LM3411M5X-3.3/NOPB

Overview

The LM3411M5X-3.3/NOPB is a precision secondary regulator and driver IC manufactured by Texas Instruments, formerly National Semiconductor. It functions as a shunt voltage reference with a fixed output voltage of 3.3 V. The device offers a tolerance of ±1% and supports an output current of 15 mA. Key electrical characteristics include a maximum static current of 85.0 µA. It is housed in a compact SOT-23-5 package, designed for applications requiring stable voltage regulation and precise reference levels in power management circuits.

Feature Summary

• Precision secondary regulation capability for stable voltage control
• Fixed 3.3 V output reference with high accuracy
• Low quiescent current consumption for efficiency
• Compact surface-mount packaging for space-constrained designs

Applications

• Precision voltage reference sources in analog circuits
• Secondary regulation stages in power supply systems
• Biasing networks requiring stable 3.3 V references
• Portable electronic devices with low power constraints

Procurement Notes

Verify the manufacturer designation, as Texas Instruments acquired National Semiconductor. Confirm the specific suffix 'NOPB' indicates lead-free compliance if required. Ensure the SOT-23-5 package matches your PCB footprint. Cross-reference the part number with official TI documentation to confirm the fixed 3.3 V output and ±1% tolerance specifications before procurement.

Selection Notes

Select this component when a fixed 3.3 V precision reference is needed with low static current. The ±1% tolerance suits applications demanding higher accuracy than standard zener diodes. The SOT-23-5 package is ideal for space-limited designs. Consider the 15 mA output current limit to ensure it meets the load requirements of your specific circuit topology without exceeding thermal limits.

Part Context

This part belongs to the LM3411 family of precision secondary regulators. These devices are designed to provide accurate voltage references and drive loads in power management applications. The LM3411 series typically includes various output voltage options and tolerances, catering to diverse system requirements while maintaining low power consumption and high stability across temperature ranges.

Replacement Considerations

Check for direct equivalents such as the LM3411M5X-5.0/NOPB for different voltage needs. Verify pin compatibility and package dimensions against alternative shunt regulators from other manufacturers. Ensure replacement parts meet the same ±1% tolerance and 15 mA output current specifications to maintain circuit performance.