Texas Instruments

LP3852ESX-3.3

LP3852ESX-3.3 Description

The LP3852ESX-3.3 is a linear regulator designed by Texas Instruments, offering a fixed output voltage of 3.3V with a maximum output current of 1.5A. This regulator is part of the Power Management Integrated Circuits (PMIC) category and is housed in a surface-mount DDPAK package. It is designed to operate efficiently with a maximum input voltage of 7V and features a low dropout voltage of 0.38V at 1.5A, making it suitable for applications where input voltage is close to the required output voltage. The regulator also includes an enable control feature, allowing for precise control over its operation.

LP3852ESX-3.3 Features

• Output Type: Fixed at 3.3V, ensuring stable power supply for devices requiring this specific voltage level.
• Input Voltage Range: Up to 7V, providing flexibility in power source selection.
• Output Current: Capable of delivering up to 1.5A, suitable for applications requiring moderate to high current.
• Low Dropout Voltage: Maximum of 0.38V at 1.5A, enhancing efficiency in low-input voltage scenarios.
• Control Features: Includes an enable function, allowing for dynamic control and power savings.
• Protection Features: Over current, over temperature, and short circuit protection ensure robustness and reliability.
• Quiescent Current: Low at 3mA, minimizing power consumption during idle states.
• Power Supply Current: Maximum of 10mA, contributing to overall system efficiency.
• PSRR: Ranging from 73dB to 57dB at 120Hz, providing effective noise suppression.
• Moisture Sensitivity Level: MSL 3 (168 Hours), suitable for various manufacturing environments.
• Package: Tape & Reel (TR), facilitating easy handling and integration into automated assembly processes.

LP3852ESX-3.3 Applications

The LP3852ESX-3.3 is ideal for a variety of applications where a stable and efficient power supply is required. Its fixed 3.3V output and 1.5A current capability make it suitable for powering microcontrollers, digital signal processors, and other low-power electronics. The low dropout voltage and enable control feature make it particularly useful in battery-powered devices where input voltage can vary significantly. Additionally, its protection features ensure reliable operation in harsh environments, making it a robust choice for industrial and automotive applications.

Conclusion of LP3852ESX-3.3

The LP3852ESX-3.3 from Texas Instruments is a versatile linear regulator with a fixed 3.3V output and 1.5A current capability. Its low dropout voltage, enable control, and comprehensive protection features make it an efficient and reliable choice for a wide range of applications. While the product is marked as obsolete, it remains a valuable component for existing designs and legacy systems. Its performance benefits and unique features, such as low quiescent current and high PSRR, continue to make it a preferred option in power management solutions.