This inherent limitation is not always apparent from the product data sheet and must be evaluated during the design phase. The ti data sheet says the limit is 10ma for the lm317. Current limiting, thermal shutdown and soa control description the lm117lm217 lm317 are monolithic integrated circuit in to220, to220fp, to3 and d2pak packages intended for use. Lm317 3terminal adjustable regulator datasheet rev. Lm117, lm317n wide temperature threepin adjustable regulator. Nsc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Lm117, lm317n wide temperature threepin adjustable. Order this document by lm317d lm317 threeterminal adjustable output positive voltage regulator the lm317 is an adjustable 3terminal positive voltage regulator capable threeterminal of supplying in excess of 1. Lm117lm317alm317 lm117 317at lm 317 t and application sheet 317aemp a04a ic 317t pin diagram 317ah 317t voltage regulator lm317 317k 317 regulators. It was designed by robert bob pease, who also worked for national semiconductor.
For applications requiring greater output current, see data sheets for lm150 series 3 a, snvs772, and lm8 series 5 a. Lm317t datasheet, lm317t pdf, lm317t data sheet, lm317t manual, lm317t pdf, lm317t, datenblatt, electronics lm317t, alldatasheet, free, datasheet, datasheets, data. Lm117lm317alm317 3terminal adjustable regulator rev. National voltage regulators semiconductor lm117lm217. Application information lm317 r1 240 w iadj r2 adjust ci note a 0. Internal short circuit current limiting protection. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground, which programs the output to 1. So, lets look into how to use this ic as a variable voltage regulator. Pak packages intended for use as positive adjustable voltage regulators. Compare pricing for stmicroelectronics lm317t across 39 distributors and discover alternative parts, cad models, technical specifications, datasheets, and more on octopart. It has many application circuits in its datasheet, but this ic is known for being used as a variable voltage regulator. Lm317 slvs044x september 1997revised september 2016 lm317 3terminal adjustable regulator 1 1 features 1 output voltage range. 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.
Inchange semiconductor isc adjustable voltage regulator lm317 features output voltage range. Lm317 datasheetr1, 120 or 240ohms all about circuits. By providing lowimpedance discharge paths for c o and cadj, respectively, d1 and d2 prevent. Lm317 datasheet, lm317 datasheets, lm317 pdf, lm317 circuit. The lm317 is an adjustable 3terminal positive voltage regulator capable. Device marking information see detailed ordering and shipping information in the package dimensions section on page 10 of this data sheet. An important notice at the end of this data sheet addresses availability, warranty, changes, use in safetycritical applications, intellectual property matters and other important disclaimers. See general marking information in the device marking section on page 10 of this data sheet.
For the negative complement, see lm7 series data sheet. Lm317 datasheet, lm317 pdf, lm317 data sheet, lm317 manual, lm317 pdf, lm317, datenblatt, electronics lm317, alldatasheet, free, datasheet, datasheets, data sheet. Jameco will remove tariff surcharges for online orders on instock items learn more. Ci is not required, but is recommended, particularly if the regulator is not in close proximity to the power supply filter capacitors. Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. The lm317 is a widely used adjustable positive linear voltage regulator. Lm317 datasheet pdf, lm317 data sheet, lm317, lm317. Lm 317 t and application sheet 317aemp a04a ic 317t pin diagram 317ah 317t voltage regulator lm317 317k 317 regulators. Texas instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Ics included on the chip are current limit thermal overload. The lm317 is a popular adjustable positive linear voltage regulator. Lm117lm317a lm317 march 1, 2010 3terminal adjustable regulator general description the lm117 series of adjustable 3terminal positive voltage regulators is capable of supplying in excess of 1.
Lm317 is an adjustable three terminal positivevoltage regulator. It employs internal current limiting, thermal shutdown and safe area compensation. It requires two external resistors to adjust the output voltage. Lmx17hv high voltage threeterminal adjustable regulator. Lm317t datasheet, lm317t pdf, lm317t data sheet, lm317t manual, lm317t pdf. Short circuit protected output the lm117 and lm317n offer full overload. Lm317m 500 ma adjustable output, positive voltage regulator. Ics included on the chip are current limit thermal overload protection and safe. They are exceptionally easy to use and require only two external resistors to set the output voltage. This monolithic integrated circuit is an adjustable 3terminal positive voltage regulator designed to supply more than 1.
This inherent limitation is not always apparent from the product data sheet. May 8, 2010 the power limitations of the physical packaging for a linear regulator device can limit the total output current or the inputtooutput voltage differential. Lm117 series packages and power capability rated design, device package power load. The nominal output voltage is selected by means of a resistive divider.
The lm317 datasheet specifies that is an adjustable threeterminal positivevoltage regulator capable of supplying more than 1. Lm317 datasheet pdf national semiconductor ti old version datasheet texas instruments. Lm117 series packages and power capability part number rated design suffix package power load dissipation current. Adjustable positive this voltage regulator is exceptionally easy to use and requires only two external resistors to set the ou. Order this document by lm317 d lm317 threeterminal adjustable output positive voltage regulator the lm317 is an adjustable 3terminal positive voltage regulator capable threeterminal of supplying in excess of 1.
Included on the chip are current limit, thermal overload. These devices need only one external componenta compensation capacitor at the output. Lm 317 datasheet, lm 317 pdf, lm 317 data sheet, datasheet, data sheet, pdf home all manufacturers by category part name, description or manufacturer contain. Lm317 resistor and voltage calculator circuit digest. Because the regulator is floating and detects only the inputtooutput differential voltage, supplies of several. The h metal can, j ceramic, and k metal can packages from analog devices are now obsolete the lt117a series are 3terminal positive adjustable voltage regulators which offer improved performance over earlier devices.
Lm117 lm317alm317 3terminal adjustable regulator literature number. Lm317 family options part datasheet temperature description product folder lm317n 0 c to 125 c 40v, 1. Lm317t datasheet, lm317t datasheets, lm317t pdf, lm317t circuit. These effects can be minimized by proper integrated circuit design and layout techniques. Current limiting, thermal shutdown and soa control description the lm117lm217lm317 are monolithic integrated. Stmicroelectronics, alldatasheet, datasheet, datasheet search site for electronic. Lm317 pdf, lm317 description, lm317 datasheets, lm317 view. Ti, alldatasheet, datasheet, datasheet search site for electronic components and. The denotes the specifications which apply over the full operating. The other makers are also on the correct 10 ma spec. Lm317d lm317, ncv317 voltage regulator adjustable output, positive 1. Fairchild must have a problem if theirs is 12 ma because ns invented the part and the correct spec has been 10ma for as long as i can remember.
The lm217, lm317 are monolithic integrated circuits in to220, to220fp and d. Removed information regarding lm317a, formerly part of this data sheet. Absolute maximum ratings supply voltage, function 5 lead to220 1 vcc supply. Lm317 linear integrated circuit 1 3terminal 1a positive adjustable voltage regulator description the contek lm317 is an adjustable 3terminal positive voltage regulator, designed to supply more than 1. Lm 317 datasheet, lm 317 pdf, lm 317 data sheet, datasheet, data sheet, pdf. Lm317d lm317, ncv317 voltage regulator adjustable output, positive. Adjustable voltage regulator, lm317t pdf download inchange semiconductor, lm317t datasheet pdf, pinouts, data sheet, equivalent, schematic, cross reference, obsolete, circuits electronic component search and free download site. The lm317 is an adjustable threeterminal positivevoltage regulator capable of supplying. Lm317lmnopb ic reg positive adj 8soic national semiconductor datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other electronic components such as resistors, capacitors, transistors and diodes. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage.
Lm317t stmicroelectronics datasheet and cad model download. Lm117 lm317alm317 3terminal adjustable regulator general description the lm117 series of adjustable 3terminal positive voltage regulators is capable of supplying in excess of 1. Adjustable voltage regulator, lm317k pdf download inchange semiconductor, lm317k datasheet pdf, pinouts, data sheet, equivalent, schematic, cross reference, obsolete, circuits electronic component search and free download site. The output voltage v out is dependent on external resistor values r 1 and r 2, according to the following equation. All overload protection circuitry remains fully functional even if the adjustment termi. Needed if device is more than 6 inches from filter the end of the data sheet. Pdf is the data sheet for the following electronic components. That is where the 120 ohm resistor value came from since it is across 1. Lm317 is an adjustable voltage regulator which takes an input voltage of 3 40v dc and provides a fixed output voltage of 1. Compare pricing for stmicroelectronics lm317t across 42 distributors and discover alternative parts, cad models, technical specifications, datasheets, and more on octopart. Ci is not required, but is recommended, particularly if the regulator is not in close proximity to the power supply filter.
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