TPS51200DRCRG4 Integrated Circuits (ICs)

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TPS51200DRCRG4 Application Field and Working Principle

The TPS51200DRCRG4 is a special purpose voltage regulator from Texas Instruments that allows system designers to create a high-performance power supply without having to spend a lot of time designing the circuit. This special purpose voltage regulator is designed for use in both desktop and server systems, and supports loads up to 25 A. It offers an adjustable output voltage range of 0.8 V to 20 V and 10 A switching current. It has been designed with the latest power management considerations in mind and is fully compliant with the PMBus (Power Management Bus) protocol. The TPS51200DRCRG4 is ideal for use in systems that require low noise, high current, and accurate output voltage.

Features

The TPS51200DRCRG4 supports a wide range of features that make it ideal for use in server and desktop systems. It can be used to regulate an adjustable output voltage of 0.8 V to 20 V, and it has a switching current of 10 A. The voltage accuracy is +/- 4%, with a maximum load of 25 A. Its standby current consumption is low, at 8 mA, and it has an excellent temperature coefficient. The voltage regulation is up to 300 kHz, and it supports both synchronous and nonsynchronous buck topologies as well as many soft-start functions.

The TPS51200DRCRG4 also includes a wide range of protection features. These include over-voltage protection, over-current protection, over-temperature protection, under-voltage protection, and the option of external NTC temperature sensing. It includes a dual-level fault status pin for interrogating the power supply for faults. It also has an input voltage range of 4.5 V to 18 V, which makes it suitable for use in a variety of power rail applications.

Applications

The TPS51200DRCRG4 is ideal for use in high-performance desktop and server systems, such as gaming systems, workstations, and high-end PCs. It can be used to provide power to CPU cores and memory modules, and it can be used to run graphics and disk subsystems. It can also be used to power a variety of other system components, including analog and digital circuits, industrial control systems, and embedded systems.

Working Principle

The TPS51200DRCRG4 works by first receiving input power from a power supply, and then regulating the output voltage as required. It uses an internal error amplifier to monitor the output voltage and provides a regulated voltage to the load. The voltage regulation is achieved by switching the output voltage of a voltage regulator, while an external resistor is used to set the output voltage. The switching frequency of the voltage regulator can be adjusted according to the load, and the current is regulated by the output voltage of the error amplifier.

The TPS51200DRCRG4 also allows for soft-start and burst mode operation. In soft-start mode, the voltage regulator reduces the switching frequency when the output voltage is first applied and then gradually increases the frequency. This allows the system to start at low currents, reducing current and power consumption. The burst mode operation allows the voltage regulator to quickly switch the output voltage as demand varies, allowing for increased efficiency and power savings.

Conclusion

The TPS51200DRCRG4 special purpose voltage regulator from Texas Instruments is an ideal solution for systems that require a high-performance power supply. Its adjustable output voltage range of 0.8 V to 20 V, switching current of 10 A, and excellent temperature coefficient make it suitable for use in desktop and server systems. It also offers a range of protection features and a dual-level fault status pin. Its adjustable switching frequency, low standby current consumption, and input voltage range of 4.5 V to 18 V make it an excellent choice for system designers.

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