SPX3819S-L-1-8/TR

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Introduction:

The SPX3819S-L-1-8/TR is a low drop-out linear voltage regulator. The regulator is designed to provide excellent thermal performance and good noise immunity. The device has an output voltage range of 2.6V to 10V with an accuracy of ±2%. In addition, it has a low ground pin current, as little as 1.5mA, and a current limit up to 1.8A.

Application Field:

The SPX3819S-L-1-8/TR has a wide range of applications. It can be used as an analog power supply for various circuit boards. It can be used to power cell phones and other portable electronic devices, as well as for industrial control, automotive, and computers. The device can also be used for post regulation, power supply sequencing, or as a voltage supervisor. It is also ideal for power management in application areas that require low dropout and low ground pin current.

Working Principle:

The SPX3819S-L-1-8/TR is a linear voltage regulator that converts a higher input voltage to a lower output voltage. The voltage regulation is accomplished by means of a linear pass transistor connected between the input and output terminals. When the input voltage is higher than the output voltage, the transistor allows current to pass from the input to the output. This current is regulated by a reference voltage, which is set by a voltage divider resistors connected to the error amplifier input. The error amplifier then compares the reference voltage with the output voltage and adjusts the current through the pass transistor as needed.

The regulator also features a switching current limit circuit to limit the output current. This is useful for protecting the regulator from overloads. The regulator also incorporates thermal control that allows for the device to shut itself down if it gets too hot. This helps protect the regulator from permanent damage due to excessive temperature.

Conclusion:

The SPX3819S-L-1-8/TR is a low drop-out linear voltage regulator with a wide range of applications. It has an output voltage range of 2.6V to 10V with an accuracy of ±2%. In addition, it has a low ground pin current, as little as 1.5mA, and a current limit up to 1.8A. The device features linear pass transistor, a switching current limit circuit, and a thermal control, making it suitable for use in a variety of applications.

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