Other Parts Discussed in Thread: TINA-TI, PMP9752,
Tool/software: TINA-TI or Spice Models
I have a customer who is trying to use the TPS62122 as an inverting buck boost to go from +3.3V to -3.3V (50mA). I took a look at this application note (SLVA478B) as well as PMP9752 and tried to simulate both the circuits in TINA. I've attached my simulation.
However, my output voltage constantly stays 0V and I see a ripple on the output.
Could you comment on this? What am I doing wrong?
Thanks and Regards,
FAE - South Germany