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SPX431A - Precision Adjustable Shunt Regulator

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.

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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 assembly line and contribute a significant cost savings.
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