TPS546C20ARVFR

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The TI TPS546C20A is an advanced, high performance synchronous step down DC-DC converter that is part of TI’s wide portfolio of voltage regulators. This regulator fits in the PMIC - Voltage Regulators - DC DC Switching Regulators category and is ideal for powering FPGAs and GPUs in high current, high efficiency buck converter applications such as adaptor systems, high density servers, and storage systems.

The TPS546C20A is designed to accept a current input range of 4.5-21V and supports a continuous output current of 60A at a typical efficiency of 94%. It features a variable output voltage range of 0.6V-5.5V, thus providing higher currents at lower output voltages. There are also two integrated Buck Controller output modes that can be used to adjust the output voltage as per requirement.

The TPS546C20A also has a number of technological benefits that make it a great fit for power applications. It supports a wide range of wide-range "spread spectrum" dissipation technique, which helps reduce EMI interferences and the possibility of hot spots. There is also an integrated Ultra-Low Gate Charge (ULGC) MOSFET that ensures very low switching losses, allowing for high efficiency converter design. Furthermore, its integrated high side CFET has improved start-up performance, higher efficiency and reduced current stress on output capacitors.

The TPS546C20A’s integrated phase-lock loop (PLL) allows the device to run at much higher frequency than other traditional buck converters, while still maintaining a high level of control. Its integrated current loop allows it to regulate the current across the top and bottom of the output with a single external resistor. This ensures that the system is highly efficient and robust in execution.

The TPS546C20A features a high-performance digital voltage positioner offering options to optimize versatility, keeping noise and EMI to a minimum and maintaining system stability. The digital voltage positioner is intended for applications requiring high efficiency, low EMI and/or ultra-low output voltage. It is also equipped with a comprehensive set of feedback compensation parameters, allowing for real-time optimised system performance.

The TPS546C20A also includes a smart adaptive gate driver technology, which allows it to achieve superior transient performance and a more efficient power delivery. The device also supports digital power management, allowing for real-time monitoring of input and output voltages and currents via a serial port interface. By using the serial port interface, customers can monitor current and voltage levels, enable/disable features, and program the device to optimize its performance.

The TPS546C20A is thus an ideal fit for a wide range of power applications. It is designed to have improved transient response, high efficiency, low EMI, low gate drive losses and supports optimal phase-shift operation and soft-start. This makes it perfect for powering FPGAs and GPUs in high current, high efficiency buck converter applications. Its adaptive gate driver technology also offers higher levels of performance, allowing for optimized system efficiency and a more reliable product.

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