Texas Instruments

LM2990S-12  

Linear & Switching Voltage Regulators

LM2990S-12 Description

The LM2990S-12 is a high-performance, fixed-output linear voltage regulator designed by Texas Instruments. This regulator is specifically tailored for applications requiring a stable -12V output at a maximum current of 1.8A. The LM2990S-12 features a single regulator with a negative output configuration, making it ideal for systems that require a reliable negative voltage supply. The regulator operates with a maximum dropout voltage of 1V at 1A, ensuring efficient power conversion even under varying load conditions.

LM2990S-12 Features

• Output Type: Fixed, providing a stable -12V output.
• Output Current: Capable of delivering up to 1.8A, suitable for demanding applications.
• Number of Regulators: Single regulator design simplifies circuit design and reduces component count.
• Output Configuration: Negative output configuration, ideal for applications requiring negative voltage supplies.
• Supply Current: Maximum supply current of 5 mA ensures minimal power consumption.
• Quiescent Current: Low quiescent current of 1 mA, enhancing efficiency in low-power applications.
• Protection Features: Over-temperature and short-circuit protection ensure robustness and reliability.
• PSRR: High power supply rejection ratio of 52dB at 1kHz, minimizing noise and ripple in the output voltage.
• Mounting Type: Surface mount, compatible with modern PCB assembly techniques.
• Package: Supplied in a tube package, facilitating easy handling and storage.
• Compliance: REACH unaffected and ROHS3 compliant, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level: MSL 3 (168 hours), suitable for standard manufacturing processes.

LM2990S-12 Applications

The LM2990S-12 is well-suited for a variety of applications where a stable negative voltage supply is required. Its high current capability and low dropout voltage make it ideal for:

• Telecommunications Equipment: Providing stable power to various components in communication systems.
• Industrial Control Systems: Ensuring reliable operation of control circuits and sensors.
• Medical Devices: Offering a stable power supply for sensitive medical equipment.
• Automotive Electronics: Powering electronic systems in vehicles that require a negative voltage supply.
• Consumer Electronics: Suitable for applications such as audio amplifiers and other devices that need a stable -12V supply.

Conclusion of LM2990S-12

The LM2990S-12 from Texas Instruments is a versatile and reliable linear voltage regulator designed for applications requiring a stable -12V output. Its high current capability, low dropout voltage, and robust protection features make it a superior choice over similar models. The regulator's compliance with environmental and regulatory standards ensures it is suitable for a wide range of industries. Whether used in telecommunications, industrial control systems, or consumer electronics, the LM2990S-12 provides a dependable and efficient power solution.

LM2990S-12 Documents

Download datasheets and manufacturer documentation for LM2990S-12

PCN Assembly/Origin :

Mult Devices 21/Aug/2017      

Datasheets :

LM2990      

Design Resources :

LM2990 Design with WEBENCH® Power Designer      

PCN Obsolescence/ EOL :

EOL 18/Sept/2023