TPS2419 N+1 and ORing Power Rail Controller The Texas Instruments TPS2419 N+1 and ORing power rail controller provides the reverse current protection of an ORing diode with the efficiency of a MOSFET. The TI TPS2419 controller can be used to combine multiple power supplies to a common bus in an N+1 configuration or to combine redundant input power bases. This TI power rail controller is designed for use in a wide variety of applications including servers and telecom. The TI TPS2419 controls buses from 3V to 16.5V and features external enable.