Server Power Supply

Replace server power supply unit (PSU) in server rack room

High‑Efficiency Power for Enterprise Servers

Server's power supply (PSU) is essential for powering enterprise servers and data centers. Choosing the right PSU involves careful consideration of wattage, form factor and compliance standards.

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High-Efficiency Power for AI Servers

As the demand for AI workload grows, the number of servers keeps increasing while simultaneously stepping up computing capabilities. The rising number of blade servers and rack servers in small form factors to meet computing requirements leads to higher power consumption. Modern server PSUs offer high efficiency, redundancy and digital monitoring, making them ideal for AI, cloud and HPC workloads. onsemi develops innovative power supply solutions used in high-power server PSUs (800V HVDC) and other large loads while maximizing energy savings.

The comprehensive wide-bandgap (WBG) technologies from onsemi, including Silicon Carbide (EliteSiC) and vertical Gallium Nitride (GaN), achieve superior energy efficiency, power density and thermal performance for highly efficient power supply solutions.

Products

SiC Cascode JFETs
Our high-performance SiC Cascode JFETs utilize a unique cascode configuration, integrating a high-performance SiC fast JFET with a cascode-optimized Si-MOSFET.
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SiC MOSFETs
EliteSiC discrete MOSFETs deliver low switching and conduction losses at high voltage. Compare devices by voltage, resistance, package and generation.
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Gallium Nitride (GaN) FETs
GaNEXUSTM Gallium Nitride (GaN) FETs are enhancement‑mode discrete GaN HEMTs that leverage wide‑bandgap material properties to deliver fast switching, low gate and output charge, and superior efficiency compared to silicon power transistors. These characteristics enable higher operating frequencies, reduced magnetics, and increased power density across low/medium, high and ultra-high voltage power conversion applications.
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Gallium Nitride (GaN) Integrated Power
GaNEXUSTM Integrated Power includes GaNEXUS Drive, GaNEXUS Smart, and GaNEXUS Control, where each combines a GaN switch together with potential combination of additional features: gate driver, current sensing, protection, and control, in a single device to simplify design, reduce parasitics, and accelerate time to market.
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Low/Medium Voltage MOSFETs
Portfolio of comprehensive range of Low-medium voltage power Mosfets that delivers superior performance and reliability for switching applications. Our cutting-edge PowerTrench® T10 technology delivers industry leading RDS, higher power density, reduced switching losses and better thermal performance.
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Gate Drivers
GaN, IGBT, FET, MOSFET, H-Bridge MOSFET, and SiC MOSFET inverting and non-inverting drivers ideal for switching applications.
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Power Factor Controllers
Variable CRM, CCM, and DCM power factor controllers that enable power factor correction.
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Offline Controllers
Offline switching controllers; including fixed-frequency flyback & forward PWM controllers, and current mode and voltage mode controllers.
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Secondary Side Controllers
Secondary side, synchronous rectification controllers.
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EliteSiC Diodes
EliteSiC Schottky diodes provide fast switching and low losses in high voltage applications. Use parametric search to select devices for efficient power designs.
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Offline Regulators
Offline, switching regulators, including current mode, voltage mode, and gated oscillator devices.
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Documents

Tutorial
Introducing Vertical GaN Tutorial
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Application Notes
Choosing the Correct Semiconductor Technology for 800 V
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Application Notes
EliteSiC JFET Based High Voltage Hot‐Swap Application
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Reference Manuals
Vertical GaN (VGaN) Fact Sheet
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White Papers
Comparing Power Supply Technologies in AI Data Centers and Telecom
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Application Notes
Design of a Flyback Converter Using Source‐Switched SiC JFET
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Application Notes
Paralleling SiC Cascode JFETs
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Application Notes
How to Achieve 99.3% Efficiency in 3.6 kW Totem-pole PFC Using 750 V Gen 4 SiC Cascode JFETs​
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White Papers
SiC Cascode JFETs: Easing the Transition from Silicon to Silicon Carbide
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Tutorial
Pairing Gate Drivers to EliteSiC Tutorial
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White Papers
Advantages of Integrated GaN Devices in AC-DC Solutions
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Evaluation Boards/Kits

Evaluation Board
NCP1681CCM1KWGEVB
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Evaluation Board
NCP1681MM500WGEVB
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Evaluation Board
NCP1680CRM300WGEVB
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Evaluation Board
NCP13994MM360GEVB
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Evaluation Board
NCP-NCV51152D2PAK7LGEVB
EVB with D2PAK-7L type Power S/W for NCP51152BADR2G / NCP51152CADR2G
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Evaluation Board
NCP-NCV51561TO2474LGEVB
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server power supply