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An array of parallel buck power stages makes up a multiphase buck regulator. A phase is the name given to these elements taken as a whole. Shared input and output capacitors are used by these parallel-connected phases.
A system used to control closed-loop feedback systems is known as a digital controller. For the purpose of regulating, modifying, or correcting the behaviour of the controlled system, the controller employs algebraic algorithms like filters and compensation.
The Global Digital Multiphase Controller Market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
Digital Multiphase Controllers are now available from STMicroelectronics. The PM6773 and PM6776 step-down controllers from STMicroelectronics use cutting-edge low-voltage, high-current microprocessors, ASICs, and field-programmable devices to address the demands for more precise and energy-efficient power supply in servers and data centres.
In particular, ST’s family of digital step-down controllers for Intel VR13 platforms is expanded by the new ICs, which are made to power Intel Skylake CPUs and DDR4 memories.
The dual-channel, multiphase 3+1 (PM6773) and 6+1 (PM6776) VR13 Serial Voltage ID (SVID)-compliant ICs are 12V-input devices. They have embedded Non-Volatile Memory (NVM) for storing configuration information and are PMBusTM programmable.
Voltage, current, power, temperature, and fault status reporting are also possible through the PMBus communication interface. Both gadgets also have a useful black-box recorder feature.
The controllers use Variable-Frequency Diode Emulations (VFDE) and Dynamic Phase Management (DPM) to ensure high efficiency under all load conditions.
The controllers also use ST’s high-performance Voltage-Controlled Constant-On-Time (STV COT®) digital-control-loop technology, which enables fast transient response and low output capacitance. There is also built-in protection against feedback disconnections, under- and over-voltage, and load overcurrent.
When using the new PM677x devices, engineers can speed up the design of the VR13 voltage regulator for Skylake by programming and monitoring all important parameters, such as control-loop response, load-line, and switching frequency.
ST’s cutting-edge software tools are available to all chosen customers. The PM6773 and PM6776 are currently in production and are offered in VFQFPN48 6x6mm and VFQFPN40 5x5mm, respectively, with packaging and pin-out compatibility thanks to dual sourcing with leading companies.
