At the top left section on page 18 it is mentioned that an external ramp (Rramp and Cr) is needed when using low ESR capacitors.
Please provide details on how to connect and calculate Rramp and Cr.
Also on page 17 the feedback network contains Rt and Cf. Please clarify the purpose on these.
Finally I found an error in the datasheet. On page 15 the pin 15 is described as “No connection. NC must be left floating.”.
But in the layout in page 19 the pin 15 is connected to pin 14.