The 10uF decoupling capacitor (C8)
need to be placed as close as possible to the PP5V pins of TPS25751S. DO NOT use traces
for PP5V. The PP5V power plane needs to be sized to support up to 3.6A (up to 3A for
sourcing, 600mA for Vconn). When connecting the PP5V pins (pins 28 and 29) to the 5V
power plane, use a minimum of 4 vias in parallel and close to the device to improve
current sharing. Minimize the bottle necks cause by other vias or traces, large bottle
necks reduces the efficiency of the power plane. The bulk capacitors (C6, C7, and C9)
represent capacitances from the system 5V rail, these are placed further away from
TPS25751S on the same PP5V power plane. Refer to figure 10-21 and figure 10-22 for
placement and trace reference.