April 2009
SPX431A
Precision Adjustable Shunt
Regulator
Rev.
2.
0.
0
GENERAL DESCRIPTION
The SPX431A is a three-terminal adjustable shunt voltage
regulator providing a highly accurate bandgap reference.
The SPX431A acts as an open-loop error amplifier with a 2.
5V temperature compensation reference.
The SPX431A has thermal stability, wide operating current of 150mA and broad temperature range of -40°C to 125°C, making it suitable for a variety of applications which require a low-cost, high performance solution.
The SPX431A tolerance of 0.
5% is proven to be sufficient to overcome all other errors in the system to virtually eliminate the need for trimming in the power supply manufacturer's asse...