TPS40056PWPRG4

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Texas Instruments’ TPS40056PWPRG4 is a high-performance, high-efficiency buck controller with synchronous rectification, embedded compensation, and various analog and digital features to support extreme adaptive voltage scaling and optimization. It has been designed to meet stringent power requirements for mid- and high-end servers, workstations, and graphic cards.

Offering up to 94% efficiency and output power as high as 200W, the TPS40056PWPRG4 is ideal for high-current and multi-phase applications in space-constrained, power-efficient designs. In addition, the device integrates fine-buck current sensing, providing a fast response to dynamic currents on the output rail. Thanks to its superior transient and dynamic load response, the TPS40056PWPRG4 is capable of meeting a wide range of stringent power requirements, including those required by some of the most advanced core architectures.

The buck controller features an adjustable 1.2V to 5.0V voltage range, coupled with a comprehensive set of protections, including over-temperature, over-current, over-voltage, and under-voltage protection. To facilitate efficient thermal management, the device includes a temperature-sense amplifier that adjusts the switching frequency based on the junction temperature. Combined with its advanced adaptive voltage scaling and optimized dynamic transient response, this allows for continuous power optimization under varying maximum switching frequency limits.

The TPS40056PWPRG4 DC-DC switching controller works by first converting the input voltage of the DC power supply into a constant frequency, pulse-width modulation (PWM) output. This output is then sent to the synchronous rectifier, which turns it into a DC voltage output at the desired level. In addition, the controller also allows for intelligent dynamic control of the output current, resulting in increased efficiency and improved load response.

Using a flexible architecture, the TPS40056PWPRG4 can be used in a variety of applications. It is suitable for use in synchronous buck converters, point-of-load converter systems, DC-DC voltage regulators, and small- to mid-power white goods, computing, and gaming power supplies. Additionally, the TPS40056PWPRG4 supports up to 12V input, ensures reliable operation at up to 100% duty cycle, and can be easily configured for either buck or buck-boost operation.

Overall, the TPS40056PWPRG4 is a versatile, high-efficiency buck controller that offers robust protection and tuning capabilities. With its ability to continuously adjust to varying loads, its wide input voltage range, and its ability to provide reliable power to mid- and high-end systems, the TPS40056PWPRG4 is the ideal choice for a range of applications in the power management field.

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