The MAX5915/MAX5916 provide independent power controls for +3.3V, +5V, 12V, and +3.3V auxiliary supplies of two PCI cards. The MAX5915/MAX5916 provide intelligent selective thermal shutdown control that shuts down the channel with an overcurrent fault. Both the MAX5915 and MAX5916 include internal power MOSFETs for the +12V, -12V, and +3.3V auxiliary outputs. The MAX5915/MAX5916 use internal charge pumps to activate the gates of the internal FETs controlling the +3.3V auxiliary supply. Internal FETs and currentsense circuitry regulate the 12V and the +3.3V auxiliary supplies. Channels A and B operate independently, allowing a single MAX5915/MAX5916 to monitor two PCI card slots.