I have 3 Ultrasonic Sensors that need 5V to operate, and have a current draw of 30-35mA. Also, I have 2 Infrared sensors that need 5V to operate, and have a current draw of 30-40mA. Will I be able to provide power to all 5 of these sensors, using the 5 volt output pin, by creating a 5V rail, using the arduino due. I know the 5V regulator in the due has a DC current of 800mA, which will be plenty current for the sensors, but I don't want the arduino due to overheat.
Those 200 mA should keep you on the safe side. (Dont connect 5V to I/O-pins)