by Anton Shilov
11/07/2002 | 10:45 AM
Fairchild Semiconductor International announced the FAN5098 DC/DC Voltage Regulator IC for the upcoming AMD Opteron and AMD Athlon processors based on the x86-64 architecture. The FAN5098 is intended for use in providing precise, efficient power regulation for the CPU Vcore in desktop, workstation and server applications. The FAN5098 uses a multi-phase architecture, including unique control-loop methods to improve load regulation and transient response, specifically addressing the requirements of advanced microprocessors.
The two-phase FAN5098 includes built-in, high-performance MOSFET drivers for the highest integration available in the industry. 5-bit VID codes allow for output voltages from 0.800V to 1.550V. Dynamic VID transitions are supported per AMD specifications with glitch-free output voltage and controlled slew-rate. Typical output current is 42A and is easily scalable, thus enabling flexible motherboard designs to support future AMD processors. Current sensing is achieved with loss-less MOSFET RDS(on) methods and current matching is closely controlled between the output phases.<%BANNER[article]%>
Programmable Active Droop enables the reduction of output capacitors while meeting transient voltage regulation requirements. Loop compensation is provided internally to ease design-in and reduce external component count and cost. Over-voltage/under-voltage protection, programmable current limiting, programmable soft-start, thermal protection and power-good output are built-in features for increased system safety and reliability.
The FAN5098 is available in a 24-pin TSSOP package for $1.88 in quantities starting from 1000 pieces and is rated for operation from 0 to +70 degrees Celsius.
You can view a picture of the novelty here. By the way, pay your special attention to the brand-name written on the mouse. That is Dell, utilising the x86-64 CPUs from AMD.
