| Description & Applications | FEATURES • ADJUSTABLE PRECISION SHUNT REGULATOR • Precision reference voltage  • AP431: 2.495V ± 1%  • AP431A: 2.495V ± 0.5%  • Sink current capability: 200mA  • Minimum cathode current for regulation: 300μA  • Equivalent full-range temp coefficient: 30 ppm/°C  • Fast turn-on response  • Low dynamic output impedance: 0.2Ω • Programmable output voltage to 36V  • Low output noise  • Lead Free packages: SOT25, SC59, SC59R,   SOT89-3L and TO92-3L    • SOT23, SOT23R, SOT25, SC59, SC59R, SO-8, SOT89-3L, TO92-3L: Available in “Green” Molding Compound (No Br, Sb)  • Lead Free Finish/ RoHS Compliant (Note 1) |