Texas Instruments

LM2587S-12  

DC Switching Voltage Regulators

LM2587S-12 Description

The LM2587S-12 is a fixed-output voltage regulator from Texas Instruments, designed to deliver a stable 12V output at a maximum current of 5A. This device is part of the SIMPLE SWITCHER® series, known for its ease of use and high performance. The LM2587S-12 operates within a wide input voltage range of 4V to 40V, making it suitable for a variety of power supply applications. It features a switching frequency of 100kHz, which allows for efficient power conversion and compact design. The regulator is housed in a surface-mount package, specifically a DDPAK, which is ideal for space-constrained applications. Despite its robust performance, the LM2587S-12 is marked as obsolete, indicating that it is no longer in production but may still be available through surplus channels.

LM2587S-12 Features

• Fixed Output Voltage: The LM2587S-12 provides a stable 12V output, ensuring consistent power delivery to connected devices.
• Wide Input Voltage Range: With an input voltage range of 4V to 40V, this regulator can accommodate a variety of power sources, enhancing its versatility.
• High Output Current: Capable of delivering up to 5A of output current, the LM2587S-12 is suitable for applications requiring significant power.
• 100kHz Switching Frequency: This frequency allows for efficient power conversion and enables the use of smaller inductors and capacitors in the design.
• Surface-Mount Package: The DDPAK package type facilitates easy integration into compact and high-density PCB designs.
• Positive Output Configuration: Ensures compatibility with standard power supply architectures.
• Multiple Topologies: Supports boost, flyback, and forward converter topologies, providing flexibility in circuit design.
• REACH Compliance: The LM2587S-12 is REACH unaffected, ensuring compliance with environmental regulations.
• Moisture Sensitivity Level: MSL 3 (168 Hours) indicates the device's resistance to moisture, enhancing its reliability in various environmental conditions.

LM2587S-12 Applications

The LM2587S-12 is ideal for a range of applications where a stable 12V output and high current capability are required. Its wide input voltage range and compact package make it particularly suitable for:

• Industrial Equipment: Powering motors, actuators, and other high-current devices in industrial settings.
• Telecommunications: Providing stable power to communication modules and networking equipment.
• Automotive Systems: Suitable for automotive electronics where a wide input voltage range is necessary to accommodate varying battery conditions.
• Consumer Electronics: Ideal for powering high-current components in devices such as gaming consoles, home theaters, and high-end audio equipment.
• Power Supply Units: Can be used in custom power supply designs for various electronic systems.

Conclusion of LM2587S-12

The LM2587S-12 from Texas Instruments is a robust and versatile fixed-output voltage regulator designed for high-current applications. Its wide input voltage range, high switching frequency, and compact surface-mount package make it an excellent choice for a variety of power supply needs. Although now obsolete, the LM2587S-12 remains a reliable option for engineers seeking a stable 12V output at up to 5A. Its compatibility with multiple topologies and compliance with environmental regulations further enhance its appeal. For applications requiring a reliable and efficient power solution, the LM2587S-12 is a standout choice in the realm of DC switching voltage regulators.

LM2587S-12 Documents

Download datasheets and manufacturer documentation for LM2587S-12

Datasheets :

LM2587