LMR62421XSDE/NOPB

The LMR62421XSDE/NOPB is a high-performance, low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage with low noise and high efficiency, making it suitable for a variety of applications, including portable devices, RF applications, and other battery-powered systems.

Key Features:

1. Output Voltage: The LMR62421 can deliver a fixed output voltage of 2.1V, which is ideal for powering low-voltage digital circuits and components.

2. Input Voltage Range: It operates over a wide input voltage range, typically from 2.5V to 5.5V, allowing it to be used in various power supply configurations.

3. Low Dropout Voltage: The device features a low dropout voltage, typically around 200mV at full load, which enables it to maintain regulation even when the input voltage is close to the output voltage.

4. High Output Current: The LMR62421 can provide up to 1A of output current, making it suitable for applications that require significant power.

5. Low Quiescent Current: It has a low quiescent current, which is beneficial for battery-operated devices, as it helps to extend battery life.

6. Power Supply Rejection Ratio (PSRR): The regulator exhibits a high PSRR, which minimizes the impact of input voltage fluctuations on the output voltage, ensuring a clean and stable power supply.

7. Thermal Protection: The device includes thermal shutdown protection, which prevents damage due to overheating by shutting down the regulator if the junction temperature exceeds a certain threshold.

8. Package Type: The LMR62421XSDE/NOPB is available in a compact, surface-mount package (SOT-23), which is suitable for space-constrained applications.

9. Applications: Common applications include powering microcontrollers, sensors, and other low-voltage digital circuits, as well as in RF and wireless communication devices.

Electrical Characteristics:

• Output Voltage Tolerance: The output voltage is typically accurate within ±2%.
• Temperature Range: The device operates over a specified temperature range, typically from -40°C to +125°C, making it suitable for industrial and automotive applications.

Conclusion:

The LMR62421XSDE/NOPB from Texas Instruments is a versatile and efficient LDO voltage regulator that provides reliable performance in a compact package. Its combination of low dropout voltage, high output current capability, and low quiescent current makes it an excellent choice for a wide range of electronic applications, particularly in battery-powered and portable devices.