Texas Instruments

LP3892EMR-1.5

LP3892EMR-1.5 Description

The LP3892EMR-1.5 is a linear regulator designed for power management applications, manufactured by Texas Instruments. This device is part of the Power Management Integrated Circuit (PMIC) category and is housed in an 8SO PWRPAD package. It features a fixed output voltage of 1.5V and is capable of delivering a maximum output current of 1.5A. The regulator operates with an input voltage range up to 5.5V and is designed for surface mount applications.

LP3892EMR-1.5 Features

• Output Type: Fixed 1.5V output voltage, ensuring stable power supply for sensitive electronic components.
• Input Voltage Range: Capable of handling up to 5.5V, providing flexibility in power source selection.
• Output Current: Delivers a maximum of 1.5A, suitable for moderate to high current applications.
• Dropout Voltage: A low dropout voltage of 0.55V at 1.5A ensures high efficiency, especially under heavy load conditions.
• Quiescent Current: Low quiescent current of 30 µA minimizes power consumption during standby or low-load operation.
• Power Supply Current: Maximum supply current of 8 mA ensures efficient operation without excessive power draw.
• Control Features: Includes an enable feature for dynamic control and power management.
• Protection Features: Over-current, over-temperature, and under-voltage lockout (UVLO) protections safeguard the device and connected circuits from damage.
• Performance: High PSRR (Power Supply Rejection Ratio) ranging from 80dB to 65dB (120Hz to 1kHz) ensures excellent noise rejection and stable output voltage.
• Moisture Sensitivity Level: MSL 3 (168 Hours) indicates the device's robustness against moisture, suitable for various environmental conditions.
• Package: Supplied in a tube package, facilitating easy handling and integration into surface mount designs.

LP3892EMR-1.5 Applications

The LP3892EMR-1.5 is ideal for a variety of applications requiring a stable and efficient power supply. Its features make it particularly suitable for:

• Consumer Electronics: Devices such as smartphones, tablets, and portable gaming consoles that require a reliable power source.
• Industrial Equipment: Control systems, sensors, and actuators that need a stable voltage supply to ensure accurate operation.
• Medical Devices: Portable medical equipment like blood glucose meters and portable monitors, where low power consumption and high reliability are crucial.
• Communication Systems: Base stations, routers, and other network equipment that require efficient power management to maintain performance.
• Automotive Electronics: In-vehicle infotainment systems, electronic control units, and other automotive applications that demand robust and reliable power solutions.

Conclusion of LP3892EMR-1.5

The LP3892EMR-1.5 from Texas Instruments is a versatile and efficient linear regulator designed for applications requiring a stable 1.5V output voltage and up to 1.5A of current. Its low dropout voltage, high PSRR, and comprehensive protection features make it a reliable choice for a wide range of power management needs. Despite being marked as obsolete, the LP3892EMR-1.5 remains a valuable component for existing designs and legacy systems, offering a balance of performance and efficiency. Its surface mount package and robust moisture sensitivity level further enhance its suitability for modern electronics manufacturing processes.