The following figures show the board layout for the TPS51385EVM. TPS51385EVM is with four layers. The top layer contains the main power traces for VIN, VOUT, and GND. Also on the top layer are connections for the pins of the TPS51385 and a large area filled with ground. Most of the signal traces are also located on the top side. The input decoupling capacitors C4, C5, and C6 are located as close to VIN pins and PGND pins of the IC as possible. The input and output connectors, test points, and all of the components are located on the top side. The bottom layer is a ground plane along with signal ground copper fill and the feedback trace from the point of regulation to the top of the resistor divider network. Two inner layers are ground plane.

Figure 4-2 Top Assembly

Figure 4-3 Top Layer

Figure 4-4 Inner1 Layer

Figure 4-5 Inner2 Layer

Figure 4-6 Bottom Layer