2 layers21 × 11 mm

Boards in 1 GitHub repository, designed in KiCad, that use the ETA8121S2G by etasolution (-40℃~+85℃ 1 1MHz 2A 4.2V~18V 800mV~12V Adjustable Buck Buck Built-in Yes SOT23-6 DC-DC Converters ROHS). See how each wires it, with its parts, size, README and files; the ETA8121S2G’s symbol, footprint and pinout are on its own page.
