Lm317 datasheet pdf, lm317 data sheet, lm317, lm317. The lm317 lm338 lm350 family of adjustable 3terminal positive voltage regulators can take a input of 3 to 40 volts dc and provide a regulated voltage over a 1. Jameco sells voltage regulator lm317 and more with a lifetime guarantee and same day shipping. Typical applications continuedhigh current adjustable regulator00906312optional improves ripple rejectionsolid tantalumminimum load current 30 ma0 to 30v regulator009063full output current not available at high inputoutput voltagespower follower datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and. Lm317 slvs044x september 1997revised september 2016 lm317 3terminal adjustable regulator 1 1 features 1 output voltage range adjustable. Lm117lm317alm317n 3terminal adjustable regulator pdf. It was designed by robert c dobkin in 1976 while he worked at national semiconductor the lm337 is the negative complement to the lm317, which regulates voltages below a reference. This device can also be used to make a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the lm317 can be used as a precision current regulator. Lm317 lm338 lm350 voltage regulator calculator and.
The lm217, lm317 are monolithic integrated circuits in to220, to220fp and d. Lm317l 3terminal adjustable regulator general description the lm317l is an adjustable 3terminal positive voltage regulator capable of supplying 100ma over a 1. Lm150 lm350 3 amp 3terminal adjustable regulator datasheet pdf 400kb may 1998 national semiconductor lm317 lm338 lm350 current regulator circuits the following circuits show some of the basic uses of the lm317 lm338 lm350 series of voltage regulators when configured as a current regulator or constant current source ccs. Pak packages intended for use as positive adjustable voltage regulators. Lm317 datasheet, lm317 pdf, lm317 data sheet, datasheet, data sheet, pdf. Second of all, comparing two low dropout linear regulators load current, lm1117 output lower current than lm3940. Lm337 este complementul negativ al lm317, care regleaza tensiunile sub o referin. A few useful application circuits using ic lm317, collected from national semiconductors pdf datasheet are meticulously explained in this section with the help.
Nsc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. National semiconductor voltage regulator handbook 1980 national semiconductor corporation 1980 acrobat 7 pdf 14. The lm337 is the negative complement to the lm317, which regulates voltages below a reference. It was designed by robert c dobkin in 1976 while he worked at national semiconductor. It was designed by robert bob pease, who also worked for national semiconductor. Further, both line and load regulation are better than.
All structured data from the file and property namespaces is available under the creative commons cc0 license. For more information about traditional and new thermal metrics, see the semiconductor and ic package thermal metrics application report. Pdf lm317l 100ma lm317 8pin smd constant current led driver lm317 smd code 3k lm317l national smd transistor marking 1f 4 to 20ma current source lm317 lm317 voltage regulator as current source lm317 smd transistor smd marking code d2. Lm317 pdf, lm317 description, lm317 datasheets, lm317 view. Files are available under licenses specified on their description page. Lm317 lm338 lm350 current regulator calculator and. Application note 181 3terminal regulator is adjustable. Because the regulator is floating and detects only the inputtooutput differential voltage, supplies of several hundred volts can be regulated as long as the maximum inputtooutput differential is not exceeded. Application hintsin operation, the lm117 develops a nominal 1. It is exceptionally easy to use and requires only two external resistors to set the output voltage. Lm337 is a negative supplement to lm317 which regulates voltages below the reference level the lm317 datasheet specifies an adjustable threeterminal positive voltage regulator capable of supplying more than 1. The content and s of the attached material are the property of its owner. Application note 181 3terminal regulator is adjustable intranet. Lm2941lm2941c 1a low dropout adjustable regulator general description the lm2941 positive voltage regulator features the ability to source 1a of output current with a typical dropout voltage of 0.
National semiconductor datasheet pdf catalog first page. Operation of the lm317 down to 0v output requires the addition of a negative supply so that the. All the circuits discussed below require an unregulated input voltage max. Lm117lm317alm317 3terminal adjustable regulator generaldescription the lm117 series of adjustable 3terminal positive voltage regulators is capable of supplying in excess of 15a over a 12v to 37v output range they are exceptionally easy to use and require only two external resistors to set the output.
National semiconductor application note 181 october 1975 3terminal regulator is adjustable an181. Some assorted useful lm317 application circuits from national semiconductor pdf datasheet has been discretely explained in this chapter through the relevant circuit illustrations. If militaryaerospace specified devices are required, please contact the national semiconductor sales office. Application circuits using lm317 from national semiconductor. National semiconductor catalog first page, datasheet, datasheet search, data sheet, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits. Lm117lm317alm317 3terminal adjustable regulator generaldescription the lm117 series of adjustable 3terminal positive voltage regulators is capable of supplying in excess of 15a over a 12v to 37v output range they are exceptionally easy to use and require only two external resistors to. National semiconductor voltage regulator handbook 1980. Lm317 bandgap voltage reference example brief explanation of the temperatureindependent bandgap reference circuit within the lm317. Lm117, lm317n wide temperature threepin adjustable. The highlighted portion, which is duplicated in figure 1b, provides the temperaturecompensated 1. Lm317 figure 1a is a highlighted version of the schematic in the datasheet of the lm317 from national semiconductor. Lm117 lm317 lm317a datasheet lookup data sheet national semiconductor. Nsc 3terminal adjustable regulator,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors.
The lm317 is a widely used adjustable positive linear voltage regulator. A few useful application circuits using ic lm317, collected from national semiconductors pdf datasheet are meticulously explained in this section with the help of the relevant circuit diagrams. The rest of the circuit implements the other features of the regulator. The lm317 serves a wide variety of applications including local, on card regulation. Lm317 datasheet pdf national semiconductor ti old version datasheet texas instruments. The lm317 is a popular adjustable positive linear voltage regulator.
Lm317 datasheet, lm317 datasheets, lm317 pdf, lm317 circuit. It was designed by robert bob pease, who also worked for national semiconductor specifications. National semiconductor data sheets datasheet pdf sheet free from view. By connecting a fixed resistor between the adjustment pin and output, the lm117 and lm317 n.
Lm117 lm317 lm317a datasheet lookup data sheet national. Lm317 datasheetpdf 8 page national semiconductor ti. The ic lm317 promises countless interesting and useful power enhancement circuits, applicable in numerous fields where well dimensioned power supplies become crucially important. Onsemi, alldatasheet, datasheet, datasheet search site for. Lm317 datasheet, cross reference, circuit and application notes in pdf format.
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