We need to have in a system VSYS fixed at 3,3V, the battery is a lipo.
A solution is to use the internal boost converter and after a buck converter to have the 3,3V but in this case we lose about 10% of energy in the BQ24297 boost and 10% in the buck converter.
Another solution is not to use the internal boost and in VSYS we have the battery voltage, in this case we have to use a Buck-boost converter to have 3,3V at out.
Are these two solutions correct? Can we have other solutions?