High Density 160 A (210 A peak) 4 Phase DC-DC Buck Converter with PMBus Interface Reference Design (PMP9131)

Fixed frequency voltage mode control is used for CPU, Memory and ASIC applications where a predictable frequency and/or synchrnization to an external clock is needed. Four high-current synchronous power stages provide the high currents and low losses needed for these applications. Multi-phase also allows output ripple cancellation and effective higher bandwidth control for a given switching frequency. PMP9131 focuses on ease of electrical testing and ability to make changes "on the fly" thru the PMBus interface. On-board bias supplies and a high speed dynamic load round out the rich test interface.

Возможности

Multiple fully synchronous power stages for high currents & lowest losses Fixed frequency voltage mode control allows for user selection of switching frequency and synchronization to an external clock Output voltage, current limit and fault thresholds/responses can be adjusted "on the fly" thru the PMBus interface Focus of evaluation board is on ease of electrical testing with almost all parts on top side Rich test interface including PMBus socket, 5V & 3.3V biases and high speed dynamic test load Schematic, BOM, layout, and Test Report focusing on thermal performance & load dynamics

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Схемы и диаграммы

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Тесты и симуляция

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Спецификация (BOM)

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High Density 160 A (210 A peak) 4 Phase DC-DC Buck Converter with PMBus Interface Reference Design PMP9131