DocID17785 Rev 3

15/22

STOD03A

Application information

22

7.2

Recommended PCB layout

The STOD03A is a high frequency power switching device and therefore requires a proper

PCB layout in order to obtain the necessary stability and optimize line/load regulation and

output voltage ripple.

In order to minimize ground noise, a common ground node for power ground and a different

one for analog ground must be used. In the recommended layout, the AGND node is placed

by a separated layer routing on the bottom through vias.

The exposed pad is connected to AGND through vias.

Detailed description

Figure 14. Top layer and top silkscreen top

Figure 15. Bottom layer and silkscreen top