LP2951-33QDRGRQ1

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The LP2951-33QDRGRQ1 is a robust, high-performance three-terminal voltage regulator IC from the Linear PMIC family. With its built-in high-current drive capabilities and ultra-low noise design, this voltage regulator IC is an ideal solution for applications that need to ensure a reliable supply of stable voltage with low noise and short circuit protection.

LP2951-33QDRGRQ1 Application Field

The primary application field of the LP2951-33QDRGRQ1 is DC power regulation. This voltage regulator can be applied in a variety of digital and analog circuits to regulate the input voltage, such as processor cores, digital signal processors, embedded systems, motor drives, voltage sensing, and static and RISC processors. It also has the necessary features to support high-efficiency, high-shift, high-current and high-power applications.

The LP2951-33QDRGRQ1 is also a great choice for applications that need multiple voltage output from a single regulator. It can provide up to 3A of output current and has the capability to support different output voltage ranges, making it an ideal choice for multiple application areas.

LP2951-33QDRGRQ1 Working Principle

At the heart of the LP2951-33QDRGRQ1 is a voltage-controlled current source, which is regulated by a voltage divider ratio connected at the POWER pin of the device. The current source is regulated by the output voltage of the device, which is controlled by an internal reference voltage in the range of 0.8V to 2.5V. This reference voltage is applied to the reference terminal of the device. The output voltage of the device is then determined by the equation VOUT = VREF x (R1/R2).

The LP2951-33QDRGRQ1 also features a built-in sense loop, which is capable of providing feedback to the device to ensure a constant output voltage. This feature ensures that the output voltage of the device does not deviate from the set reference voltage by more than 20%.

The LP2951-33QDRGRQ1 also features built-in protection against over-voltage and overload conditions. If the voltage at the VIN terminal is more than double the reference voltage, the device will go into a shutdown mode. It also features a thermal limitation circuit, which will prevent the device from overheating. This circuit senses the temperature of the device and reduces the output current if the temperature in the device falls below the set limit.

Conclusion

The LP2951-33QDRGRQ1 is an efficient and robust three-terminal voltage regulator IC from the Linear PMIC family. It is ideal for applications that need to ensure a reliable supply of stable voltage with low noise and short circuit protection. The device is also capable of providing up to 3A of output current and features a built-in sense loop and protection against over-voltage and overload conditions.

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