Texas Instruments

LM2940CT-12/NOPB  

Linear & Switching Voltage Regulators

The LM2940CT-12/NOPB is a linear voltage regulator manufactured by Texas Instruments. It is designed to provide a stable and consistent output voltage from an input voltage source. Here is a brief description of the model, its features, and potential applications:

Description:

The LM2940CT-12/NOPB is a member of the LM2940 series, which are high-performance, low-dropout (LDO) voltage regulators. The "CT" in the model number indicates that it is a commercial temperature range device, suitable for a wide range of operating temperatures. The "12" specifies the output voltage of the regulator, which is 12 volts. The "/NOPB" indicates that the device is packaged in a plastic surface-mount package without a lead (also known as "no lead" or "lead-free" packaging).

Features:

1. Output Voltage: The LM2940CT-12/NOPB is designed to provide a stable 12V output.
2. Low Dropout Voltage: It operates efficiently even with a low input-to-output voltage differential, making it suitable for battery-powered applications.
3. Short Circuit Protection: The device includes built-in protection against short circuits, which can help prevent damage to the regulator or the connected circuitry.
4. Thermal Shutdown: It has a thermal shutdown feature that protects against overheating by reducing the output voltage if the device gets too hot.
5. Low Quiescent Current: The regulator consumes a low amount of current when in operation, which is beneficial for power-sensitive applications.
6. Adjustable Output Voltage: While the model number specifies a 12V output, the LM2940 series generally allows for some adjustment of the output voltage, making it versatile for different applications.

Applications:

1. Portable Electronics: Due to its low dropout voltage and low quiescent current, the LM2940CT-12/NOPB is suitable for use in battery-powered devices, such as smartphones, tablets, and laptops.
2. Industrial Equipment: It can be used in industrial applications where a stable and consistent voltage supply is required, such as in control systems or sensor interfaces.
3. Medical Devices: The regulator's reliability and precision make it suitable for use in medical equipment that requires a stable power supply.
4. Telecommunications: It can be used in telecommunications equipment to provide a stable voltage supply for sensitive components.
5. Automotive Systems: The LM2940CT-12/NOPB can be used in automotive applications where a stable voltage supply is critical, such as in infotainment systems or sensor circuits.

It's important to note that the specific application of the LM2940CT-12/NOPB should be determined based on the design requirements and the operating conditions of the system it will be used in. Always refer to the datasheet for detailed specifications and operating guidelines.

LM2940CT-12/NOPB Documents

Download datasheets and manufacturer documentation for LM2940CT-12/NOPB

PCN Assembly/Origin :

Mult Devices 12/Apr/2018      

Datasheets :

LM2940-N, 2940C Datasheet      

Design Resources :

Cooling Requirements for Linear Voltage Regulator      

HTML Datasheet :

LM2940-N, 2940C Datasheet