The CPU voltage regulator circuit of the MSI B350 TOMAHAWK has six phases for the CPU. The voltage regulator uses a Richtek RT8894A controller chip (digital design). Each phase uses three or four MOSFETs, model PK616BA and PK632BA.
Figure 7: Voltage regulator circuit
The MSI B350 TOMAHAWK uses solid capacitors. All coils on this motherboard are ferrite.
If you want to learn more about the voltage regulator circuit, please read our tutorial on the subject.