TPS53679RSBR

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TPS53679RSBR is a special purpose voltage regulator developed by Texas Instruments. This device is specifically designed to provide clean, efficient and reliable power solution of up to 24A. It is an ideal choice for applications such as System On Chip (SoC)/Digital Signal Processor (DSP), PC/Server and Automotive power applications.

TPS53679RSBR Application Field

TPS53679RSBR mainly targets for processor and logic core power supply for applications such as PCs, servers and automotive. It provides high current up to 24A with fast transient response and excellent ripple rejection performance. With its low output voltage range (1V - 2.975V) and high efficiency, it is suitable for applications where voltage droop is an issue, such as multi-rail systems.

TPS53679RSBR is reliable and easy to use, it is with OCP, OVP, UVLO, Thermal Warning/Shutdown, Margin, Line Transient and RemoteSense provide all protection necessary in power system designs. Its advanced adaptive margining monitor constantly observes the actual output voltage and is adjustable throughout the entire range. It features a synchronous buck controller that is capable of delivering up to 24A of continuous current over its 1V to 2.975V output voltage range.

TPS53679RSBR offers great flexibility for design, with its wide range of switching frequency (100KHz - 1MHz) and high resolution step size (25mV). These key features make the device suitable for a variety of applications with both low noise and fast transient response requirements.

TPS53679RSBR Working Principle

TPS53679RSBR is a high-performance synchronous step-down DC/DC converter. Its main components include a high-performance buck controller, two low on-resistance FETs and its associated drivers, and the PWM comparator. Its main job is to convert a higher input voltage to a lower output voltage while regulating the output voltage with a minimum voltage drop.

The controller monitors the output voltage to ensure stable voltage delivery while maintaining maximum efficiency. This is done by monitoring the input and output voltages, current, temperature and other parameters and by analyzing the information to optimize the output voltage. Meanwhile, TPS53679RSBR utilizes a voltage-mode control design which ensures good line and load regulations, minimized ripple and fast transient response. In addition, the device does not require external components for voltage feedback, allowing for a simpler and low cost design.

The controller also provides overvoltage protection (OVP) and overcurrent protection (OCP). OVP is important for limiting the output voltage, preventing it from going above the specified level and damaging the system. OCP prevents the device from drawing too much current from the input, making sure it does not draw more current than it can handle.

The device utilizes FETs for power conversion. These power transistors have low on-resistance which can minimize the voltage drop during current delivery. The FETs are driven by the two integrated drivers which provide fast and accurate power delivery. In addition, the device features a PWM comparator which is used to detect the output voltage and provides an adjustable duty cycle over its full voltage range.

Finally, the device also features a remote sensing mechanism which is used to compensate the voltage drop over the power wire. This allows the actual output voltage to be well regulated and not influenced by the resistance of the power wires.

Conclusion

In conclusion, TPS53679RSBR is a special purpose voltage regulator developed by Texas Instruments for use in system on chip (SoC)/digital signal processor (DSP), PC/server and automotive power applications. It provides clean, efficient and reliable power delivery with high current up to 24A, fast transient response and excellent ripple rejection performance. With its advanced adaptive margining monitor, adjustable frequency and high resolution step size, it provides great flexibility for design, as well as protection against overload and overvoltage. All these features make it an ideal choice for a variety of applications.

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