The TPS53679RSBR from Texas Instruments is a dual-channel 6+1/5+2 VR13 D-CAP+™ step-down multiphase controller with NVM and PMBus. It is designed to provide a highly integrated and efficient power management solution for high-performance computing (HPC) and other demanding applications.

The TPS53679RSBR features a number of advanced features that make it ideal for these applications, including:

• D-CAP+™ technology: This proprietary technology from Texas Instruments delivers superior transient performance and load regulation.
• Integrated NVM: The TPS53679RSBR features integrated NVM that can be used to store and recall configuration profiles. This can be useful for applications that require different power settings under different operating conditions.
• PMBus support: The TPS53679RSBR supports the PMBus protocol, which allows for real-time monitoring and control of the device.

The TPS53679RSBR is also highly configurable, allowing it to be tailored to the specific needs of the application. Some of the key configurable parameters include:

• Output voltage: The TPS53679RSBR can support output voltages from 0.6V to 5.5V.
• Switching frequency: The TPS53679RSBR can operate at switching frequencies from 200kHz to 1.2MHz.
• Phase shedding: The TPS53679RSBR supports phase shedding to reduce power consumption at light loads.

The TPS53679RSBR is packaged in a 40-WQFN package and is available in two operating temperature ranges: -40°C to 125°C and -55°C to 125°C.

Here is a more detailed description of some of the key features and benefits of the TPS53679RSBR:

D-CAP+™ technology: D-CAP+™ technology is a proprietary technology from Texas Instruments that delivers superior transient performance and load regulation. This is achieved by combining a number of advanced features, including:

• Adaptive transient response: The TPS53679RSBR continuously monitors the load and adjusts its transient response accordingly. This ensures that the output voltage remains stable, even under the most demanding conditions.
• Dynamic voltage positioning: The TPS53679RSBR can dynamically adjust the output voltage to compensate for changes in the input voltage and load current. This helps to ensure that the output voltage is always within the specified tolerance.

Integrated NVM: The TPS53679RSBR features integrated NVM that can be used to store and recall configuration profiles. This can be useful for applications that require different power settings under different operating conditions. For example, an HPC system may require different power settings for gaming workloads than for machine learning workloads. By storing different configuration profiles in the NVM, the TPS53679RSBR can be quickly and easily switched between these different settings.

PMBus support: The TPS53679RSBR supports the PMBus protocol, which allows for real-time monitoring and control of the device. This can be useful for a variety of purposes, such as:

• Monitoring the output voltage and current: PMBus can be used to monitor the output voltage and current of the TPS53679RSBR in real time. This information can be used to ensure that the device is operating properly and to troubleshoot any problems that may occur.
• Adjusting the output voltage: PMBus can be used to adjust the output voltage of the TPS53679RSBR in real time. This can be useful for applications that need to dynamically adjust the output voltage to meet the needs of the load.
• Sequencing the power supply: PMBus can be used to sequence the power supply with other devices in the system. This can help to ensure that the power supply is turned on and off in the correct order, which can help to prevent damage to the system.

Configurability: The TPS53679RSBR is highly configurable, allowing it to be tailored to the specific needs of the application. Some of the key configurable parameters include:

• Output voltage: The TPS53679RSBR can support output voltages from 0.6V to 5.5V. This makes it suitable for a wide range of applications, including CPUs, GPUs, memory, and other peripherals.
• Switching frequency: The TPS53679RSBR can operate at switching frequencies from 200kHz to 1.2MHz. This allows the designer to select the optimal switching frequency for the application, based on factors such as efficiency, noise, and EMI.
• Phase shedding: The TPS5367