Patrick,
Yes, it can, but it will require a new transformer and other components changes.
Are you going to use the secondary side regulation or primary side regulation? PSR requires a transformer with good coupling between the bias and secondary windings…
No the TPS23753 is not an integrated solution for DCDC converter. The TPS23753A is just the controller for the DCDC converter. Attached is reference design for TPS23753A (PMP11271) which uses the TPS23753A as the controller to drive the DCDC converter…
