High-efficiency power management solutions centered on 48V architecture and polymer capacitors are emerging as key technologies for ensuring both stability and profitability in data centers.

According to Mouser Electronics' recent report, "Optimizing Efficiency as Data Centers Shift to 48V Power," data centers, where electricity costs accounted for a significant portion of operating expenses, are now entering a structure where it is difficult to secure profitability without efficient power management.

The importance of power semiconductors is being highlighted again, especially amidst the explosive increase in power consumption in data centers along with the rapid spread of generative artificial intelligence (GenAI).

Traditional data centers have been designed around a 12V power bus, but the rise of high-performance computing (HPC) and AI workloads has required higher currents.

The problem is that as the current increases, the resistive loss increases squarely. Accordingly, the industry is accelerating the transition to 48V power architecture.

Using a 48V bus reduces current by a factor of four when supplying the same power, reducing resistive losses by a factor of 16.

Additionally, 48V systems can eliminate the multi-step voltage conversion process required in 12V-based systems, reducing conversion losses and increasing computing density by freeing up space within server racks.

This is particularly advantageous in high-performance, high-density environments such as AI, edge computing, and hyperscale data centers.

Continuous system operation of a data center is directly related to profitability.

On the other hand, the research result that 52% of total system downtime is caused by power system failure clearly shows the importance of power management.

Especially in the GenAI environment, sudden increases in computational demand can cause power supply instability, and if the supply voltage goes out of the acceptable range, the processor can automatically shut down.

To prevent this situation, it is crucial to ensure the stability of the power supply, and for this purpose, selecting the right capacitor for each power stage is important.

Among power semiconductors, capacitors are essential components for stabilizing current supply and preventing voltage drops. In particular, polymer capacitors offer lower ESR (equivalent series resistance) than conventional electrolytic capacitors, reducing power loss and heat generation, and alleviating thermal management burden. It also maintains stable performance despite temperature and frequency changes, and guarantees a long lifespan even in a high-frequency environment.

Panasonic's SP-Cap™ series is a representative product line of these polymer capacitors, which are used as input and output capacitors in DC/DC converters and VRMs (voltage regulation modules).

It is optimized for data center environments with ultra-low ESR, high-temperature resistance, and a low-profile design, and supports stable power supply in various fields such as AI servers, edge computing, and 5G base stations.

With global electricity demand projected to reach 945 TWh by 2030 due to advancements in AI, data centers are evolving beyond mere server space into hubs of advanced power infrastructure.

Power semiconductors are a key technology for this transformation, simultaneously ensuring efficiency and stability while enhancing the profitability and sustainability of data centers.