ST431

Low Voltage Adjustable Shunt Regulator ST431 123 Block Diagram Catho REF ANODE CATHODE Voltage Reference Accuracy of 0.1% Sink Current Capability from 1mA to 100mA Adjustable Output Voltage from Vref to 36V Low Output Noise Typical Output Dynamic Impedance Less Than 200mΩ Ref + - Vref Anode Typical Application Circuit V+ Rs Note: Rs should provide cathode current >= 1 mA R1 27.5K 0 1% R2 27.5K 0.1% 5V Precision Regulator Vo=5V Low Voltage Adjustable Shunt Regulator ST431 MAXIMUM RATINGS RATING Cathode to Anode Voltage Continuous Cathode Current Reference Input Current Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL VKA IK IREF PD TC Tstg VALUE -0.3 to 36 -100 to +100 -0.05 to 10 0.8 -0 to 105 -65 to 150 UNIT V mA mA W ELECTRICAL CHARACTERISTICS Vcc=5.0V; Ta=0-70 PARAMETERS SYMBOL Reference Input Voltage (IK=10mA, VKA=VREF) VREF Reference Drift (IK=10mA, VKA=VREF) Reference Input Current (IK=10mA, VKA=VREF, IREF Ta=25 ) Reference ...