Biostar TZ77XE4 Motherboard
Voltage Regulator
Contents
The CPU voltage regulator circuit of the Biostar TZ77XE4 has ten phases for the CPU main voltage (Vcc a.k.a. Vcore), two for the CPU VSA voltage (memory controller), and one for the CPU VTT voltage (PCI Express and DMI interfaces). Therefore, it uses a “10+2+1” configuration. The voltage regulator is controlled by an ISL6367 integrated circuit, using an analog design.
Figure 8: Voltage regulator circuit
Figure 9: Voltage regulator circuit
The Biostar TZ77XE4 uses solid electrolytic capacitors. All coils on this motherboard are ferrite-core models, which can provide up to 20% improvement in efficiency.
If you want to learn more about the voltage regulator circuit, please read our tutorial on the subject.