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1/29 february 2003 n output current to 1.5a n output voltages of 5; 5.2; 6; 8; 8.5; 9; 12; 15; 18; 24v n thermal overload protection n short circuit protection n output transition soa protection description the l7800 series of three-terminal positive regulators is available in to-220, to-220fp, to-3 and d 2 pak packages and several fixed output voltages, making it useful in a wide range of applications. these regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. each type employs internal current limiting, thermal shut-down and safe 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 voltage and currents. l7800 series positive voltage regulators schematic diagram to-220 d 2 pak to-220fp to-3
l7800 series 2/29 absolute maximum ratings absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these condition is not implied. thermal data schematic diagram symbol parameter2 value unit v i dc input voltage for v o = 5 to 18v 35 v for v o = 20, 24v 40 i o output current internally limited p tot power dissipation internally limited t stg storage temperature range -65 to 150 c t op operating junction temperature range for l7800 -55 to 150 c for l7800c 0 to 150 symbol parameter d 2 pak to-220 to-220fp to-3 unit r thj-case thermal resistance junction-case max 3554c/w r thj-amb thermal resistance junction-ambient max 62.5 50 60 35 c/w
l7800 series 3/29 connection diagram (top view) ordering codes (*) available in tape & reel with the suffix "-tr". type to-220 d 2 pak (*) to-220fp to-3 output voltage l7805 l7805t 5 v l7805c l7805cv l7805cd2t l7805cp l7805ct 5 v l7852c l7852cv l7852cd2t l7852cp l7852ct 5.2 v l7806 l7806t 6 v l7806c l7806cv l7806cd2t l7806cp L7806CT 6 v l7808 l7808t 8 v l7808c l7808cv l7808cd2t l7808cp l7808ct 8 v l7885c l7885cv l7885cd2t l7885cp l7885ct 8.5 v l7809c l7809cv l7809cd2t l7809cp l7809ct 9 v l7812 l7812t 12 v l7812c l7812cv l7812cd2t l7812cp l7812ct 12 v l7815 l7815t 15 v l7815c l7815cv l7815cd2t l7815cp l7815ct 15 v l7818 l7818t 18 v l7818c l7818cv l7818cd2t l7818cp l7818ct 18 v l7820 l7820t 20 v l7820c l7820cv l7820cd2t l7820cp l7820ct 20 v l7824 l7824t 24 v l7824c l7824cv l7824cd2t l7824cp l7824ct 24 v to-220 to-220fp to-3 d 2 pak
l7800 series 4/29 application circuits test circuits figure 1 : dc parameter figure 2 : load regulation
l7800 series 5/29 figure 3 : ripple rejection electrical characteristics of l7805 (refer to the test circuits, t j = -55 to 150c, v i = 10v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 4.8 5 5.2 v v o output voltage i o =5mato1a p o 15w v i = 8 to 20 v 4.65 5 5.35 v d v o (*) line regulation v i =7to25v t j = 25c 3 50 mv v i =8to12v t j = 25c 1 25 d v o (*) load regulation i o =5mato1.5a t j = 25c 100 mv i o = 250 to 750 ma t j = 25c 25 i d quiescent current t j = 25c 6 ma d i d quiescent current change i o =5mato1a 0.5 ma v i = 8 to 25 v 0.8 d v o / d t output voltage drift i o = 5 ma 0.6 mv/c en output noise voltage b =10hz to 100khz t j = 25c 40 m v/v o svr supply voltage rejection v i = 8 to 18 v f = 120hz 68 db v d dropout voltage i o =1a t j = 25c 2 2.5 v r o output resistance f = 1 khz 17 m w i sc short circuit current v i =35v t j = 25c 0.75 1.2 a i scp short circuit peak current t j = 25c 1.3 2.2 3.3 a
l7800 series 6/29 electrical characteristics of l7806 (refer to the test circuits, t j = -55 to 150c, v i = 11v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. electrical characteristics of l7808 (refer to the test circuits, t j = -55 to 150c, v i = 14v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 5.75 6 6.25 v v o output voltage i o =5mato1a p o 15w v i = 9 to 21 v 5.65 6 6.35 v d v o (*) line regulation v i =8to25v t j = 25c 60 mv v i =9to13v t j = 25c 30 d v o (*) load regulation i o =5mato1.5a t j = 25c 100 mv i o = 250 to 750 ma t j = 25c 30 i d quiescent current t j = 25c 6 ma d i d quiescent current change i o =5mato1a 0.5 ma v i = 9 to 25 v 0.8 d v o / d t output voltage drift i o = 5 ma 0.7 mv/c en output noise voltage b =10hz to 100khz t j = 25c 40 m v/v o svr supply voltage rejection v i = 9 to 19 v f = 120hz 65 db v d dropout voltage i o =1a t j = 25c 2 2.5 v r o output resistance f = 1 khz 19 m w i sc short circuit current v i =35v t j = 25c 0.75 1.2 a i scp short circuit peak current t j = 25c 1.3 2.2 3.3 a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 7.7 8 8.3 v v o output voltage i o =5mato1a p o 15w v i = 11.5 to 23 v 7.6 8 8.4 v d v o (*) line regulation v i = 10.5 to 25 v t j = 25c 80 mv v i =11to17v t j = 25c 40 d v o (*) load regulation i o =5mato1.5a t j = 25c 100 mv i o = 250 to 750 ma t j = 25c 40 i d quiescent current t j = 25c 6 ma d i d quiescent current change i o =5mato1a 0.5 ma v i = 11.5 to 25 v 0.8 d v o / d t output voltage drift i o = 5 ma 1 mv/c en output noise voltage b =10hz to 100khz t j = 25c 40 m v/v o svr supply voltage rejection v i = 11.5 to 21.5 v f = 120hz 62 db v d dropout voltage i o =1a t j = 25c 2 2.5 v r o output resistance f = 1 khz 16 m w i sc short circuit current v i =35v t j = 25c 0.75 1.2 a i scp short circuit peak current t j = 25c 1.3 2.2 3.3 a
l7800 series 7/29 electrical characteristics of l7812 (refer to the test circuits, t j = -55 to 150c, v i = 19v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. electrical characteristics of l7815 (refer to the test circuits, t j = -55 to 150c, v i = 23v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 11.5 12 12.5 v v o output voltage i o =5mato1a p o 15w v i = 15.5 to 27 v 11.4 12 12.6 v d v o (*) line regulation v i = 14.5 to 30 v t j = 25c 120 mv v i =16to22v t j = 25c 60 d v o (*) load regulation i o =5mato1.5a t j = 25c 100 mv i o = 250 to 750 ma t j = 25c 60 i d quiescent current t j = 25c 6 ma d i d quiescent current change i o =5mato1a 0.5 ma v i =15to30v 0.8 d v o / d t output voltage drift i o = 5 ma 1.5 mv/c en output noise voltage b =10hz to 100khz t j = 25c 40 m v/v o svr supply voltage rejection v i = 15 to 25 v f = 120hz 61 db v d dropout voltage i o =1a t j = 25c 2 2.5 v r o output resistance f = 1 khz 18 m w i sc short circuit current v i =35v t j = 25c 0.75 1.2 a i scp short circuit peak current t j = 25c 1.3 2.2 3.3 a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 14.4 15 15.6 v v o output voltage i o =5mato1a p o 15w v i = 18.5 to 30 v 14.25 15 15.75 v d v o (*) line regulation v i = 17.5 to 30 v t j = 25c 150 mv v i =20to26v t j = 25c 75 d v o (*) load regulation i o =5mato1.5a t j = 25c 150 mv i o = 250 to 750 ma t j = 25c 75 i d quiescent current t j = 25c 6 ma d i d quiescent current change i o =5mato1a 0.5 ma v i = 18.5 to 30 v 0.8 d v o / d t output voltage drift i o = 5 ma 1.8 mv/c en output noise voltage b =10hz to 100khz t j = 25c 40 m v/v o svr supply voltage rejection v i = 18.5 to 28.5 v f = 120hz 60 db v d dropout voltage i o =1a t j = 25c 2 2.5 v r o output resistance f = 1 khz 19 m w i sc short circuit current v i =35v t j = 25c 0.75 1.2 a i scp short circuit peak current t j = 25c 1.3 2.2 3.3 a
l7800 series 8/29 electrical characteristics of l7818 (refer to the test circuits, t j = -55 to 150c, v i = 26v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. electrical characteristics of l7820 (refer to the test circuits, t j = -55 to 150c, v i = 28v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 17.3 18 18.7 v v o output voltage i o =5mato1a p o 15w v i =22to33v 17.1 18 18.9 v d v o (*) line regulation v i =21to33v t j = 25c 180 mv v i =24to30v t j = 25c 90 d v o (*) load regulation i o =5mato1.5a t j = 25c 180 mv i o = 250 to 750 ma t j = 25c 90 i d quiescent current t j = 25c 6 ma d i d quiescent current change i o =5mato1a 0.5 ma v i =22to33v 0.8 d v o / d t output voltage drift i o = 5 ma 2.3 mv/c en output noise voltage b =10hz to 100khz t j = 25c 40 m v/v o svr supply voltage rejection v i = 22 to 32 v f = 120hz 59 db v d dropout voltage i o =1a t j = 25c 2 2.5 v r o output resistance f = 1 khz 22 m w i sc short circuit current v i =35v t j = 25c 0.75 1.2 a i scp short circuit peak current t j = 25c 1.3 2.2 3.3 a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 19.2 20 20.8 v v o output voltage i o =5mato1a p o 15w v i =24to35v 19 20 21 v d v o (*) line regulation v i = 22.5 to 35 v t j = 25c 200 mv v i =26to32v t j = 25c 100 d v o (*) load regulation i o =5mato1.5a t j = 25c 200 mv i o = 250 to 750 ma t j = 25c 100 i d quiescent current t j = 25c 6 ma d i d quiescent current change i o =5mato1a 0.5 ma v i =24to35v 0.8 d v o / d t output voltage drift i o = 5 ma 2.5 mv/c en output noise voltage b =10hz to 100khz t j = 25c 40 m v/v o svr supply voltage rejection v i = 24 to 35 v f = 120hz 58 db v d dropout voltage i o =1a t j = 25c 2 2.5 v r o output resistance f = 1 khz 24 m w i sc short circuit current v i =35v t j = 25c 0.75 1.2 a i scp short circuit peak current t j = 25c 1.3 2.2 3.3 a
l7800 series 9/29 electrical characteristics of l7824 (refer to the test circuits, t j = -55 to 150c, v i = 33v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. electrical characteristics of l7805c (refer to the test circuits, t j = -55 to 150c, v i = 10v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. symbol parameter test conditions min. typ. max. unit v o output voltage t j =25c 232425 v v o output voltage i o =5mato1a p o 15w v i =28to38v 22.8 24 25.2 v d v o (*) line regulation v i =27to38v t j = 25c 240 mv v i =30to36v t j = 25c 120 d v o (*) load regulation i o =5mato1.5a t j = 25c 240 mv i o = 250 to 750 ma t j = 25c 120 i d quiescent current t j = 25c 6 ma d i d quiescent current change i o =5mato1a 0.5 ma v i =28to38v 0.8 d v o / d t output voltage drift i o = 5 ma 3 mv/c en output noise voltage b =10hz to 100khz t j = 25c 40 m v/v o svr supply voltage rejection v i = 28 to 38 v f = 120hz 56 db v d dropout voltage i o =1a t j = 25c 2 2.5 v r o output resistance f = 1 khz 28 m w i sc short circuit current v i =35v t j = 25c 0.75 1.2 a i scp short circuit peak current t j = 25c 1.3 2.2 3.3 a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 4.8 5 5.2 v v o output voltage i o =5mato1a p o 15w v i = 7 to 20 v 4.75 5 5.25 v d v o (*) line regulation v i =7to25v t j = 25c 3 100 mv v i =8to12v t j = 25c 1 50 d v o (*) load regulation i o =5mato1.5a t j = 25c 100 mv i o = 250 to 750 ma t j = 25c 50 i d quiescent current t j = 25c 8 ma d i d quiescent current change i o =5mato1a 0.5 ma v i = 7 to 25 v 0.8 d v o / d t output voltage drift i o = 5 ma -1.1 mv/c en output noise voltage b =10hz to 100khz t j = 25c 40 m v/v o svr supply voltage rejection v i = 8 to 18 v f = 120hz 62 db v d dropout voltage i o =1a t j = 25c 2 v r o output resistance f = 1 khz 17 m w i sc short circuit current v i =35v t j = 25c 0.75 a i scp short circuit peak current t j = 25c 2.2 a
l7800 series 10/29 electrical characteristics of l7852c (refer to the test circuits, t j = -55 to 150c, v i = 10v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. electrical characteristics of l7806c (refer to the test circuits, t j = -55 to 150c, v i = 11v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 5.0 5.2 5.4 v v o output voltage i o =5mato1a p o 15w v i = 8 to 20 v 4.95 5.2 5.45 v d v o (*) line regulation v i =7to25v t j = 25c 3 105 mv v i =8to12v t j = 25c 1 52 d v o (*) load regulation i o =5mato1.5a t j = 25c 105 mv i o = 250 to 750 ma t j = 25c 52 i d quiescent current t j = 25c 8 ma d i d quiescent current change i o =5mato1a 0.5 ma v i = 7 to 25 v 1.3 d v o / d t output voltage drift i o = 5 ma -1 mv/c en output noise voltage b =10hz to 100khz t j = 25c 42 m v/v o svr supply voltage rejection v i = 8 to 18 v f = 120hz 61 db v d dropout voltage i o =1a t j = 25c 2 v r o output resistance f = 1 khz 17 m w i sc short circuit current v i =35v t j = 25c 0.75 a i scp short circuit peak current t j = 25c 2.2 a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 5.75 6 6.25 v v o output voltage i o =5mato1a p o 15w v i = 8 to 21 v 5.7 6 6.3 v d v o (*) line regulation v i =8to25v t j = 25c 120 mv v i =9to13v t j = 25c 60 d v o (*) load regulation i o =5mato1.5a t j = 25c 120 mv i o = 250 to 750 ma t j = 25c 60 i d quiescent current t j = 25c 8 ma d i d quiescent current change i o =5mato1a 0.5 ma v i = 8 to 25 v 1.3 d v o / d t output voltage drift i o = 5 ma -0.8 mv/c en output noise voltage b =10hz to 100khz t j = 25c 45 m v/v o svr supply voltage rejection v i = 9 to 19 v f = 120hz 59 db v d dropout voltage i o =1a t j = 25c 2 v r o output resistance f = 1 khz 19 m w i sc short circuit current v i =35v t j = 25c 0.55 a i scp short circuit peak current t j = 25c 2.2 a
l7800 series 11/29 electrical characteristics of l7808c (refer to the test circuits, t j = -55 to 150c, v i = 14v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. electrical characteristics of l7885c (refer to the test circuits, t j = -55 to 150c, v i = 14.5v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 7.7 8 8.3 v v o output voltage i o =5mato1a p o 15w v i = 10.5 to 25 v 7.6 8 8.4 v d v o (*) line regulation v i = 10.5 to 25 v t j = 25c 160 mv v i =11to17v t j = 25c 80 d v o (*) load regulation i o =5mato1.5a t j = 25c 160 mv i o = 250 to 750 ma t j = 25c 80 i d quiescent current t j = 25c 8 ma d i d quiescent current change i o =5mato1a 0.5 ma v i = 10.5 to 25 v 1 d v o / d t output voltage drift i o = 5 ma -0.8 mv/c en output noise voltage b =10hz to 100khz t j = 25c 52 m v/v o svr supply voltage rejection v i = 11.5 to 21.5 v f = 120hz 56 db v d dropout voltage i o =1a t j = 25c 2 v r o output resistance f = 1 khz 16 m w i sc short circuit current v i =35v t j = 25c 0.45 a i scp short circuit peak current t j = 25c 2.2 a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 8.2 8.5 8.8 v v o output voltage i o =5mato1a p o 15w v i =11to26v 8.1 8.5 8.9 v d v o (*) line regulation v i =11to27v t j = 25c 160 mv v i = 11.5 to 17.5 v t j = 25c 80 d v o (*) load regulation i o =5mato1.5a t j = 25c 160 mv i o = 250 to 750 ma t j = 25c 80 i d quiescent current t j = 25c 8 ma d i d quiescent current change i o =5mato1a 0.5 ma v i =11to27v 1 d v o / d t output voltage drift i o = 5 ma -0.8 mv/c en output noise voltage b =10hz to 100khz t j = 25c 55 m v/v o svr supply voltage rejection v i = 12 to 22 v f = 120hz 56 db v d dropout voltage i o =1a t j = 25c 2 v r o output resistance f = 1 khz 16 m w i sc short circuit current v i =35v t j = 25c 0.45 a i scp short circuit peak current t j = 25c 2.2 a
l7800 series 12/29 electrical characteristics of l7809c (refer to the test circuits, t j = -55 to 150c, v i = 15v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. electrical characteristics of l7812c (refer to the test circuits, t j = -55 to 150c, v i = 19v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 8.65 9 9.35 v v o output voltage i o =5mato1a p o 15w v i = 11.5 to 26 v 8.55 9 9.45 v d v o (*) line regulation v i = 11.5 to 26 v t j = 25c 180 mv v i =12to18v t j = 25c 90 d v o (*) load regulation i o =5mato1.5a t j = 25c 180 mv i o = 250 to 750 ma t j = 25c 90 i d quiescent current t j = 25c 8 ma d i d quiescent current change i o =5mato1a 0.5 ma v i = 11.5 to 26 v 1 d v o / d t output voltage drift i o = 5 ma -1 mv/c en output noise voltage b =10hz to 100khz t j = 25c 70 m v/v o svr supply voltage rejection v i = 12 to 23 v f = 120hz 55 db v d dropout voltage i o =1a t j = 25c 2 v r o output resistance f = 1 khz 17 m w i sc short circuit current v i =35v t j = 25c 0.40 a i scp short circuit peak current t j = 25c 2.2 a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 11.5 12 12.5 v v o output voltage i o =5mato1a p o 15w v i = 14.5 to 27 v 11.4 12 12.6 v d v o (*) line regulation v i = 14.5 to 30 v t j = 25c 240 mv v i =16to22v t j = 25c 120 d v o (*) load regulation i o =5mato1.5a t j = 25c 240 mv i o = 250 to 750 ma t j = 25c 120 i d quiescent current t j = 25c 8 ma d i d quiescent current change i o =5mato1a 0.5 ma v i = 14.5 to 30 v 1 d v o / d t output voltage drift i o = 5 ma -1 mv/c en output noise voltage b =10hz to 100khz t j = 25c 75 m v/v o svr supply voltage rejection v i = 15 to 25 v f = 120hz 55 db v d dropout voltage i o =1a t j = 25c 2 v r o output resistance f = 1 khz 18 m w i sc short circuit current v i =35v t j = 25c 0.35 a i scp short circuit peak current t j = 25c 2.2 a
l7800 series 13/29 electrical characteristics of l7815c (refer to the test circuits, t j = -55 to 150c, v i = 23v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. electrical characteristics of l7818c (refer to the test circuits, t j = -55 to 150c, v i = 26v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 14.5 15 15.6 v v o output voltage i o =5mato1a p o 15w v i = 17.5 to 30 v 14.25 15 15.75 v d v o (*) line regulation v i = 17.5 to 30 v t j = 25c 300 mv v i =20to26v t j = 25c 150 d v o (*) load regulation i o =5mato1.5a t j = 25c 300 mv i o = 250 to 750 ma t j = 25c 150 i d quiescent current t j = 25c 8 ma d i d quiescent current change i o =5mato1a 0.5 ma v i = 17.5 to 30 v 1 d v o / d t output voltage drift i o = 5 ma -1 mv/c en output noise voltage b =10hz to 100khz t j = 25c 90 m v/v o svr supply voltage rejection v i = 18.5 to 28.5 v f = 120hz 54 db v d dropout voltage i o =1a t j = 25c 2 v r o output resistance f = 1 khz 19 m w i sc short circuit current v i =35v t j = 25c 0.23 a i scp short circuit peak current t j = 25c 2.2 a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 17.3 18 18.7 v v o output voltage i o =5mato1a p o 15w v i =21to33v 17.1 18 18.9 v d v o (*) line regulation v i =21to33v t j = 25c 360 mv v i =24to30v t j = 25c 180 d v o (*) load regulation i o =5mato1.5a t j = 25c 360 mv i o = 250 to 750 ma t j = 25c 180 i d quiescent current t j = 25c 8 ma d i d quiescent current change i o =5mato1a 0.5 ma v i =21to33v 1 d v o / d t output voltage drift i o = 5 ma -1 mv/c en output noise voltage b =10hz to 100khz t j = 25c 110 m v/v o svr supply voltage rejection v i = 22 to 32 v f = 120hz 53 db v d dropout voltage i o =1a t j = 25c 2 v r o output resistance f = 1 khz 22 m w i sc short circuit current v i =35v t j = 25c 0.20 a i scp short circuit peak current t j = 25c 2.1 a
l7800 series 14/29 electrical characteristics of l7820c (refer to the test circuits, t j = -55 to 150c, v i = 28v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. electrical characteristics of l7824c (refer to the test circuits, t j = -55 to 150c, v i = 33v, i o =500ma,c i =0.33f,c o = 0.1 f unless otherwise specified). (*) load and line regulation are specified at constant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used. symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 19.2 20 20.8 v v o output voltage i o =5mato1a p o 15w v i =23to35v 19 20 21 v d v o (*) line regulation v i = 22.5 to 35 v t j = 25c 400 mv v i =26to32v t j = 25c 200 d v o (*) load regulation i o =5mato1.5a t j = 25c 400 mv i o = 250 to 750 ma t j = 25c 200 i d quiescent current t j = 25c 8 ma d i d quiescent current change i o =5mato1a 0.5 ma v i =23to35v 1 d v o / d t output voltage drift i o = 5 ma -1 mv/c en output noise voltage b =10hz to 100khz t j = 25c 150 m v/v o svr supply voltage rejection v i = 24 to 35 v f = 120hz 52 db v d dropout voltage i o =1a t j = 25c 2 v r o output resistance f = 1 khz 24 m w i sc short circuit current v i =35v t j = 25c 0.18 a i scp short circuit peak current t j = 25c 2.1 a symbol parameter test conditions min. typ. max. unit v o output voltage t j =25c 232425 v v o output voltage i o =5mato1a p o 15w v i =27to38v 22.8 24 25.2 v d v o (*) line regulation v i =27to38v t j = 25c 480 mv v i =30to36v t j = 25c 240 d v o (*) load regulation i o =5mato1.5a t j = 25c 480 mv i o = 250 to 750 ma t j = 25c 240 i d quiescent current t j = 25c 8 ma d i d quiescent current change i o =5mato1a 0.5 ma v i =27to38v 1 d v o / d t output voltage drift i o = 5 ma -1.5 mv/c en output noise voltage b =10hz to 100khz t j = 25c 170 m v/v o svr supply voltage rejection v i = 28 to 38 v f = 120hz 50 db v d dropout voltage i o =1a t j = 25c 2 v r o output resistance f = 1 khz 28 m w i sc short circuit current v i =35v t j = 25c 0.15 a i scp short circuit peak current t j = 25c 2.1 a
l7800 series 15/29 figure 4 : dropout voltage vs junction temperature figure 5 : peak output current vs input/output differential voltage figure 6 : supply voltage rejection vs frequency figure 7 : output voltage vs junction temperature figure 8 : output impedance vs frequency figure 9 : quiescent current vs junction temperature
l7800 series 16/29 figure 10 : load transient response figure 11 : line transient response figure 12 : quiescent current vs input voltage figure 13 : fixed output regulator note: 1. to specify an output voltage, substitute voltage value for "xx". 2. although no output capacitor is need for stability, it does improve transient response. 3. required if regulator is locate an appreciable distance from power supply filter.
l7800 series 17/29 figure 14 : current regulator figure 15 : circuit for increasing output voltage figure 16 : adjustable output regulator (7 to 30v) v xx i o = ?? +i d r 1 i r1 3 5id r 2 v o =v xx (1+ ?? )+i d r 2 r 1
l7800 series 18/29 figure 17 : 0.5 to 10v regulator figure 18 : high current voltage regulator figure 19 : high output current with short circuit protection r 4 v o =v xx ?? r 1 v beq1 r 1 = ?????? i q1 i req - ?? b q1 v beq1 i o =i reg +q 1 (i reg ????) r 1 v beq2 v o = ??? i sc
l7800 series 19/29 figure 20 : tracking voltage regulator figure 21 : split power supply ( 15v - 1 a) * against potential latch-up problems. figure 22 : negative output voltage circuit
l7800 series 20/29 figure 23 : switching regulator figure 24 : high input voltage circuit figure 25 : high input voltage circuit figure 26 : high output voltage regulator v in =v i- (v z +v be )
l7800 series 21/29 figure 27 : high input and output voltage figure 28 : reducing power dissipation with dropping resistor figure 29 : remote shutdown v o =v xx + v z1 v i(min) - v xx - v drop(max) r= ??????????? i o(max) + i d(max)
l7800 series 22/29 figure 30 : power am modulator (unity voltage gain, i o 0.5) note: the circuit performs well up to 100 khz. figure 31 : adjustable output voltage with temperature compensation note: q 2 is connected as a diode in order to compensate the variation of the q 1 v be withthetemperature.callowsaslowrisetimeofthev o . figure 32 : light controllers (v omin =v xx +v be ) r 2 v o =v xx (1+ ???) +v be r 1 v o rises when the light goes up v o falls when the light goes up
l7800 series 23/29 figure 33 : protection against input short-circuit with high capacitance loads application with high capacitance loads and an output voltage greater than 6 volts need an external diode (see fig. 33) to protect the device against input short circuit. in this case the input voltage falls rapidly while the output voltage decrease slowly. the capacitance discharges by means of the base-emitter junction of the series pass transistor in the regulator. if the energy is sufficiently high, the transistor may be de- stroyed. the external diode by-passes the current from the ic to ground.
l7800 series 24/29 dim. mm. inch min. typ max. min. typ. max. a 11.85 0.466 b 0.96 1.05 1.10 0.037 0.041 0.043 c 1.70 0.066 d 8.7 0.342 e 20.0 0.787 g 10.9 0.429 n 16.9 0.665 p 26.2 1.031 r 3.88 4.09 0.152 0.161 u 39.5 1.555 v 30.10 1.185 to-3 mechanical data p003c/c e b r c d a p g n v u o
l7800 series 25/29 dim. mm. inch min. typ max. min. typ. max. a 4.40 4.60 0.173 0.181 c 1.23 1.32 0.048 0.051 d 2.40 2.72 0.094 0.107 d1 1.27 0.050 e 0.49 0.70 0.019 0.027 f 0.61 0.88 0.024 0.034 f1 1.14 1.70 0.044 0.067 f2 1.14 1.70 0.044 0.067 g 4.95 5.15 0.194 0.203 g1 2.4 2.7 0.094 0.106 h2 10.0 10.40 0.393 0.409 l2 16.4 0.645 l4 13.0 14.0 0.511 0.551 l5 2.65 2.95 0.104 0.116 l6 15.25 15.75 0.600 0.620 l7 6.2 6.6 0.244 0.260 l9 3.5 3.93 0.137 0.154 dia. 3.75 3.85 0.147 0.151 to-220 mechanical dat a p011c
l7800 series 26/29 dim. mm. inch min. typ max. min. typ. max. a 4.40 4.60 0.173 0.181 b 2.5 2.7 0.098 0.106 d 2.5 2.75 0.098 0.108 e 0.45 0.70 0.017 0.027 f 0.75 1 0.030 0.039 f1 1.15 1.50 0.045 0.059 f2 1.15 1.50 0.045 0.059 g 4.95 5.2 0.194 0.204 g1 2.4 2.7 0.094 0.106 h 10.0 10.40 0.393 0.409 l2 16 0.630 l3 28.6 30.6 1.126 1.204 l4 9.8 10.6 0.385 0.417 l6 15.9 16.4 0.626 0.645 l7 9 9.3 0.354 0.366 dia. 3 3.2 0.118 0.126 to-220fp mechanical data l2 a b d e h g l6 f l3 g1 123 f2 f1 l7 l4 7012510/f
l7800 series 27/29 dim. mm. inch min. typ max. min. typ. max. a 4.4 4.6 0.173 0.181 a1 2.49 2.69 0.098 0.106 a2 0.03 0.23 0.001 0.009 b 0.7 0.93 0.027 0.036 b2 1.14 1.7 0.044 0.067 c 0.45 0.6 0.017 0.023 c2 1.23 1.36 0.048 0.053 d 8.95 9.35 0.352 0.368 d1 8 0.315 e 10 10.4 0.393 0.409 e1 8.5 0.335 g 4.88 5.28 0.192 0.208 l 15 15.85 0.590 0.624 l2 1.27 1.4 0.050 0.055 l3 1.4 1.75 0.055 0.068 m 2.4 3.2 0.094 0.126 r 0.4 0.016 v2 0? 8? 0? 8? d 2 pak mec hanical data p011p6g
l7800 series 28/29 dim. mm. inch min. typ max. min. typ. max. a 180 7.086 c 12.8 13.0 13.2 0.504 0.512 0.519 d 20.2 0.795 n 60 2.362 t 14.4 0.567 ao 10.50 10.6 10.70 0.413 0.417 0.421 bo 15.70 15.80 15.90 0.618 0.622 0.626 ko 4.80 4.90 5.00 0.189 0.193 0.197 po 3.9 4.0 4.1 0.153 0.157 0.161 p 11.9 12.0 12.1 0.468 0.472 0.476 tape & reel d 2 pak-p 2 pak-d 2 pak/a-p 2 pak/a mechanical data
l7800 series 29/29 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result f rom its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specificati ons mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectronics. ? the st logo is a registered trademark of stmicroelectronics ? 2003 stmicroelectronics - printed in italy - all rights reserved stmicroelectronics group of companies australia - brazil - canada - china - finland - france - germany - hong kong - india - israel - italy - japan - malaysia - malt a - morocco singapore - spain - sweden - switzerland - united kingdom - united states. ? http://www.st.com

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