LM3411AM5-5.0

Overview

The LM3411AM5-5.0 is a precision secondary side post regulator and driver manufactured by Texas Instruments. It integrates a voltage reference, error amplifier, and gate driver to control synchronous rectification in isolated power supplies. The device provides a fixed 5.0 V output reference for regulation feedback. It operates within an industrial temperature range of -40°C to +85°C. The component utilizes a 5-pin SOT-23 (AM5) surface-mount package.

Feature Summary

• Integrates precision secondary side regulation with synchronous rectifier drive capabilities
• Includes internal voltage reference and error amplifier for accurate output control
• Designed specifically for post-regulation in isolated DC/DC converter topologies

Applications

• Secondary side synchronous rectification in flyback converters
• Post-regulation stages in isolated power supply designs
• Precision voltage regulation for auxiliary windings

Procurement Notes

Verify the specific AM5 package variant and 5.0V reference configuration against the official Texas Instruments datasheet. Confirm that the component meets all required thermal and electrical specifications for the target application before procurement.

Selection Notes

Select this component when precise secondary side regulation is required in isolated topologies. Ensure the design supports the integration of an internal error amplifier and gate driver for synchronous rectification control.

Part Context

This part belongs to the LM3411 family of precision secondary regulators. These devices are engineered to improve efficiency in isolated power supplies by replacing diode-based rectification with active synchronous control managed by the integrated driver circuitry.

Replacement Considerations

Compatible substitutes include the LM3411-L and other variants from the LM3411 series such as the LM3411AM5-3.3, provided the voltage reference requirement matches the application needs.