Even in the event of large power supply variations, this LT1029ACZ voltage reference power management device from Linear Technology can produce and maintain a precise DC voltage. It has an initial accuracy of 0.2%. With an output that has a voltage of 5 V, this is power management at its best. At a load regulation of 5mV your circuit is capable of maintaining a constant voltage level at your output. This voltage reference circuit supports shunt topology. It runs with a maximum temperature coefficient of 20ppm/°C. This voltage reference circuit has a minimum operating temperature of 0 °C and a maximum of 70 °C.