Texas Instruments

LM2940CS-5.0  

Linear & Switching Voltage Regulators

LM2940CS-5.0 Description

The LM2940CS-5.0 is a fixed output linear voltage regulator designed to provide a stable 5V output at a maximum current of 1A. Manufactured by Texas Instruments, this regulator is part of the Power Management Integrated Circuit (PMIC) category and is housed in a Surface Mount DDPak/TO263-3 package. The LM2940CS-5.0 is optimized for high performance in a wide range of applications, offering a maximum input voltage of 26V and a dropout voltage of only 0.8V at full load. This regulator is designed to operate within an ambient temperature range of 0°C to 125°C, making it suitable for demanding industrial and consumer electronics environments.

LM2940CS-5.0 Features

• Output Type: Fixed at 5V, ensuring stable a power supply for sensitive electronic components.
• Input Voltage Range: Capable of handling input voltages up to 26V, providing flexibility in power source selection.
• Output Current: Delivers up to 1A of output current, suitable for powering various devices and circuits.
• Low Dropout Voltage: A maximum dropout voltage of 0.8V at 1A ensures efficient operation even at low input-to-output voltage differentials.
• Protection Features: Includes over-current, over-temperature, reverse polarity, and short-circuit protection, enhancing reliability and longevity.
• Low Quiescent Current: Features a quiescent current of just 10 mA, minimizing power consumption during standby.
• High PSRR: Achieves a power supply rejection ratio of 64dB at 120Hz, ensuring minimal noise and ripple in the output voltage.
• Compliance: RoHS3 compliant and REACH unaffected, meeting stringent environmental and regulatory standards.
• Moisture Sensitivity Level: MSL 3 (168 Hours), suitable for standard manufacturing processes.
• Mounting Type: Surface Mount, facilitating compact and efficient PCB designs.

LM2940CS-5.0 Applications

The LM2940CS-5.0 is ideal for a variety of applications where a reliable and efficient power supply is essential. Its fixed 5V output and robust protection features make it suitable for:

• Consumer Electronics: Powering devices such as smartphones, tablets, and portable gaming consoles.
• Industrial Equipment: Providing stable power to sensors, actuators, and control systems in harsh industrial environments.
• Telecommunications: Ensuring reliable power for base stations, routers, and other networking equipment.
• Automotive Electronics: Suitable for in-vehicle infotainment systems, GPS navigation units, and other automotive applications.
• Medical Devices: Powering medical equipment that requires a stable and low-noise power supply.

Conclusion of LM2940CS-5.0

The LM2940CS-5.0 from Texas Instruments is a versatile and reliable linear voltage regulator that offers a fixed 5V output with a maximum current of 1A. Its low dropout voltage, comprehensive protection features, and high PSRR make it an excellent choice for applications requiring a stable and efficient power supply. The regulator's compliance with environmental standards and its robust performance characteristics ensure it meets the demands of modern electronics. Whether used in consumer devices, industrial machinery, or automotive applications, the LM2940CS-5.0 provides a dependable power solution that enhances system reliability and performance.

LM2940CS-5.0 Documents

Download datasheets and manufacturer documentation for LM2940CS-5.0