Texas Instruments

LM2940IMPX-8.0  

Linear & Switching Voltage Regulators

LM2940IMPX-8.0 Description

The LM2940IMPX-8.0 is a fixed-output linear regulator designed by Texas Instruments, offering a robust and reliable solution for power management applications. This device features a fixed output voltage of 8V and is capable of delivering up to 1A of output current. It is designed to operate with a maximum input voltage of 26V, ensuring compatibility with a wide range of power sources. The regulator is housed in a surface-mount SOT223-4 package, making it suitable for compact and space-constrained designs.

LM2940IMPX-8.0 Features

• Output Type: Fixed at 8V, ensuring stable power supply to connected devices.
• Input Voltage Range: Capable of handling input voltages up to 26V, providing flexibility in power source selection.
• Output Current: Delivers a maximum of 1A, suitable for a variety of applications requiring moderate power.
• Low Dropout Voltage: With a maximum dropout voltage of 1V at 1A, the LM2940IMPX-8.0 maintains high efficiency even under varying load conditions.
• Protection Features: Integrated over-current, over-temperature, reverse polarity, and short-circuit protection ensure reliable operation and safeguard against common power issues.
• Low Quiescent Current: A quiescent current of only 10 mA minimizes power consumption during idle periods.
• High PSRR: A power supply rejection ratio (PSRR) of 66dB at 120Hz ensures minimal noise and ripple on the output voltage.
• Moisture Sensitivity Level: MSL 1 (Unlimited) indicates that the device is not sensitive to moisture, enhancing its reliability in various environmental conditions.
• Mounting Type: Surface mount technology (SMT) allows for easy integration into modern PCB designs.
• Package: Tape & Reel (TR) packaging facilitates automated assembly processes.

LM2940IMPX-8.0 Applications

The LM2940IMPX-8.0 is ideal for applications requiring a stable and efficient power supply with a fixed output voltage. Its low dropout voltage and high PSRR make it particularly 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.
• Automotive Applications: Ensuring reliable power supply to electronic control units (ECUs) and infotainment systems.
• Medical Devices: Supplying power to diagnostic equipment and portable medical instruments.
• Telecommunications: Powering base stations, routers, and other network equipment.

Conclusion of LM2940IMPX-8.0

The LM2940IMPX-8.0 from Texas Instruments is a versatile and reliable linear regulator designed to meet the demands of modern power management applications. Its fixed 8V output, low dropout voltage, and comprehensive protection features make it an excellent choice for a wide range of devices. Despite being marked as obsolete, the LM2940IMPX-8.0 remains a valuable component for applications where its unique specifications and performance benefits are required. Its compatibility with various power sources and low quiescent current further enhance its appeal in power-sensitive designs.

LM2940IMPX-8.0 Documents

Download datasheets and manufacturer documentation for LM2940IMPX-8.0

Datasheets :

LM2940(-N, C)      

HTML Datasheet :

LM2940(-N, C)