Please explain which components must be mounted in the same layer as the IC, and which can be mounted on the opposite surface.|FAQ|ROHM Semiconductor

ROHM FAQ

FAQ's

Please explain which components must be mounted in the same layer as the IC, and which can be mounted on the opposite surface.
- It is recommended that components that pass a switching current be mounted in the same layer as the IC. This applies to inductors, input capacitors, output capacitors, and diodes (in the case of non-synchronous rectification). When there is an external switching transistor, it is recommended that the switching transistor also be on the same surface as the IC.