Fairchild Semiconductor's New VRM10.x Compliant Controller/Driver Chipset Offers Scalability While Meeting Power Requirements in Next Generation VRM CPUs and Processors
SAN JOSE, Calif.—(BUSINESS WIRE)—March 30, 2004—
Fairchild Semiconductor (NYSE:FCS) today announced the
FAN5019, a multi-phase PWM controller, and the FAN5009, a dual,
high-frequency MOSFET driver. These latest power management products
from Fairchild form a chipset that is part of a complete VRM/VRD10.x
power solution that meets the stringent power requirements of today's
CPUs. The FAN5009/FAN5019 chipset is also scaleable enough to conform
to the ever-evolving demands of high-performance microprocessors,
which require more current than can be practically supplied by a
single-phase VRM.
To meet tight power requirements, Fairchild's new FAN5009/FAN5019
chipset allows the regulator to scale from 2, 3 or 4 phases, and
converges a 12V main supply into the highly accurate core supply
voltage. In addition, the chipset can deliver up to 140A for the CPU
core from a 12V input -- providing scalability and power for future
VRM10.x processors.
The FAN5019's architecture combines a highly stable, high-speed
control loop with active voltage positioning (droop) to meet CPU load
transient requirements while minimizing the number of output
capacitors and their associated costs. Fairchild's VRM10.x solution
uses temperature-compensated inductor current sensing -- the current
sense architecture recommended by major CPU manufacturers -- to
measure current and accurately set and maintain the loadline. Most
competing products use MOSFET RDS(on) or sense resistors to measure
current and set the loadline, a less accurate and more costly option.
Fairchild's current sensing method allows the designer to change the
FETs, without having to recompensate loadline control circuit values,
and it provides tight accuracy at the lowest system cost, unlike
competitive products.
"Fairchild's VRM10.x chipset solution meets rigorous power
specifications, including tight loadline requirements, while reducing
part count and system cost. To further save space and costs in
designs, the FAN5009 driver features an integrated bootstrap diode for
high-side drive," said Madhu Rayabhari, director of marketing for
Fairchild's System Power Group. "The FAN5019 and FAN5009, combined
with Fairchild's extensive selection of high and low side power
MOSFETs (including the new, high-performance MOSFET BGAs), offer
designers a comprehensive single-source for advanced VRM/VRD10.x power
supply components."
The FAN5019 is pin- and function backward-compatible with
Fairchild's FAN53168 and FAN53180 controllers, and the FAN5009 is pin-
and function backward-compatible with the FAN53418 driver. To further
increase the reliability of the supply chain, the FAN5019 and FAN5009
are also 100% pin-compatible second sources to the ADP3168, ADP3180
and the ADP3418, respectively.
The FAN5009/FAN5019 chipset also features undervoltage,
overvoltage, crowbar and short-circuit protection for enhanced system
safety and reliability. Additionally, the FAN5019 takes advantage of
dynamic VID technology to allow seamless "on-the-fly" VID changes.
Dynamic VID allows the processor to save power by lowering its Vcore
voltage while it is running.
The FAN5019 is available in a 28-lead TSSOP package and the
FAN5009 is available in an 8-lead SOIC package. Both devices are rated
for operation from 0 to +85(degree)C and are currently available in
volume production.
Price: FAN5019 (28-lead TSSOP): US$ 1.39 (1000 pcs); FAN5009
(8-lead SOIC): US$ 0.60(1000 pcs).
Availability: Now
Delivery: 8 weeks for greater than 100K quantities
Additional information on Fairchild's VRM 10 solution is available
at: www.fairchildsemi.com/whats_new/vrm10.html. For information on
other Fairchild products, design tools, and sales contacts, please
visit http://www.fairchildsemi.com.
Editor's Note: Datasheets in PDF format are available at:
www.fairchildsemi.com/ds/FA/FAN5019.pdf
www.fairchildsemi.com/ds/FA/FAN5009.pdf
About Fairchild Semiconductor:
Fairchild Semiconductor (NYSE:FCS) is a leading global supplier of
high performance products for multiple end markets. With a focus on
developing leading edge power and interface solutions to enable the
electronics of today and tomorrow, Fairchild's components are used in
computing, communications, consumer, industrial and automotive
applications. Fairchild's 10,000 employees design, manufacture and
market power, analog & mixed signal, interface, logic and
optoelectronics products from its headquarters in South Portland,
Maine, and numerous locations around the world. Please contact us on
the Web at www.fairchildsemi.com.
Contact:
Fairchild Semiconductor
Analog and Mixed Signal Products Group
Suzanne Bowser, 408-822-2314
Fax: 408-822-2410
suzanne.bowser@fairchildsemi.com
or
WelComm Inc.
Greg Evans, 858-279-2100
Fax: (858) 279-5400
greg@welcomm.com
