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ka78xxe/ka78xxae ? 3-terminal 1a positive voltage regulator ? 2012 fairchild semiconductor corporation www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 1 august 2012 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator features ? output current up to 1a ? output voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24v ? thermal overload protection ? short circuit protection ? output transistor safe operating area protection ordering information * refer to below figure for tm / tf suffix for dpak product number output voltage tolerance package operating temperature ka7805etu 4% to-220 (dual gauge) 0 ? c to +125 ? c ka7806etu ka7808etu ka7809etu ka7810etu ka7812etu ka7815etu ka7818etu ka7824etu ka7805aetu 2% ka7809aetu ka7810aetu ka7812aetu ka7815aetu ka7824aetu ka7805ertf 4% d-pak ka7805ertm ka7808ertm ka7809ertm ka7812ertm general description the ka78xxe/ka78xxae series of three-terminal posi- tive regulator are available in the to-220/d-pak package and with several fixed output voltages, making them use- ful in a wide range of applications. each type employs internal current limiting, ther mal shut down and safe oper- ating area protection, making it essentially indestructible. if adequate heat sinking is pr ovided, they can deliver over 1a output current. althoug h designed primarily as fixed voltage regulators, these dev ices can be used with exter- nal components to obtain adjustable voltages and cur- rents. tm : tf : d-pak unit orientation
2 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator block diagram figure 1. pin assignment figure 2. absolute maximum ratings symbol parameter value unit v i input voltage v o = 5v to 18v 35 v v o = 24v 40 r jc thermal resistance junction-cases (to-220) 5 c/w r ja thermal resistance junction-air (to-220) 65 c/w t opr operating temperature range (ka78xxe/ae/er) 0 to +125 ? t stg storage temperature range -65 to +150 c starting circuit input 1 reference voltage current generator soa protection thermal protection series pass element error amplifier output 3 gnd 2 1 1. input 2. gnd 3. output 1 gnd to-220 d-pak gnd (dual gauge)
3 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7805e/ka7805er) refer to test circuit, 0? < t j < 125?, i o = 500ma, v i = 10v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 1. load and line regulation are speci?d at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 2. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7805e/er unit min. typ. max. v o output voltage t j = +25 c 4.8 5.0 5.2 v 5.0ma i o 1.0a, p o 15w v i = 7v to 20v 4.75 5.0 5.25 regline line regulation (1) t j = +25 cv o = 7v to 25v 4.0 100 mv v i = 8v to 12v 1.6 50 regload load regulation (1) t j = +25 ci o = 5.0ma to1.5a 9 100 mv i o = 250ma to 750ma 4 50 i q quiescent current t j = +25 c 5.0 8.0 ma ? i q quiescent current change i o = 5ma to 1.0a 0.03 0.5 ma v i = 7v to 25v 0.3 1.3 ? v o / ? t output voltage drift (2) i o = 5ma -0.8 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c42 v/v o rr ripple rejection (2) f = 120hz, v o = 8v to 18v 62 73 db v drop dropout voltage i o = 1a, t j = +25 c2v r o output resistance (2) f = 1khz 15 m ? i sc short circuit current v i = 35v, t a = +25 c 230 ma i pk peak current (2) t j = +25 c 2.2 a
4 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7806e) (continued) refer to test circuit, 0? < t j < 125?, i o = 500ma, v i = 11v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 3. load and line regulation are speci?d at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 4. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7806e/er unit min. typ. max. v o output voltage t j = +25 c 5.75 6.0 6.25 v 5.0ma i o 1.0a, p o 15w v i = 8.0v to 21v 5.7 6.0 6.3 regline line regulation (3) t j = +25 cv i = 8v to 25v 5 120 mv v i = 9v to 13v 1.5 60 regload load regulation (3) t j = +25 ci o = 5ma to 1.5a 9 120 mv i o = 250ma to 750ma 3 60 i q quiescent current t j = +25 c 5.0 8.0 ma ? i q quiescent current change i o = 5ma to 1a 0.5 ma v i = 8v to 25v 1.3 ? v o / ? t output voltage drift (4) i o = 5ma -0.8 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c4 5 v/vo rr ripple rejection (4) f = 120hz v i = 9v to 19v 59 75 db v drop dropout voltage i o = 1a, t j = +25 c 2 v r o output resistance (4) f = 1khz 19 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk peak current (4) t j = +25 c 2.2 a
5 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7808e/ka7808er) (continued) refer to test circuit, 0? < t j < 125?, i o = 500ma, v i = 14v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 5. load and line regulation are speci?d at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 6. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7808e/er unit min. typ. max. v o output voltage t j = +25 c 7.7 8.0 8.3 v 5.0ma i o 1.0a, p o 15w v i = 10.5v to 23v 7.6 8.0 8.4 regline line regulation (5) t j = +25 cv i = 10.5v to 25v 5.0 160 mv v i = 11.5v to 17v 2.0 80 regload load regulation (5) t j = +25 ci o = 5.0ma to 1.5a 10 160 mv i o = 250ma to 750ma 5.0 80 i q quiescent current t j = +25 c 5.0 8.0 ma ? i q quiescent current change i o = 5ma to 1.0a 0.05 0.5 ma v i = 10.5a to 25v 0.5 1.0 ? v o / ? t output voltage drift (6) i o = 5ma -0.8 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c5 2 v/vo rr ripple rejection (6) f = 120hz, v i = 11.5v to 21.5v 56 73 db v drop dropout voltage i o = 1a, t j = +25 c 2 v r o output resistance (6) f = 1khz 17 m ? i sc short circuit current v i = 35v, t a = +25 c 230 ma i pk peak current (6) t j = +25 c 2.2 a
6 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7809e/ka7809er) (continued) refer to test circuit, 0? < t j < 125?, i o = 500ma, v i = 15v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 7. load and line regulation are speci?d at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 8. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7809e/er unit min. typ. max. v o output voltage t j = +25 c 8.65 9 9.35 v 5.0ma i o 1.0a, p o 15w v i = 11.5v to 24v 8.6 9 9.4 regline line regulation (7) t j = +25 cv i = 11.5v to 25v 6 180 mv v i = 12v to 17v 2 90 regload load regulation (7) t j = +25 ci o = 5ma to 1.5a 12 180 mv i o = 250ma to 750ma 4 90 i q quiescent current t j = +25 c 5.0 8.0 ma ? i q quiescent current change i o = 5ma to 1.0a 0.5 ma v i = 11.5v to 26v 1.3 ? v o / ? t output voltage drift (8) i o = 5ma -1 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c5 8 v/vo rr ripple rejection (8) f = 120hz v i = 13v to 23v 56 71 db v drop dropout voltage i o = 1a, t j = +25 c 2 v r o output resistance (8) f = 1khz 17 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk peak current (8) t j = +25 c 2.2 a
7 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7810e) (continued) refer to test circuit, 0? < t j < 125?, i o = 500ma, v i = 16v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 9. load and line regulation are speci?d at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 10. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7810e unit min. typ. max. v o output voltage t j = +25 c 9.6 10.0 10.4 v 5ma i o 1a, p o 15w v i = 12.5v to 25v 9.5 10.0 10.5 regline line regulation (9) t j = +25 cv i = 12.5v to 25v 10.0 200 mv v i = 13v to 25v 3.0 100 regload load regulation (9) t j = +25 ci o = 5ma to 1.5a 12.0 200 mv i o = 250ma to 750ma 4.0 400 i q quiescent current t j = +25 c 5.1 8.0 ma ? i q quiescent current change i o = 5ma to 1a 0.5 ma v i = 12.5v to 29v 1.0 ? v o / ? t output voltage drift (10) i o = 5ma -1.0 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c 58.0 v/vo rr ripple rejection (10) f = 120hz v o = 13v to 23v 56.0 71.0 db v drop dropout voltage i o = 1a, t j = +25 c 2.0 v r o output resistance (10) f = 1khz 17.0 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk peak current (10) t j = +25 c 2.2 a
8 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7812e/ka7812er) (continued) refer to test circuit, 0? < t j < 125?, i o = 500ma, v i = 19v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 11. load and line regulation are speci?d at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 12. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7812e/er unit min. typ. max. v o output voltage t j = +25 c 11.5 12 12.5 v 5.0ma i o 1.0a, p o 15w v i = 14.5v to 27v 11.4 12 12.6 regline line regulation (11) t j = +25 cv i = 14.5v to 30v 10 240 mv v i = 16v to 22v 3.0 120 regload load regulation (11) t j = +25 ci o = 5ma to 1.5a 11 240 mv i o = 250ma to 750ma 5.0 120 i q quiescent current t j = +25 c 5.1 8.0 ma i q quiescent current change i o = 5ma to 1.0a 0.1 0.5 ma v i = 14.5v to 30v 0.5 1.0 v o / t output voltage drift (12) i o = 5ma -1 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c7 6 v/vo rr ripple rejection (12) f = 120hz v i = 15v to 25v 55 71 db v drop dropout voltage i o = 1a, t j = +25 c 2 v r o output resistance (12) f = 1khz 18 m i sc short circuit current v i = 35v, t a = +25 c 230 ma i pk peak current (12) t j = +25 c 2.2 a
9 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7815e) (continued) refer to test circuit, 0? < t j < 125?, i o = 500ma, v i = 23v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 13. load and line regulation are speci?d at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 14. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7815e unit min. typ. max. v o output voltage t j = +25 c 14.4 15 15.6 v 5.0ma i o 1.0a, p o 15w v i = 17.5v to 30v 14.25 15 15.75 regline line regulation (13) t j = +25 cv i = 17.5v to 30v 11 300 mv v i = 20v to 26v 3 150 regload load regulation (13) t j = +25 ci o = 5ma to 1.5a 12 300 mv i o = 250ma to 750ma 4 150 i q quiescent current t j = +25 c 5.2 8.0 ma ? i q quiescent current change i o = 5ma to 1.0a 0.5 ma v i = 17.5v to 30v 1.0 ? v o / ? t output voltage drift (14) i o = 5ma -1 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c9 0 v/vo rr ripple rejection (14) f = 120hz v i = 18.5v to 28.5v 54 70 db v drop dropout voltage i o = 1a, t j = +25 c 2 v r o output resistance (14) f = 1khz 19 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk peak current (14) t j = +25 c 2.2 a
10 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7818e) (continued) refer to test circuit, 0? < t j < 125?, i o = 500ma, v i = 27v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 15. load and line regulation are speci?d at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 16. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7818e unit min. typ. max. v o output voltage t j = +25 c 17.3 18 18.7 v 5.0ma i o 1.0a, p o 15w v i = 21v to 33v 17.1 18 18.9 regline line regulation (15) t j = +25 cv i = 21v to 33v 15 360 mv v i = 24v to 30v 5 180 regload load regulation (15) t j = +25 ci o = 5ma to 1.5a 15 360 mv i o = 250ma to 750ma 5.0 180 i q quiescent current t j = +25 c 5.2 8.0 ma ? i q quiescent current change i o = 5ma to 1.0a 0.5 ma v i = 21v to 33v 1 ? v o / ? t output voltage drift (16) i o = 5ma -1 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c 110 v/vo rr ripple rejection (16) f = 120hz v i = 22v to 32v 53 69 db v drop dropout voltage i o = 1a, t j = +25 c 2 v r o output resistance (16) f = 1khz 22 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk peak current (16) t j = +25 c 2.2 a
11 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7824e) (continued) refer to test circuit, 0? < t j < 125?, i o = 500ma, v i = 33v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 17. load and line regulation are speci?d at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 18. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7824e unit min. typ. max. v o output voltage t j = +25 c2 3 2 4 2 5 v 5.0ma i o 1.0a, p o 15w v i = 27v to 38v 22.8 24 25.25 regline line regulation (17) t j = +25 cv i = 27v to 38v 17 480 mv v i = 30v to 36v 6 240 regload load regulation (17) t j = +25 ci o = 5ma to 1.5a 15 480 mv i o = 250ma to 750ma 5.0 240 i q quiescent current t j = +25 c 5.2 8.0 ma ? i q quiescent current change i o = 5ma to 1.0a 0.1 0.5 ma v i = 27v to 38v 0.5 1 ? v o / ? t output voltage drift (18) i o = 5ma -1.5 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c6 0 v/vo rr ripple rejection (18) f = 120hz v i = 28v to 38v 50 67 db v drop dropout voltage i o = 1a, t j = +25 c 2 v r o output resistance (18) f = 1khz 28 m ? i sc short circuit current v i = 35v, t a = +25 c 230 ma i pk peak current (18) t j = +25 c 2.2 a
12 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7805ae) (continued) refer to the test circuits. 0? < t j < +125?, i o = 1a, v i = 10v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 19. load and line regulation are speci?d at constant junction temperature. change in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 20. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7805ae unit min. typ. max. v o output voltage t j = +25 c 4.9 5 5.1 v i o = 5ma to 1a, p o 15w v i = 7.5v to 20v 4.8 5 5.2 regline line regulation (19) v i = 7.5v to 25v i o = 500ma ?50 mv v i = 8v to 12v 3 50 t j = +25 cv i = 7.3v to 20v 5 50 v i = 8v to 12v 1.5 25 regload load regulation (19) t j = +25 c i o = 5ma to 1.5a ? 100 mv i o = 5ma to 1a 9 100 i o = 250ma to 750ma 4 50 i q quiescent current t j = +25 c 5.0 6.0 ma ? i q quiescent current change i o = 5ma to 1a 0.5 ma v i = 8 v to 25v, i o = 500ma 0.8 v i = 7.5v to 20v, t j = +25 c 0.8 ? v/ ? t output voltage drift (20) i o = 5ma -0.8 mv/ c v n output noise voltage f = 10hz to 100khz t a = +25 c ?0 v/vo rr ripple rejection (20) f = 120hz, i o = 500ma v i = 8v to 18v ?8 db v drop dropout voltage i o = 1a, t j = +25 c2v r o output resistance (20) f = 1khz 17 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk peak current (20) t j = +25 c 2.2 a
13 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7809ae) (continued) refer to the test circuits. 0? < t j < +125?, i o = 1a, v i = 15v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 21. load and line regulation are speci?d at constant junction temperature. change in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 22. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7809ae unit min. typ. max. v o output voltage t j = +25 c 8.82 9.0 9.18 v i o = 5ma to 1a, p o 15w v i = 11.2v to 24v 8.65 9.0 9.35 regline line regulation (21) v i = 11.7v to 25v, i o = 500ma 6 90 mv v i = 12.5v to 19v 4 45 t j = +25 c v i = 11.5v to 24v 6 90 v i = 12.5v to 19v 2 45 regload load regulation (21) t j = +25 c, i o = 5ma to 1.0a 12 100 mv i o = 5ma to 1.0a 12 100 i o = 250ma to 750ma 5 50 i q quiescent current t j = +25 c 5.0 6.0 ma ? i q quiescent current change v i = 11.7v to 25v, t j = +25 c 0.8 ma v i = 12v to 25v, i o = 500ma 0.8 i o = 5ma to 1.0a 0.5 ? v/ ? t output voltage drift (22) i o = 5ma -1.0 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c 10 v/vo rr ripple rejection (22) f = 120hz, i o = 500ma v i = 12v to 22v ?2 db v drop dropout voltage i o = 1a, t j = +25 c 2.0 v r o output resistance (22) f = 1khz 17 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk peak current (22) t j = +25 c 2.2 a
14 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7810ae) (continued) refer to the test circuits. 0? < t j < +125?, i o = 1a, v i = 16v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 23. load and line regulation are speci?d at constant junction temperature. change in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 24. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7810ae unit min. typ. max. v o output voltage t j = +25 c 9.8 10.0 10.2 v i o = 5ma to 1a, p o 15w v i = 12.8v to 25v 9.6 10.0 10.4 regline line regulation (23) v i = 12.8v to 26v, i o = 500ma 8.0 100 mv v i = 13v to 20v 4.0 50.0 t j = +25 c v i = 12.5v to 25v 8.0 100 v i = 13v to 20v 3.0 50.0 regload load regulation (23) t j = +25 c, i o = 5ma to 1.5a 12.0 100 mv i o = 5ma to 1ma 12.0 100 i o = 250ma to 750ma 5.0 50.0 i q quiescent current t j = +25 c 5.0 6.0 ma ? i q quiescent current change i o = 5ma to 1a 0.5 ma v i = 12.8v to 25v, i o = 500ma 0.8 v i = 13v to 26v, t j = +25 c 0.5 ? v o / ? t output voltage drift (24) i o = 5ma -1.0 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c 10.0 v/vo rr ripple rejection (24) f = 120hz, i o = 500ma v i = 14v to 24v 62.0 db v drop dropout voltage i o = 1a, t j = +25 c 2.0 v r o output resistance (24) f = 1khz 17.0 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk peak current (24) t j = +25 c 2.2 a
15 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7812ae) (continued) refer to the test circuits. 0? < t j < +125?, i o = 1a, v i = 19v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 25.load and line regulation are speci?d at constant junction temperature. change in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 26.these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7812ae unit min. typ. max. v o output voltage t j = +25 c 11.75 12 12.25 v i o = 5ma to 1a, p o 15w v i = 14.8v to 27v 11.5 12 12.5 regline line regulation (25) v i = 14.8v to 30v, i o = 500ma 10 120 mv v i = 16v to 22v 4 120 t j = +25 cv i = 14.5v to 27v 10 120 v i = 16v to 22v 3 60 regload load regulation (25) t j = +25 c, i o = 5ma to 1.5a 12 100 mv i o = 5ma to 1.0a 12 100 i o = 250ma to 750ma 5 50 i q quiescent current t j = +25 c 5.1 6.0 ma ? i q quiescent current change v i = 15v to 30v, t j = +25 c 0.8 ma v i = 14v to 27v, i o = 500ma 0.8 i o = 5ma to 1.0a 0.5 ? v/ ? t output voltage drift (26) i o = 5ma -1.0 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c 10 v/vo rr ripple rejection (26) f = 120hz, i o = 500ma v i = 14v to 24v ?0 db v drop dropout voltage i o = 1a, t j = +25 c 2.0 v r o output resistance (26) f = 1khz 18 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk peak current (26) t j = +25 c 2.2 a
16 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7815ae) (continued) refer to the test circuits. 0? < t j < +125?, i o = 1a, v i = 23v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 27. load and line regulation are speci?d at constant junction temperature. change in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 28.these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7815ae unit min. typ. max. v o output voltage t j = +25 c 14.7 15 15.3 v i o = 5ma to 1a, p o 15w v i = 17.7v to 30v 14.4 15 15.6 regline line regulation (27) v i = 17.9v to 30v, i o = 500ma 10 150 mv v i = 20v to 26v 5 150 t j = +25 cv i = 17.5v to 30v 11 150 v i = 20v to 26v 3 75 regload load regulation (27) t j = +25 c, i o = 5ma to 1.5a 12 100 mv i o = 5ma to 1.0a 12 100 i o = 250ma to 750ma 5 50 i q quiescent current t j = +25 c 5.2 6.0 ma ? i q quiescent current change v i = 17.5v to 30v, t j = +25 c 0.8 ma v i = 17.5v to 30v, i o = 500ma 0.8 i o = 5ma to 1.0a 0.5 ? v/ ? t output voltage drift (28) i o = 5ma -1.0 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c 10 v/vo rr ripple rejection (28) f = 120hz, i o = 500ma v i = 18.5v to 28.5v ?8 db v drop dropout voltage i o = 1a, t j = +25 c 2.0 v r o output resistance (28) f = 1khz 19 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk peak current (28) t j = +25 c 2.2 a
17 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7824ae) (continued) refer to the test circuits. 0? < t j < +125?, i o = 1a, v i = 33v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 29.load and line regulation are speci?d at constant junction temperature. change in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. 30.these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7824ae unit min. typ. max. v o output voltage t j = +25 c 23.5 24 24.5 v i o = 5ma to 1a, p o 15w v i = 27.3v to 38v 23 24 25 regline line regulation (29) v i = 27v to 38v, i o = 500ma 18 240 mv v i = 21v to 33v 6 240 t j = +25 cv i = 26.7v to 38v 18 240 v i = 30v to 36v 6 120 regload load regulation (29) t j = +25 c, i o = 5ma to 1.5a 15 100 mv i o = 5ma to 1.0a 15 100 i o = 250ma to 750ma 7 50 i q quiescent current t j = +25 c 5.2 6.0 ma ? i q quiescent current change v i = 27.3v to 38v, t j = +25 c 0.8 ma v i = 27.3v to 38v, i o = 500ma 0.8 i o = 5ma to 1.0a 0.5 ? v/ ? t output voltage drift (30) i o = 5ma -1.5 mv/ c v n output noise voltage f = 10hz to 100khz, t a = 25 c10 v/vo rr ripple rejection (30) f = 120hz, i o = 500ma v i = 28v to 38v ?4 db v drop dropout voltage i o = 1a, t j = +25 c 2.0 v r o output resistance (30) f = 1khz 20 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk peak current (30) t j = +25 c 2.2 a
18 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator typical performance characteristics figure 3. quiescent curren t figure 4 . peak output current figure 5. output voltage figure 6. quiescent current 6 5.75 5.5 5.25 5 4.75 4.5 v i = 10v v o = 5v i o = 5ma -25-50 0 0 25 50 75 100 125 quiescent current (ma) junction temperature (?) 3 2.5 2 1.5 1 .5 0 t j = 25 c v o = 100mv 51015202 53035 output current (a) input-output differential (v) 1.02 1.01 1 .99 .98 v i ?v o = 5v i o = 5ma -25-50 0 25 50 75 100 125 normalized output voltage (v) junction temperature (?) 7 6.5 6 5.5 5 4.5 4 t j = 25 c v o = 5v i o = 10ma 10 51520253035 quiescent current (ma) input voltage (v)
19 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator typical applications figure 7. dc parameters figure 8. load regulation figure 9. ripple rejection 0.1 f c o c i 0.33 f output input ka78xxe 1 3 2 ka78xxe 3 2 1 0.33? 270pf 100 ? 30? r l 2n6121 or eq output input v o 0v v o ka78xxe output input 5.1 ? 0.33? 2 3 1 r l 470? 120hz +
20 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator figure 10. fixed output regulator figure 11. constant current regulator notes : 1. to specify an output voltage. substitute voltage value for "xx." a common ground is required between the input and the output voltage. the input voltage must remain typically 2.0v above the output voltage even during the low point on the input ripple voltage. 2. c i is required if regulator is located an appreciable distance from power supply ?ter. 3. c o improves stability and transient response. figure 12. circuit for increasing output voltage 0.1 f c o c i 0.33 f output input ka78xxe 1 3 2 0.1 f c o c i 0.33 f output input ka78xxe 1 3 2 vxx r1 r l i q i o i o = r 1 + i q vxx 0.1 f c o c i 0.33 f output input ka78xxe 1 3 2 vxx r1 r2 i q i ri 51q v o = v xx (1 + r 2 / r 1 ) + i q r 2
21 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator figure 13. adjustable output regulator (7 to 30v) figure 14. high current voltage regulator figure 15. high output current with short circuit protection ka741 - + 2 3 6 4 2 3 1 0.33 f c i input output 0.1 f c o ka7805e 10k ? i ri 5 i q v o = v xx (1 + r 2 / r 1 ) + i q r 2 3 2 1 ka78xxe output input r1 3 ? 0.33? ireg 0.1? i o vo iq1 v i i o = i reg + b q1 (i reg ? beq1 /r 1 ) ka78xxe output vo 0.1? 0.33? r1 3 ? 3 2 1 q1 input v i q2 q1 = tip42 q2 = tip42 rsc = i sc v beq2 r1 = v beq1 i reg ? q1 b q1 /
22 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator figure 16. tracking voltage regulator figure 17. split power supply ( 15v-1a) ka78xxe ka741 0.1? 0.33? 1 2 3 7 2 6 4 3 4.7k ? 4.7k ? tip42 common common v o -v o v i -v in _ + 3 1 2 1 3 2 0.33? 0.1? 2.2? 1? + + 1n4001 1n4001 +15v -15v +20v -20v ka7815e ka7915e
23 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator figure 18. negative output voltage circuit figure 19. switching regulator ka78xxe output input + 1 2 0.1? 3 ka78xxe 1mh 3 1 2 2000? output input d45h11 0.33uf 470 ? 4.7 ? 10uf 0.5 ? z1 + +
24 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator mechanical dimensions dimensions in millimeters 4.50 0.20 9.90 0.20 1.52 0.10 0.80 0.10 2.40 0.20 10.00 0.20 1.27 0.10 ?.60 0.10 (8.70) 2.80 0.10 15.90 0.20 10.08 0.30 18.95max. (1.70) (3.70) (3.00) (1.46) (1.00) (45 ) 9.20 0.20 13.08 0.20 1.30 0.10 1.30 +0.10 ?.05 0.50 +0.10 ?.05 2.54typ [2.54 0.20 ] 2.54typ [2.54 0.20 ] to-220 [ dual gauge ]
ka78xxe/ka78xxae ? 3-terminal 1a positive voltage regulator mechanical dimensions (continued) dimensions in millimeters d-pak 25 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.5
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