Part Number:BQ25120
Hi
In another topic this IC was recommended to me:
It comes only in 0.4 pin pitch BGA packaging.
I'm using a PCB with 8D class which does not handle such tiny via.
But then I noticed that the pads were arranged in a interesting way, so I wanted to see if it can actually be done without using any via at all.
Here is an image of what I came up with:
Its just a paint sketch, but it illustrates what I had in mind.
It sacrifices some features, like TS, but I did not plan to use it anyway, since I already have a dedicated temperature sensor for other reasons.
The question now is can this work, or does it introduce problems with the basic functionality. The buck switching is also unused.
Also, I find it a bit unclear, what is the output voltage of the LDO when the IC has not been initialized and tied with reset like shown above?