Texas Instruments

LM2594N-12

LM2594N-12 Description

The LM2594N-12 is a fixed-output voltage regulator belonging to the SIMPLE SWITCHER® series, manufactured by Texas Instruments. This DC switching voltage regulator is designed to provide a stable 12V output with a maximum output current of 500mA. It operates within an input voltage range of 4.5V to 40V, making it suitable for a variety of applications where a wide input voltage range is necessary. The regulator features a switching frequency of 150kHz, which helps in achieving high efficiency and compact design.

The LM2594N-12 is housed in a through-hole package, specifically an 8DIP tube, which ensures robust mechanical stability and ease of integration into various electronic systems. It employs a buck topology, which is known for its high efficiency and ability to step down voltage levels effectively. The regulator does not feature synchronous rectification, which simplifies the design but may slightly impact efficiency at very high load currents.

LM2594N-12 Features

• Fixed Output Voltage: The LM2594N-12 provides a stable 12V output, ensuring consistent power supply to connected devices.
• Wide Input Voltage Range: With an input voltage range of 4.5V to 40V, this regulator can handle a variety of input sources, making it versatile for different applications.
• High Efficiency: The buck topology and 150kHz switching frequency contribute to high efficiency, minimizing power loss and heat generation.
• Through-Hole Mounting: The through-hole package type ensures mechanical stability and ease of integration into PCB designs.
• Single Output Configuration: The regulator is designed for a single output, simplifying the power supply design for applications requiring a single regulated voltage.
• Obsolete Status: While the LM2594N-12 is marked as obsolete, it remains a reliable choice for existing designs and applications where its specific attributes are required.
• Compliance: The regulator is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.

LM2594N-12 Applications

The LM2594N-12 is ideal for applications requiring a stable 12V power supply with moderate current requirements. Its wide input voltage range and fixed output make it suitable for:

• Industrial Control Systems: Providing stable power to sensors, actuators, and control modules.
• Telecommunications Equipment: Supplying power to low-power communication devices and peripherals.
• Consumer Electronics: Used in devices such as set-top boxes, routers, and other low-power consumer electronics.
• Automotive Electronics: Suitable for powering electronic control units (ECUs) and other automotive subsystems.

Conclusion of LM2594N-12

The LM2594N-12 is a robust and reliable DC switching voltage regulator from Texas Instruments, offering a stable 12V output with a wide input voltage range. Its high efficiency and compact design make it an excellent choice for applications requiring a stable power supply. Despite its obsolete status, the LM2594N-12 remains a viable option for existing designs and applications where its specific attributes are essential. Its compliance with international regulations and ease of integration further enhance its appeal in the electronics industry.