FAN1950D25X

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The FAN950D25X is a linear regulator, which is part of the power management integrated circuit (PMIC) voltage regulators range. Linear regulators are a classic way of providing an output voltage from a power supply or input voltage, by adjusting the current drawn from it. This makes them suitable for a range of applications, ranging from providing a constant voltage for powering sensitive devices to delivering an adjustable output voltage for powering a wide range of digital logic.

The FAN950D25X is designed to deliver protection from overcurrent, short circuit, reverse current, thermal protection and overvoltage conditions. On top of this, the device also makes use of a high output current limit of 8A and a low output voltage limit of 18V. These features make this linear regulator well-suited to a wide variety of industrial, embedded, and automotive applications.

The FAN950D25X is a 3-terminal device that operates on a positive, unregulated supply voltage, VIN and outputs a regulated supply voltage, VOUT. When the device is connected in the circuit, two resistors (R1 and R2) are used to set the output voltage level. The output voltage is inversely proportional to the values of the resistors and regulated by an internal error amplifier.

First, the current sense resistor R1 is used to sense the output current and signal the error amplifier. The error amplifier then compares the output voltage to a reference voltage and adjusts the output current accordingly. This loop will continue until the output voltage reaches the desired value. But because of the feedback loop, the voltage remains stable and is isolated from the input voltage fluctuations.

The output voltage of the FAN950D25X also has an integrated soft-start feature. When this feature is activated, the output voltage will ramp up to the desired level at a predetermined rate, allowing it to be more gentle on circuits and components when powering up to the normal voltage. This feature helps prevent the output voltage from overshooting the target and ensures reliable, consistent performance.

The FAN950D25X offers a maximum output current of 8A, which makes it well-suited for powering a wide range of industrial, automotive and embedded applications. It also offers accurate output voltage of up to 18V, making it ideal for applications such as automotive electronic control, industrial motor drive and power supplies.

In addition to its great electrical characteristics, the FAN950D25X also offers both a thermal protection and overvoltage protection. The thermal protection feature helps keep the device safe from excessive temperatures. The overvoltage protection keeps the device and its load safe, even during conditions of overvoltage.

Overall, the FAN950D25X linear regulator is a great choice for a wide range of applications. Its features, including overcurrent, short-circuit, reverse current, thermal protection, and overvoltage protection, make this a reliable and efficient power management solution.

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