TI expands PMBus power solutions for point-of-load designs

DALLAS, USA: Texas Instruments Inc. (TI) has introduced two 20-V step-down voltage regulators with PMBus digital interface and adaptive voltage scaling capability for non-isolated point-of-load designs.

Together with the National system power protection and management products, TI provides the design engineer with complete single-, dual- and multi-rail, multi-phase PMBus solutions -- allowing telecom and server designers to intelligently monitor, protect and manage the state of health of their power systems.

TI's 2-MHz TPS40400 single-channel controller with a 3-V to 20-V input range and the new 1.2-MHz TPS40422 dual-channel or multi-phase controller with 4.5-V to 20-V input voltage range combine high-performance analog voltage regulation with digital control to achieve greater than 90-percent efficiency, tight output voltage accuracy and design flexibility.

The devices' unique adaptive voltage scaling capability saves up to 25-percent more power than previous solutions, and eliminates the need for up to 12 external components. The controllers achieve even greater power efficiency when paired with TI's NexFET power MOSFETs, such as the CSD87350Q5D.

"Telecom, cloud computing data centers and mobile internet infrastructure applications require high-performance, low-risk digital power management solutions," said Niklas Fallgren, vice president and general manager of OEM Embedded Power at GE Energy. "TI's integrated digital power controllers help our DLynx™ point-of-load modules deliver real-time diagnostics and monitoring with adaptive voltage scaling, while ensuring PMBus interoperability."

Designers configure the TPS40400 or TPS40422's parameters to monitor and control the power system using TI's easy-to-use graphical user interface software tool. In addition, TI's SwitcherPro tool makes it easy to develop internally and externally compensated designs in less than one minute.