Texas Instruments

LP3855ESX-ADJ  

Linear & Switching Voltage Regulators

LP3855ESX-ADJ Description

The LP3855ESX-ADJ is a linear voltage regulator designed by Texas Instruments, featuring an adjustable output voltage and a robust set of performance characteristics. This regulator is designed for applications requiring a high level of precision and reliability, making it ideal for a wide range of electronic systems. With a maximum input voltage of 7V and an adjustable output voltage ranging from 1.23V to 6.6V, the LP3855ESX-ADJ offers flexibility in power supply design. It supports a maximum output current of 1.5A, ensuring it can handle demanding load requirements. The regulator also features a low dropout voltage of 0.435V at 1.5A, which enhances efficiency and reduces power loss, especially in low-voltage applications.

LP3855ESX-ADJ Features

• Adjustable Output Voltage: The LP3855ESX-ADJ provides an adjustable output voltage range from 1.23V to 6.6V, offering flexibility to meet various power supply needs.
• High Output Current: Capable of delivering up to 1.5A of output current, this regulator is suitable for applications requiring high power delivery.
• Low Dropout Voltage: With a maximum dropout voltage of 0.435V at 1.5A, the LP3855ESX-ADJ ensures high efficiency and minimal power loss, making it ideal for low-voltage applications.
• Enhanced Protection Features: The regulator includes over-current, over-temperature, and short-circuit protection, ensuring reliable operation and safeguarding against potential faults.
• Enable Control Feature: The enable control feature allows for easy control of the regulator’s operation, providing additional functionality and control over the power supply.
• High PSRR: The regulator offers a high power supply rejection ratio (PSRR) of 73dB to 57dB at 120Hz, ensuring stable output voltage and reduced noise.
• Low Quiescent Current: With a quiescent current of only 3mA, the LP3855ESX-ADJ is designed to minimize power consumption during operation.
• Surface Mount Packaging: The regulator is available in a surface mount package, facilitating easy integration into compact and high-density designs.

LP3855ESX-ADJ Applications

The LP3855ESX-ADJ is well-suited for a variety of applications where precision, reliability, and efficiency are critical. Its adjustable output voltage and high output current make it ideal for:

• Power Supply Design: Ideal for designing power supplies that require adjustable voltage outputs and high current capabilities.
• Consumer Electronics: Suitable for powering devices such as smartphones, tablets, and other portable electronics that demand high efficiency and reliability.
• Industrial Equipment: Can be used in industrial applications where precise voltage regulation and robust protection features are necessary.
• Telecommunications: Ideal for powering communication equipment that requires stable and efficient power delivery.
• Automotive Systems: Suitable for automotive applications where high reliability and protection against over-current and short-circuit conditions are crucial.

Conclusion of LP3855ESX-ADJ

The LP3855ESX-ADJ from Texas Instruments is a versatile and high-performance linear voltage regulator that offers adjustable output voltage, high output current, and low dropout voltage. Its enhanced protection features and low quiescent current make it a reliable choice for a wide range of applications. Despite being marked as obsolete, the LP3855ESX-ADJ remains a valuable component for designers seeking a robust and efficient power supply solution. Its compatibility with surface mount technology ensures easy integration into modern, compact designs.

LP3855ESX-ADJ Documents

Download datasheets and manufacturer documentation for LP3855ESX-ADJ

Datasheets :

LP3855-ADJ      

HTML Datasheet :

LP3855-ADJ