
SAN JOSE, CA -- (Marketwire) -- 02/25/13 --  Micrel, Inc. (NASDAQ:
MCRL), an industry leader in high-performance linear and power
solutions, LAN and timing and communications solutions, today
introduced the MIC23158/9, two high-efficiency 3MHz dual-output 2A
buck regulators. Benefiting from Micrel's proprietary HyperLight
Load(R) technology, the ICs provide ultra-fast transient response for
today's most demanding applications including set-top boxes, core and
I/O voltages for FPGAs, CPLDs, ASICs, GPS/navigation systems, PC
cards, automotive instrumentation and general purpose point-of-load
(POL) DC-to-DC conversions. The MIC23158/9 are currently available in
volume with pricing starting at $0.88/$0.91 for 1K quantities.
Samples can be ordered at:
The MIC23158/9 devices offer up to 93 percent peak efficiency in PWM
mode and ultra-fast response to sudden load variances. Micrel's
proprietary architecture also produces very low output ripple voltage
in full PWM mode with the use of small output capacitors. This
full-featured solution also includes a Power Good (PG) signal that
prevents the system from attempting to operate at improper voltages.
It also features a programmable soft start that limits the in-rush
current while the device is powering up. The total solution takes
only 12mm x 12mm of board space.  
"By combining exceptional high efficiency, superior stability and
transient response with innovative packaging to ensure the best power
density and thermal performance across the entire load range, the
MIC23158/9 delivers unprecedented performance and flexibility to
designers," noted Brian Hedayati, vice president of marketing for
high-performance Linear and Power Solutions at Micrel. "Micrel's
unique HyperLight Load architecture also offers the benefits of
reduced bill-of-materials costs and world class transient response
for applications such as portable point-of-sales terminals, USB
wireless hubs and dongles, RFID reader cards, automotive electronics
and point-of-load (POL) applications."  
The MIC23158/9 both come in a thermally enhanced 20-pin 3mm x 4mm
MLF(R) pa
ckage and offer two independent supply inputs ranging from
2.7V to 5.5V. They offer two adjustable outputs ranging from 1.0V to
3.6V and up to 2A output current per channel. The MIC23158/9 also
offer very low quiescent current (45uA/channel) and achieve as high
as 83 percent efficiency at load currents as low as 1mA. Both
solutions also offer two independent Power Good (PG) output
indicators, enable inputs and programmable soft-start inputs. The
devices operate at a junction temperature range of -40C to +125C
degrees. The MIC23159 comes with an additional active pull down
circuit to discharge the output when the device is disabled. 
About Micrel, Inc.
 Micrel, Inc. is a leading global manufacturer of
IC solutions for the worldwide high-performance linear and power, LAN
and timing and communications markets. The Company's products include
advanced mixed-signal, analog and power semiconductors, as well as
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 registered trademark of Amkor Technology, Inc.
HyperLight Load is a registered trademark of Micrel, Inc.  
Julieanne DiBene
Marketing Communications
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