单片机产品特性与解密

generaldescription

·availablein8v,5v,85v,3v,5v,andadjustableversions

thelm1117isaseriesoflowdropoutvoltageregulatorswithadropoutof2vat800maofloadcurrent.ithasthesamepin-outasnationalsemiconductor’sindustrystandardlm31thelm1117isavailableinanadjustableversion,whichcansettheoutputvoltagefrom25vto18vwithonlytwoexternalresistors.inaddition,itisalsoavailableinfivefixedvoltages,8v,5v,85v,3v,and5v.thelm1117offerscurrentlimitingandthermalshutdown.itscircuitincludesazenertrimmedbandgapreferencetoassureoutputvoltageaccuracytowithin±1%.thelm1117seriesisavailableinllp,to-263,sot-223,to-220,andto-252d-pakpackages.aminimumofμftantalumcapacitorisrequiredattheoutputtoimprovethetransientresponseandstability.

·spacesavingsot-223andllppackages

·outputcurrent800ma

·loadregulation0.4%(max)

·temperaturerange

—lm11170°cto125°c

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