Texas Instruments

LP3856ESX-5.0

LP3856ESX-5.0 Description

The LP3856ESX-5.0 is a linear regulator designed by Texas Instruments, offering a fixed output voltage of 5V and a maximum output current of 3A. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a surface-mount DDPAK/TO263-5 package. Despite being marked as obsolete, the LP3856ESX-5.0 remains a reliable choice for applications requiring a stable power supply with a maximum input voltage of 7V. It features a low dropout voltage of 0.6V at 3A, ensuring efficient operation even under heavy load conditions. The regulator includes essential protection features such as over-current, over-temperature, and short-circuit protection, enhancing its robustness and reliability.

LP3856ESX-5.0 Features

• Output Type: Fixed at 5V, providing a stable power supply for various electronic devices.
• Input Voltage Range: Up to 7V, allowing flexibility in power source selection.
• Output Current: Capable of delivering up to 3A, suitable for high-current applications.
• Low Dropout Voltage: 0.6V at 3A, ensuring high efficiency even at high load currents.
• Protection Features: Over-current, over-temperature, and short-circuit protection safeguard the device and connected circuits.
• Enable Control: Provides control over the regulator's operation, enabling power-saving modes.
• Moisture Sensitivity Level: MSL 3 (168 Hours), suitable for manufacturing processes requiring moisture protection.
• Mounting Type: Surface Mount, ideal for compact and high-density PCB designs.
• Package: Tape & Reel (TR), facilitating automated assembly processes.
• Regulator Count: Single regulator, simplifying design and reducing component count.
• Output Configuration: Positive, ensuring compatibility with a wide range of electronic systems.
• Supply Current: Maximum of 10 mA, minimizing power consumption.
• Quiescent Current: 4 mA, contributing to overall system efficiency.
• Power Supply Rejection Ratio (PSRR): 73dB to 57dB at 120Hz, ensuring high performance in noisy environments.

LP3856ESX-5.0 Applications

The LP3856ESX-5.0 is ideal for applications requiring a stable 5V supply with high current capability. Its low dropout voltage and robust protection features make it suitable for a variety of electronic systems, including:

• Consumer Electronics: Powering devices such as smartphones, tablets, and portable gaming consoles.
• Industrial Equipment: Providing reliable power for control systems, sensors, and actuators.
• Telecommunications: Ensuring stable power supply for base stations and network equipment.
• Automotive Electronics: Suitable for in-vehicle systems, infotainment, and electronic control units (ECUs).
• Medical Devices: Powering diagnostic equipment, monitoring devices, and portable medical instruments.

Conclusion of LP3856ESX-5.0

The LP3856ESX-5.0 from Texas Instruments is a versatile linear regulator designed for high-current applications requiring a stable 5V supply. Its low dropout voltage and comprehensive protection features make it a reliable choice for a wide range of electronic systems. Despite being marked as obsolete, its robust design and performance characteristics continue to make it a valuable component for engineers and designers. The LP3856ESX-5.0's surface-mount package and enable control feature further enhance its suitability for modern, compact PCB designs.