The LM317T is a popular variable voltage regulator that is used in power regulation circuits by hobbyists and professionals alike. The output voltage of LM317 can be adjusted from 1.2V to 37V with a maximum output current rating of 1.5A. The IC is commonly used for voltage regulation and current regulation circuits in chargers and other power modules. It comes in a breadboard friendly TO220 package and required very simple external components, few resistors, and a capacitor to operate as a function circuit. It can be used in positive voltage regulator circuits, Variable Power Circuits like battery chargers, and are commonly used in Desktop PC, DVDs, and other consumer products.
- Output Voltage: 1.25V to 37V
- Output Current: 1.5A (Max)
- Recommended difference between input and output voltage: 15V
- TO-220 Package
This is a 3-legged device with pins named Adjust Pin, Input Voltage Pin, and Output Voltage Pin. To use LM317T, you have to supply the input voltage to an input pin, and using a potential divider circuit, you have to provide the voltage to adjust the voltage pin to regulate the voltage at the output pin. To know more check out this.
12V Battery Charger Circuit Using LM317
Variable Voltage Circuit using LM317
1×LM317T Adjustable Voltage Regulator.
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