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Supermicro taps Infineon for data centre power

Business news |
By Nick Flaherty


Super Micro Computer is using high efficiency power stages from Infineon Technologies to reduce losses in data centre servers.

Supermicro is using the OptiMOS TDA21490 and TDA21535 power stages for its MicroBlade family. This supports a variety of Intel processors, up to 112 x 1-socket Atom nodes, 56 x 1-socket Xeon nodes, and 28 x 2-socket Xeon nodes in 6U.

The 6U system can be deployed at scale and provisioned in volume with data centre-friendly features and designs, including free-air cooling and Battery Backup Power (BBP). The MicroBlade can provide up to 86 percent power efficiency improvement and 56 percent density improvement when compared to standard 1U rackmount servers.

The TDA21490 voltage regulator powers high-performance xPUs, ASICs and SoCs used in server, memory, AI and networking applications. The OptiMOS power MOSFETs in a thermally efficient package enable a low quiescent current driver with a deep-sleep mode to further increase efficiency at light loads, and provides current monitoring that significantly improves system performance. In addition to the robust OptiMOS MOSFET technology, the TDA21490’s fault protection provides robustness and reliability.

The TDA21535 incorporates a low quiescent current synchronous buck-gate driver IC in a co-package with high- and low-side MOSFETs, and an active diode structure that achieves low values for the body-diode forward voltage (Vsd) similar to a Schottky barrier diode with very little reverse recovery charge.

The internal MOSFET current measurement algorithm with temperature compensation in the TDA21535 achieves superior current measurement accuracy compared to best-in-class controller-based induction DC resistance measurement methods.

Operation at a switching frequency of up to 1.5 MHz enables high-performance transient response and allows output inductance and capacitance to be reduced while maintaining high efficiency.

 “When developing our green computing platforms, we choose key vendors that share our focus on energy efficiency to reduce power consumption,” said Manhtien Phan, Vice President, Server Technology, Supermicro. “With Supermicro solutions and Infineon technologies, you can decrease system power consumption, which lowers overall data centre power utilization, minimizing impact to the environment.”

“Data centre cooling is responsible for a large portion of energy consumption. Our energy-efficient TDA21490 and TDA21535 power stages are ideal for data centres to reduce heat dissipation,” said Adam White, President of Infineon’s Power & Sensor Systems Division.

“These semiconductors provide high-temperature tolerance and excellent reliability to enable free air cooling for the server to further improve the power usage effectiveness to the customer’s data centre and deliver more energy efficiency,” he said.

Power usage effectiveness (PUE) is a key measure, the ration of the total power delivered to the data centre to the actual power consumed by the IT equipment. An ideal PUE value is 1.0, which means that all the power required for a data centre is in the actual computing devices, not in overhead costs such as cooling or power conversion.

IT and data centre managers reported an average annual PUE ratio of 1.57 at their largest data centre, indicating there is room for improvement for uncontrolled cooling and power costs.

www.supermicro.com; www.infineon.com/green-energy

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