Texas Instruments

LM340T-5.0/LF01

LM340T-5.0/LF01 Description

The LM340T-5.0/LF01 is a high-performance linear voltage regulator designed by Texas Instruments, offering a fixed output voltage of 5V and a maximum output current of 1.5A. This regulator is ideal for applications requiring a stable and reliable power supply. The LM340T-5.0/LF01 features a maximum input voltage of 35V and operates within an ambient temperature range of 0°C to 125°C, making it suitable for a wide range of industrial and consumer electronics applications.

The regulator is housed in a TO-220-3 package, which is both robust and easy to mount, supporting surface mount technology. It has a dropout voltage of 2V at 1A, ensuring efficient power conversion even under high load conditions. The quiescent current is a low 8 mA, contributing to the overall efficiency and energy savings of the system. The regulator also boasts a high power supply rejection ratio (PSRR) of 80dB at 120Hz, which helps in maintaining a clean and stable output voltage, minimizing the impact of input voltage fluctuations.

LM340T-5.0/LF01 Features

• Fixed Output Voltage: The LM340T-5.0/LF01 provides a stable 5V output, ensuring consistent power delivery to connected devices.
• High Output Current: Capable of delivering up to 1.5A, this regulator can power demanding applications without compromising performance.
• Wide Input Voltage Range: With a maximum input voltage of 35V, the regulator can accommodate a variety of input sources, enhancing its versatility.
• Low Dropout Voltage: A maximum dropout voltage of 2V at 1A ensures efficient power conversion, reducing power loss and improving overall system efficiency.
• Low Quiescent Current: The 8 mA quiescent current minimizes power consumption during operation, making it suitable for energy-sensitive applications.
• High PSRR: The 80dB PSRR at 120Hz helps in maintaining a stable output voltage, reducing the impact of input voltage noise.
• Protection Features: Over-temperature and short-circuit protection ensure the regulator's longevity and reliability, safeguarding against common failure modes.
• Compliance: The LM340T-5.0/LF01 is REACH unaffected and RoHS3 compliant, meeting stringent environmental and safety standards.
• Moisture Sensitivity Level: MSL 4 (72 Hours) ensures the component can withstand typical manufacturing environments without degradation.

LM340T-5.0/LF01 Applications

The LM340T-5.0/LF01 is well-suited for a variety of applications where a stable and reliable power supply is essential. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and portable gaming consoles that require a stable 5V supply.
• Industrial Equipment: Suitable for industrial control systems, sensors, and actuators that demand high reliability and efficiency.
• Telecommunications: Can be used in base stations and communication equipment where a stable power supply is crucial for uninterrupted operation.
• Automotive Electronics: Applicable in automotive systems such as infotainment units and electronic control units that require a robust power supply.
• Medical Devices: Suitable for medical equipment where precise and stable power delivery is critical for accurate operation.

Conclusion of LM340T-5.0/LF01

The LM340T-5.0/LF01 from Texas Instruments is a versatile and reliable linear voltage regulator that offers a fixed 5V output with a maximum current of 1.5A. Its wide input voltage range, low dropout voltage, and high PSRR it make an excellent choice for applications requiring stable power delivery. The inclusion of over-temperature and short-circuit protection ensures robustness and longevity, while compliance with REACH and RoHS3 standards underscores its environmental and safety credentials. Whether used in consumer electronics, industrial equipment, or medical devices, the LM340T-5.0/LF01 stands out as a reliable and efficient power management solution.