With the exponential growth in AI computing power demands, the requirements for stable power supply to the DC-DC converter of server motherboards are becoming increasingly stringent.
The explosive growth in AI data processing needs places higher demands on the power regulation module of server motherboards. As a core power conversion component, the DC-DC converter must accurately convert 12V high-voltage DC power into the low-voltage power (such as 1V, 1.2V) required by components such as the CPU and GPU. Its stability directly determines the reliability of AI computing power.
Yongming Electronics’ NPC series of multilayer polymer solid aluminum electrolytic capacitors, with their ultra-low ESR values, perfectly match the stringent requirements of server motherboard DC-DC converters.
01 Ultra-Low ESR: The Cornerstone of AI Server Stability
The single-machine current generated by a server during operation can reach over 130A. At this time, capacitors need to play a crucial role in energy storage and filtering.
ymin capacitors, with their extremely low equivalent series resistance (ESR), can quickly respond to the instantaneous changes in current demand from AI chips, ensuring a stable current output even under fluctuating loads.
Low ESR not only effectively reduces power loss and improves power conversion efficiency but also reduces heat generation, ensuring continuous and efficient server operation under high loads and complex application environments.
02 Ripple Current Tolerance: Key to Handling Sudden Loads
When the computing load of AI servers fluctuates between peaks and troughs, the power supply system needs strong instantaneous overload capacity.
YMIN capacitors possess excellent ripple current tolerance; a single capacitor can withstand ultra-large inrush currents exceeding 20A, helping the server power supply to calmly handle overload issues and avoid system instability caused by sudden current changes.
Strong ripple current tolerance ensures that the capacitors operate stably and reliably in harsh environments, effectively resisting stress damage caused by sudden current changes and extending the server’s lifespan.
03 Miniaturized Solutions for High-Temperature Environments
To meet the increasing power density demands of AI servers, YMIN capacitors employ a miniaturized design, providing greater energy storage capacity within limited space.
The compact design aligns with the trend towards thinner servers, saving valuable space in high-density server chassis.
ymin capacitors maintain an ultra-long lifespan of over 3000 hours even at 105℃, meeting the standard lifespan of 2000 hours at 125℃, and enabling 24/7 uninterrupted operation.
This characteristic allows the capacitors to withstand the high-temperature environment of data centers, ensuring long-term stable system operation.
The miniaturization, high capacitance density, low ESR, and long lifespan of YMIN capacitors make them an ideal choice for DC-DC converters on AI server motherboards. With the widespread application of third-generation semiconductor materials, server power supplies require higher-performance capacitors.
YMIN capacitors have been successfully applied in leading global 4.5kW and 8.5kW server power supplies, achieving efficiencies exceeding 97%, providing reliable support for the growing power demands of AI data centers.
Post time: Dec-04-2025