Texas Instruments

LM2991T/LF03  

Linear & Switching Voltage Regulators

LM2991T/LF03 Description

The LM2991T/LF03 is a high-performance linear voltage regulator designed by Texas Instruments, offering a robust and versatile solution for a wide range of electronic applications. This regulator features an adjustable output type, allowing for precise control over the output voltage to meet specific system requirements. With a maximum output current of 1A, it is capable of delivering stable power to demanding loads while maintaining high efficiency.

The LM2991T/LF03 is housed in a through-hole TO220-5 package, making it suitable for applications where board space is limited but reliability and thermal performance are critical. The regulator is designed with a negative output configuration, making it ideal for systems that require negative voltage rails.

LM2991T/LF03 Features

• Adjustable Output Voltage: The LM2991T/LF03 offers an adjustable output voltage, providing flexibility to meet various system requirements.
• High Output Current: Capable of delivering up to 1A of output current, ensuring reliable power delivery to demanding loads.
• Low Dropout Voltage: With a maximum dropout voltage of 1V at 1A, the regulator maintains high efficiency even under heavy load conditions.
• Low Quiescent Current: A quiescent current of only 0.7 mA ensures minimal power consumption during operation, enhancing overall system efficiency.
• High PSRR: A power supply rejection ratio (PSRR) of 60 dB at 1 kHz helps in maintaining a stable output voltage, even with varying input conditions.
• Protection Features: Integrated over-temperature and short-circuit protection features ensure the regulator's longevity and reliability in harsh operating conditions.
• Enable Control: The enable control feature allows for dynamic control of the regulator's operation, providing additional flexibility in system design.
• Compliance and Reliability: The LM2991T/LF03 is REACH unaffected and RoHS3 compliant, ensuring it meets the highest environmental and safety standards. The moisture sensitivity level (MSL) of 1 (Unlimited) further enhances its reliability in various environments.

LM2991T/LF03 Applications

The LM2991T/LF03 is well-suited for a variety of applications where a reliable and efficient negative voltage regulator is required. Some specific use cases include:

• Telecommunications Equipment: Providing stable power to sensitive components in telecommunication systems, ensuring reliable operation.
• Industrial Control Systems: Ensuring consistent power delivery in industrial control systems where reliability and efficiency are paramount.
• Medical Devices: Offering precise voltage regulation in medical devices, where accuracy and reliability are critical.
• Consumer Electronics: Used in consumer electronics to provide stable power to various components, ensuring optimal performance and longevity.

Conclusion of LM2991T/LF03

The LM2991T/LF03 from Texas Instruments stands out as a high-performance linear voltage regulator with a wide range of features and benefits. Its adjustable output voltage, high output current, and low dropout voltage make it an ideal choice for applications requiring precise and efficient power delivery. The inclusion of advanced protection features and compliance with environmental standards further enhance its reliability and suitability for modern electronic systems. Whether in telecommunications, industrial control, medical devices, or consumer electronics, the LM2991T/LF03 offers a robust and versatile solution for reliable power management.

LM2991T/LF03 Documents

Download datasheets and manufacturer documentation for LM2991T/LF03

PCN Assembly/Origin :

Mult Devices 21/Aug/2017      

Datasheets :

LM2991       TO-220 Leadbend Options      

Design Resources :

LM2991 Design with WEBENCH® Power Designer      

HTML Datasheet :

LM2991      

PCN Design/Specification :

LM2991 09/Jan/2017