TPS54424RNVR

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TPS54424RNVR is designed for high-performance, zoned power supply applications. It is a family of DC/DC synchronous buck switching regulators for advanced graphics power converters. It integrates high-side and low-side FET drivers, allowing a programmable frequency up to 1MHz with fewer external components. Its most important feature is the capability of implementing up to four independently controlled phase outputs in one package.

This integrated device includes four channels of buck regulators, each capable of delivering up to 12A of continuous current with a 3.3V input voltage range. Its output voltage is adjustable between 0.6V to a maximum of 0.92V, enabling over-voltage protection, as well as current-limit protection and short circuit protection. The external compensation design allows for flexibility in optimizing the transient response to meet the customers system requirements and minimize output ripple.

The TPS54424RNVR can be used for many applications, including motherboards, graphics boards, and other high-power computing environments. The device can deliver power for FPGA chips, CPUs, GPUs, and other complicated and hard-to-drive loads. The high efficiency and lower operating temperature of the TPS54424RNVR make it ideal for applications that drive maximum power to a single or small number of computer processors with high levels of reliability.

The working principle of the TPS54424RNVR is based on the use of an oscillator to control the switching frequency of the power stages. At power-up, the converter senses the voltage on the input and output pins and processes it in order to adjust the switching frequency and target output voltage. The internal clock then works in conjunction with an external pulse-width modulation (PWM) signal from an MCU to generate the gate driver signals for the four output power stages.

For each output stage, the PWM signal is combined with an external clock signal to modulate the amount of power that is delivered to the output, ultimately controlling the output voltage level. The external compensation components, combined with the sense resistor, allow the system to adjust the output voltage in order to achieve the desired output ripple level. Regulated current flows through and out of the powerstage to the load via the output inductor.

In short, the TPS54424RNVR is an integrated, high-performance device that is capable of delivering up to 12A of continuous current, with a wide range of input and output voltage options. Its various protection features make it suitable for a variety of demanding applications. With its many features, this device is ideal for providing power in high-end applications where reliability, efficiency, and accuracy are paramount.

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