Hi Gents,
I'm using the TPS55330 to produce 15V with a source coming from a li-ion battery with a voltage from 4.2V down to 3.0V.
I've based my design on the WEBENCH simulator informations with a Vin range from 2.9 to 4.2V.
The board is working fine but when Vin is below 3.5V the Vout cames OFF, but in order to fully use my battery capacity I need to keep using my Vout until 3V.
Bellow my schematic, the MOSFET on vin line is acting like a switch to prevent the battery to be discharged when the TPS55330 is disabled.
If one of you have an idea from where my problem could come?
Regads
Bruno
