GENERAL DESCRIPTION
Ideal for space critical applications, The operating current range is 100 µA to 15 mA. The LM4431 utilizes fuse and zener-zap reverse breakdown voltage trim during wafer sort to ensure that the parts have an accuracy of better than ± 2.0% at 25˚C. Bandgap reference temperature drift curvature correction and low dynamic impedance ensure stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents. n Tolerates capacitive loads n Fixed reverse breakdown voltage of 2.50V Key Specifications n n n n n Output voltage tolerance 25˚C: ± 2.0% (max) Low output noise (10 Hz to 10 kHz): 35 µVrms (typ) Wide operating current range: 100 µA to 15 mA Commercial temperature range: 0˚C to +70˚C Low temperature coefficient: 30 ppm/˚C (typ) APPLICATIONS
n n n n n n n Portable, Battery-Powered Equipment Data Acquisition Systems Instrumentation Process Control Energy Management Product Testing Power Supplies FEATURES
n Small package: SOT-23 n No output capacitor required Connection Diagram SOT-23 DS011374-1 * This pin must be left floating or connected to pin 2.
National Semiconductor
