We have a MP4559 with almost standard schematic to fix to 3,3V.
The MP4559 has a efficiency maximum at Vin 12V of ~85% at 0,1A to 1A (see datasheet, first page). Minimum input Voltage of ~8-9V is acceptable in our application. The rating input should be 10V to 30V, output max ~1A, maybe we could also get fine with 0,6-0,8A.
Is there a “newer” / “better” device available according to efficiency?
For example the MP9486A has a complete other simulation figure for the efficiency, it has a log scale what makes a comparison difficult. Especially the low current region is better visible in the log scale.
Also a overview of the different models of DCDC converters with view on efficiency would be interesting.