SPX431B Datasheet | Sipex Corporation

FEATURES - Trimmed Bandgap: 0.5%, 1% and 2% - Wide Operating Current: 1m A to 150m A - Extended Temperature Range: 0°C to 105°C - Low Temperature Coefficient: 30 ppm/°C - Improved Replacement in Performance for TL431 - Low Cost Solution - Available in Lead Free, Ro HS pliant packaging: SOIC, SOT-89, SOT-23-3, SOT-23-5, and TO-92 APPLICATIONS - Battery Operated Equipment - Adjustable Supplies - Switching Power Supplies - Error Amplifiers - Single Supply Amplifier - Monitors/VCRs/TVs - Personal puters DESCRIPTION The SPX431 is a three-terminal adjustable shunt voltage regulator providing a highly accurate bandgap reference. The SPX431 acts as an open-loop error amplifier with a 2.5V temperature pensation reference. The SPX431 has thermal stability, wide operating current of 150m A and broad temperature range of 0°C to 150°C, making it suitable for a variety of applications which require a low-cost, high performance solution. SPX431A tolerance of 0.5% is proven to be sufficient to overe 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. The output voltage may be adjusted to any value between VREF and 36 volts with two external resistors. The SPX431 is available in SOIC-8, SOT-23-3, SOT-23-5, SOT89, and TO-92 packages. typical applications circuit Cathode (K) Reference (R) + 2.5V Anode (A) Rev F: Nov 21-06 SPX431A,B,C Precision Adjustable Shunt Regulator © 2006 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 SOIC-8...