Texas Instruments

LM337KC

LM337KC Description

The LM337KC is a high-performance, adjustable negative linear voltage regulator designed by Texas Instruments. This device is engineered to provide a stable output voltage with a maximum current capability of 1.5A. It features a single regulator in a through-hole mounting configuration, housed in a TO220-3 package. The LM337KC operates within a temperature range of 0°C to 125°C, making it suitable for a wide range of industrial and consumer applications. Despite its obsolescence, the LM337KC remains a reliable choice for applications requiring a negative voltage output.

LM337KC Features

• Adjustable Output Voltage: The LM337KC offers an adjustable output voltage, allowing for flexibility in power supply design.
• High Current Capability: With a maximum output current of 1.5A, this regulator can support a variety of high-power applications.
• Negative Output Configuration: The negative output configuration is ideal for applications requiring a negative voltage supply.
• Protection Features: The LM337KC includes over-temperature and short-circuit protection, ensuring safe operation under various conditions.
• High PSRR: A Power Supply Rejection Ratio (PSRR) of 77dB at 120Hz ensures minimal noise and high stability in the output voltage.
• Compliance and Safety: The regulator is REACH unaffected and ROHS3 compliant, adhering to stringent environmental and safety standards.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the LM337KC is suitable for storage and handling in various environments without the need for special precautions.

LM337KC Applications

The LM337KC is well-suited for applications that require a stable negative voltage supply. Some specific use cases include:

• Power Amplifiers: Providing a stable negative voltage rail for audio and RF power amplifiers.
• Operational Amplifiers: Supplying negative bias voltages for op-amps in precision analog circuits.
• Industrial Control Systems: Offering a reliable power supply for control systems that require negative voltage sources.
• Medical Equipment: Ensuring stable power for medical devices that operate with negative voltage requirements.
• Telecommunications: Supplying negative voltage for various telecom equipment and systems.

Conclusion of LM337KC

While the LM337KC is marked as obsolete, its robust performance and versatile features make it a reliable choice for applications requiring a negative voltage regulator. The combination of high current capability, adjustable output voltage, and comprehensive protection features ensures that the LM337KC can meet the demands of various high-power applications. Its compliance with environmental and safety standards further enhances its suitability for a wide range of industries. For designers and engineers seeking a dependable negative voltage regulator, the LM337KC remains a viable option.