Generates +5V → +15V using TPS65131RGER.
I used 7pF for the VPOS capacitor, but the ripple voltage was 1.58V, which was high. When I changed it to 220pF, it improved to about 0.237V.
If I use 220pF, it will be different from the value in the datasheet, so please let me know if there is no problem with 220pF. Please check if there are any problems with temperature characteristics, noise immunity, etc.
