MSI A75MA-G55 Motherboard
Voltage Regulator
Contents
The CPU voltage regulator circuit of the MSI A75MA-G55 has three phases for the CPU main voltage (VDD a.k.a. Vcore), one for the CPU VDDNB voltage (integrated memory controller), and two for the CPU VDDP voltage (integrated video controller). Therefore, it uses a “3+1+2” configuration.
Figure 7: Voltage regulator circuit
Figure 8: Voltage regulator circuit
This motherboard uses solid ferrite-core coils, which present less energy loss than iron-core coils (i.e., they improve efficiency), solid capacitors, and low RDS(on) transistors (i.e., higher efficiency).
If you want to learn more about the voltage regulator circuit, please read our tutorial on the subject.