NTE97 is a generic integrated circuit (IC) used for many types of applications, including voltage regulators, oscillators, switching circuits, and interface circuits. It is a type of three-terminal adjustable regulator, primarily used to regulate the output of another power source such as a battery or a solar panel. An adjustable regulator allows the user to adjust the output voltage, allowing for greater flexibility in controlling the voltage of an application. Additionally, NTE97 integrated circuits can be used for many other purposes, including in power supply circuits and other signal conditioning applications.