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SPX431L - Precision Adjustable Shunt Regulator

Description

The SPX431L is a 3-terminal adjustable shunt voltage regulator providing a highly accurate bandgap reference.

The SPX431L acts as an open-loop error amplifier with a 2.5V temperature compensation reference.

Features

  • Tight Voltage Tolerance 0.5% at 10mA.
  • Wide Operating Current 1mA to 100mA.
  • Extended Temperature Range: 0°C to 105°C.
  • Low Temperature Coefficient 30 ppm/°C.
  • Improved Replacement in Performance for TL431 and AS431.
  • Low Cost Solution.

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SPX431L Precision Adjustable Shunt Regulator July 2013 Rev. 2.0.1 GENERAL DESCRIPTION The SPX431L is a 3-terminal adjustable shunt voltage regulator providing a highly accurate bandgap reference. The SPX431L acts as an open-loop error amplifier with a 2.5V temperature compensation reference. The SPX431L’s thermal stability, wide operating current (100mA) and temperature range (0°C to 105°C) makes it suitable for a variety of applications that require a low cost, high performance solution. SPX431L 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 manufacturer's assembly line and contribute a significant cost savings.
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