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?006 fairchild semiconductor corporation 1 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator may 2006 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 description the ka78xxe/ka78xxae series of three-terminal posi- tive regulator are available in the to-220/d-pak package and with several ?ed output voltages, making them use- ful in a wide range of applications. each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially inde- structible. if adequate heat sinking is provided, they can deliver over 1a output current. although designed pri- marily as ?ed voltage regulators, these devices can be used with external components to obtain adjustable volt- ages and currents. ordering information pa rt number output voltage tolerance package operating temperature ka7805e / ka7806e 4% to-220 0 to +125 c ka7808e / ka7809e ka7810e ka7812e / ka7815e ka7818e / ka7824e ka7805ae / ka7806ae 2% ka7808ae / ka7809ae ka7810ae ka7812ae/ka7815ae ka7818ae/ka7824ae ka7805er / ka7806er 4% d-pak ka7808er / ka7809er ka7812er
2 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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
3 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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 p eak current (2) t j = +25 c 2.2 a
4 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7806e/ka7806er) (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 c45 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 c2v 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 p eak current (4) t j = +25 c 2.2 a
5 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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 c52 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 c2v 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 p eak current (6) t j = +25 c 2.2 a
6 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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 c58 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 c2v 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 p eak current (8) t j = +25 c 2.2 a
7 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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 p eak current (10) t j = +25 c 2.2 a
8 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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 c76 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 c2v 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 p eak current (12) t j = +25 c 2.2 a
9 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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 c90 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 c2v 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 p eak current (14) t j = +25 c 2.2 a
10 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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 p eak current (16) t j = +25 c 2.2 a
11 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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 c232425v 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 c60 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 c2v 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 p eak current (18) t j = +25 c 2.2 a
12 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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 p eak current (20) t j = +25 c 2.2 a
13 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7806ae) (continued) refer to the test circuits. 0? < t j < +125?, i o = 1a, v i = 11v, 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 ka7806ae unit min. typ. max. v o output voltage t j = +25 c 5.58 6 6.12 v i o = 5ma to 1a, p o 15w v i = 8.6v to 21v 5.76 6 6.24 regline line regulation (21) v i = 8.6v to 25v, i o = 500ma 5 60 mv v i = 9v to 13v 3 60 t j = +25 cv i = 8.3v to 21v 5 60 v i = 9v to 13v 1.5 30 regload load regulation (21) t j = +25 c, i o = 5ma to 1.5a 9 100 mv i o = 5ma to 1a 9 100 i o = 250ma to 750ma 5.0 50 i q quiescent current t j = +25 c 4.3 6.0 ma ? i q quiescent current change i o = 5ma to 1a 0.5 ma v i = 9v to 25v, i o = 500ma 0.8 v i = 8.5v to 21v, t j = +25 c 0.8 ? v/ ? t output voltage drift (22) i o = 5ma -0.8 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c10 v/vo rr ripple rejection (22) f = 120hz, i o = 500ma v i = 9v to 19v ?5 db v drop dropout voltage i o = 1a, t j = +25 c2v 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 p eak current (22) t j = +25 c 2.2 a
14 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7808ae) (continued) refer to the test circuits. 0? < t j < +125?, i o = 1a, v i = 14v, 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 ka7808ae unit min. typ. max. v o output voltage t j = +25 c 7.84 8 8.16 v i o = 5ma to 1a, p o 15w v i = 10.6v to 23v 7.7 8 8.3 regline line regulation (23) v i = 10.6v to 25v, i o = 500ma 6 80 mv v i = 11v to 17v 3 80 t j = +25 cv i = 10.4v to 23v 6 80 v i = 11v to 17v 2 40 regload load regulation (23) t j = +25 c, i o = 5ma to 1.5a 12 100 mv i o = 5ma to 1a 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 i o = 5ma to 1a 0.5 ma v i = 11v to 25v, i o = 500ma 0.8 v i = 10.6v to 23v, t j = +25 c 0.8 ? v/ ? t output voltage drift (24) i o = 5ma -0.8 mv/ c v n output noise voltage f = 10hz to 100khz, t a = +25 c 10 v/vo rr ripple rejection (24) f = 120hz, i o = 500ma v i = 11.5v to 21.5v ?2 db v drop dropout voltage i o = 1a, t j = +25 c2v r o output resistance (24) f = 1khz 18 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk p eak current (24) t j = +25 c 2.2 a
15 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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: 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 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 (25) 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 (25) 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 (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 = 12v to 22v ?2 db v drop dropout voltage i o = 1a, t j = +25 c 2.0 v r o output resistance (26) f = 1khz 17 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk p eak current (26) t j = +25 c 2.2 a
16 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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: 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 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 (27) 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 (27) 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 (28) 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 (28) 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 (28) f = 1khz 17.0 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk p eak current (28) t j = +25 c 2.2 a
17 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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: 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 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 (29) 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 (29) 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 (30) 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 (30) 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 (30) f = 1khz 18 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk p eak current (30) t j = +25 c 2.2 a
18 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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: 31. 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. 32. 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 (31) 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 (31) 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 (32) 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 (32) 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 (32) f = 1khz 19 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk p eak current (32) t j = +25 c 2.2 a
19 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator electrical characteristics (ka7818ae) (continued) refer to the test circuits. 0? < t j < +125?, i o = 1a, v i = 27v, c i = 0.33?, c o = 0.1?, unless otherwise speci?d. notes: 33. 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. 34. these parameters, although guaranteed, are not 100% tested in production. symbol parameter conditions ka7818ae unit min. typ. max. v o output voltage t j = +25 c 17.64 18 18.36 v i o = 5ma to 1a, p o 15w v i = 21v to 33v 17.3 18 18.7 regline line regulation (33) v i = 21v to 33v, i o = 500ma 15 180 mv v i = 21v to 33v 5 180 t j = +25 cv i = 20.6v to 33v 15 180 v i = 24v to 30v 5 90 regload load regulation (33) 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 = 21v to 33v, t j = +25 c 0.8 ma v i = 21v to 33v, i o = 500ma 0.8 i o = 5ma to 1.0a 0.5 ? v/ ? t output voltage drift (34) 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 (34) f = 120hz, i o = 500ma v i = 22v to 32v ?7 db v drop dropout voltage i o = 1a, t j = +25 c 2.0 v r o output resistance (34) f = 1khz 19 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk p eak current (34) t j = +25 c 2.2 a
20 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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: 35. 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. 36. 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 (35) 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 (35) 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 (36) 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 (36) 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 (36) f = 1khz 20 m ? i sc short circuit current v i = 35v, t a = +25 c 250 ma i pk p eak current (36) t j = +25 c 2.2 a
21 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator t ypical performance characteristics figure 3. quiescent current figure 4. output voltage figure 5. peak output current 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)
22 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator t ypical 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 +
23 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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
24 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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
25 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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
26 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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 + +
27 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 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 ] t o-220
28 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator mechanical dimensions (continued) dimensions in millimeters 6.60 0.20 2.30 0.10 0.50 0.10 5.34 0.30 0.70 0.20 0.60 0.20 0.80 0.20 9.50 0.30 6.10 0.20 2.70 0.20 9.50 0.30 6.10 0.20 2.70 0.20 min0.55 0.76 0.10 0.50 0.10 1.02 0.20 2.30 0.20 6.60 0.20 0.76 0.10 (5.34) (1.50) (2xr0.25) (5.04) 0.89 0.10 (0.10) (3.05) (1.00) (0.90) (0.70) 0.91 0.10 2.30typ [2.30 0.20] 2.30typ [2.30 0.20] max0.96 (4.34) (0.50) (0.50) d-pak
29 www.fairchildsemi.com ka78xxe/ka78xxae rev. 1.0.1 ka78xxe/ka78xxae 3-terminal 1a positive voltage regulator rev. i19 trademarks t he following are registered and unregistered trademarks fairchild semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. disclaimer fairchild semiconductor reserves the right to make changes without further notice to any pr oducts herein to improve reliability, function or design. fairchild does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others. these sp ec if ic at io ns do not expand the terms of fairchild?s worldwide terms and conditions, sp ec if ic a lly the warranty therein, which covers these products. life support policy fairchild?s products are not authorized for use as critical components in life support devices or systems without the express written approval of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 2. a critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. product status definitions definition of terms acex activearray bottomless bu ild it now coolfet cross volt dome ecos park e 2 cmos en signa fact fast fastr fps frfet gl obaloptoisolator gto hisec i 2 c i-lo im plieddisconnect in tellimax isoplanar littlefet microc oupler mi crofet mi cropak microwire m sx msxpro ocx ocxpro optologic optoplanar pacman pop po wer247 poweredge powersaver powertrench qfet qs qt optoel ectronics quiet series rapidconfigure rapidconnect serdes scalarpump silent switcher smart start spm stealth superfet supersot-3 supersot-6 supersot-8 sync fet tcm ti nylogic tinyopto tr utranslation uhc unifet ultrafet vcx wire fact quiet series ac ross the board. around the world. t he power franchise pr ogrammable active droop datasheet identification product status definition ad vance information formative or in design th is datasheet contains the design specifications for product development. specifications may change in any manner without notice. pr eliminary first production this datasheet contains preliminary data, and supplementary data will be published at a later date. fa ir child semiconductor reserves the right to make changes at any time without notice in order to improve design. no identification needed full production this datasheet contains final specifications. fairchild semiconductor reserves the right to make changes at any time without notice in order to improve design. ob solete not in production this datasheet contains specifications on a product t hat has been discontinued by fairchild semiconductor. t he datasheet is printed for reference information only.
careers | sitema go datasheets, samples, buy technical information applications design center support company investors my f a home >> find products >> product status/pricing/packaging ka7812e 3-terminal 1a positive voltage regulator general description back to top features back to top contents ? general description ? features ? product status/pricing/packaging ? order samples ? qualification support the ka78xxe/ka78xxae series of three-terminal po sitive regulator are available in the to-220/d-pak packa ge and with severa l fixed output voltages, making them useful in a wide range of applications. each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. if adequate heat sinking is provided, they can deliver over 1a output current. although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. z output current up to 1a z output voltages of 5, 6, 8, 9, 12, 15, 18, 24v z thermal overload protection z short circuit protection z output transistor safe operating area protection datasheet download this datasheet e - mail this datasheet this page print version product product status pb-free status pricing* package type leads packing method package marking convention** related links request samples how to order products product change notices (pcns) support sales support quality and reliability design cente r pa g e 1 of 3 product folder - fairchild p/n ka7812e - 3-terminal 1a positive volta g e re g ulato r 17-au g -2007 mhtml:file://c:\temp\ka7812ertf.mht
back to top qualification support click on a product for detailed qualification data back to top ka7812e full production $0.386 to-220 3 bulk line 1: $y (fairchild logo) ka7812ertf full production $0.454 to - 252(dpak) 2 tape reel line 1: ka78 KA7812ERTM full production $0.454 to - 252(dpak) 2 tape reel line 1: ka78 line 2: 12r line 3: e&e&3 ka7812etstu full production $0.386 to-220 3 rail n/a ka7812etu full production $0.386 to-220 3 rail line 1: $y (fairchild logo) * fairchild 1,000 piece budgetary pricing ** a sample button will appear if the part is available through fa irchild's on-line samples program. if there is no sample butt on, please contact a fairchild distributo r to obtain samples indicates product with pb -free second-level interconne ct. for more information click here. package marking information for product ka7812e is available. click here for more information . product ka7812e ka7812ertf KA7812ERTM ka7812etstu ka7812etu pa g e 2 of 3 product folder - fairchild p/n ka7812e - 3-terminal 1a positive volta g e re g ulato r 17-au g -2007 mhtml:file://c:\temp\ka7812ertf.mht
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