11.1 Layout Guidelines

On a high-K board, TI always recommends to solder the PowerPAD™ onto the thermal land. A thermal land is the area of solder-tinned-copper underneath the PowerPAD package. On a high-K board, the HD3SS3212-Q1 can operate over the full temperature range by soldering the PowerPAD onto the thermal land without vias.

On a low-K board, for the device to operate across the temperature range, the designer must use a 1-oz Cu trace connecting the GND pins to the thermal land. A general PCB design guide for PowerPAD packages is provided in PowerPAD Thermally-Enhanced Package, SLMA002.