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PROGRAMMABLE PRECISION SHUNT REGULATOR |
FEATURES - Programmable Output Voltage to 40V- Guaranteed 0.5% Reference Voltage Tolerance- Low (0.2 ohm Typ.) Dynamic Output Impedance- Cathode Current Range(Continuous) - 100 ~ 150 mA- Equivalent Full Range Temperature Coefficient of 50ppm/°C- Temperature Compensated For Operation Over Full Rate Operating Temperature Range- Low Output Noise Voltage- Fast Turn-on Response- SOT-23 3L Package |
DESCRIPTION The LM431 is a three-terminal adjustable shunt regulator with specified thermal stability over applicable temperature VREF (Approx. 2.5V) and 40V with two external resistors. This device has a typical dynamic output impedance of 0.2ohm. Active output circuitry provides a very sharp turn-on characteristic, making this device excellent replacement for zener diodes in many applications. The LM431 is characterized for operation from -40°C to +125°C. |