ON Semiconductor’s two six-phase PWM controllers, the ADP4000 and ADP4100, satisfy the performance requirements of Intel’s VR11.1 specification. This spec. enables energy efficient motherboard and graphics card designs for servers and high-end desktop computers. Dynamic VID transitions adjust both the processor voltage and processor frequency to switch between power/performance states.
The ADP4000 includes a PMBus programmable digital interface that allows designers to optimize compensation and control performance, saving design-time and decreasing time-to-market. The ADP4000 supports 25 PMBus-defined commands and 38 manufacturer-specific commands.
The ADP4000 is available in a Pb-free, RoHS-compliant LFCSP-48 package, and is priced at $3.75 U.S. per unit in 2,500 unit quantities. The ADP4100 is available in a Pb-free, RoHS-compliant LFCSP-48 package, and is priced at $3.45 U.S. per unit in 2,500 unit quantities.