DC/DC regulators on the backside of the PCB clear room for digital ICs

摘要

It makes sense to shorten distances between ICs that are in constant communication with each other and add more layers to the PCB which constitute denser circuit boards. Doing so starts another battle: the fight to fit as many ICs and connectors on top of PCBs without increasing the cost of the end-product. The cost is largely associated with the size and thickness of the PCB. For smaller size boards and fewer PCB layers, sometimes the question becomes which components need to be removed or which functions must be eliminated to reduce the manufacturing cost, though the resale value of the device may be in jeopardy. It's a fight to fit performance and features.