LM431AIM3/NOPB Texas Instruments - Yeehing Electronics

2%, 1%, or 0.5% accuracy, adjustable precision Zener shunt regulator

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Specifications

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The LM431 is a 3-terminal adjustable shunt regulator with ensured temperature stability over the entire temperature range of operation. The output voltage may be set at any level greater than 2.5 V (VREF) up to 36 V merely by selecting two external resistors that act as a voltage divided network. Due to the sharp turnon characteristics this device is an excellent replacement for many Zener diode applications.