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AI power management DC-DC regulator adds fast PWM engine

New Products |
By Nick Flaherty


Infineon Technologies has launched its next generation of point of load DC-DC regulator for the power management of AI chips.

As artificial intelligence (AI) technology is integrated into massive data centres, the demand for higher performance will continue to increase. 

The latest OptiMOS5 POL buck regulators add Infineon’s proprietary fast constant on time (COT) pulse width modulation (PWM) engine to enhance the transient performance while simplifying the design development with OptiMOS FETs with integrated bootstrap diode.

The 5 x 6 mm² PQFN package allows the integrated devices to supper Intel and AMD CPUS as well as ASICs and FPGAs in next-generation server, storage, telecom, and datacom applications, as well as distributed power systems.

The OptiMOS IPOL single-voltage synchronous buck regulator TDA38640 supports up to 40 A output current. The device 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).

The devices also provide the required versatility by operating in a broad input and output voltage range while offering programmable switching frequencies from 400 kHz to 2 MHz.

A multiple time programming (MTP) memory allows customization during design and high-volume manufacturing, significantly reducing design cycles and time-to-market. They also offer a digitally programmable load line that can be set via configuration registers without external components, resulting in a simplified BOM.

The TDA38740 and TDA38725 digital IPOL buck regulators support up to 40 A and 25 A output current, respectively and come with a PMBus interface.

The device configuration can be easily defined using Infineon’s XDP Designer GUI and is stored in the on-chip memory.

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

www.infineon.com/ipol-digital

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