TPS54973PWP

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TPS54973PWP is a integrated PMIC voltage regulator belonging to DC-DC switching regulator, which is developed by Texas Instruments and incorporated into their Simple Switcher family. It is able to regulate and provide stable output power for most DC-DC switching applications, with a specific power module that is suitable for use in space-constrained applications such as automotive, industrial, communications, and consumer electronic products.

Because of its high functional integration and wide input voltage range, TPS54973PWP voltage regulator is currently widely used in automotive, industrial, communication, consumer electronics products and other field applications

When it comes to the working principle, the TPS54973PWP voltage regulator includes two stages. The first stage is pulse modulation, which converts DC input into a pulse width modulated signal. This stage is followed by high frequency power conversion, in which high frequency square wave is converted into a stable and regulated output voltage.

The first stage of TPS54973PWP voltage regulator works on the principle of pulse width modulation. It takes the input voltage and converts it into a pulse, the duty cycle of the pulse is proportional to the input voltage. The pulse width is then divided into two parts, high and low, and the ratio of these two parts is determined by the input voltage and the reference voltage, which is set by an internal or external oscillator.

The second stage is power conversion. The pulse width modulated signal is fed into the switching converter, and the output voltage is regulated by controlling the pulse width of the signal. The output of the power conversion is then further regulated by an error amplifier, ensuring the accuracy of the output voltage.

The TPS54973PWP voltage regulator has high power efficiency, low noise and a wide input voltage range. It is suitable for applications with space-constrained designs, such as automotive, industrial, communication, consumer electronics products and other field. It is also an excellent solution for high performance, low power and low noise systems.

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