LMV431ACM5/NOPB – TEXAS INSTRUMENTS

The Texas Instruments LMV431ACM5/NOPB is a low-voltage, shunt-type precision voltage reference featuring a 1.235V output voltage with a typical accuracy of ±0.2%. Its low-power consumption, drawing only a few microamps quiescent current, makes it ideal for battery-powered applications. The device operates from a supply voltage range of 2.7V to 36V, exhibiting excellent stability over temperature and time. Packaged in a space-saving SOT-23-5 (5-lead) surface-mount package, the “NOPB” designation confirms lead-free, halogen-free packaging._x000D_
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The LMV431ACM5’s key advantage lies in its precise voltage regulation even at low currents, exceeding the performance of many standard Zener diodes. This makes it suitable for applications requiring accurate voltage references in precision analog circuits, such as A/D converters, data acquisition systems, and current sensing circuits. Its low output impedance further enhances its stability under varying load conditions. The 5-lead package provides a connection for both the cathode and an adjustable shunt pin, allowing for programmable output voltages above the nominal 1.235V. This adjustability offers design flexibility not found in simpler, fixed-voltage references. The low-noise characteristics are also beneficial in sensitive measurement applications.