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What is the maximum input voltage of LM317?

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testing lm317t

this IC has 3 pins and a heatsink connected to the middle pin too. this pin is the output voltage. if you look to the ic, the legs towards you, the right one is the input pin. you must see a difference of minimum 1.2V between the two pins, otherwise the IC is faulty.Dec 6, 2005');})();(function(){window.jsl.dh('_inV0YMvTF8H8wAPv94CwBw43','
Specifications
SymbolParameterValue
Vin \u2013 VoutVoltage differential3 \u2013 40
TJOperating junction temperature range0 \u2013 125
IO(MAX)Maximum output current1.5
IL(MIN)Minimum load current3.5 mA typical, 12 mA maximum
4 more rows
');})();(function(){window.jsl.dh('_inV0YMvTF8H8wAPv94CwBw47','
Description. The LM317 is an adjustable voltage linear regulator that can output 1.25 \u2013 37V at up to 1.5A current with an input voltage range of 3 \u2013 40V.

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