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MIC4043

Part Number	MIC4043
Manufacturer	Micrel Semiconductor
Description	Low-Voltage Secondary-Side Shunt Regulator
Published	Mar 26, 2005
Detailed Description	MIC4043 Low-Voltage, Secondary-Side Shunt Regulator General Description The MIC4043 is a shunt regulator optimized for ...
Datasheet	MIC4043 PDF File

Overview

MIC4043 Low-Voltage, Secondary-Side Shunt Regulator General Description The MIC4043 is a shunt regulator optimized for secondaryside regulation in low-voltage power supplies.
Featuring an output stage guaranteed to swing within 400mV of ground, the MIC4043 can be used in power supplies operating down to 1.
8V, even with opto-isolators requiring greater than 1.
2V of headroom.
In power supply applications, the MIC4043 normally drives the LED of an optically isolated feedback circuit.
The MIC4043 monitors a resistively-divided output voltage and sinks error current through the opto-isolator’s LED (secondary side); the opto-isolator’s transistor (primary side) provides this signal to the control...

Similar Datasheet

MIC4043 Low-Voltage Secondary-Side Shunt Regulator - Micrel Semiconductor

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