10.1.3 SWS Pin
Minimize potential stray noise coupling from SWS pin to noise-sensitive signals.
- Keep some distance between SWS pin and other connections.
- The RC damping network (Rsws, Csws) and the TVS diode (DSWS) should be as close to the source pin of QS as possible instead of SWS pin, so the gate-to-source pin of QS can be effectively protected.
- Keep the return path for di/dt current through CSWS and DSWS separate from the IC local GND and FB signal return paths.