BH25PB1WHFV-TR Integrated Circuits (ICs)

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BH25PB1WHFV-TR is a voltage regulator belonging to the PMIC (Power Management Integrated Circuit) family, with the category of Linear Voltage Regulators in particular. The regulator integrates a voltage reference, two error amplifiers, current limit and thermal protection circuits. The voltage reference in the regulator is trimmed at a nominal 3.30V with 8mV (typical) deviation.

The BH25PB1WHFV-TR regulator is designed primarily for use in consumer, laptop and server applications. It includes a maximum output current capability of 1.2A, providing a power dissipation of up to 10W. The regulator\'s specified maximum input voltage is 25V, which allows for a wide range of voltage sources for its operation.

The working principle of a BH25PB1WHFV-TR regulator is based on the concept of the voltage divider. The regulator takes input from an external source or from a voltage reference, and passes the voltage to two pins, the output and the feedback pin. A feedback pin varies the output voltage of the regulator, measured across the output pin, by a resistor connected between the feedback pin and ground. The output voltage is then determined by the impedance of the resistor between the feedback pin and ground.

The BH25PB1WHFV-TR voltage regulator features an externally adjustable voltage reference, enabling a wide range of output voltage regulation. Also, an internal error amplifier is included, which will compare the feedback pin voltage with the internal reference voltage. If the feedback pin voltage exceeds the reference voltage, error amplifier output will increase the output voltage, which will reset the feedback pin voltage. This maintains the output voltage at or near the required output voltage.

The BH25PB1WHFV-TR regulator also features current limit and thermal protection. The current limit circuit senses an overload on the output voltage and will automatically reduce it, preventing excessive current draw on the output and protecting the device against possible damage. The thermal protection circuit measures the device temperature, and will disable the regulator in the case of an excessive temperature rise.

In summary, the BH25PB1WHFV-TR regulator can be deployed in a wide range of applications thanks to its wide input voltage range and voltage reference. The integrated error amplifier, current limit, and thermal protection circuits provide reliable and efficient operation of the regulator in any medium or high-power applications.

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