The LM317AT is an adjustable voltage regulator integrated circuit (IC) that provides a high-output current, adjustable output voltage, and excellent line and load regulation. Developed by Texas Instruments, this versatile IC is commonly used in various power supply applications, battery chargers, and voltage regulators.
Key features of the LM317AT include:
1. Adjustable Output Voltage: The LM317AT allows the user to adjust the output voltage over a wide range using external resistors. The output can be set between 1.2V to 37V.
2. High Output Current: It provides a maximum output current of 1.5A, making it suitable for applications requiring significant power delivery.
3. Low Dropout Voltage: With a maximum dropout voltage of 1.2V, the LM317AT can still maintain regulation even when the input voltage is only slightly higher than the desired output voltage.
4. Thermal Overload Protection: The IC incorporates thermal shutdown and current limit circuitry, protecting the device from overtemperature conditions or short circuits.
5. Output Short-Circuit Protection: In case of a short circuit, the LM317AT limits the output current to a safe value, preventing damage to the IC and the connected circuitry.
6. Ripple Rejection: The LM317AT exhibits excellent ripple rejection characteristics, minimizing the influence of AC voltage components on the output voltage
