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february 2012 doc id 2154 rev 18 1/25 25 lm117 lm217, lm317 1.2 v to 37 v adjustable voltage regulators features output voltage range: 1.2 to 37 v output current in excess of 1.5 a 0.1 % line and load regulation floating operation for high voltages complete series of protections: current limiting, thermal shutdown and soa control description the lm117, lm217, lm317 are monolithic integrated circuits in to-220, to-220fp, to-3 and d2pak packages intended for use as positive adjustable voltage regulators. they are designed to supply more than 1.5 a of load current with an output voltage adjustable over a 1.2 to 37 v range. the nominal output voltage is selected by means of only a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed regulators. to-220fp d2pak to-220 to-3 table 1. device summary order codes to-220 d2pak (tape and reel) to-220fp to-3 lm117k lm217t lm217t-dg (1) lm217d2t-tr lm217k lm317t LM317T-DG (1) lm317d2t-tr lm317p lm317k 1. to-220 dual gauge frame. www.st.com
contents lm117, lm217, lm317 2/25 doc id 2154 rev 18 contents 1 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
lm117, lm217, lm317 pin configuration doc id 2154 rev 18 3/25 1 pin configuration figure 1. pin connections (top view) to-220fp to-3 to-220 d2pak (any type)
maximum ratings lm117, lm217, lm317 4/25 doc id 2154 rev 18 2 maximum ratings note: absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these condition is not implied. table 2. absolute maximum ratings symbol parameter value unit v i - v o input-reference differential voltage 40 v i o output current internally limited t op operating junction temperature for: lm117 - 55 to 150 c lm217 - 25 to 150 lm317 0 to 125 p d power dissipation internally limited t stg storage temperature - 65 to 150 c table 3. thermal data symbol parameter d2pak to-220 to-220fp to-3 unit r thjc thermal resistance junction-case 3 5 5 4 c/w r thja thermal resistance junction-ambient 62.5 50 60 35 c/w
lm117, lm217, lm317 diagram doc id 2154 rev 18 5/25 3 diagram figure 2. schematic diagram
electrical characteristics lm117, lm217, lm317 6/25 doc id 2154 rev 18 4 electrical characteristics v i - v o = 5 v, i o = 500 ma, i max = 1.5 a and p max = 20 w, t j = - 55 to 150 c for lm117, t j = - 25 to 150 c for lm217, unless otherwise specified. table 4. electrical characteristics for lm117/lm217 symbol parameter test conditions min. typ. max. unit v o line regulation v i - v o = 3 to 40 v t j = 25c 0.01 0.02 %/v 0.02 0.05 v o load regulation v o 5 v i o = 10 ma to i max t j = 25c 5 15 mv 20 50 v o 5 v, i o = 10 ma to i max t j = 25c 0.1 0.3 % 0.3 1 i adj adjustment pin current 50 100 a i adj adjustment pin current v i - v o = 2.5 to 40v i o = 10 ma to i max 0.2 5 a v ref reference voltage (between pin 3 and pin 1) v i - v o = 2.5 to 40v i o = 10 ma to i max p d p max 1.2 1.25 1.3 v v o /v o output voltage temperature stability 1% i o(min) minimum load current v i - v o = 40 v 3.5 5 ma i o(max) maximum load current v i - v o 15 v, p d < p max 1.5 2.2 a v i - v o = 40 v, p d < p max , t j = 25c 0.4 en output noise voltage (percentage of v o ) b = 10hz to 100khz, t j = 25c 0.003 % svr supply voltage rejection (1) t j = 25c, f = 120hz c adj =0 65 db c adj =10f 66 80 1. c adj is connected between pin 1 and ground.
lm117, lm217, lm317 electrical characteristics doc id 2154 rev 18 7/25 v i - v o = 5 v, i o = 500 ma, i max = 1.5 a and p max = 20 w, t j = 0 to 125c, unless otherwise specified. table 5. electrical characteristics for lm317 symbol parameter test conditions min. typ. max. unit v o line regulation v i - v o = 3 to 40 v t j = 25c 0.01 0.04 %/v 0.02 0.07 v o load regulation v o 5 v i o = 10 ma to i max t j = 25c 5 25 mv 20 70 v o 5 v, i o = 10 ma to i max t j = 25c 0.1 0.5 % 0.3 1.5 i adj adjustment pin current 50 100 a i adj adjustment pin current v i - v o = 2.5 to 40v, i o = 10 ma to 500ma 0.2 5 a v ref reference voltage (between pin 3 and pin 1) v i - v o = 2.5 to 40v i o = 10 ma to 500ma p d p max 1.2 1.25 1.3 v v o /v o output voltage temperature stability 1% i o(min) minimum load current v i - v o = 40 v 3.5 10 ma i o(max) maximum load current v i - v o 15 v, p d < p max 1.5 2.2 a v i - v o = 40 v, p d < p max , t j = 25c 0.4 en output noise voltage (percentage of v o ) b = 10hz to 100khz, t j = 25c 0.003 % svr supply voltage rejection (1) t j = 25c, f = 120hz c adj =0 65 db c adj =10f 66 80 1. c adj is connected between pin 1 and ground.
typical characteristics lm117, lm217, lm317 8/25 doc id 2154 rev 18 5 typical characteristics figure 3. output current vs. input-output differential voltage figure 4. dropout voltage vs. junction temperature figure 5. reference voltage vs. junction figure 6. basic adjustable regulator
lm117, lm217, lm317 application information doc id 2154 rev 18 9/25 6 application information the lm117, lm217, lm317 provides an internal reference voltage of 1.25 v between the output and adjustments terminals. this is used to set a constant current flow across an external resistor divider (see figure 3 ), giving an output voltage v o of: v o = v ref (1 + r 2 /r 1 ) + i adj r 2 the device was designed to minimize the term i adj (100 a max) and to maintain it very constant with line and load changes. usually, the error term i adj r 2 can be neglected. to obtain the previous requirement, all the regulator quiescent current is returned to the output terminal, imposing a minimum load current condition. if the load is insufficient, the output voltage will rise. since the lm117, lm217, lm317 is a floating regulator and "sees" only the input-to-output differential voltage, supplies of very high voltage with respect to ground can be regulated as long as the maximum input-to-output differential is not exceeded. furthermore, programmable regulator are easily obtainable and, by connecting a fixed resistor between the adjustment and output, the device can be used as a precision current regulator. in order to optimize the load regulation, the current set resistor r 1 (see figure 3 ) should be tied as close as possible to the regulator, while the ground terminal of r 2 should be near the ground of the load to provide remote ground sensing. performance may be improved with added capacitance as follow: an input bypass capacitor of 0.1 f an adjustment terminal to ground 10 f capacitor to improve the ripple rejection of about 15 db (cadj). an 1 f tantalum (or 25 f aluminium electrolytic) capacitor on the output to improve transient response. in additional to external capacitors, it is good practice to add protection diodes, as shown in figure 4 d1 protect the device against input short circuit, while d2 protect against output short circuit for capacitance discharging. note: d1 protect the device against input short circuit, while d2 protects against output short circuit for capacitors discharging. figure 7. voltage regulator with protection diodes
application information lm117, lm217, lm317 10/25 doc id 2154 rev 18 i o = (v ref / r 1 ) + i adj = 1.25 v / r 1 figure 8. slow turn-on 15 v regulator figure 9. current regulator figure 10. 5 v electronic shut-down regulator
lm117, lm217, lm317 application information doc id 2154 rev 18 11/25 (r 2 sets maximum v o ) * r s sets output impedance of charger z o = r s (1 + r 2 /r 1 ). use of r s allows low charging rates whit fully charged battery. figure 11. digitally selected outputs figure 12. battery charger (12 v)
application information lm117, lm217, lm317 12/25 doc id 2154 rev 18 * r3 sets peak current (0.6 a for 1 0). ** c1 recommended to filter out input transients. figure 13. current limited 6 v charger
lm117, lm217, lm317 package mechanical data doc id 2154 rev 18 13/25 7 package mechanical data in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack ? is an st trademark. table 6. to-220 mechanical data dim. type std - st dual gauge type std - st single gauge mm. mm. min. typ. max. min. typ. max. a 4.40 4.60 4.40 4.60 b 0.61 0.88 0.61 0.88 b1 1.14 1.70 1.14 1.70 c 0.48 0.70 0.48 0.70 d 15.25 15.75 15.25 15.75 d1 1.27 e 10.00 10.40 10.00 10.40 e 2.40 2.70 2.40 2.70 e1 4.95 5.15 4.95 5.15 f 1.23 1.32 0.51 0.60 h1 6.20 6.60 6.20 6.60 j1 2.40 2.72 2.40 2.72 l 13.00 14.00 13.00 14.00 l1 3.50 3.93 3.50 3.93 l20 16.40 16.40 l30 28.90 28.90 ? p 3.75 3.85 3.75 3.85 q 2.65 2.95 2.65 2.95
package mechanical data lm117, lm217, lm317 14/25 doc id 2154 rev 18 note: 1 max resin gate protrusion: 0.5 mm. 2 resin gate position is accepted in each of the two positions shown on the drawing, or their symmetrical. figure 14. drawing dimension to-220 (type std-st dual gauge) 0015988/a
lm117, lm217, lm317 package mechanical data doc id 2154 rev 18 15/25 note: in spite of some difference in tolerances, the packages are compatible. figure 15. drawing dimension to-220 (type std-st single gauge) 8174627_b
package mechanical data lm117, lm217, lm317 16/25 doc id 2154 rev 18 figure 16. drawing dimension tube for to-220 dual gauge (mm.) figure 17. drawing dimension tube for to-220 single gauge (mm.)
lm117, lm217, lm317 package mechanical data doc id 2154 rev 18 17/25 dim. mm. inch. min. typ. max. min. typ. max. a 11. 8 5 0.466 b0. 9 6 1.05 1.10 0.0 3 7 0.041 0.04 3 c 1.70 0.066 d 8 .7 0. 3 42 e 20.0 0.7 8 7 g 10. 9 0.42 9 n 16. 9 0.665 p 26.2 1.0 3 1 r 3 . 88 4.0 9 0.152 0.161 u 39 .5 1.555 v 3 0.10 1.1 8 5 to- 3 mechanical data p00 3 c/c e b r c d a p g n v u o
package mechanical data lm117, lm217, lm317 18/25 doc id 2154 rev 18 dim. mm. inch. min. typ max. min. typ. max. a 4.40 4.60 0.17 3 0.1 8 1 b 2.5 2.7 0.0 98 0.106 d 2.5 2.75 0.0 98 0.10 8 e 0.45 0.70 0.017 0.027 f 0.75 1 0.0 3 00.0 39 f1 1.15 1.50 0.045 0.05 9 f2 1.15 1.50 0.045 0.05 9 g4. 9 5 5.2 0.1 9 4 0.204 g1 2.4 2.7 0.0 9 4 0.106 h 10.0 10.40 0. 393 0.40 9 l2 16 0.6 3 0 l 3 2 8 .6 3 0.6 1.126 1.204 l4 9 . 8 10.6 0. 38 50.417 l5 2. 93 .6 0.114 0.142 l6 15. 9 16.4 0.626 0.645 l7 99 . 3 0. 3 54 0. 3 66 dia. 33 .2 0.11 8 0.126 to-220fp mechanical data 7012510a- h
lm117, lm217, lm317 package mechanical data doc id 2154 rev 18 19/25 figure 18. drawing dimension d2pak (type std-st) 0079457/l
package mechanical data lm117, lm217, lm317 20/25 doc id 2154 rev 18 figure 19. drawing dimension d2 pak (type wooseok-subcon.) 0079457/l
lm117, lm217, lm317 package mechanical data doc id 2154 rev 18 21/25 note: the d2pak package coming from the subcontractor wooseok is fully compatible with the st's package suggested footprint. table 7. d2pak mechanical data dim. type std-st type wooseok-subcon. mm. mm. min. typ. max. min. typ. max. a 4.40 4.60 4.30 4.70 a1 0.03 0.23 0 0.20 b 0.70 0.93 0.70 0.90 b2 1.14 1.70 1.17 1.37 c 0.45 0.60 0.45 0.50 0.60 c2 1.23 1.36 1.25 1.30 1.40 d 8.95 9.35 9 9.20 9.40 d1 7.50 7.50 e 10 10.40 9.80 10.20 e1 8.50 7.50 e2.54 2.54 e1 4.88 5.28 5.08 h 15 15.85 15 15.30 15.60 j1 2.49 2.69 2.20 2.60 l 2.29 2.79 1.79 2.79 l1 1.27 1.40 1 1.40 l2 1.30 1.75 1.20 1.60 r0.4 0.30 v2 0 8 0 3
package mechanical data lm117, lm217, lm317 22/25 doc id 2154 rev 18 figure 20. d2pak footprint recommended data table 8. footprint data values dim. mm. inch. a 12.20 0.480 b 9.75 0.384 c 16.90 0.665 d 3.50 0.138 e 1.60 0.063 f 2.54 0.100 g 5.08 0.200
lm117, lm217, lm317 package mechanical data doc id 2154 rev 18 23/25 dim. mm. inch. min. typ. max. min. typ. max. a1 8 0 7.0 8 6 c 12. 8 1 3 .0 1 3 .2 0.504 0.512 0.51 9 d 20.2 0.7 9 5 n60 2. 3 62 t 14.4 0.567 ao 10.50 10.6 10.70 0.41 3 0.417 0.421 bo 15.70 15. 8 0 15. 9 0 0.61 8 0.622 0.626 ko 4. 8 04. 9 0 5.00 0.1 89 0.1 93 0.1 9 7 po 3 . 9 4.0 4.1 0.15 3 0.157 0.161 p 11. 9 12.0 12.1 0.46 8 0.472 0.476 tape & reel d 2 pak-p 2 pak-d 2 pak/a-p 2 pak/a mechanical data
revision history lm117, lm217, lm317 24/25 doc id 2154 rev 18 8 revision history table 9. document revision history date revision changes 01-sep-2004 10 mistake v ref ==> v o , tables 1, 4 and 5. 19-jan-2007 11 d2pak mechanical data has been updated, add footprint data and the document has been reformatted. 13-jun-2007 12 change values i adj and v ref test condition of i o = 10 ma to i max ==> i o = 10 ma to 500 ma on ta bl e 5 . 23-nov-2007 13 added ta bl e 1 . 06-feb-2008 14 added: to-220 mechanical data figure 14 on page 14 and ta b l e 6 o n page 13 . 02-mar-2010 15 added: notes figure 14 on page 14 , figure 15 on page 15 , figure 16 and figure 17 on page 16 . 17-nov-2010 16 modified: r thjc value for to-220 table 3 on page 4 . 18-nov-2011 17 added: order code LM317T-DG table 1 on page 1 . 13-feb-2012 18 added: order code lm217t-dg table 1 on page 1 .
lm117, lm217, lm317 doc id 2154 rev 18 25/25 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a particular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by two authorized st representatives, st products are not recommended, authorized or warranted for use in military, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or register ed trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2012 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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