LM4431

LM4431 www.ti.com SNVS103C – JUNE 2000 – REVISED APRIL 2013 LM4431 Micropower Shunt Voltage Reference Check for Samples: LM4431 FEATURES 1 2 Small Package: SOT-23 No Output Capacitor Required Tolerates Capacitive Loads Fixed Reverse Breakdown Voltage of 2.50V APPLICATIONS Portable, Battery-Powered Equipment Data Acquisition Systems Instrumentation Process Control Energy Management Product Testing Power Supplies DESCRIPTION Ideal for space critical applications, the LM4431 voltage reference is available in the sub-miniature (3 mm x 1.3 mm) SOT-23 surface-mount package. The LM4431's advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4431 easy to use. 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. KEY SPECIFICATIONS 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 to +70 °C Low Temperature Coefficient: 30 ppm/°C (Typ) Connection Diagram Top View * This pin must be left floating or co...