The SPX431 is a 3-terminal adjustable shunt voltage regulator providing a highly accurate 0.5% bandgap reference. SPX431 acts as an open-loop error amplifier with a 2.5V temperature compensation reference. The SPX431 thermal stability, wide operating current (150mA) and temperature range (0C to 105C) makes it suitable for all variety of application that are looking for a low cost solution with high performance. SPX431 tolerance of 0.5% is proven to be sufficient to overcome all of the other errors in the system to virtually eliminate the need for trimming in the power supply manufactures assembly line and contribute a significant cost savings.