LM3753SQX/NOPB

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The LM3753SQX/NOPB voltage regulators are a type of DC DC switching controller that are designed for supplying power in up to 3A load applications. This power supply device is a multi-topology synchronous buck-boost controller that can accept input from 2.5V up to 6V, and deliver output from any voltage levels within the range of 2.5V to 6V. It offers an adjustable switching frequency, adjustable peak current limit with hiccup detection, cycle-by-cycle current-limit protection, over-voltage and over-temperature protection with thermal shutdown, and under-voltage lockout with hysteresis. The LM3753SQX/NOPB also features two logic-level enable pins, as well as an on-board MOSFET gate driver.

The application fields of the LM3753SQX/NOPB voltage regulator includes power-consuming embedded systems, such as smartphones, tablets, gaming platforms, computers, and laptops. It can also be used in any device that requires accurate hardware power management and efficient power delivery to extend battery life. This voltage regulator is designed for automatic voltage regulation and power management for various systems, such as power-over-Ethernet (POE), energy harvesting, and communication interface systems.

The working principle of the LM3753SQX/NOPB voltage regulator involves voltage feedback, current-limit protection, over-voltage protection, over-temperature protection, and under-voltage lockout with hysteresis. Voltage feedback is used to regulate the output voltage, while the current-limit protection guards against over-currents that can damage the system or the circuit. The over-voltage protection prevents the output voltage from exceeding its rated voltage, while the over-temperature protection ensures that the system does not overheat. Finally, the under-voltage lockout with hysteresis prevents the system from entering a low load or no-load condition.

The LM3753SQX/NOPB voltage regulator is equipped with two logic-level enable pins that are used for different functions. The first enables pin is used for setting the duty cycle and the output voltage, while the second enables pin is used for setting the input voltage. With these two enable pins, the user can easily adjust the duty cycle and the output voltage to the required levels. Furthermore, the regulator also features an on-board MOSFET gate driver, which provides precise gate driving signals to the load, thus reducing switching losses and improving overall efficiency.

In conclusion, the LM3753SQX/NOPB voltage regulators are a type of DC DC switching regulator that are specifically designed for providing power in up to 3A load applications. It features voltage feedback, current-limit protection, over-voltage protection, over-temperature protection, and under-voltage lockout with hysteresis. Additionally, this voltage regulator also has two logic-level enable pins and an on-board MOSFET gate driver, which makes it ideal for a variety of applications.

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