Texas Instruments

LM2937ESX-12  

Linear & Switching Voltage Regulators

LM2937ESX-12 Description

The LM2937ESX-12 is a fixed-output linear voltage regulator designed by Texas Instruments, offering a robust solution for applications requiring a stable 12V output at up to 500mA. This regulator is housed in a surface-mount DDPAK package, making it suitable for compact and high-density PCB designs. Despite being marked as obsolete, the LM2937ESX-12 remains a reliable choice for engineers seeking a proven linear regulator with a maximum input voltage of 26V and a dropout voltage of only 1V at full load.

LM2937ESX-12 Features

• Fixed Output Voltage: The LM2937ESX-12 provides a stable 12V output, ensuring consistent power delivery to connected devices.
• High Input Voltage Range: With a maximum input voltage of 26V, this regulator can handle a wide range of input conditions, making it versatile for various power supply scenarios.
• Low Dropout Voltage: At 1V dropout at 500mA, the LM2937ESX-12 is efficient even at high load currents, minimizing power loss and heat generation.
• Low Quiescent Current: A quiescent current of only 10mA ensures minimal power consumption during idle states, enhancing overall system efficiency.
• Surface Mount Packaging: The DDPAK package is ideal for surface-mount technology (SMT), facilitating automated assembly processes and compact PCB layouts.
• Moisture Sensitivity Level 3: Certified for 168 hours, this regulator is suitable for environments with moderate humidity, ensuring reliable performance in diverse conditions.
• REACH Compliance: The LM2937ESX-12 is REACH unaffected, ensuring compliance with stringent environmental regulations and material restrictions.

LM2937ESX-12 Applications

The LM2937ESX-12 is well-suited for a variety of applications where a reliable 12V power supply is required. Its high input voltage range and low dropout voltage make it ideal for:

• Industrial Control Systems: Providing stable power to sensors, actuators, and control modules.
• Telecommunications: Supplying power to low-power communication devices and peripherals.
• Consumer Electronics: Ideal for powering auxiliary systems in devices such as printers, scanners, and set-top boxes.
• Automotive Electronics: Suitable for applications requiring a stable 12V supply, such as infotainment systems and electronic control units.

Conclusion of LM2937ESX-12

The LM2937ESX-12, despite its obsolete status, remains a reliable and efficient linear voltage regulator. Its fixed 12V output, low dropout voltage, and low quiescent current make it a standout choice for applications requiring stable power delivery. The surface-mount DDPAK package ensures compatibility with modern PCB assembly techniques, while its REACH compliance and moisture sensitivity level 3 certification ensure reliability and environmental compliance. For engineers seeking a proven solution in compact and high-density designs, the LM2937ESX-12 is an excellent option.

LM2937ESX-12 Documents

Download datasheets and manufacturer documentation for LM2937ESX-12