The Infineon XDPS21071 is the first flyback controller IC in the industry to introduce ZVS (zero-voltage switching) on the primary side to achieve high efficiency with simplified circuitry and economical switches. By driving an external low voltage switch to induce a negative current to discharge the main high voltage MOSFET, switching losses can be reduced further compared to traditional valley switching type of switching schemes.

High density with high switching frequency
High efficiency with adaptive ZVS operation and frequency law for variable output design
Safe and robust SR operation with DCM operation
Ease of design with dual integrated gate drivers and start-up cell
Ease of configurable design with GUI tools