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july 2008 rev 12 1/39 39 lexxab lexxc very low drop voltage re gulators with inhibit features very low dropout voltage (0.2 v typ) very low quiescent current (typ. 50 a in off mode, 0.5 ma in on mode, no load) output current up to 100 ma output voltages of 2.5; 2.7; 3; 3.3; 3.5; 4; 4.5; 4.7; 5; 8 v internal current and thermal limit only 2.2 f for stability available in 1 % (a) or 2 % (c) selection at 25 c supply voltage rejection: 80 db (typ.) temperature range: -40 to 125 c description the lexxab and lexxc are very low drop voltage regulators available in so-8 and to-92 packages and in a wide range of output voltages. the very low drop voltage (0.2 v) and the very low quiescent current make them particularly suitable for low noise low power applications and specially in battery powered systems. they are pin to pin compatible with the older l78lxx series. furthermore in the 8 pin configuration (so-8) they employ a shutdown logic control (pin 5, ttl compatible). this means that when the device is used as a local regulator, it?s possible to put in stand by a part of the board even more decreasing the total power consumption. in the three terminal configuration (to-92) the device is even in on state, maintaining the same electrical performances. it needs only 2.2 f capaci tor for stability allowing room and cost saving effect. so-8 to-92 table 1. device summary part numbers le25ab le35c le47ab le27ab le35ab le50c le30c le40c le50ab le33c le45c le80c le33ab le45ab le80ab www.st.com
contents lexxab lexxc 2/39 contents 1 diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 typical performance characteristi cs . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 6 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 7 order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 8 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
lexxab lexxc list of figures 3/39 list of figures figure 1. block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 2. pin connections (top view for so-8, bottom view for to-92) . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 3. test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 figure 4. dropout voltage vs output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 figure 5. dropout voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 figure 6. supply current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 figure 7. supply current vs input voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 figure 8. short circuit current vs dropout voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 figure 9. svr vs frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 figure 10. logic controlled precision 3.3/5.0 v selectable output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 figure 11. sequential multi-output supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 figure 12. multiple supply with on/off toggle switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 figure 13. basic inhibit functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
list of tables lexxab lexxc 4/39 list of tables table 1. device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 table 2. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 3. thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 4. electrical characteristics for le12ab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 table 5. electrical characteristics for le25ab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 table 6. electrical characteristics for le25c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 table 7. electrical characteristics for le27ab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 table 8. electrical characteristics for le27c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 table 9. electrical characteristics for le30ab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 table 10. electrical characteristics for le30c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 table 11. electrical characteristics for le33ab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 12. electrical characteristics for le33c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 table 13. electrical characteristics for le35ab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 table 14. electrical characteristics for le35c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 table 15. electrical characteristics for le40ab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 table 16. electrical characteristics for le40c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 table 17. electrical characteristics for le45ab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 table 18. electrical characteristics for le45c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 table 19. electrical characteristics for le47ab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 table 20. electrical characteristics for le47c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 table 21. electrical characteristics for le50ab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 table 22. electrical characteristics for le50c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 table 23. electrical characteristics for le80ab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 table 24. electrical characteristics for le80c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 table 25. order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 table 26. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
lexxab lexxc diagram 5/39 1 diagram figure 1. block diagram
pin configuration lexxab lexxc 6/39 2 pin configuration figure 2. pin connections (top view for so-8, bottom view for to-92) to-92 so-8 pin 1 = v out pin 2 = gnd pin 3 = v in
lexxab lexxc maximum ratings 7/39 3 maximum ratings note: if the inhibit pin is left floating, the regulator is in on mode. however, to avoid any noise picking-up, it is suggested to ground it when the inhibit function is not used. table 2. absolute maximum ratings symbol parameter value unit v i dc input voltage 20 v i o output current internally limited (1) 1. our so-8 package used for voltage regulators is modified inter nally to have pins 2, 3, 6 and 7 electrically communed to the die attach flag. this particular fram e decreases the total thermal resistance of the package and increases its ability to dissipate power when an appropriate area of copper on the prin ted circuit board is available for heatsinking. the external dimensions are the same as for the standard so-8. p tot power dissipation internally limited t stg storage temperature range -65 to 150 c t op operating junction temperature range -40 to 125 c table 3. thermal data symbol parameter so-8 to-92 unit r thjc thermal resistance junction-case 20 c/w r thja thermal resistance junction-ambient 55 200 c/w figure 3. test circuit
electrical characteristics lexxab lexxc 8/39 4 electrical characteristics table 4. electrical characteristics for le12ab (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 3.3 v 1.225 1.25 1.275 v i o = 10 ma, v i = 3.3 v, t a = -25 to 85c 1.2 1.3 v i operating input voltage i o = 100 ma 2.5 18 v i o output current limit 150 ma v o line regulation v i = 2.5 to 18 v, i o = 0.5 ma 3 15 mv v o load regulation v i = 2.8 v, i o = 0.5 to 100 ma 3 15 mv i d quiescent current v i = 2.5 to 18v, i o = 0ma on mode 0.5 1 ma v i = 2.5 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 3.5 1 v f = 120 hz 82 db f = 1 khz 77 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma, t a = -40 to 125c 1.25 v v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
lexxab lexxc electrical characteristics 9/39 table 5. electrical characteristics for le25ab (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 4.5 v 2.475 2.5 2.525 v i o = 10 ma, v i = 4.5 v, t a = -25 to 85c 2.45 2.55 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 3.2 to 18 v, i o = 0.5 ma 3 15 mv v o load regulation v i = 3.5 v, i o = 0.5 to 100 ma 3 15 mv i d quiescent current v i = 3.5 to 18v, i o = 0ma on mode 0.5 1 ma v i = 3.5 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 4.5 1 v f = 120 hz 82 db f = 1 khz 77 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
electrical characteristics lexxab lexxc 10/39 table 6. electrical characteristics for le25c (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 4.5 v 2.45 2.5 2.55 v i o = 10 ma, v i = 4.5 v, t a = -25 to 85c 2.4 2.6 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 3.2 to 18 v, i o = 0.5 ma 3 20 mv v o load regulation v i = 3.5 v, i o = 0.5 to 100 ma 3 25 mv i d quiescent current v i = 3.5 to 18v, i o = 0ma on mode 0.5 1 ma v i = 3.5 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 4.5 1 v f = 120 hz 82 db f = 1 khz 77 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
lexxab lexxc electrical characteristics 11/39 table 7. electrical characteristics for le27ab (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 4.7 v 2.673 2.7 2.727 v i o = 10 ma, v i = 4.7 v, t a = -25 to 85c 2.646 2.754 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 3.4 to 18 v, i o = 0.5 ma 3 15 mv v o load regulation v i = 3.7 v, i o = 0.5 to 100 ma 3 15 mv i d quiescent current v i = 3.7 to 18v, i o = 0ma on mode 0.5 1 ma v i = 3.7 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 4.7 1 v f = 120 hz 82 db f = 1 khz 77 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
electrical characteristics lexxab lexxc 12/39 table 8. electrical characteristics for le27c (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 4.7 v 2.646 2.7 2.754 v i o = 10 ma, v i = 4.7 v, t a = -25 to 85c 2.592 2.808 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 3.4 to 18 v, i o = 0.5 ma 3 20 mv v o load regulation v i = 3.7 v, i o = 0.5 to 100 ma 3 25 mv i d quiescent current v i = 3.7 to 18v, i o = 0ma on mode 0.5 1 ma v i = 3.7 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 4.7 1 v f = 120 hz 82 db f = 1 khz 77 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
lexxab lexxc electrical characteristics 13/39 table 9. electrical characteristics for le30ab (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 5 v 2.970 3 3.030 v i o = 10 ma, v i = 5 v, t a = -25 to 85c 2.940 3.060 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 3.7 to 18 v, i o = 0.5 ma 3 15 mv v o load regulation v i = 4 v, i o = 0.5 to 100 ma 3 15 mv i d quiescent current v i = 4 to 18v, i o = 0ma on mode 0.5 1 ma v i = 4 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 5 1 v f = 120 hz 81 db f = 1 khz 76 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
electrical characteristics lexxab lexxc 14/39 table 10. electrical characteristics for le30c (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 5 v 2.940 3 3.060 v i o = 10 ma, v i = 5 v, t a = -25 to 85c 2.880 3.120 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 3.7 to 18 v, i o = 0.5 ma 3 20 mv v o load regulation v i = 4 v, i o = 0.5 to 100 ma 3 25 mv i d quiescent current v i = 4 to 18v, i o = 0ma on mode 0.5 1 ma v i = 4 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 5 1 v f = 120 hz 81 db f = 1khz 76 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
lexxab lexxc electrical characteristics 15/39 table 11. electrical characteristics for le33ab (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 5.3 v 3.267 3.3 3.333 v i o = 10 ma, v i = 5.3 v, t a = -25 to 85c 3.234 3.366 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 4 to 18 v, i o = 0.5 ma 3 15 mv v o load regulation v i = 4.3 v, i o = 0.5 to 100 ma 3 15 mv i d quiescent current v i = 4.3 to 18v, i o = 0ma on mode 0.5 1 ma v i = 4.3 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 5.3 1 v f = 120 hz 80 db f = 1 khz 75 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
electrical characteristics lexxab lexxc 16/39 table 12. electrical characteristics for le33c (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 5.3 v 3.234 3.3 3.366 v i o = 10 ma, v i = 5.3 v, t a = -25 to 85c 3.168 3.432 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 4 to 18 v, i o = 0.5 ma 3 20 mv v o load regulation v i = 4.3 v, i o = 0.5 to 100 ma 3 25 mv i d quiescent current v i = 4.3 to 18v, i o = 0ma on mode 0.5 1 ma v i = 4.3 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 5.3 1 v f = 120 hz 80 db f = 1 khz 75 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
lexxab lexxc electrical characteristics 17/39 table 13. electrical characteristics for le35ab (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 5.5 v 3.465 3.5 3.535 v i o = 10 ma, v i = 5.5 v, t a = -25 to 85c 3.43 3.57 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 4.2 to 18 v, i o = 0.5 ma 3 15 mv v o load regulation v i = 4.5 v, i o = 0.5 to 100 ma 3 15 mv i d quiescent current v i = 4.5 to 18v, i o = 0ma on mode 0.5 1 ma v i = 4.5 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 5.5 1 v f = 120 hz 79 db f = 1 khz 74 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
electrical characteristics lexxab lexxc 18/39 table 14. electrical characteristics for le35c (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 5.5 v 3.43 3.5 3.57 v i o = 10 ma, v i = 5.5 v, t a = -25 to 85c 3.36 3.64 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 4.2 to 18 v, i o = 0.5 ma 3 20 mv v o load regulation v i = 4.5 v, i o = 0.5 to 100 ma 3 25 mv i d quiescent current v i = 4.5 to 18v, i o = 0ma on mode 0.5 1 ma v i = 4.5 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 5.5 1 v f = 120 hz 79 db f = 1 khz 74 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
lexxab lexxc electrical characteristics 19/39 table 15. electrical characteristics for le40ab (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 6 v 3.9644.04 v i o = 10 ma, v i = 6 v, t a = -25 to 85c 3.92 4.08 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 4.7 to 18 v, i o = 0.5 ma 4 20 mv v o load regulation v i = 5 v, i o = 0.5 to 100 ma 3 15 mv i d quiescent current v i = 5 to 18v, i o = 0ma on mode 0.5 1 ma v i = 5 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 6 1 v f = 120 hz 78 db f = 1 khz 73 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
electrical characteristics lexxab lexxc 20/39 table 16. electrical characteristics for le40c (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 6 v 3.9244.08 v i o = 10 ma, v i = 6 v, t a = -25 to 85c 3.84 4.16 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 4.7 to 18 v, i o = 0.5 ma 4 30 mv v o load regulation v i = 5 v, i o = 0.5 to 100 ma 3 25 mv i d quiescent current v i = 5 to 18v, i o = 0ma on mode 0.5 1 ma v i = 5 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 6 1 v f = 120 hz 78 db f = 1 khz 73 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
lexxab lexxc electrical characteristics 21/39 table 17. electrical characteristics for le45ab (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 6.5 v 4.445 4.5 4.545 v i o = 10 ma, v i = 6.5 v, t a = -25 to 85c 4.41 4.59 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 5.2 to 18 v, i o = 0.5 ma 4 20 mv v o load regulation v i = 5.5 v, i o = 0.5 to 100 ma 3 15 mv i d quiescent current v i = 5.5 to 18v, i o = 0ma on mode 0.5 1 ma v i = 5.5 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 6.5 1 v f = 120 hz 77 db f = 1 khz 72 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
electrical characteristics lexxab lexxc 22/39 table 18. electrical characteristics for le45c (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 6.5 v 4.41 4.5 4.59 v i o = 10 ma, v i = 6.5 v, t a = -25 to 85c 4.32 4.68 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 5.2 to 18 v, i o = 0.5 ma 4 30 mv v o load regulation v i = 5.5 v, i o = 0.5 to 100 ma 3 25 mv i d quiescent current v i = 5.5 to 18v, i o = 0ma on mode 0.5 1 ma v i = 5.5 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 6.5 1 v f = 120 hz 77 db f = 1 khz 72 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
lexxab lexxc electrical characteristics 23/39 table 19. electrical characteristics for le47ab (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 6.7 v 4.653 4.7 4.747 v i o = 10 ma, v i = 6.7 v, t a = -25 to 85c 4.606 4.794 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 5.4 to 18 v, i o = 0.5 ma 4 20 mv v o load regulation v i = 5.7 v, i o = 0.5 to 100 ma 3 15 mv i d quiescent current v i = 5.7 to 18v, i o = 0ma on mode 0.5 1 ma v i = 5.7 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 6.7 1 v f = 120 hz 77 db f = 1 khz 72 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
electrical characteristics lexxab lexxc 24/39 table 20. electrical characteristics for le47c (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 6.7 v 4.606 4.7 4.794 v i o = 10 ma, v i = 6.7 v, t a = -25 to 85c 4.512 4.888 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 5.4 to 18 v, i o = 0.5 ma 4 30 mv v o load regulation v i = 5.7 v, i o = 0.5 to 100 ma 3 25 mv i d quiescent current v i = 5.7 to 18v, i o = 0ma on mode 0.5 1 ma v i = 5.7 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 6.7 1 v f = 120 hz 77 db f = 1 khz 72 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
lexxab lexxc electrical characteristics 25/39 table 21. electrical characteristics for le50ab (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 7 v 4.9555.05 v i o = 10 ma, v i = 7 v, t a = -25 to 85c 4.9 5.1 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 350 425 ma v o line regulation v i = 5.7 to 18 v, i o = 0.5 ma 4 20 mv v o load regulation v i = 6 v, i o = 0.5 to 100 ma 3 15 mv i d quiescent current v i = 6 to 18v, i o = 0ma on mode 0.5 1 ma v i = 6 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 7 1 v f = 120 hz 76 db f = 1 khz 71 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
electrical characteristics lexxab lexxc 26/39 table 22. electrical characteristics for le50c (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 7 v 4.9 5 5.1 v i o = 10 ma, v i = 7 v, t a = -25 to 85c 4.8 5.2 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 350 425 ma v o line regulation v i = 5.7 to 18 v, i o = 0.5 ma 4 30 mv v o load regulation v i = 6 v, i o = 0.5 to 100 ma 3 25 mv i d quiescent current v i = 6 to 18v, i o = 0ma on mode 0.5 1 ma v i = 6 to 18v, i o =100ma 1.5 3 v i = 6 v off mode 50 100 a svr supply voltage rejection i o = 5 ma, v i = 7 1 v f = 120 hz 76 db f = 1 khz 71 f = 10 khz 60 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 6 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
lexxab lexxc electrical characteristics 27/39 table 23. electrical characteristics for le80ab (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 10 v 7.92 8 8.08 v i o = 10 ma, v i = 10 v, t a = -25 to 85c 7.84 8.16 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 8.7 to 18 v, i o = 0.5 ma 5 25 mv v o load regulation v i = 9 v, i o = 0.5 to 100 ma 3 15 mv i d quiescent current v i = 9 to 18v, i o = 0ma on mode 0.7 1.6 ma v i = 9 to 18v, i o =100ma 1.7 3.6 v i = 9 v off mode 70 140 a svr supply voltage rejection i o = 5 ma, v i = 10 1 v f = 120 hz 72 db f = 1 khz 66 f = 10 khz 57 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 9 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
electrical characteristics lexxab lexxc 28/39 table 24. electrical characteristics for le80c (refer to the test circuits, t j = 25 c, c i = 0.1 f, c o = 2.2 f unless otherwise specified.) symbol parameter test conditions min. typ. max. unit v o output voltage i o = 10 ma, v i = 10 v 7.84 8 8.16 v i o = 10 ma, v i = 10 v, t a = -25 to 85c 7.68 8.32 v i operating input voltage i o = 100 ma 18 v i o output current limit 150 ma v o line regulation v i = 8.7 to 18 v, i o = 0.5 ma 5 35 mv v o load regulation v i = 9 v, i o = 0.5 to 100 ma 3 25 mv i d quiescent current v i = 9 to 18v, i o = 0ma on mode 0.7 1.6 ma v i = 9 to 18v, i o =100ma 1.7 3.6 v i = 9 v off mode 70 140 a svr supply voltage rejection i o = 5 ma, v i = 10 1 v f = 120 hz 72 db f = 1 khz 66 f = 10 khz 57 en output noise voltage b = 10 hz to 100 khz 50 v v d dropout voltage i o = 100 ma 0.2 0.4 v i o = 100 ma, t a = -40 to 125c 0.5 v il control input logic low t a = -40 to 125c 0.8 v v ih control input logic high t a = -40 to 125c 2 v i i control input current v i = 9 v, v c = 6 v 10 a c o output bypass capacitance esr = 0.1 to 10 , i o = 0 to 100 ma 2 10 f
lexxab lexxc typical performance characteristics 29/39 5 typical performance characteristics (unless otherwise specified v o(nom) = 3.3 v) figure 4. dropout voltage vs output current figure 5. dropout voltage vs temperature figure 6. supply current vs temperature figure 7. supply current vs input voltage figure 8. short circuit current vs dropout voltage figure 9. svr vs frequency
typical performance characteristics lexxab lexxc 30/39 figure 10. logic controlled precision 3.3/5.0 v selectable output figure 11. sequential multi-output supply
lexxab lexxc typical performance characteristics 31/39 figure 12. multiple supply with on/off toggle switch figure 13. basic inhibit functions
package mechanical data lexxab lexxc 32/39 6 package mechanical data in order to meet environmental requirements, st offers these devices in ecopack ? packages. these packages have a lead-free second level interconnect. the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an st trademark. ecopack specifications are available at: www.st.com.
lexxab lexxc package mechanical data 33/39 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 lexxab lexxc 34/39 dim. mm. mil s . min. typ. max. min. typ. max. a4. 3 24. 9 5 170.1 1 9 4. 9 b 0. 3 6 0.51 14.2 20.1 d 4.45 4. 9 5 175.2 1 9 4. 9 e 3 . 3 0 3 . 9 412 9 . 9 155.1 e 2.41 2.67 9 4. 9 105.1 e1 1.14 1.40 44. 9 55.1 l 12.7 15.4 9 500.0 60 9 . 8 r 2.16 2.41 8 5.0 9 4. 9 s 10. 9 2 1.52 3 6.2 5 9 . 8 w 0.41 0.56 16.1 22.0 5 5 to-92 mechanical data 01027 8 2/d
lexxab lexxc package mechanical data 35/39 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
package mechanical data lexxab lexxc 36/39 dim. mm. inch. min. typ. max. min. typ. max. a1 4. 8 0 0.1 89 t 3 . 8 0 0.150 t1 1.60 0.06 3 t2 2. 3 0 0.0 9 1 d0.4 8 0.01 9 p0 12.5 12. 9 0.4 9 2 0.50 8 p2 5.65 7.05 0.222 0.27 8 f1, f2 2.44 2.54 2. 9 4 0.0 9 6 0.100 0.116 delt a h 2 0.07 9 w 17.5 1 8 .00 1 9 .0 0.6 89 0.70 9 0.74 8 w0 5.7 6. 3 0.224 0.24 8 w1 8 .5 9 .25 0. 33 50. 3 64 w2 0.50 0.20 h1 8 .50 1 8 .70 0.72 8 0.726 h0 15.50 16.50 0.610 0.650 h1 25.00 0. 98 4 d0 3 . 8 4.2 0.150 0.165 t0. 9 00.0 3 5 l1 3 0.11 8 delt a p1 0.0 39 u 50 1. 9 6 8 1 3 60 14.17 3 2 3 01.1 8 1 tape & reel for to-92 mechanical data w w1 w0 w2 a1 d d0 h1 h h0 l l1 f1 f2 p2 p0 delt a p delt a h t2 t1 t t drawing not in s cale
lexxab lexxc order codes 37/39 7 order codes table 25. order codes packages output voltage so-8 so-8 (t&r) to-92 to-92 (t&r) to-92 (ammopak) le12abd-tr (1) 1. available on request. 1.25 v le25abd le25abd-tr (1) le25abz-ap (1) 2.5 v le25cd-tr (1) le25cz-tr (1) le25cz-ap (1) 2.5 v le27abd (1) le27abd-tr (1) 2.7 v le27cd (1) 2.7 v le30abd-tr (1) le30abz-tr 3 v le30cd-tr le30cz-tr 3 v le33abz le33abz-tr (1) le33abz-ap (1) 3.3 v le33cd-tr le33cz le33cz-tr le33cz-ap 3.3 v le35abd-tr (1) LE35ABZ (1) LE35ABZ-tr (1) LE35ABZ-ap (1) 3.5 v le35cd (1) le35cd-tr (1) le35cz-tr (1) le35cz-ap (1) 3.5 v le40abd-tr (1) le40abz (1) le40abz-tr (1) le40abz-ap (1) 4 v le40cd-tr (1) le40cz le40cz-tr (1) le40cz-ap (1) 4 v le45abz-ap (1) 4.5 v le45cd-tr le45cz-ap (1) 4.5 v le47abd (1) le47abd-tr (1) le47abz-tr (1) le47abz-ap (1) 4.7 v le47cd-tr (1) le47cz (1) le47cz-tr (1) le47cz-ap (1) 4.7 v le50abd-tr le50abz le50abz-tr le50abz-ap 5 v le50cd-tr le50cz le50cz-tr le50cz-ap 5 v le80abz-tr (1) 8 v le80cd-tr le80cz-tr (1) 8 v
revision history lexxab lexxc 38/39 8 revision history table 26. document revision history date revision changes 09-jul-2004 6 i o typ. and max. are changed in tab. 24 and 25 - pag. 14. 16-mar-2005 7 add tape & reel for to-92 - note on table 3. 12-feb-2007 8 change value t op on ta b l e 2 . 26-jul-2007 9 add ta bl e 1 in cover page. 29-nov-2007 10 modified: ta b l e 2 5 . 12-feb-2008 11 modified: table 25 on page 37 . 10-jul-2008 12 modified: table 1 on page 1 and table 25 on page 37 .
lexxab lexxc 39/39 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. ? 2008 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 - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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