LDL112PV33R

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Linear voltage voltage regulators are widely used in applications that require stabilized DC, low-noise power supplies. The LDL112PV33R is a three-terminal, low dropout linear voltage regulator that provides accurate output voltage up to 20V with a low quiescent current of 800 μA. It features an active current limit in addition to thermal shutdown protection. The potential applications of the LDL112PV33R include audio amplifiers, digital electronics, microprocessors, and automotive electronics.

The LDL112PV33R uses a simple linear regulator principle using a combination of a voltage reference and current source to provide a regulated output voltage. A current source is connected to a voltage reference at its inverting input, and the non-inverting input of the voltage reference is connected to the output voltage. The voltage reference output is then fed back into the current source, allowing it to adjust the current through the series pass device to maintain the desired output voltage. This circuit is referred to as a “constant-current source”, and is responsible for the bulk of the regulation.

The advantage of this approach is that the output voltage can be adjusted to any desired level with a single resistor, allowing a very wide range of application scenarios. For example, if the rail voltage is 5V, then the output voltage can be adjusted to 2.5V with a single resistor. This feature allows for the design of power supplies with improved accuracy, robustness, and efficiency.

The LDL112PV33R also has a wide input voltage range from 2.7V to 20V, which allows it to be used in many applications. Furthermore, the device has an adjustable output voltage range of 0.9V to 20V. Its 0.8V dropout voltage ensures that the output voltage is always stable even when the input voltage is close to the output voltage. These features make it ideal for use in applications that require high accuracy and low quiescent current.

The LDL112PV33R provides excellent protection features, including thermal shutdown, current limit, and reverse-voltage protection. It also has an adjustable output current limit that can be used to protect the device against overcurrent or fault conditions. The device also has an internal compensation network which allows for improved transient response and output stability. It also has an adjustable overvoltage protection that can be used to limit the output voltage in case of overvoltage conditions.

The LDL112PV33R is a versatile three-terminal linear regulator that provides excellent performance, protection features, and wide input and output voltage range in various applications. It is particularly well-suited for applications that require high accuracy and low quiescent current. The active current limit and thermal protection ensures the device\'s safety against overcurrent, overvoltage, and thermal overload conditions, making it an ideal choice for a variety of applications.

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