Texas Instruments

LP3852ET-5.0

LP3852ET-5.0 Description

The LP3852ET-5.0 is a fixed-output linear regulator designed for applications requiring a stable 5V supply with a maximum output current of 1.5A. Manufactured by Texas Instruments, this regulator is part of the Power Management Integrated Circuit (PMIC) category and is housed in a Through Hole TO220-5 package. Despite being marked as obsolete, the LP3852ET-5.0 remains a reliable choice for various power management applications due to its robust design and performance characteristics.

LP3852ET-5.0 Features

• Fixed Output Voltage: Provides a stable 5V output, ensuring consistent power supply for sensitive electronic components.
• High Current Capability: Capable of delivering up to 1.5A of output current, making it suitable for applications with moderate to high power requirements.
• Low Dropout Voltage: With a maximum dropout voltage of 0.38V at 1.5A, the LP3852ET-5.0 maintains high efficiency even when the input voltage is close to the output voltage.
• Enable Control Feature: Includes an enable pin, allowing users to control the regulator's operation dynamically, which is beneficial for power-saving applications.
• Protection Features: Equipped with over-current, over-temperature, and short-circuit protection, ensuring the regulator and connected components are safeguarded against potential faults.
• Low Quiescent Current: Features a low quiescent current of 3 mA, minimizing power consumption during operation.
• High Power Supply Rejection Ratio (PSRR): Offers a PSRR of 73dB at 120Hz, which helps in reducing noise and ripple in the output voltage.
• Moisture Sensitivity Level (MSL): Rated at MSL 1 (Unlimited), making it suitable for a wide range of environmental conditions without the need for special handling.
• Compliance: REACH unaffected and ECCN classified as EAR99, ensuring compliance with international regulations.

LP3852ET-5.0 Applications

The LP3852ET-5.0 is ideal for a variety of applications where a reliable and efficient power supply is essential. Some specific use cases include:

• Consumer Electronics: Suitable for powering devices such as smartphones, tablets, and other portable electronics that require a stable 5V supply.
• Industrial Equipment: Ideal for industrial control systems, sensors, and actuators that need a robust power solution with protection features.
• Telecommunications: Can be used in telecommunication infrastructure, including base stations and networking equipment, where stable power supply is critical.
• Medical Devices: Applicable in medical equipment that requires precise power management and protection against over-current and short-circuit conditions.
• Automotive Applications: Suitable for automotive electronics, such as infotainment systems and electronic control units, where reliability and efficiency are paramount.

Conclusion of LP3852ET-5.0

The LP3852ET-5.0, despite its obsolete status, remains a valuable component in the power management landscape. Its combination of a fixed 5V output, high current capability, low dropout voltage, and comprehensive protection features make it a reliable choice for a wide range of applications. The enable control feature and low quiescent current further enhance its versatility, making it suitable for both high-power and power-sensitive applications. While newer alternatives may offer additional features, the LP3852ET-5.0 continues to provide a stable and efficient power solution for existing and legacy systems.