Board mountable power supply module with multi-function control pin

A board mountable power supply module for converting an input voltage to a regulated output voltage comprising:

• a power train including an input voltage pin, an output voltage pin, and a common pin, the power train operable to convert the input voltage received on the input voltage pin into the regulated output voltage which is placed on the output voltage pin;
• and
• a controller connected to the power train and operable to regulate the output voltage, the controller further comprising a multifunction control pin and an integrator network, the integrator imparting an output voltage droop characteristic to the power supply module, wherein the integrator circuit improves current sharing when the board mountable power supply module is used in parallel with at least a second board mountable power module and the multi-function control pins of each module are electrically connected together, and further wherein the board mountable power supply module includes only four pins.