LM1117LD-1.8/NOPB

Overview

The LM1117LD-1.8/NOPB is a fixed-output low-dropout linear regulator providing 1.8 V at up to 800 mA. It features a maximum dropout voltage of 1.2 V at full load and operates within a junction temperature range of 0°C to +125°C. The device includes internal current limiting and thermal shutdown protection, ensuring robust operation under overload conditions.

Feature Summary

• Integrated current limiting and thermal shutdown for enhanced reliability
• Low dropout voltage capability for efficient power management
• Zener trimmed bandgap reference ensures precise output voltage accuracy

Applications

• AC drive power stage modules
• Merchant network and server PSU
• Industrial AC/DC systems
• Ultrasound scanners
• Servo drive control modules

Procurement Notes

Verify the specific suffix 'LD' against the manufacturer's official orderable addendum to confirm package availability and exact pinout configuration. Ensure the component meets RoHS compliance requirements as indicated by the NOPB designation before finalizing procurement specifications.

Selection Notes

Select this regulator when a stable 1.8 V supply is required with high current capacity. Verify that the input voltage provides sufficient headroom above the 1.2 V dropout threshold across the entire operating temperature range to maintain regulation under all load conditions.

Part Context

This component belongs to the LM1117 family of 800-mA low-dropout linear regulators manufactured by Texas Instruments. The series offers both adjustable and fixed output options in various packages including SOT-223, TO-220, TO-252, and WSON, designed for general-purpose voltage regulation applications.

Replacement Considerations

The TLV1117 is documented as a newer drop-in alternative. For improved functionality in fixed output SOT-223 configurations, the TLV761 is also listed as a replacement option.