PMIC is a very important chip introduced in DDR5. Before that, DRAM was directly powered by the motherboard.

PMICs offer numerous advantages, such as providing more stable power supply, isolating the power supply between the motherboard and memory, and managing it through a single PMIC node. Furthermore, PMICs possess many functions, including precise configuration of the voltage of each power output, write protection, overload protection, and various error detection mechanisms. This allows PMICs to provide users with greater customization possibilities while ensuring stable and safe power supply.

This blog introduces how to Testing DDR5 PMIC based on Tower I3C Host Adapter:

Testing DDR5 PMIC based on Tower I3C Host Adapter