Adjustable voltage regulator LM317 calculator
First you have to enter the desired output voltage. The button Start is used to start the calculation.
The results will be shown in the result table below.
| Name | Description | Value |
|---|---|---|
| V_out | Output voltage | V |
| E series | preferred values | |
Result
| R2 | output voltage | ||
|---|---|---|---|
| calculated | |||
| single resistor | |||
| two resistors parallel | |||
| two resistors series | |||
| R2 | output voltage Vref = 1.25V (typ.) | output voltage Vref = 1.2V (min.) | output voltage Vref = 1.3V (max.) |
|---|---|---|---|