LP3990TLX-2.5/NOPB

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LP3990TLX-2.5/NOPB is a linear voltage regulator with a wide range of applications. It is a low-noise, low-dropout, low-power-consumption regulator specifically designed for the low-power system. The low-dropout regulator is small in size and has an excellent power supply rejection ratio (PSRR), making it an ideal choice for portable applications. The device can be used to adjust the voltage for the same output power at different voltages, or for voltage regulation or voltage booster in systems.

The LP3990TLX-2.5/NOPB is designed to provide a constant output voltage with a wide input voltage range. The operating temperature range is -40 to 125 °C and the output voltage range is 0.8 to 6 V. It has an output current of up to 2.5 A and a dropout voltage of 200 mV at 1 A output current. The device also has a low quiescent current of 14 mA and a very low duty cycle for powering low-power applications. It also offers a low noise figure of 38 uVrms and excellent PSRR of 73 dB.

The device consists of a voltage reference, an error amplifier, a P-channel MOSFET, and a feedback resistors. The voltage reference is a band gap that generates a reference voltage. When the load current changes, the output voltage also changes. The error amplifier is used to compare the reference voltage and feedback voltage so that it can make adjustments to keep the output voltage at the setpoint. The output transistor is a P-channel MOSFET that is used to control the current through the load. The feedback resistor is used to select the desired output voltage.

The main advantage of the LP3990TLX-2.5/NOPB is its low-noise, low-power-consumption and high PSRR, making it an ideal choice for various low-power systems such as battery-powered appliances, MP3 players, and portable gaming systems. It is also ideal for applications that require reliable voltage regulation at extended temperatures and an adjustable output voltage. The device has a wide input voltage range and is designed for low voltage applications without sacrificing efficiency or dynamic performance. It is also easy to use with its drop-in solution and requires no external components for operation.

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