![]() We can provide input voltage in the range of 3v-40v DC and i t can give output voltage of 1.25 v to 37v which we can vary according to the need by using two external resistors on adjustable PIN of LM317. Its operating and storage temperature is in range of -55 to 150 ☌, and provide a maximum output current of 2.2A. ![]() It’s having a typical line and load regulation of 0.1%. If we disconnect the adjustable terminal still LM317 will helpful in Overload protection. It can also provide float operation for High voltage application. The LM317 IC helps in current limiting, thermal overload protection and safe operating area protection. It’s an adjustable three-terminal voltage regulator IC, with a high output current value of 1.5A. The output voltage is varied by varying the resistor connected to LM317’s adjustable pin. With a small circuitry attached with LM317 we can get variable voltage up to 37v with 1.5A max current. In this tutorial we will show you how to get the variable regulated Voltage from the LM317 IC. But what if need to vary the power supply voltage, so here we have Variable Voltage Regulator IC LM317. We have 78XX (7805, 7806, 7812 etc) series voltage regulators for positive power supply and 79XX for negative power supply. ![]() They provide a fixed regulated power supply. Whenever we need a constant and specific value of voltage without fluctuation we use voltage regulator IC.
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June 2023
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