Fairchild Semiconductor Announces First Power Management Solution For VRM 8.5 Processors in Desktop PCs

Business Wire, April 20, 2001

Business Editors & High-Tech Writers

SAN JOSE, Calif.--(BUSINESS WIRE)--April 20, 2001

Fairchild Semiconductor International (NYSE:FCS) announces the FAN5056MV85 power management integrated circuit (IC) for low-cost desktop computers.

The FAN5056MV85 is the first announced IC to comply with the VRM 8.5 specification for Intel Pentium III processors. This IC includes one single-phase, pulse-width modulated (PWM) switching regulator controller to supply the processor core voltage and three linear regulators for other voltages required by the processor and surrounding circuits.

The PWM switching regulator in the FAN5056MV85 is a synchronous-mode DC-DC controller that provides a high accuracy ( /-0.8%) core voltage of 1.05V to 1.825V in 25mV steps at over 30A according to the voltage identification (VID) code supplied. Programmable Active Droop(TM) provides optimum transient response while minimizing the number of output capacitors. The FAN5056 senses the output current using the RDS(on) of the external MOSFETs thus eliminating current sense resistors saving board space and reducing system cost.

The FAN5056MV85 also has three linear regulators, each capable of supplying over 2A for VClock (2.5V), VNorthbridge (1.8V) and VAGP with Type Detect (selectable 1.5V/3.3V). Additional FAN5056MV85 features include over-voltage, under-voltage, over-current, PowerGood monitors, and thermal shutdown protection.

The FAN5056MV85 is available in a 24-pin SOIC package. An evaluation board is also available.

    Price:            US$1.25 each (1,000 pcs)
    Availability:     Samples now and production quantities in 7-8
                        weeks ARO

For more information, contact Fairchild Semiconductor Customer Response Group at 888/522-5372; fax 972/910-8036, or visit Fairchild's Web site www.fairchildsemi.com.

Editor's note: A PDF of the datasheet is available at www.fairchildsemi.com/pf/FA/FAN5056V85.html. Contact pr@welcomm.com for a product image.

About Fairchild Semiconductor

Fairchild Semiconductor International (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, automotive and aerospace applications. Fairchild's 11,500 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.