Texas Instruments

LM1086IS-1.8

LM1086IS-1.8 Description

The LM1086IS-1.8 is a linear voltage regulator designed by Texas Instruments, offering a fixed output voltage of 1.8V with a maximum output current of 1.5A. This regulator is housed in a surface-mount DDPAK package, making it suitable for compact and high-density PCB designs. The LM1086IS-1.8 is capable of operating with an input voltage range up to 27V, ensuring broad compatibility with various power sources. It features a dropout voltage of 1.5V at full load, which is relatively high but ensures stable regulation under heavy load conditions. The regulator also includes essential protection features such as over-current, over-temperature, and short-circuit protection, enhancing its reliability and robustness in diverse applications.

LM1086IS-1.8 Features

• Output Type: Fixed, providing a stable 1.8V output.
• Input Voltage Range: Up to 27V, offering flexibility in power supply options.
• Output Current: Capable of delivering up to 1.5A, suitable for moderate to high current applications.
• Dropout Voltage: 1.5V at 1.5A, ensuring regulation even at higher load currents.
• Protection Features: Over-current, over-temperature, and short-circuit protection safeguard the regulator and connected circuits.
• Mounting Type: Surface mount, ideal for space-constrained designs.
• Package: DDPAK, providing a robust and thermally efficient solution.
• Moisture Sensitivity Level (MSL): Level 3 (168 hours), suitable for standard manufacturing processes.
• Power Supply Rejection Ratio (PSRR): 72dB at 120Hz, ensuring minimal noise and ripple in the output voltage.
• Quiescent Current: 5mA, contributing to low power consumption in standby mode.

LM1086IS-1.8 Applications

The LM1086IS-1.8 is well-suited for a variety of applications requiring a stable 1.8V supply. Its ability to deliver up to 1.5A makes it ideal for powering microcontrollers, digital signal processors (DSPs), and other low-voltage digital circuits. The regulator's protection features and robust design make it suitable for industrial and automotive applications where reliability and durability are paramount. Additionally, its compact DDPAK package and surface-mount configuration are advantageous for modern, space-efficient PCB designs.

Conclusion of LM1086IS-1.8

The LM1086IS-1.8 is a reliable and efficient linear voltage regulator from Texas Instruments, designed to provide a stable 1.8V output with a maximum current of 1.5A. Its features, including over-current, over-temperature, and short-circuit protection, ensure robust performance in various applications. The regulator's surface-mount DDPAK package and moisture sensitivity level of 3 make it suitable for modern manufacturing processes. While the product is now obsolete, its technical specifications and performance benefits continue to make it a valuable component for legacy designs and specific applications requiring a fixed 1.8V output.