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march 2010 doc id 2572 rev 28 1/42 42 ld1117xx adjustable and fixed low drop positive voltage regulator features low dropout voltage (1 v typ.) 2.85 v device performances are suitable for scsi-2 active termination output current up to 800 ma fixed output voltage of: 1.2 v, 1.8 v, 2.5 v, 3.0 v, 3.3 v, 5.0 v adjustable version availability (v ref = 1.25 v) internal current and thermal limit available in 1% (at 25 c) and 2% in full temperature range supply voltage rejection: 75 db (typ.) description the ld1117 is a low drop voltage regulator able to provide up to 800 ma of output current, available even in adjustable version (v ref = 1.25 v). concerning fixed versions, are offered the following output voltages: 1.2 v, 1.8 v, 2.5 v, 2.85 v, 3.0 v, 3.3 v and 5.0 v. the 2.85 v type is ideal for scsi-2 lines active te rmination. the device is supplied in: sot-223, dpak, so-8 and to-220. the sot-223 and dpak surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. high efficiency is assured by npn pass transistor. in fact in this case, unlike than pnp one, the quiescent current flows mostly into the load. only a very common 10 f minimum capacitor is needed for stability. on ch ip trimming allows the regulator to reach a very tight output voltage tolerance, within 1% at 25c. the adjustable ld1117 is pin to pin compatible with the other standard. adjustable voltage regulators maintaining the better performances in terms of drop and tolerance. dpak so-8 to-220 sot-223 table 1. device summary part numbers ld1117xx12 ld1117xx25c ld1117xx50c ld1117xx12c ld1117xx30 ld1117xx ld1117xx18 ld1117xx33 ld1117xxc ld1117xx18c ld1117xx33c ld1117xx25 ld1117xx50 www.st.com
contents ld1117xx 2/42 doc id 2572 rev 28 contents 1 diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 7 ld1117 adjustable: application note . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 8 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 9 order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 10 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
ld1117xx list of tables doc id 2572 rev 28 3/42 list of tables table 1. device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 table 2. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 3. thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 4. electrical characteristics of ld1117#12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 table 5. electrical characteristics of ld1117#18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 table 6. electrical characteristics of ld1117#25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 table 7. electrical characteristics of ld1117#30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 table 8. electrical characteristics of ld1117#33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 table 9. electrical characteristics of ld1117#50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 table 10. electrical characteristics of ld1117 (adjustable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 11. electrical characteristics of ld1117#12c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 table 12. electrical characteristics of ld1117#18c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 table 13. electrical characteristics of ld1117#25c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 table 14. electrical characteristics of ld1117#33c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 table 15. electrical characteristics of ld1117#50c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 table 16. electrical characteristics of ld1117c (adjustable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 table 17. to-220 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 table 18. dpak mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 table 19. footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 table 20. order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 table 21. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
list of figures ld1117xx 4/42 doc id 2572 rev 28 list of figures figure 1. block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 2. pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 3. application circuit (for 1.2 v) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 4. application circuit (for other fixed output voltages) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 5. negative supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 figure 6. active terminator for scsi-2 bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 figure 7. circuit for increasing output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 figure 8. voltage regulator with reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 figure 9. battery backed-up regulated supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 figure 10. post-regulated dual supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 figure 11. adjustable output voltage application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 figure 12. adjustable output voltage application with improved ripple rejection . . . . . . . . . . . . . . . . . 25 figure 13. drawing dimension to-220 (type std-st dual gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . 27 figure 14. drawing dimension to-220 (type std-st single gauge) . . . . . . . . . . . . . . . . . . . . . . . . . 28 figure 15. drawing dimension tube for to-220 dual gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . . 29 figure 16. drawing dimension tube for to-220 single gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . 29 figure 17. drawing dimension dpak (type std-st) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 figure 18. drawing dimension d pak (type fujitsu-subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 figure 19. drawing dimension dpak (type ids-subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 figure 20. dpak footprint recommend ed data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6
ld1117xx diagram doc id 2572 rev 28 5/42 1 diagram figure 1. block diagram
pin configuration ld1117xx 6/42 doc id 2572 rev 28 2 pin configuration note: the tab is connected to the v out . figure 2. pin connections (top view) so-8 to-220 sot-223 dpak
ld1117xx maximum ratings doc id 2572 rev 28 7/42 3 maximum ratings table 2. absolute maximum ratings symbol parameter value unit v in (1) 1. absolute maximum rating of v in = 18 v, when i out is lower than 20 ma. dc input voltage 15 v p tot power dissipation 12 w t stg storage temperature range -40 to +150 c t op operating junction temperature range for c version -40 to +125 c for standard version 0 to +125 c table 3. thermal data symbol parameter sot-223 so-8 dpak to-220 unit r thjc thermal resistance junction-case 15 20 8 3 c/w r thja thermal resistance junction-ambient 50 c/w
schematic application ld1117xx 8/42 doc id 2572 rev 28 4 schematic application figure 3. application circuit (for 1.2 v) figure 4. application circuit (for other fixed output voltages)
ld1117xx electrical characteristics doc id 2572 rev 28 9/42 5 electrical characteristics refer to the test circuits, t j = 0 to 125 c, c o = 10 f, r = 120 between gnd and out pins, unless otherwise specified. table 4. electrical characteristics of ld1117#12 symbol parameter test co ndition min. typ. max. unit v o output voltage v in = 3.2 v, i o = 10 ma, t j = 25 c 1.188 1.20 1.212 v v o reference voltage i o = 10 to 800 ma v in - v o = 1.4 to 10 v 1.140 1.20 1.260 v v o line regulation v in - v o = 1.5 to 13.75 v, i o = 10 ma 0.035 0.2 % v o load regulation v in - v o = 3 v, i o = 10 to 800 ma 0.1 0.4 % v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage 15 v i adj adjustment pin current v in 15 v 60 120 a i adj adjustment pin current change v in - v o = 1.4 to 10 v i o = 10 to 800 ma 15a i o(min) minimum load current v in = 15 v 2 5 ma i o output current v in - v o = 5 v, t j = 25 c 800 950 1300 ma en output noise (%v o ) b = 10 hz to 10 khz, t j = 25 c 0.003 % svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in - v o = 3 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma 1 1.1 v i o = 500 ma 1.05 1.15 i o = 800 ma 1.10 1.2 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
electrical characteristics ld1117xx 10/42 doc id 2572 rev 28 refer to the test circuits, t j = 0 to 125 c, c o = 10 f, unless otherwise specified. table 5. electrical characteristics of ld1117#18 symbol parameter test co ndition min. typ. max. unit v o output voltage v in = 3.8 v, i o = 10 ma, t j = 25 c 1.78 1.8 1.82 v v o output voltage i o = 0 to 800 ma, v in = 3.3 to 8 v 1.76 1.84 v v o line regulation v in = 3.3 to 8 v, i o = 0 ma 1 6 mv v o load regulation v in = 3.3 v, i o = 0 to 800 ma 1 10 mv v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage i o = 100 ma 15 v i d quiescent current v in 8 v 5 10 ma i o output current v in = 6.8 v, t j = 25 c 800 950 1300 ma en output noise voltage b = 10 hz to 10 khz, t j = 25 c 100 v svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in = 5.5 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma 1 1.1 v i o = 500 ma 1.05 1.15 i o = 800 ma 1.10 1.2 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
ld1117xx electrical characteristics doc id 2572 rev 28 11/42 refer to the test circuits, t j = 0 to 125 c, c o = 10 f, unless otherwise specified. table 6. electrical characteristics of ld1117#25 symbol parameter test co ndition min. typ. max. unit v o output voltage v in = 4.5 v, i o = 10 ma, t j = 25 c 2.475 2.5 2.525 v v o output voltage i o = 0 to 800 ma, v in = 3.9 to 10 v 2.45 2.55 v v o line regulation v in = 3.9 to 10 v, i o = 0 ma 1 6 mv v o load regulation v in = 3.9 v, i o = 0 to 800 ma 1 10 mv v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage i o = 100 ma 15 v i d quiescent current v in 10 v 5 10 ma i o output current v in = 7.5 v t j = 25 c 800 950 1300 ma en output noise voltage b = 10 hz to 10 khz, t j = 25 c 100 v svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in = 5.5 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma 1 1.1 v i o = 500 ma 1.05 1.15 i o = 800 ma 1.10 1.2 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
electrical characteristics ld1117xx 12/42 doc id 2572 rev 28 refer to the test circuits, t j = 0 to 125 c, c o = 10 f, unless otherwise specified. table 7. electrical characteristics of ld1117#30 symbol parameter test co ndition min. typ. max. unit v o output voltage v in = 5 v, i o = 10 ma, t j = 25 c 2.97 3 3.03 v v o output voltage i o = 0 to 800 ma, v in = 4.5 to 10 v 2.94 3.06 v v o line regulation v in = 4.5 to 12 v, i o = 0 ma 1 6 mv v o load regulation v in = 4.5 v, i o = 0 to 800 ma 1 10 mv v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage i o = 100 ma 15 v i d quiescent current v in 12 v 5 10 ma i o output current v in = 8 v, t j = 25 c 800 950 1300 ma en output noise voltage b = 10 hz to 10 khz, t j = 25 c 100 f svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in = 6 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma 1 1.1 v i o = 500 ma 1.05 1.15 i o = 800 ma 1.10 1.2 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
ld1117xx electrical characteristics doc id 2572 rev 28 13/42 refer to the test circuits, t j = 0 to 125 c, c o = 10 f, unless otherwise specified. table 8. electrical characteristics of ld1117#33 symbol parameter test co ndition min. typ. max. unit v o output voltage v in = 5.3 v, i o = 10 ma, t j = 25 c 3.267 3.3 3.333 v v o output voltage i o = 0 to 800 ma, v in = 4.75 to 10 v 3.235 3.365 v v o line regulation v in = 4.75 to 15 v, i o = 0 ma 1 6 mv v o load regulation v in = 4.75 v, i o = 0 to 800 ma 1 10 mv v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage i o = 100 ma 15 v i d quiescent current v in 15 v 5 10 ma i o output current v in = 8.3 v, t j = 25 c 800 950 1300 ma en output noise voltage b = 10 hz to 10 khz, t j = 25 c 100 v svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in = 6.3 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma 1 1.1 v i o = 500 ma 1.05 1.15 i o = 800 ma 1.10 1.2 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
electrical characteristics ld1117xx 14/42 doc id 2572 rev 28 refer to the test circuits, t j = 0 to 125 c, c o = 10 f, unless otherwise specified. table 9. electrical characteristics of ld1117#50 symbol parameter test co ndition min. typ. max. unit v o output voltage v in = 7 v, i o = 10 ma, t j = 25 c 4.95 5 5.05 v v o output voltage i o = 0 to 800 ma, v in = 6.5 to 15 v 4.9 5.1 v v o line regulation v in = 6.5 to 15 v, i o = 0 ma 1 10 mv v o load regulation v in = 6.5 v, i o = 0 to 800 ma 1 15 mv v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage i o = 100 ma 15 v i d quiescent current v in 15 v 5 10 ma i o output current v in = 10 v, t j = 25 c 800 950 1300 ma en output noise voltage b = 10 hz to 10 khz, t j = 25 c 100 v svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in = 8 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma 1 1.1 v i o = 500 ma 1.05 1.15 i o = 800 ma 1.10 1.2 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
ld1117xx electrical characteristics doc id 2572 rev 28 15/42 refer to the test circuits, t j = 0 to 125 c, c o = 10 f, unless otherwise specified. table 10. electrical characteristics of ld1117 (adjustable) symbol parameter test condition min. typ. max. unit v ref reference voltage v in - v o = 2 v, i o = 10 ma, t j = 25 c 1.238 1.25 1.262 v v ref reference voltage i o = 10 to 800 ma, v in - v o = 1.4 to 10 v 1.225 1.275 v v o line regulation v in - v o = 1.5 to 13.75 v, i o = 10 ma 0.035 0.2 % v o load regulation v in - v o = 3 v, i o = 10 to 800 ma 0.1 0.4 % v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage 15 v i adj adjustment pin current v in 15 v 60 120 a i adj adjustment pin current change v in - v o = 1.4 to 10 v, i o = 10 to 800 ma 1 5 a i o(min) minimum load current v in = 15 v 2 5 ma i o output current v in - v o = 5 v, t j = 25 c 800 950 1300 ma en output noise (%v o ) b = 10 hz to 10 khz, t j = 25 c 0.003 % svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in - v o = 3 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma 1 1.1 v i o = 500 ma 1.05 1.15 i o = 800 ma 1.10 1.2 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
electrical characteristics ld1117xx 16/42 doc id 2572 rev 28 refer to the test circuits, t j = -40 to 125 c, c o = 10 f, r = 120 between gnd and out pins, unless otherwise specified. table 11. electrical characteristics of ld1117#12c symbol parameter test condition min. typ. max. unit v ref reference voltage v in - v o = 2 v, i o = 10 ma, t j = 25 c 1.176 1.20 1.224 v v ref reference voltage i o = 10 to 800 ma, v in - v o = 1.4 to 10 v 1.120 1.20 1.280 v v o line regulation v in - v o = 1.5 to 13.75 v, i o = 10 ma 1 % v o load regulation v in - v o = 3 v, i o = 10 to 800 ma 1 % v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage 15 v i adj adjustment pin current v in 15 v 60 120 a i adj adjustment pin current change v in - v o = 1.4 to 10 v i o = 10 to 800 ma 15a i o(min) minimum load current v in = 15 v 2 5 ma i o output current v in - v o = 5 v, t j = 25 c 800 950 1300 ma en output noise (%v o ) b = 10 hz to 10 khz, t j = 25 c 0.003 % svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in - v o = 3 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma, t j = 0 to 125 c 1 1.1 v i o = 500 ma, t j = 0 to 125 c 1.05 1.2 i o = 800 ma, t j = 0 to 125 c 1.10 1.3 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
ld1117xx electrical characteristics doc id 2572 rev 28 17/42 refer to the test circuits, t j = -40 to 125 c, c o = 10 f, unless otherwise specified. table 12. electrical characteristics of ld1117#18c symbol parameter test co ndition min. typ. max. unit v o output voltage v in = 3.8 v, i o = 10 ma, t j = 25 c 1.76 1.8 1.84 v v o output voltage i o = 0 to 800 ma, v in = 3.9 to 10 v 1.73 1.87 v v o line regulation v in = 3.3 to 8 v, i o = 0 ma 1 30 mv v o load regulation v in = 3.3 v, i o = 0 to 800 ma 1 30 mv v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage i o = 100 ma 15 v i d quiescent current v in 8 v 5 10 ma i o output current v in = 6.8 v t j = 25 c 800 950 1300 ma en output noise voltage b = 10 hz to 10 khz, t j = 25 c 100 v svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in = 5.5 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma, t j = 0 to 125 c 1 1.1 v i o = 500 ma, t j = 0 to 125 c 1.05 1.15 i o = 800 ma, t j = 0 to 125 c 1.10 1.2 v d dropout voltage i o = 100 ma 1.1 v i o = 500 ma 1.2 i o = 800 ma 1.3 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
electrical characteristics ld1117xx 18/42 doc id 2572 rev 28 refer to the test circuits, t j = -40 to 125 c, c o = 10 f, unless otherwise specified. table 13. electrical characteristics of ld1117#25c symbol parameter test co ndition min. typ. max. unit v o output voltage v in = 4.5 v, i o = 10 ma, t j = 25 c 2.45 2.5 2.55 v v o output voltage i o = 0 to 800 ma, v in = 3.9 to 10 v 2.4 2.6 v v o line regulation v in = 3.9 to 10 v, i o = 0 ma 1 30 mv v o load regulation v in = 3.9 v, i o = 0 to 800 ma 1 30 mv v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage i o = 100 ma 15 v i d quiescent current v in 10 v 5 10 ma i o output current v in = 7.5 v t j = 25 c 800 950 1300 ma en output noise voltage b = 10 hz to 10 khz, t j = 25 c 100 v svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in = 5.5 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma, t j = 0 to 125 c 1 1.1 v i o = 500 ma, t j = 0 to 125 c 1.05 1.15 i o = 800 ma, t j = 0 to 125 c 1.10 1.2 v d dropout voltage i o = 100 ma 1.1 v i o = 500 ma 1.2 i o = 800 ma 1.3 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
ld1117xx electrical characteristics doc id 2572 rev 28 19/42 refer to the test circuits, t j = -40 to 125 c, c o = 10 f, unless otherwise specified. table 14. electrical characteristics of ld1117#33c symbol parameter test co ndition min. typ. max. unit v o output voltage v in = 5.3 v, i o = 10 ma, t j = 25 c 3.24 3.3 3.36 v v o output voltage i o = 0 to 800 ma, v in = 4.75 to 10 v 3.16 3.44 v v o line regulation v in = 4.75 to 15 v, i o = 0 ma 1 30 mv v o load regulation v in = 4.75 v, i o = 0 to 800 ma 1 30 mv v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage i o = 100 ma 15 v i d quiescent current v in 15 v 5 10 ma i o output current v in = 8.3 v, t j = 25 c 800 950 1300 ma en output noise voltage b = 10 hz to 10 khz, t j = 25 c 100 v svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in = 6.3 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma, t j = 0 to 125 c 1 1.1 v i o = 500 ma, t j = 0 to 125 c 1.05 1.15 i o = 800 ma, t j = 0 to 125 c 1.10 1.2 v d dropout voltage i o = 100 ma 1.1 v i o = 500 ma 1.2 i o = 800 ma 1.3 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
electrical characteristics ld1117xx 20/42 doc id 2572 rev 28 refer to the test circuits, t j = -40 to 125 c, c o = 10 f, unless otherwise specified. table 15. electrical characteristics of ld1117#50c symbol parameter test co ndition min. typ. max. unit v o output voltage v in = 7 v, i o = 10 ma, t j = 25 c 4.9 5 5.1 v v o output voltage i o = 0 to 800 ma, v in = 6.5 to 15 v 4.8 5.2 v v o line regulation v in = 6.5 to 15 v, i o = 0 ma 1 50 mv v o load regulation v in = 6.5 v, i o = 0 to 800 ma 1 50 mv v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage i o = 100 ma 15 v i d quiescent current v in 15 v 5 10 ma i o output current v in = 10 v, t j = 25 c 800 950 1300 ma en output noise voltage b = 10 hz to 10 khz, t j = 25 c 100 v svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in = 8 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma, t j = 0 to 125 c 1 1.1 v i o = 500 ma, t j = 0 to 125 c 1.05 1.15 i o = 800 ma, t j = 0 to 125 c 1.10 1.2 v d dropout voltage i o = 100 ma 1.1 v i o = 500 ma 1.2 i o = 800 ma 1.3 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
ld1117xx electrical characteristics doc id 2572 rev 28 21/42 refer to the test circuits, t j = -40 to 125 c, c o = 10 f, unless otherwise specified. table 16. electrical characteristics of ld1117c (adjustable) symbol parameter test condition min. typ. max. unit v ref reference voltage v in - v o = 2 v, i o = 10 ma, t j = 25 c 1.225 1.25 1.275 v v ref reference voltage i o = 10 to 800 ma, v in - v o = 1.4 to 10 v 1.2 1.3 v v o line regulation v in - v o = 1.5 to 13.75 v, i o = 10 ma 1 % v o load regulation v in - v o = 3 v, i o = 10 to 800 ma 1 % v o temperature stability 0.5 % v o long term stability 1000 hrs, t j = 125 c 0.3 % v in operating input voltage 15 v i adj adjustment pin current v in 15 v 60 120 a i adj adjustment pin current change v in - v o = 1.4 to 10 v, i o = 10 to 800 ma 1 10 a i o(min) minimum load current v in = 15 v 2 5 ma i o output current v in - v o = 5 v, t j = 25 c 800 950 1300 ma en output noise (%v o ) b = 10 hz to 10 khz, t j = 25 c 0.003 % svr supply voltage rejection i o = 40 ma, f = 120 hz, t j = 25 c v in - v o = 3 v, v ripple = 1 v pp 60 75 db v d dropout voltage i o = 100 ma, t j = 0 to 125 c 1 1.1 v i o = 500 ma, t j = 0 to 125 c 1.05 1.15 i o = 800 ma, t j = 0 to 125 c 1.10 1.2 v d dropout voltage i o = 100 ma 1.1 v i o = 500 ma 1.2 i o = 800 ma 1.3 thermal regulation t a = 25 c, 30 ms pulse 0.01 0.1 %/w
typical application ld1117xx 22/42 doc id 2572 rev 28 6 typical application figure 5. negative supply figure 6. active terminator for scsi-2 bus figure 7. circuit for increasing output voltage
ld1117xx typical application doc id 2572 rev 28 23/42 figure 8. voltage regulator with reference figure 9. battery backed-up regulated supply
typical application ld1117xx 24/42 doc id 2572 rev 28 figure 10. post-regulated dual supply
ld1117xx ld1117 adjustable: application note doc id 2572 rev 28 25/42 7 ld1117 adjustable: application note the ld1117 adjustable has a thermal stabilized 1.25 0.0 12 v reference vo ltage between the out and adj pins. i adj is 60 a typ. (120 a max.) and i adj is 1 a typ. (5 a max.). r 1 is normally fixed to 120 . from figure 10 we obtain: v out = v ref + r 2 (i adj +i r1 ) = v ref + r 2 (i adj +v ref /r 1 ) = v ref (1 + r 2 / r 1 ) + r 2 x i adj . in normal application r 2 value is in the range of few k , so the r 2 x i adj product could not be considered in the v out calculation; then the above expression becomes: v out = v ref (1 + r 2 / r 1 ). in order to have the better load regulation it is important to realize a good kelvin connection of r 1 and r 2 resistors. in particular r 1 connection must be realized very close to out and adj pin, while r 2 ground connection must be placed as near as possible to the negative load pin. ripple rejection can be improved by introducing a 10 f electrolytic capacitor placed in parallel to the r 2 resistor (see figure 11 ). figure 11. adjustable output voltage application figure 12. adjustable output voltage application with improved ripple rejection
package mechanical data ld1117xx 26/42 doc id 2572 rev 28 8 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. in spite of some difference in tolerances, the packages are compatible. table 17. to-220 mechanical data dim. type std - st dual gauge t ype 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
ld1117xx package mechanical data doc id 2572 rev 28 27/42 note: 1 maximum 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 13. drawing dimension to-220 (type std-st dual gauge) 0015988_s
package mechanical data ld1117xx 28/42 doc id 2572 rev 28 figure 14. drawing dimension to -220 (type std-st single gauge) 8174627_b
ld1117xx package mechanical data doc id 2572 rev 28 29/42 figure 15. drawing dimension tube for to-220 dual gauge (mm.) figure 16. drawing dimension tube for to-220 single gauge (mm.)
package mechanical data ld1117xx 30/42 doc id 2572 rev 28 dim. mm. mil s . min. typ. max. min. typ. max. a1. 8 70. 9 a1 0.02 0.1 0. 83 . 9 b 0.6 0.7 0. 8 52 3 .6 27.6 33 .5 b1 2. 933 .15 114.2 11 8 .1 124.0 c 0.24 0.26 0. 3 5 9 .4 10.2 1 3 . 8 d6. 3 6.5 6.7 24 8 .0 255. 9 26 3 . 8 e2. 39 0.6 e1 4.6 1 8 1.1 e 3 . 33 .5 3 .7 12 9 . 9 1 3 7. 8 145.7 h6.777. 3 26 3 . 8 275.7 2 8 7.5 v 10 10 s ot-22 3 mechanical data 0046067/h
ld1117xx package mechanical data doc id 2572 rev 28 31/42 dim. mm. inch. min. typ. max. min. typ. max. a1. 3 5 1.75 0.05 3 0.06 9 a1 0.10 0.25 0.04 0.010 a2 1.10 1.65 0.04 3 0.065 b0. 33 0.51 0.01 3 0.020 c0.1 9 0.25 0.007 0.010 d4. 8 0 5.00 0.1 89 0.1 9 7 e 3 . 8 0 4.00 0.150 0.157 e 1.27 0.050 h5. 8 0 6.20 0.22 8 0.244 h 0.25 0.50 0.010 0.020 l 0.40 1.27 0.016 0.050 k 8 (m a x.) ddd 0.1 0.04 s o- 8 mechanical data 001602 3 /c
package mechanical data ld1117xx 32/42 doc id 2572 rev 28 note: 1 maximum resin gate protrusion: 0.5 mm. 2 maximum resin protrusion: 0.25 mm. figure 17. drawing dimension dpak (type std-st) 0068772/g
ld1117xx package mechanical data doc id 2572 rev 28 33/42 figure 18. drawing dimension dpak (type fujitsu-subcon.) 0068772/g
package mechanical data ld1117xx 34/42 doc id 2572 rev 28 figure 19. drawing dimension dpak (type ids-subcon.) 0068772/g
ld1117xx package mechanical data doc id 2572 rev 28 35/42 note: the dpak package coming from the two subcontractors (fujitsu and ids) are fully compatible with the st's package suggested footprint. table 18. dpak mechanical data dim. type std-st type fujitsu-subcon. type ids-subcon mm. mm. mm. min. typ. max. min. typ. max. min. typ. max. a 2.20 2.40 2.25 2.30 2.35 2.19 2.38 a1 0.90 1.10 0.96 1.06 0.89 1.14 a2 0.03 0.23 0 0.10 0.03 0.23 b 0.64 0.90 0.76 0.86 0.64 0.88 b4 5.20 5.40 5.28 5.38 5.21 5.46 c 0.45 0.60 0.46 0.56 0.46 0.58 c2 0.48 0.60 0.46 0.56 0.46 0.58 d 6.00 6.20 6.05 6.15 5.97 6.22 d1 5.10 5.27 5.47 5.20 e 6.40 6.60 6.55 6.60 6.65 6.35 6.73 e1 4.70 4.77 4.70 e 2.28 2.23 2.28 2.33 2.28 e1 4.40 4.60 4.51 4.61 h 9.35 10.10 9.90 10.30 9.40 10.42 l 1.00 1.40 1.60 0.90 l1 2.80 2.50 2.65 l2 0.80 1.03 1.13 0.89 1.27 l4 0.60 1.00 0.70 0.90 0.64 1.02 r 0.20 0.40 0.20 v2 0 8 0 8 0 8
package mechanical data ld1117xx 36/42 doc id 2572 rev 28 figure 20. dpak footprint recommended data table 19. footprint data values mm. inch. a6.700.264 b 6.70 0.64 c 1.8 0.070 d 3.0 0.118 e1.600.063 f2.300.091 g2.300.091
ld1117xx package mechanical data doc id 2572 rev 28 37/42 dim. mm. inch. min. typ. max. min. typ. max. a 33 0 12. 99 2 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 6.7 3 6. 83 6. 93 0.265 0.26 9 0.27 3 bo 7. 3 2 7.42 7.52 0.2 88 0.2 9 2 0.2 9 6 ko 1.7 8 2 0.070 0.07 8 po 3 . 9 4.0 4.1 0.15 3 0.157 0.161 p7. 98 .0 8 .1 0. 3 11 0. 3 15 0. 3 1 9 tape & reel s ot22 3 mechanical data
package mechanical data ld1117xx 38/42 doc id 2572 rev 28 dim. mm. inch. min. typ. max. min. typ. max. a 33 0 12. 99 2 c 12. 8 1 3 .2 0.504 0.51 9 d 20.2 0.7 9 5 n60 2. 3 62 t 22.4 0. 88 2 ao 8 .1 8 .5 0. 3 1 9 0. 33 5 bo 5.5 5. 9 0.216 0.2 3 2 ko 2.1 2. 3 0.0 8 2 0.0 9 0 po 3 . 9 4.1 0.15 3 0.161 p7. 98 .1 0. 3 11 0. 3 1 9 tape & reel s o- 8 mechanical data
ld1117xx package mechanical data doc id 2572 rev 28 39/42 dim. mm. inch. min. typ. max. min. typ. max. a 33 0 12. 99 2 c12. 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 t22.40. 88 2 ao 6. 8 06. 9 0 7.00 0.26 8 0.272 0.2.76 bo 10.40 10.50 10.60 0.40 9 0.41 3 0.417 ko 2.55 2.65 2.75 0.100 0.104 0.105 po 3 . 9 4.0 4.1 0.15 3 0.157 0.161 p7. 98 .0 8 .1 0. 3 11 0. 3 15 0. 3 1 9 tape & reel dpak-ppak mechanical data
order codes ld1117xx 40/42 doc id 2572 rev 28 9 order codes table 20. order codes packages sot-223 so-8 dpak dpak (t & r) to-220 output voltages ld1117s12tr ld1117d12tr (1) 1. available on request. ld1117dt12 (1) ld1117dt12tr 1.2 v ld1117s12ctr ld1117d12ctr (1) ld1117dt12c (1) ld1117v12c (1) 1.2 v ld1117s18tr ld1117d18tr (1) ld1117dt18tr ld1117v18 1.8 v ld1117s18ctr ld1117d18ctr (1) ld1117dt18ctr ld1117v18c (1) 1.8 v ld1117s25tr ld1117d25tr (1) ld1117dt25tr 2.5 v LD1117S25CTR ld1117d25ctr (1) ld1117dt25ctr 2.5 v ld1117s30tr 3 v ld1117s33tr ld1117d33tr ld1117dt33tr ld1117v33 3.3 v ld1117s33ctr ld1117d33ctr ld1117dt33ctr ld1117v33c 3.3 v ld1117s50tr ld1117dt50tr ld1117v50 5 v ld1117s50ctr ld1117dt50ctr 5 v ld1117str ld1117dtr (1) ld1117dttr ld1117v adj from 1.25 to 15v ld1117sc-r ld1117dc-r (1) ld1117dtc (1) ld1117dtc-r ld1117vc (1) adj from 1.25 to 15v
ld1117xx revision history doc id 2572 rev 28 41/42 10 revision history table 21. document revision history date revision changes 22-sep-2004 15 add new part number #12c; typing error: note on table 2. 25-oct-2004 16 add v ref reference voltage on table 12. 18-jul-2005 17 the dpak mechanical data updated. 25-nov-2005 18 the to220fm package removed. 14-dec-2005 19 the t op on table 2 updated. 06-dec-2006 20 dpak mechanical data updated and added footprint data. 05-apr-2007 21 order codes updated. 30-nov-2007 22 added ta b l e 1 . 16-apr-2008 23 modified: table 20 on page 40 . 08-jul-2008 24 added note 1. on page 7 . 30-mar-2009 25 modified: v in max value table 5 on page 10 and figure 10 on page 24 . 29-jul-2009 26 modified: table 20 on page 40 . 03-feb-2010 27 modified table 11 on page 16 . 22-mar-2010 28 added: table 17 on page 26 , figure 13 on page 27 , figure 14 on page 28 , figure 15 and figure 16 on page 29 .
ld1117xx 42/42 doc id 2572 rev 28 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 parti cular 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 an authorized st representative, st products are not recommended, authorized or warranted for use in milita ry, 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 registered 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. ? 2010 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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