Other Parts Discussed in Thread: TPS2117
Tool/software:
Hello,
I previously made a similar topic here: https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1385832/tps564247-tps564247-schematic-and-layout-check
and I got the results to be 5v mv p-p which is fantastic! really beyond my expectations even at full load.
Here are the pictures: https://slow.pics/c/9yzkleI3
However, i made the same circuit but for another project. besides the shape and so on, there are some changes seen below.
changes are:
1- taking 5v feedback away from power trace itself, so that it is away from return current path. previously it was crossing the power path.
2- added grounding vias around the inductors.
3- the board is slightly less wide. this made the distance between the feedback trace and 2 inductors a bit smaller. still there are shielding ground vias all the way.
please check the layout and inform me if i need anything + please check previous thread to know where this started. if it passed i will convert it into a real product so this is important to me.
thanks
