External catch diode is mandatory — budget the BOM line
This is a non-synchronous buck, so an external Schottky rectifier is required for the catch diode. There is no internal FET for the low-side — the inductor freewheels through the external diode. Pick a 1A-rated Schottky with a reverse voltage at least equal to the maximum input voltage (76V). A 100V-rated part gives headroom.
The ROHS3 compliance covers the current EU exemption regime.
Package and mounting — 8-SOIC, surface-mount, tape-and-reel
The 8-SOIC footprint is standard — no thermal pad underneath, so the primary heat path is through the leads into the PCB copper. For 1A output at high input-to-output differential, ensure adequate copper area on the drain-connected pins to keep junction temperature below the 125°C maximum.