LM2587T-12

The LM2587T-12 is a high-performance voltage regulator manufactured by Texas Instruments, designed for applications requiring a stable output voltage with high efficiency. This component is part of the LM2587 series, which is known for its versatility in power management solutions.

Key Features:

1. Output Voltage: The LM2587T-12 specifically provides a fixed output voltage of 12V, making it suitable for powering various electronic devices and circuits that require a stable 12V supply.

2. Input Voltage Range: It operates over a wide input voltage range, typically from 4.5V to 40V, allowing it to be used in a variety of applications, including automotive, industrial, and consumer electronics.

3. Output Current: The regulator can deliver up to 3A of output current, which is sufficient for many mid-range power applications.

4. Efficiency: The LM2587T-12 is designed for high efficiency, often exceeding 85% under typical load conditions. This efficiency helps to minimize heat generation, reducing the need for extensive thermal management.

5. Switching Frequency: The device operates at a fixed switching frequency of 150 kHz, which helps in reducing the size of external components such as inductors and capacitors.

6. Thermal Protection: It includes built-in thermal shutdown and current limiting features, providing protection against overheating and overcurrent conditions, which enhances the reliability of the device in various operating environments.

7. Package Type: The LM2587T-12 is typically available in a TO-220 or a surface-mount package, making it easy to integrate into different circuit designs.

8. Applications: This voltage regulator is ideal for applications such as power supplies for microcontrollers, battery chargers, and other devices that require a reliable 12V output. It is also suitable for use in automotive applications, where voltage fluctuations can occur.

Pin Configuration:

The LM2587T-12 typically features a standard pin configuration that includes:

• Input Pin (Vin): Where the input voltage is applied.
• Output Pin (Vout): The regulated output voltage is available here.
• Ground Pin (GND): Common ground connection for the circuit.
• Feedback Pin (FB): Used for voltage feedback to maintain regulation.
• Switch Pin (SW): Connects to the inductor in the switching circuit.

Conclusion:

The LM2587T-12 from Texas Instruments is a robust and efficient voltage regulator that provides a reliable 12V output for a variety of applications. Its combination of high efficiency, wide input voltage range, and built-in protection features makes it a popular choice among engineers and designers looking for a dependable power management solution.