Just as in these queries, I can't get TPS560430X3F, the fixed 3.3V version of the Simple Switcher, to work.
https://e2e.ti.com/support/power-management/f/196/t/715590
I have tried all these with the FB pin:
- leaving it open
- connecting it to SW
- connecting it after the inductor
- connecting it to a resistor divider after the inductor with values chosen from WEBBENCH designer for 3.3V
None of these work, and they all fail in different ways.
What is the right way to the fixed 3.3V version of the part to work?