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A digital multiphase controller provides an improved system with greater performance and optimization vs. traditional competing analog controller solutions in the market. Due to the nature of being a full digital implementation, all the device level tuning and configuration is achieved in software using Renesas' PowerNavigator software. The highly flexible digital design enables fast time to market, as an entire power solution can be realized in minutes vs. spending days managing complex RC tables and board re-work. Power density is increased thanks to the on-chip NVM, non-volatile memory, for storing user configuration settings. The Renesas digital multiphase controllers can store up to eight unique configuration settings per device. This allows end users to make changes as needed for deployed systems without recalling to swap out controllers or hardware. With full telemetry support, which includes features like current information per phase, realizing full system control and monitoring has never been easier. Additionally, the power engineer can take advantage of Renesas' unique digital current modulator, which supports lossless input current sensing. This further simplifies the design and minimizes BOM content at the system level. At the heart of the control loop is Renesas' patented synthetic current modulator. The next few slides will review the underlying benefits of Renesas' full digital implementation, which leads to fast transient response and low output capacitance vs. the competition.
