LM3402MRX/NOPB

The LM3402MRX/NOPB is a high-performance, step-down (buck) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage with high efficiency, making it suitable for a variety of applications, including portable devices, battery-powered systems, and other power-sensitive applications.

Key Features:

1. Input Voltage Range: The LM3402MRX/NOPB can accept a wide input voltage range, typically from 4.5V to 60V, allowing it to be used in various power supply scenarios.

2. Output Voltage: The device is capable of delivering adjustable output voltages, which can be set using external resistors. This flexibility makes it suitable for different applications requiring specific voltage levels.

3. High Efficiency: The regulator is designed to achieve high efficiency, often exceeding 90%, which helps in reducing heat generation and prolonging battery life in portable applications.

4. Switching Frequency: The LM3402 operates at a fixed switching frequency, typically around 100 kHz, which helps in minimizing the size of external components such as inductors and capacitors.

5. Current Capability: It can provide a maximum output current of up to 2A, making it suitable for powering a range of devices.

6. Thermal Protection: The device includes thermal shutdown features to protect against overheating, ensuring reliable operation under varying load conditions.

7. Package Type: The LM3402MRX/NOPB is available in a compact 8-pin MSOP (Micro Small Outline Package), which is ideal for space-constrained applications.

8. Integrated Features: The regulator includes built-in features such as soft-start, which helps to limit inrush current during startup, and a power-good output that indicates the status of the output voltage.

9. Applications: Common applications for the LM3402MRX/NOPB include automotive power supplies, industrial equipment, and consumer electronics, where efficient power management is critical.

Electrical Characteristics:

• Quiescent Current: The device has a low quiescent current, which is beneficial for battery-operated devices as it helps to extend battery life.
• Load Regulation: The LM3402 provides excellent load regulation, ensuring that the output voltage remains stable even with varying load conditions.

Conclusion:

The LM3402MRX/NOPB from Texas Instruments is a versatile and efficient buck regulator that meets the demands of modern electronic applications. Its combination of high efficiency, adjustable output voltage, and robust protection features make it an excellent choice for designers looking to implement reliable power management solutions in their products.