Infineon enhances OptiMOS for high performance data centres

As data centres continue to evolve, with the inclusion of AI, for example, users demand higher performance, high power density and energy-efficiency for smart enterprise systems. The OptiMOS 5 IPOL buck regulators are VR14-compliant SVID standard and I²C/PMBus digital interfaces for Intel/AMD server CPUs and network ASICs/FPGAs. 

Housed in a 5 x 6mm² PQFN package, the devices are efficient for next-generation server, storage, telecomms and datacomms applications, as well as distributed power systems, advised Infineon.

The family consists of the OptiMOS IPOL single-voltage synchronous buck regulator, the TDA38640, which supports up to 40A output current. It comes with Intel SVID and I²C/PMBus digital interfaces and can be used for Intel VR12, VR12.5, VR13, VR14, IMPVP8 designs, and DDR memory without significant changes to the bill of materials (BoM), explained Infineon. The TDA38740 and TDA38725 digital IPOL buck regulators support up to 40A and 25A output current, respectively and come with a PMBus interface. All three use Infineon’s proprietary fast constant on time (COT) PWM engine for transient performance and simplified design development.

The onboard PWM controller and OptiMOS FETs with integrated bootstrap diode minimise the footprint and provide the required versatility by operating in a broad input and output voltage range while offering programmable switching frequencies from 400kHz to 2.0MHz. A multiple time programming (MTP) memory allows customisation during design and high volume manufacturing, significantly reducing design cycles and time to market, claimed Infineon. They also offer a digitally programmable load line that can be set via configuration registers without external components, simplifying the BoM. The device configuration can be defined using Infineon’s XDP Designer GUI and is stored in the on-chip memory.

The OptiMOS fully integrated PoL single-voltage synchronous buck regulators TDA38640, TDA38740, and TDA38725 are available now.

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