LM1086ILD-3.3/NOPB

Overview

The LM1086ILD-3.3/NOPB is a fixed positive low-dropout linear regulator manufactured by Texas Instruments, delivering a stable 3.3V output with a maximum current capacity of 1.5A. Designed for surface-mount applications, it utilizes an LLP-8 package to facilitate compact circuit board layouts. The device supports a maximum input voltage of 27V and operates reliably within an extended temperature range from -40°C to +125°C. It features a typical dropout voltage of 1.5V at full load, ensuring efficient regulation even when the input-to-output differential is minimal.

Feature Summary

• Provides a fixed 3.3V positive output voltage suitable for standard logic levels
• Delivers up to 1.5A continuous output current for moderate power loads
• Operates with a low dropout voltage to maintain regulation under varying input conditions
• Supports wide input voltage ranges up to 27V for flexible power supply designs

Applications

• Battery-powered portable electronic devices requiring efficient voltage regulation
• Embedded systems and microcontroller power supplies needing stable 3.3V rails
• General-purpose low-dropout regulation in consumer electronics
• Industrial control modules operating within extended temperature environments

Procurement Notes

Verify that the specific LLP-8 package variant matches your PCB footprint requirements, as pin configurations can vary across different manufacturer revisions. Confirm that the thermal performance of the LLP-8 package is adequate for your application's power dissipation needs, as heat dissipation characteristics differ significantly from through-hole or larger surface-mount packages. Ensure compatibility with RoHS and REACH compliance standards required for your region.

Selection Notes

Select this component when a fixed 3.3V output is required with high current capability in a small surface-mount form factor. Consider the thermal resistance of the LLP-8 package compared to TO-263 or TO-220 alternatives if higher power dissipation is expected. Evaluate the input voltage range against your source supply to ensure it remains within the 27V maximum limit while maintaining sufficient headroom for the dropout voltage.

Part Context

This part belongs to the LM1086 family of 1.5A low-dropout positive regulators, which includes various output voltages and package options such as TO-220, TO-263, and WSON. The LM1086 series is widely used in power management applications where efficiency and size are critical. The NOPB suffix indicates a lead-free and environmentally friendly product compliant with global environmental standards.

Replacement Considerations

• LM1086IS-3.3/NOPB
• LM1086CSX-3.3/NOPB

FAQ

What is the maximum input voltage for the LM1086ILD-3.3/NOPB?

The maximum absolute input voltage rating is 27V.

Does the LM1086ILD-3.3/NOPB support adjustable output voltage?

No, this specific part number provides a fixed 3.3V output. Adjustable versions exist within the LM1086 family but have different suffixes.

What is the operating temperature range for this regulator?

The device is rated for operation from -40°C to +125°C.