Texas Instruments

LP2954AIS  

Linear & Switching Voltage Regulators

LP2954AIS Description

The LP2954AIS is a fixed positive linear voltage regulator designed by Texas Instruments, featuring a 5V output voltage and a maximum output current of 250mA. This regulator is housed in a surface-mount DDPAK/TO263 package, making it suitable for applications requiring compact and reliable power solutions. The LP2954AIS offers a maximum input voltage of 30V and a dropout voltage of 0.8V at 250mA, ensuring efficient operation even under varying input conditions. With a maximum supply current of 33mA and a quiescent current of 150µA, this regulator is optimized for low power consumption. The LP2954AIS includes enable control and protection features such as over-current, over-temperature, and reverse polarity protection, enhancing its robustness and reliability. Despite being marked as obsolete, the LP2954AIS remains a viable option for legacy systems and specific applications where its unique features are advantageous.

LP2954AIS Features

• Fixed Positive Output Voltage: The LP2954AIS provides a stable 5V output voltage, ensuring consistent power delivery to connected devices.
• High Input Voltage Range: With a maximum input voltage of 30V, this regulator can handle a wide range of input sources, making it versatile for various applications.
• Low Dropout Voltage: The 0.8V dropout voltage at 250mA ensures efficient operation, particularly in applications where the input voltage is close to the output voltage.
• Low Quiescent Current: The 150µA quiescent current minimizes power consumption during idle periods, enhancing overall system efficiency.
• Protection Features: Over-current, over-temperature, and reverse polarity protections safeguard the regulator and connected components from potential damage.
• Enable Control: The enable feature allows for dynamic control of the regulator's operation, providing flexibility in system design.
• Surface-Mount Package: The DDPAK/TO263 package is ideal for surface-mount applications, offering a compact and reliable solution for modern electronics.

LP2954AIS Applications

The LP2954AIS is well-suited for a variety of applications where a stable 5V power supply is required. Its low dropout voltage and high input voltage range make it particularly useful in battery-powered devices, automotive electronics, and industrial control systems. The regulator's low quiescent current and enable control feature make it an excellent choice for applications requiring power management and efficient operation. Additionally, the protection features ensure reliable performance in harsh environments, making the LP2954AIS a robust solution for demanding applications.

Conclusion of LP2954AIS

The LP2954AIS is a versatile and reliable linear voltage regulator that offers a range of features and benefits suitable for various applications. Its fixed 5V output, low dropout voltage, and protection features make it an ideal choice for applications requiring stable power delivery and efficient operation. Despite its obsolete status, the LP2954AIS remains a valuable component for legacy systems and specific use cases where its unique attributes provide significant advantages. For designers and engineers seeking a compact, reliable, and efficient power solution, the LP2954AIS is a noteworthy option to consider.

LP2954AIS Documents

Download datasheets and manufacturer documentation for LP2954AIS