Here are the main Features and Specifications of the LM317T:

Adjustable Output Voltage: One of the key features of the LM317T is its ability to provide an adjustable output voltage. By connecting external resistors, the output voltage can be set to a desired level within the specified range.

Output Voltage Range: The LM317T is capable of providing an output voltage range from approximately 1.25 volts to 37 volts. This adjustable range makes it suitable for a variety of applications.

Output Current: The maximum output current that the LM317T can supply is typically around 1.5 amperes. This makes it suitable for powering a range of electronic circuits with moderate power requirements.

Three-Terminal Device: The LM317T has three terminals: Vin (input), Vout (output), and ADJ (adjust). The input voltage is applied to the Vin terminal, the regulated output voltage is obtained from the Vout terminal, and the ADJ terminal is used to set the output voltage by connecting external resistors.

Internal Thermal Overload Protection: The IC incorporates thermal overload protection, which means that it will automatically limit the current or shut down if the temperature rises to a critical level, preventing damage due to overheating.