LM1085IS-12/NOPB

Overview

The LM1085IS-12/NOPB is a 3A low dropout positive linear regulator from Texas Instruments. It provides a fixed 12V output with a maximum input voltage of 29V and operates within a junction temperature range of -40°C to 125°C. The device features internal current limiting and thermal shutdown protection, housed in a surface-mount TO-263 (D2PAK) package.

Feature Summary

• Integrated overcurrent and thermal overload protection mechanisms
• Fixed 12V output voltage configuration
• Surface-mount D2PAK package design

Applications

• Point-of-load regulation for digital logic circuits
• Power supply conditioning for embedded systems
• Biasing stages in communication equipment

Procurement Notes

Verify the exact suffix against the manufacturer's latest datasheet to confirm RoHS compliance and pinout compatibility. Ensure the ordering part number matches the specific tape-and-reel or tube packaging requirements for your assembly line. Cross-reference the date code to ensure availability of fresh stock.

Selection Notes

Select this component when a stable 12V rail is required at currents up to 3A. Consider the thermal resistance of the D2PAK package and implement adequate PCB copper area for heat dissipation. Verify that the input voltage remains within the 29V absolute maximum rating under all operating conditions.

Part Context

This device belongs to the LM1085 family of 3A low-dropout regulators. It shares functional similarities with other members like the LM1085IT-12/NOPB but differs in package type. The IS variant specifically denotes the surface-mount D2PAK form factor used in high-current applications.

Replacement Considerations

LM1085IT-12/NOPB