LM2587T-5.0

The LM2587T-5.0 is a high-performance voltage regulator manufactured by Texas Instruments. It is part of the LM2587 series, which is designed for step-down (buck) voltage regulation applications. This specific model provides a fixed output voltage of 5.0 volts, making it suitable for powering various electronic devices and circuits that require a stable 5V supply.

Key Features:

1. Output Voltage: The LM2587T-5.0 delivers a fixed output voltage of 5.0V, which is ideal for powering microcontrollers, sensors, and other digital devices.

2. Input Voltage Range: The device can accept a wide input voltage range, typically from 7V to 40V, allowing it to be used in various applications where the input voltage may vary.

3. Output Current: The LM2587T-5.0 can provide a maximum output current of up to 3A, making it suitable for applications that require moderate power levels.

4. Efficiency: The regulator is designed for high efficiency, often exceeding 85%, which helps in reducing heat generation and improving overall system reliability.

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

6. Thermal Protection: The LM2587T-5.0 includes built-in thermal shutdown features to protect the device from overheating, ensuring safe operation under various load conditions.

7. Package Type: The regulator is available in a TO-220 package, which provides good thermal performance and ease of mounting on PCBs.

8. Applications: Common applications for the LM2587T-5.0 include power supplies for telecommunications equipment, industrial automation systems, and consumer electronics.

Pin Configuration:

The LM2587T-5.0 typically features a standard pin configuration that includes:

• Input Pin (Vin): The pin where the input voltage is applied.
• Ground Pin (GND): The common ground connection for the circuit.
• Output Pin (Vout): The pin that provides the regulated output voltage.
• Feedback Pin (FB): Used for voltage feedback to maintain regulation.
• Switch Pin (SW): The pin connected to the inductor in the buck converter configuration.

Performance Characteristics:

• Load Regulation: The LM2587T-5.0 exhibits excellent load regulation, ensuring that the output voltage remains stable even with varying load conditions.
• Line Regulation: It also provides good line regulation, maintaining output voltage stability despite changes in input voltage.

Conclusion:

The LM2587T-5.0 from Texas Instruments is a robust and efficient voltage regulator that is well-suited for a variety of applications requiring a reliable 5V output. Its combination of high efficiency, thermal protection, and versatility makes it a popular choice among engineers and designers in the electronics industry.