U3V9F24 20V Modification

I would like to modify U3V9F24 for 20V output. What resistors should I change?

Hello.

The output voltage of that regulator is set by the ratio of R1 and R2 (shown below) and governed by the following equation:

VOUT = 1.233 \times (\frac{R1}{R2} + 1)

On the U3V9F24 R1 and R2 are 300k and 16.2k respectively. I recommend keeping R2 under 150kΩ.

Brandon