Texas Instruments - Four-phase step-down buck controller with NVM and PMBus interface (TPS53647)

Texas Instruments TPS53647 is a high current, multi-phase, step-down controller with built-in non-volatile memory (NVM) and PMBus interfaces. It is fully compatible with the NexFET power stage (CSD95372BQ5MC). The TPS53647 provides 8-bit BOOT voltage selection, covering output voltages from 0.5V to 2.5V in steps as small as 5mV, making it ideal for high current applications with precise output voltage settings. Advanced control functions, such as the D-CAP + architecture with undershoot reduction (USR) and overshoot reduction (OSR), provide fast transient response, minimal output capacitance, and high efficiency. TPS53647 also provides a novel phase interleaving strategy and dynamic phase shedding technology to improve efficiency at light loads. In addition, the TPS53647 supports PMBus communication interfaces and systems for telemetry of voltage, current, power, temperature and fault conditions. Certain configurations can be programmed via Pintrap or PMBus and stored in non-volatile memory to minimize the number of external components. The TPS53647 is available in a space-saving, thermally enhanced 40-pin QFN package and is specified over the -40C to 125C temperature range.