The LM317 is a widely used voltage regulator IC (integrated circuit) that provides a regulated output voltage. It is a versatile component that is capable of regulating voltage with a wide range of applications. Here are some key features and information about the LM317 voltage regulator:
Voltage Regulation: The LM317 can be used to provide a stable and adjustable output voltage. It operates as a three-terminal device with input (Vin), output (Vout), and an adjustable voltage reference (ADJ) pin.
Adjustable Output Voltage: By connecting resistors between the ADJ pin and the output, you can set the desired output voltage to a specific value within its specified range.
Output Current: The LM317 is available in different versions with varying output current ratings. Common variants include the LM317T (1.5A) and LM317L (100mA).
Input Voltage Range: The input voltage can be higher than, equal to, or slightly lower than the desired output voltage. The LM317 can handle input voltages up to 40V.
Thermal Protection: The LM317 includes thermal shutdown and current limiting features to protect against over-temperature and over-current conditions.
Applications: The LM317 is commonly used in power supply circuits, voltage regulation for amplifiers, as a variable voltage reference, and in various analog and digital circuits.
Here's a basic connection diagram for the LM317:
Connect Vin (Input Voltage) to the Vin pin.
Connect Vout (Output Voltage) to the Vout pin.
Use resistors between the ADJ pin and Vout to set the desired output voltage.
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