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LM3411 Datasheet Precision Secondary Regulator/driver

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM3411 Precision Secondary Regulator/Driver December 1999 LM3411 Precision Secondary.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The LM3411 is a low power fixed-voltage (3.3V or 5.0V) precision shunt regulator designed specifically for driving an optoisolator to provide feedback isolation in a switching regulator.

The LM3411 circuitry includes an internally pensated op amp, a bandgap reference, NPN output transistor, and voltage setting resistors.

A trimmed precision bandgap reference with temperature drift curvature correction, provides a guaranteed 1% precision over the operating temperature range (A grade version).

Key Features

  • n Fixed voltages of 3.3V and 5.0V with initial tolerance of ± 1% for standard grade and ± 0.5% for A grade n Custom voltages available (3V.
  • 17V) n Wide output current range, 20 µA.
  • 15 mA n Low temperature coefficient n Available in 5-lead SOT23-5 surface mount package (tape and reel).

LM3411 Distributor