LM1117 Output Voltage Calculator

About the LM1117 Voltage Regulator

The LM1117 is a low-dropout voltage regulator capable of supplying up to 800mA of output current. It's commonly used in power supply circuits to provide a stable output voltage.

How to Use This Calculator

  1. Enter the values for R1 and R2 resistors
  2. Select the appropriate units (Ω, kΩ, mΩ, or MΩ)
  3. Click "Calculate" to determine the output voltage

Formula Used

The output voltage is calculated using the formula:

\[ V_{\text{out}} = 1.25 \times \left(1 + \frac{R_2}{R_1}\right) \]

Typical Applications

Enter values and click Calculate
LM1117 Circuit Diagram
\[ V_{\text{out}} = 1.25 \times \left(1 + \frac{R_2}{R_1}\right) \]
View Datasheet