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LM3411

National Semiconductor
Part Number LM3411
Manufacturer National Semiconductor
Description Precision Secondary Regulator/Driver
Published Mar 22, 2005
Detailed Description LM3411 Precision Secondary Regulator/Driver December 1999 LM3411 Precision Secondary Regulator/Driver General Descript...
Datasheet PDF File LM3411 PDF File

LM3411
LM3411


Overview
LM3411 Precision Secondary Regulator/Driver December 1999 LM3411 Precision Secondary Regulator/Driver 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 compensated 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).
The amplifier’s inverting input is externally accessible for loop frequency ...



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