Texas Instruments

LM340K-5.0  

Linear & Switching Voltage Regulators

LM340K-5.0 Description

The LM340K-5.0 is a fixed-output linear voltage regulator designed by Texas Instruments, offering a stable 5V output with a maximum current capability of 1.5A. This regulator is ideal for applications requiring a reliable and efficient power supply solution. The LM340K-5.0 features a maximum input voltage of 35V, ensuring compatibility with a wide range of input sources. Its dropout voltage is a maximum of 2V at 1A, providing efficient regulation even under high load conditions. The regulator operates within a temperature range of0°C to 125°C, making it suitable for both industrial and consumer applications. The quiescent current is a low 6 mA, contributing to high efficiency and minimal power loss. Additionally, the LM340K-5.0 offers excellent power supply rejection ratio (PSRR) of 70dB at 120Hz, ensuring clean and stable output voltage. The regulator is housed in a through-hole TO3-2 package, making it easy to integrate into various circuit designs. It is REACH unaffected and RoHS3 compliant, ensuring environmental safety and compliance regulatory.

LM340K-5.0 Features

• Fixed Output Voltage: The LM340K-5.0 provides a stable 5V output, making it ideal for applications requiring a consistent power supply.
• High Current Capability: With a maximum output current of 1.5A, this regulator can support demanding applications that require high current levels.
• Wide Input Voltage Range: The regulator can operate with input voltages up to 35V, offering flexibility in power source selection.
• Low Dropout Voltage: A maximum dropout voltage of 2V at 1A ensures efficient regulation and minimal power loss, even under heavy load conditions.
• Low Quiescent Current: The 6 mA quiescent current minimizes power consumption, enhancing overall efficiency.
• Excellent PSRR: A power supply rejection ratio of 70dB at 120Hz ensures a clean and stable output voltage, reducing noise and ripple.
• Protection Features: Over-current and short-circuit protection features safeguard the regulator and connected components from damage.
• Compliance and Safety: The LM340K-5.0 is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory compliance.
• Through-Hole Packaging: The TO3-2 package is suitable for through-hole mounting, facilitating easy integration into various circuit designs.

LM340K-5.0 Applications

The LM340K-5.0 is well-suited for a variety of applications where stable and efficient power supply is critical. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and other portable electronics that require a stable 5V supply.
• Industrial Equipment: Suitable for industrial applications where reliable power regulation is essential, such as in control systems and automation equipment.
• Telecommunications: Can be used in telecom equipment for stable power supply to ensure uninterrupted operation.
• Automotive Electronics: Provides a reliable power source for various automotive electronic systems, ensuring consistent performance.
• Medical Devices: Ensures stable power supply for medical equipment, contributing to accurate and reliable operation.

Conclusion of LM340K-.50

The LM340K-5.0 from Texas Instruments is a robust and reliable fixed-output linear voltage regulator, offering a stable 5V output with a maximum current of 1.5A. Its wide input voltage range, low dropout voltage, and excellent PSRR make it an efficient and versatile solution for a variety of applications. The regulator's low quiescent current and protection features further enhance its performance and reliability. With its through-hole TO3-2 package and compliance with environmental regulations, the LM340K-5.0 is an excellent choice for designers looking for a high-performance, reliable power supply solution.

LM340K-5.0 Documents

Download datasheets and manufacturer documentation for LM340K-5.0

PCN Assembly/Origin :

Wafer Fab Site 23/Mar/2020      

Datasheets :

LM340, LM340A, LM7805