We would like to use the TPS40303 with Vin tied to a 3.3V rail, can we power Vdd with a dedicated 5.0V supply (e.g. REG711)?
My intent is to increase the BP voltage from approx. 3.3V to 5.0V and thus obtain higher power efficiency (lower MOSFET RDSon).
[High side MOSFET is the IRF7821/ Low side is the IRF7832.]