The WS336-5.0 integrated Circuits are precision 5.0V shunt regulators. The monolithic IC voltage references operates as a low temperature coeffcient 5.0V zener with 0.6ohm dynamic impedance. A third terminal on the WS336-5.0 allow the reference voltage and temperature coefficent to be trimmed easily. WS336-5.0 are useful as a precision 5.0V low voltage reference for digital voltmeters, power supplies or op amp circuitry. The 5.0V make it convenient to obtain a stable reference from low voltage supplies. Further, since the WS336-5.0 operate as shunt regulators, they can be used as either a positive or negative voltage reference.