LM2587T-ADJ/NOPB

The LM2587T-ADJ/NOPB is a versatile and efficient step-down (buck) voltage regulator manufactured by Texas Instruments. This device is designed to provide a stable output voltage from a higher input voltage, making it suitable for a variety of applications, including power management in portable devices, battery-powered systems, and other electronic circuits requiring efficient voltage regulation.

Key Features:

1. Adjustable Output Voltage: The LM2587T-ADJ/NOPB allows for an adjustable output voltage, which can be set using external resistors. This flexibility makes it suitable for applications requiring specific voltage levels.

2. High Efficiency: The device boasts high efficiency, often exceeding 85%, which helps in reducing heat generation and prolonging battery life in portable applications.

3. Wide Input Voltage Range: It can operate with a wide input voltage range, typically from 4.5V to 40V, making it compatible with various power sources.

4. Output Current Capability: The LM2587T-ADJ/NOPB can deliver up to 3A of output current, making it suitable for powering a range of devices, from microcontrollers to larger loads.

5. Built-in Protection Features: The regulator includes several protection features such as thermal shutdown, current limiting, and under-voltage lockout, ensuring reliable operation and safeguarding against potential damage.

6. Switching Frequency: The device operates at a fixed switching frequency, which helps in minimizing the size of external components like inductors and capacitors.

7. Package Type: The LM2587T-ADJ/NOPB is available in a TO-220 package, which provides good thermal performance and ease of mounting in various applications.

8. Application Versatility: It is suitable for a wide range of applications, including but not limited to:

   • Power supplies for microcontrollers and DSPs
   • Battery chargers
   • Automotive power management
   • Industrial equipment

Electrical Characteristics:

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: Adjustable from 1.23V to 37V
• Maximum Output Current: 3A
• Switching Frequency: Typically around 100 kHz
• Efficiency: Up to 90% under optimal conditions

Typical Applications:

• Consumer electronics
• Telecommunications equipment
• Automotive electronics
• Industrial automation systems

Conclusion:

The LM2587T-ADJ/NOPB from Texas Instruments is a robust and efficient solution for applications requiring adjustable step-down voltage regulation. Its combination of high efficiency, wide input range, and built-in protection features makes it a popular choice among engineers and designers looking to implement reliable power management solutions in their electronic designs.