LP2989ILD-3.3/NOPB

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Overview: The LP2989ILD-3.3/NOPB is a voltage regulator from Texas Instruments, part of their Power-Management-IC (PMIC) - Voltage Regulators - Linear family. The LP2989ILD-3.3/NOPB is specifically designed for powering microcontrollers, FPGAs and other integrated circuits.

Application Field: The LP2989ILD-3.3/NOPB provides a regulated output voltage of 3.3V with a voltage accuracy of ±2%. The LP2989 has an integrated one-time programmable (OTP) memory that could be used to store user settings such as the output voltage. It also features output voltage accuracy of ±1%, low drop out voltage, adjustable output voltage range, and a thermal shutdown circuit. This voltage regulator is most suitable for powering integrated circuits, microcontrollers, and FPGAs whose logic inputs need to be powered with precisely controlled voltage.

Working Principle: The LP2989ILD-3.3/NOPB works using the principle of linear regulation. A DC voltage source is provided with a precise reference voltage. The other input is then compared to this reference voltage. Any difference between these two input voltages is used to control the output voltage. Whenever this difference is greater, more current is passed through the output, producing a higher output voltage, and whenever it is smaller, less current is passed through the output, producing a lower output voltage. This is referred to as a linear regulator.

Key Features: The main features of the LP2989ILD-3.3/NOPB are as follows:

• Accurate output voltage: The LP2989ILD-3.3/NOPB provides an output voltage accuracy of ±2% and a static output error of ±1%.
• Low dropout voltage: The LP2989 has a dropout voltage of approximately 150mV, which ensures efficient operation at low input voltages.
• Adjustable output voltage: The LP2989ILD-3.3/NOPB allows the output voltage to be adjusted over a range of 2.7V to 3.6V.
• Thermal shutdown circuit: The LP2989ILD-3.3/NOPB features a thermal shutdown circuit that limits the maximum temperature at the device\'s output.
• Low quiescent current: The LP2989ILD-3.3/NOPB consumes extremely low quiescent current, reducing power consumption and extending battery life.

Conclusion: The LP2989ILD-3.3/NOPB is an ideal choice for powering microcontrollers, FPGAs, and other integrated circuits. Its unique features, such as its adjustable output voltage range and low quiescent current make it a reliable and efficient voltage regulator for any application. Its accuracy and thermal shutdown circuit ensure that it can effectively protect the powered devices from any sudden power surges.

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