NTE999

NTE999 Integrated Circuit Adjustable Precision Shunt Regulator Description: The NTE999 is a three–terminal adjustable shunt regulator with guaranteed thermal stability over a temperature range of –0° to +70°C. The output voltage may be set to any value between Vref (approximately 2.5V) and 36V with two external resistors. This device has a typical dynamic output impedance of 0.2Ω. Active output circuitry provides a very sharp turn–on characteristic, making the NTE999 an excellent replacement for zener diodes in many applications. Features: D Equivalent Full–Range Temperature Coefficient: 30ppm/°C Typ D Adjustable Output Voltage D Fast Turn–On Response D Sink Current Capability: 1mA to 100mA D Low Dynamic Output Impedance: 0.2Ω Typ D Low Output Noise Voltage Absolute Maximum Ratings: (TA = 0° to +70°C unless otherwise specified) Cathode Voltage (Note 1), VKA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37V Continuous Cathode Current Range, IK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –100mA to 150mA Reference Input Current Range, Iref . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50µA to 10mA Continuous Power Dissipation, PD Up to +25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 775mW Derate Above +25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....