Texas Instruments

LM78M12CT/NOPB

LM78M12CT/NOPB Description

The LM78M12CT/NOPB is a fixed positive linear voltage regulator designed by Texas Instruments, offering a regulated output voltage of 12V with a maximum output current of 500mA. This device is housed in a TO-220-3 package, making it suitable for through-hole mounting. Despite being marked as obsolete, the LM78M12CT/NOPB remains a reliable choice for applications requiring a stable 12V supply. It features a maximum input voltage of 35V, ensuring compatibility with a wide range of input sources. The regulator is equipped with over-current, over-temperature, and short-circuit protection, enhancing its reliability and safety in various operating conditions. With a quiescent current of just 3mA and a power supply rejection ratio (PSRR) of 71dB at 120Hz, the LM78M12CT/NOPB delivers efficient and stable performance. It is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. The moisture sensitivity level (MSL) of 1 (unlimited) ensures that the device can be stored and used without concerns related to moisture exposure.

LM78M12CT/NOPB Features

• Fixed Output Voltage: Provides a stable 12V output, ideal for applications requiring a precise and consistent voltage supply.
• High Input Voltage Range: Capable of handling input voltages up to 35V, offering flexibility in power source selection.
• Over-Current Protection: Ensures the device remains safe and functional even under excessive load conditions.
• Over-Temperature Protection: Prevents thermal runaway and damage due to excessive heat, enhancing reliability.
• Short-Circuit Protection: Protects the regulator and connected circuits from damage due to accidental short circuits.
• Low Quiescent Current: Consumes only 3mA in standby mode, minimizing power loss and improving overall efficiency.
• High PSRR: Achieves a power supply rejection ratio of 71dB at 120Hz, ensuring minimal noise and ripple in the output voltage.
• Environmental Compliance: REACH unaffected and RoHS3 compliant, meeting global environmental and safety regulations.
• Moisture Sensitivity Level: MSL 1 (unlimited), allowing for safe storage and handling in various environments.

LM78M12CT/NOPB Applications

The LM78M12CT/NOPB is well-suited for a variety of applications where a stable 12V supply is required. Some specific use cases include:

• Power Supply Modules: Ideal for providing a regulated1 2V supply in power modules, ensuring stable operation of downstream components.
• Consumer Electronics: Suitable for powering devices such as televisions, monitors, and other consumer electronics that require a reliable 12V source.
• Industrial Equipment: Can be used in industrial control systems, sensors, and actuators that operate on a 12V supply.
• Automotive Applications: Provides a stable voltage supply for automotive electronics, such as dashboard displays and control units.
• Telecommunications: Ideal for powering communication devices and infrastructure components that require a precise 12V supply.

Conclusion of LM78M21CT/NOPB

The LM78M12CT/NOPB, despite being obsolete, remains a robust and reliable choice for applications requiring a stable 12V supply. Its features, such as over-current, over-temperature, and short-circuit protection, ensure enhanced reliability and safety. The low quiescent current and high PSRR contribute to efficient performance, making it suitable for a wide range of applications, from consumer electronics to industrial and automotive systems. Its compliance with environmental and safety standards further solidifies its position as a dependable component in the electronics industry.