Tool/software:
Dear Friend
My application require a fixed Vout at 3.3V, while Vin is specified within 3V -- 12V. Therefore I need a buck-booster who can start work when Vin = 3V, and get Vout=3.3V.
TPS55285 datasheet said: "3.0V Minimum input voltage for start-up". It seems perfect, however, the datasheet also said: Internal LDO get 5.2V for Vcc from either Vin or Vout.
from table 6-1, the LDO will be connected to Vin, Question: how TPS55285 works when Vin = 3V?
if TPS55285 don't work, please recommend a buck-booster that work in such condition.
Thanks
Tony
