Wednesday, September 28, 2022

OptiMOS 5 IPOL Buck Regulators For Next-Gen Server And Telecom Applications

By Jay Soni

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Infineon introduces OptiMOS integrated POL DC-DC regulators with a fast COT engine plus SVID and I²C/PMBus digital interfaces.

As technology advances and scales down to wearables, the data complexity increases and so does its size. This data is integrated into massive data centers. And the demand for faster and better performance will continue to increase as well. Hence the development of high power density and energy-efficient solutions for smart enterprise systems have also become challenging.

OptiMOS integrated POL by Infineon Technologies. | Courtesy of Infineon Technologies

Infineon Technologies have introduced a new family of OptiMOS 5 IPOL buck regulators with VR14-compliant SVID standard and I²C/PMBus digital interfaces for Intel/AMD server CPUs and network ASICs/FPGAs. Measuring in a 5 x 6 mm² PQFN package, these devices are a highly efficient solution for next-generation server, storage, telecom, and datacom applications, as well as distributed power systems.

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The OptiMOS IPOL single-voltage synchronous buck regulator TDA38640 supports up to 40 A output current. The device is incorporated 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 making any significant changes to the bill of materials (BOM).

The variants, TDA38740 and TDA38725 digital IPOL buck regulators support up to 40 A and 25 A output current. They come with a PMBus interface.  All these devices use Infineon’s proprietary fast constant on time (COT) PWM engine to deliver industry-leading transient performance while simplifying the design development.

Features

  • PWM controller and OptiMOS FETs with integrated bootstrap diode for highly-efficient power delivery.
  • Broad input and output voltage range
  • Programmable switching frequencies : 400 kHz to 2 MHz.
  • Multiple time programming (MTP) memory allows customization during design and high-volume manufacturing
  • Digitally programmable load line

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