The printed-circuit-board (PCB) layout is an
important step to maintain the high performance of the TPS62A056x
device family.
- Place the
input and output capacitors and the inductor as
close as possible to the IC. This action keeps the
power traces short. Routing these power traces
direct and wide results in low trace resistance and
low parasitic inductance.
- Connect
the low side of the input and output capacitors
properly to the GND pin to avoid a ground potential
shift.
- The sense
traces connected to FB is a signal trace. Take
special care to avoid noise being induced. Keep
these traces away from SW nodes.
- Use a
common ground. GND layers can be used for
shielding.
See Figure 8-14 for the recommended PCB layout.