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Texas Instruments - Step-down driverless buck controller with NVM and PMBus interface for AVS (TPS53667)

Post Date: 2016-12-18Manufacturer: Texas Instruments

Summary

TPS53667, from Texas Instruments, is a high-current, multi-phase, step-down controller.

Product Image

TPS53667, from Texas Instruments, is a high-current, multi-phase, step-down controller. The device offers built-in non volatile memory (NVM) and PMBus interface. It is compatible with the NexFET power stages (CSD9549x). The device provides 8-bit BOOT voltage selection covering output voltage from 0.5V to 2.5V, with steps as small as 5mV, which is ideal for high current application with accurate output voltage setting. Advanced control features such as D-CAP+ architecture with undershoot reduction (USR) and overshoot reduction (OSR) provide fast transient response, lowest output capacitance, and high efficiency.

The device also provides novel phase interleaving strategy and dynamic phase shedding for efficiency improvement at light loads. In addition, the device supports the PMBus communication interface with systems for telemetry of voltage, current, power, temperature, and fault conditions. Some of the configurations can be programmed by pinstrap or PMBus and stored in non-volatile memory to minimise the external component count.

The device is offered in a space saving, thermally enhanced 40-pin QFN package and is rated to operate from –40C to 125C.

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