SPX1431

Cathode-Anode Reverse Breakdown V_KA ...................................37V
Anode-Cathode Forward Current, (<10ms) I_AK ............................1A
Operating Cathode Current I_KA .............................................150mA
Reference Input Current I_REF ...................................................10mA
Continuous Power Dissipation at 25°C P_D
TO-92 ...................................................................775mW
SOT-23 ................................................................200 mW
SOIC-8 .................................................................750mW
SOT-89 ...............................................................1000mW
Junction Temperature T_J .......................................................150 °C
Storage Temperature T_STG ........................................-65 to 150 °C
Lead Temperature (Soldering 10 sec.) T_L ..............................300°C

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 compensation reference. The SPX1431's thermal stability, wide operating current (150mA) 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 overcome 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.