Realtek RTL8762C Hardware Instructions page 24

The switching signal LX
must be short and wide.
Put more than one ground
via at the ground
Buck SWR LX goes through inductor and capacitor first 
power via should be after the capacitor.
CORRECT
RTL8762C Evaluation Board User Manual
Inductor
Cap
NG
Buck SWR through inductor  add via
before the capacitor.
The LX must go through
the inductor first, then
through the capacitor and
finally through branch out!!
The capacitor must place
next to the inductor
23