SLVUCN9 September 2023 TPSM365R15
The top silkscreen (that is, J4) differs between the TPSM365R15EVM and TPSM365R15FEVM, which is the only difference between the layer plots (no routing).
Reserved for solid ground plane for low-noise and optimized thermal design.
Primary routing layer
Reserved for PI filter and non-critical passive component placement (minus input capacitor). An input capacitor is placed on the bottom side of the PCB as this placement provides a slightly lower input loop inductance. A single layer implementation is satisfactory as well.