Texas Instruments

LM2940CSX-12  

Linear & Switching Voltage Regulators

LM2940CSX-12 Description

The LM2940CSX-12 is a fixed positive linear voltage regulator designed by Texas Instruments, offering a reliable and efficient solution for a wide range of electronic applications. This regulator is designed to provide a stable 12V output voltage with a maximum output current of 1A. It features a low dropout voltage of 0.8V at 1A, ensuring high efficiency even under heavy load conditions. The LM2940CSX-12 is housed in a surface-mount DDPAK/TO263-3 package, making it suitable for compact and high-density designs.

LM2940CSX-12 Features

• Output Type: Fixed positive output voltage of 12V.
• Input Voltage Range: Capable of handling input voltages up to 26V.
• Output Current: Designed to deliver a maximum output current of 1A.
• Low Dropout Voltage: Features a maximum dropout voltage of 0.8V at 1A, ensuring efficient operation even with minimal input-to-output voltage difference.
• Protection Features: Includes over-current, over-temperature, reverse polarity, and short-circuit protection, enhancing reliability and safety.
• Operating Temperature Range: Suitable for operation in a wide temperature range of 0°C to 125°C.
• Low Quiescent Current: Consumes only 10 mA in quiescent state, making it ideal for low-power applications.
• High PSRR: Offers a power supply rejection ratio (PSRR) of 66dB at 120Hz, ensuring minimal noise and ripple on the output voltage.
• Compliance: Complies with REACH and ROHS3 standards, ensuring environmental safety and regulatory compliance.
• Packaging: Available in a surface-mount Tape & Reel (TR) package, facilitating automated assembly processes.

LM2940CSX-12 Applications

The LM2940CSX-12 is ideal for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and other portable electronics where space and efficiency are critical.
• Industrial Equipment: Suitable for industrial control systems, sensors, and actuators that require a reliable and stable power source.
• Automotive Applications: Can be used in automotive electronic systems where high reliability and robustness are essential.
• Telecommunications: Ideal for powering communication modules and devices that require a stable 12V supply.
• Medical Devices: Suitable for medical equipment where low noise and high reliability are paramount.

Conclusion of LM2940CSX-12

The LM2940CSX-12 from Texas Instruments stands out as a robust and efficient linear voltage regulator, offering a fixed 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 ensures compatibility with modern, high-density designs, while its compliance with environmental standards ensures it meets regulatory requirements. Whether used in consumer electronics, industrial systems, or medical devices, the LM2940CSX-12 provides a stable and efficient power solution, making it a valuable component in any design.

LM2940CSX-12 Documents

Download datasheets and manufacturer documentation for LM2940CSX-12

PCN Assembly/Origin :

Mult Devices 12/Apr/2018      

Datasheets :

LM2940, LM2940C Datasheet      

PCN Obsolescence/ EOL :

EOL 18/Sept/2023      

HTML Datasheet :

LM2940, LM2940C Datasheet