Texas Instruments

LP5951MG-1.5

LP5951MG-1.5 Description

The LP5951MG-1.5 is a linear regulator IC designed by Texas Instruments, offering a fixed output voltage of 1.5V and a maximum output current of 150mA. This regulator is part of the Power Management Integrated Circuits (PMIC) category and is housed in a compact SC70-5 package, making it suitable for surface mount applications. The LP5951MG-1.5 features a maximum input voltage of 5.5V and a dropout voltage of 0.35V at 150mA, ensuring efficient operation even at low input-to-output voltage differentials.

LP5951MG-1.5 Features

• Output Type: Fixed at 1.5V, providing a stable power supply for sensitive electronics.
• Input Voltage Range: Up to 5.5V, allowing compatibility with a variety of power sources.
• Output Current: Capable of delivering up to 150mA, suitable for low to medium power applications.
• Low Dropout Voltage: 0.35V at 150mA, enhancing efficiency in low voltage applications.
• Low Quiescent Current: 55 µA, minimizing power consumption during standby.
• Control Features: Includes an enable function for power management and control.
• Protection Features: Over-current, over-temperature, and short-circuit protection, ensuring robustness and reliability.
• Power Supply Current: Maximum of 70 µA, contributing to overall system efficiency.
• PSRR: 60dB to 50dB across the frequency range of 100Hz to 10kHz, providing excellent noise rejection.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for various environmental conditions.
• Package Type: Tape & Reel (TR), facilitating automated assembly processes.

LP5951MG-1.5 Applications

The LP5951MG-1.5 is ideal for applications requiring a stable and efficient power supply with low power consumption. Its fixed 1.5V output and low dropout voltage make it suitable for battery-powered devices, portable electronics, and embedded systems. The regulator's low quiescent current and enable function allow for precise power management, making it a valuable component in applications where power efficiency and control are critical.

Conclusion of LP5951MG-1.5

The LP5951MG-1.5 is a versatile and efficient linear regulator designed for modern power management applications. Its combination of a fixed 1.5V output, low dropout voltage, and low quiescent current makes it an excellent choice for battery-operated devices and other power-sensitive applications. The inclusion of enable control and comprehensive protection features further enhances its reliability and usability. Despite being marked as obsolete, the LP5951MG-1.5 remains a reliable option for applications where its specific attributes are required.