The CM3107 is a sinking and sourcing regulator specifically designed for series-parallel bus termination for high-speed chip set busses as well as DDR memory systems. It can source and sink current up to 2.0A with a load regulation of 0.5%. The VTT output voltage is selectable by VDDQSEL and FSBSEL pins. The VDDQSEL pin controls whether the CM3107 is in DDR memory mode with VTT=VDDQ/2, or in FSB mode. In FSB mode, FSBSEL controls whether VTT is 1.225V or 1.45V. This allows the same chip to be used in two different circuits on an Intel 865-based motherboard.