The LM317T is a popular linear voltage regulator integrated circuit (IC) that is used for generating a regulated and adjustable output voltage from a higher, unregulated input voltage source. It is part of the LM317 series of voltage regulators and is known for its versatility and ease of use. Here are some key features and specifications of the LM317T voltage regulator:
Voltage Regulation: The LM317T is an adjustable voltage regulator, allowing you to set the desired output voltage by using external resistors. It can provide a regulated output voltage in the range of 1.25 volts to 37 volts, making it suitable for a wide range of applications.
Input Voltage Range: The LM317T can handle input voltages higher than the desired output voltage by a few volts. Typically, it can handle input voltages up to 40V or higher, depending on the manufacturer and specific model.
Output Current: The LM317T can provide a maximum output current of approximately 1.5A, depending on the specific model and operating conditions. Some variants with higher current ratings are also available.
Package: The LM317T is typically available in a TO-220 package, which provides good thermal performance and ease of mounting to heatsinks for cooling.
Adjustable Output Voltage: The LM317T allows you to set the desired output voltage by using two external resistors. The equation for calculating the output voltage is Vout = 1.25V × (1 + R2/R1), where R1 and R2 are the values of the external resistors.
Thermal Protection: The LM317T includes built-in thermal overload protection, which helps prevent the IC from overheating.
Applications: The LM317T is commonly used for voltage regulation in various electronic circuits, power supplies, battery chargers, and voltage references. It's also popular in DIY electronics and hobbyist projects.
Adjustable Voltage References: The LM317T can be used as an adjustable voltage reference, providing a stable reference voltage for other parts of a circuit.
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