PRODUCT DESCRIPTION
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 (0°C to 105°C) 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.
The output voltage may be adjusted to any value between VREF and 36 volts with two external resistors. The SPX431 is operating an extended temperature range of 0°C to 105°C. The SPX431 is available in TO-92, SO-8, SOT-89, and SOT-23-5 packages.

FEATURES
• Trimmed Bandgap to 0.5%
• Wide Operating Current..........................1mA to 150mA
• Extended Temperature Range....................0°C to 105°C
• Low Temperature Coefficient ............................30 ppm/°C
• Offered in TO-92, SOIC, SOT-89, SOT-23-5
• Improved Replacement in Performance for TL431
• Low Cost Solution

APPLICATIONS
• Battery Operating Equipments
• Adjustable Supplies
• Switching Power Supplies
• Error Amplifiers
• Single Supply Amplifier
• Monitors / VCR / TV
• Personal Computers