TPS54353PWPRG4

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The TPS54353PWPRG4 is a Single-Channel Synchronous Step-Down Converter with an integrated high-side and low-side Power MOSFET designed for battery-powered systems. This switching regulator finds its application in powering advanced components such as processor cores, memory, peripherals, wireless transmitters, and other core circuit functions which require a very low output voltage. It also finds reasonable use in industrial and automotive applications as it has improved efficiency, thermal performance, and minimized space.

TPS54353PWPRG4 has the ability to quickly switch and help regulate the system voltages to maintain the processor and other components within the precision current level they require while maintaining an optimum performance and efficiency. Generally, the device’s features include an adjustable output voltage that is adjustable between 0.7V to 5.5V, a spread spectrum clock with up to 2MHz switching frequency, a enable pins that shuts off the output, a high-side current sense pin for monitoring and controlling the output voltage ripple, and a linear regulator output. The device also incorporates an over-voltage protection for the output and the output voltage can be monitored via the power good pin.

The working principle of this voltage regulator is based on the on-time control. It works by controlling the time that the switch is turned on to regulate the output voltage. The on-time is dependent on the input voltage and the output voltage, while the switch is turned off when the output voltage reaches the desired value. An internal logic keeps monitoring the output voltage and ensures that the output voltage is lower than the threshold set. In case of any overshoot or undershoot in output voltage, the internal logic takes an appropriate action and brings the output back in the desired range. This voltage is kept within the required range by calibrating the on-time, which is due to the oscillator.

Moreover, the TPS54353PWPRG4 also provides a very low minutes current leakage during the OFF periods. This means that the device can be put in a low power sleep mode without consuming a large amount of current. This greatly improves the efficiency of the Switch regulator and allows it to be suitable for applications such as powering processor cores and memory systems. The TPS54353PWPRG4’s wide input voltage range also makes it suitable for industrial and automotive applications.

Overall, the TPS54353PWPRG4 DC-DC Switching Regulator is an ideal device to improve the efficiency and performance of battery-powered systems. Its on-time control and wide input voltage range makes it suitable for industrial and automotive applications as well as for embedded systems requiring low output voltage.

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