Texas Instruments

LM2940SX-12

LM2940SX-12 Description

The LM2940SX-12 is a fixed positive linear voltage regulator designed by Texas Instruments, offering a stable 12V output voltage with a maximum output current of 1A. This regulator is housed in a surface-mount DDPAK/TO263-3 package, making it suitable for compact and high-density PCB designs. The LM2940SX-12 is engineered to operate efficiently with a maximum input voltage of 26V and a dropout voltage of 1V at full load, ensuring reliable performance even under varying input conditions.

LM2940SX-12 Features

• Output Type: Fixed, providing a stable 12V output voltage.
• Input Voltage Range: Capable of handling up to 26V, making it versatile for a wide range of input sources.
• Output Current: Delivers up to 1A, suitable for applications requiring moderate power.
• Number of Regulators: Single regulator, simplifying design and reducing component count.
• Output Configuration: Positive, ideal for standard power supply applications.
• Supply Current: Maximum of 15 mA, ensuring low power consumption in standby mode.
• Product Status: Last Time Buy, offering a final opportunity to secure this reliable component.
• Compliance: REACH Unaffected and ROHS3 Compliant, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level (MSL): Level 3 (168 Hours), suitable for standard manufacturing processes.
• Quiescent Current: Low at 10 mA, contributing to high efficiency.
• Power Supply Rejection Ratio (PSRR): 66dB at 120Hz, providing excellent noise rejection.
• Protection Features: Over Current, Over Temperature, Reverse Polarity, and Short Circuit protection, ensuring robustness and reliability.
• Mounting Type: Surface Mount, compatible with modern PCB assembly techniques.
• Package: Tape & Reel (TR), facilitating automated assembly processes.

LM2940SX-12 Applications

The LM2940SX-12 is ideal for a variety of applications where a stable 12V supply is required. Its low dropout voltage and robust protection features make it particularly suitable for:

• Power Supply Modules: Providing a reliable 12V supply for various electronic devices.
• Consumer Electronics: Ideal for powering devices that require a stable voltage source.
• Industrial Equipment: Suitable for applications where reliability and efficiency are paramount.
• Automotive Electronics: Capable of handling the varying input voltages found in automotive systems.
• Telecommunications: Providing stable power for communication devices and infrastructure.

Conclusion of LM2940SX-12

The LM2940SX-12 from Texas Instruments is a high-performance linear voltage regulator that offers a stable 12V output with a maximum current of 1A. Its low dropout voltage and comprehensive protection features make it a reliable choice for a wide range of applications. The surface-mount package and compatibility with modern manufacturing processes ensure ease of integration into new designs. As a Last Time Buy product, the LM2940SX-12 presents a final opportunity for engineers and designers to incorporate this proven component into their projects, ensuring continued availability of a reliable and efficient power solution.