SPX1431 Datasheet | Sipex

FEATURES - Trimmed Bandgap Reference to 0.4% - Wide Operating Current 1m A to 150m A - Extended Temperature Range: -55°C to 125°C - Low Temperature Coefficient 30 ppm/°C - Offered in TO-92, SOIC, SOT-89, SOT-23-5 - Improved Replacement in Performance for LT1431 - Low Cost Solution DESCRIPTION APPLICATIONS - Battery Operating Equipment - Adjustable Supplies - Switching Power Supplies - Error Amplifiers - Single Supply Amplifier - Monitors / VCRs / TVs - Personal puters The SPX1431 is a 3-terminal adjustable shunt voltage regulator providing a highly accurate bandgap reference. The SPX1431 acts as an open-loop error amplifier with a 2.5V temperature pensation reference. The SPX1431's thermal stability, wide operating current (150m A) and temperature range (-55°C to 125°C) makes it suitable for a variety of applications that require a low cost, high performance solution. SPX1431 tolerance of 0.4% is proven to be sufficient to overe all of the other errors in the system to virtually eliminate the need for trimming in the power supply manufacturer's assembly lines and contributes a significant cost savings. The output voltage may be adjusted to any value between VREF and 36 volts with two external resistors. The SPX1431 is available in TO-92, SOIC-8, SOT-89, and SOT-23-5 packages. BLOCK DIAGRAM Cathode (K) Reference (R) + 2.5V Anode (A) Rev. 08/13/02 SPX1431 Precision Adjustable Shunt Regulator © Copyright 2002 Sipex Corporation ABSOLUTE MAXIMUM RATINGS Cathode-Anode Reverse Breakdown VKA 37V Anode-Cathode Forward Current, (<10ms) IAK 1A Operating Cathode Current IKA 150m A Reference Input Current IREF 10m A Continuous Power Dissipation at 25°C PD TO-92 775m W SOT-23...