, o ne. 20 stern ave. springfield, new jersey 07081 u.s.a. telephone: (973) 376-2922 (212)227-6005 fax: (973) 376-8960 mc7800 series three-terminal positive voltage regulators these voltage regulators are monolithic integrated circuits de- signed as fixed-voltage regulators for a wide variety of applications including local, on-card regulation. these regulators employ internal current limiting, thermal shutdown, and safe-area compensation. with adequate heatsinking they can deliver output currents in excess of 1.0 ampere. although designed primarily as a fixed voltage regu- lator, these devices can be used with external components to obtain adjustable voltages and currents. ? output current in excess of 1.0 ampere ? no external components required ? internal thermal overload protection ? internal short circuit current limiting ? output transistor safe-area compensation ? output voltage offered in 2% and 4% tolerance representative schematic diagram ordering information mc78xxk mc78xxak' mc78xxck mc78xxacic mc78xxct mc78xxact mc78xxbt output voltage tolerance 4% 2% 4% 2% lit, 3% t?t?d op?>tlng junction temp. range -65to +150'c -4010 +u5'c pasfcage metal power piattic power three-terminal positive fixed voltage regulators silicon monolithic integrated circuits k suffix metal package (bottom view) pins 1 and 2 electrically isolated from case. cas is third electrical connection. t suffix plastic package pin 1. input 2, ground 2 3. output 3 (heatsink surface connected to pin 2.) standard application a common ground it required between the input and the output voltages. the input volt- age mull remain tvpicallv 2.0 v above the out- put voltage even during the lovv point on the input ripple voltege. ' xx - these two digit] ol the type number indi- cate voltage. ' - cjn is required if regulator is located in appreciable distance from power supply filter. "" " cq it not needed for stability; however, it does improve traniient response. xx indicates nominal voliftg* type no./voltage ?2% regulator. in metal pawei packegea are available in s, 12 end 15 volt devices. mc7805 s.ovolk mc7806 6.0 volts mc78c8 8.0 volts mc7809 9.0 volta mc781j 12 voltl mc781s 15 volts mc7818 18 volts mc7824 24 volu quality semi-conductors
mc7800 series mc7tm,b,c electrical characteristics iv|n - 14 v. ip - 500 ma, tj = t[ow to thloh inola 1| unless otherwlae noted). ctitnctwl itm output voltage (tj - + 25-ci output voltage (5.0 ma ? iq ? 1.0 a. po < 15 w) 106 vdc c v|n f 23 vdc 11.6vdc*v|n?23vdc line regulation (tj - +25"c, note 2) 10.bvdc?vjn?2bvdc 11 vde ? v|n ? 17 vdc load regulttion itj = + 26"c, now 2) 6.0 ma ?s iq ? 1.6 a 250 ma ? |q * 750 ma quleaeent cgrrsnt (tj - +25*c) quletoent current change 10.s vdo ? vin ? 25 vdc 1 1.5 vdo ?;??: 25 vdc s.oma*lo?1.0a ripple rejection 11.6 vovs < v|n ? 21.5 vdc, 1 - 120 hz dropout votuge (i0 - 1.0 a, tj - +25-c) output nolw volt?g? (ta =? + 26-c) 10 hi 1 f ? 100 khz output reaiitance f - 1.0 khz short-clrcuit current limit (ta = + 25'c) v|n - 35 vdc peak output currant (tj = + 26'c) avenge temperbture coefficient of output voltege symbol vo vo regiine reg load ib ala rr vin-vo vn '0 'to 'mix tcvo mc780* m[n 7.7 7.6 - - ? - 63 ? ? ? ? 1.3 ? typ 8.0 8.0 3.0 2.0 28 9.0 3.2 0.3 0.04 70 2.0 10 18 0.2 2.5 1.0 mw 8.3 8.4 80 40 100 40 0.0 0.8 0.5 ? 2.6 40 ? 1.2 3,3 ? mc7mm8 mln 7.7 7,6 - - - - ? ? ? ? ? - ? iff 8.0 8.0 12 5.0 45 16 43 - 62 2.0 10 ia 0.2 ?2.2 -0.8 max 8.3 8.4 160 80 150 80 8.0 1.0 0.5 ? ? ? ? ? _ ? mc780k mln 7.7 7,6 - - ? - ? ? ? - ? ? ? typ 8.0 8.0 12 6.0 45 16 4.3 - 62 2.0 10 18 0.2 2.2 -0,8 mu 8.3 8.4 160 80 160 90 8.0 1.0 0.5 ? ? ? ? ? ? ? unit vdc vdc mv mv ma ma ds vdc jiv/ vo mft a a mw ?c MC7808ac electrical characteristics iv|n - 14 v, ip - 1.0 a, tj ? tlow to tn|an [note n unl?n olherwite noledl. chankttrtitka output voltagg (tj => *2b'c) output voltage (5.0 ma * lo * 1 0 a, po < is w) 10.6 vdc < v|n ? 23 vdc line regulation (now 2) 10.6 vdc ? v;n * 25 vdc, iq - 600 ma 11 vdc ? v|n ? 17 vdc 11 vde < v|n * 17 vdc, tj - +25'c 10.4 vdc * v|n ? 23 vdc, tj = +2b'c load regulation (note 2) 5.0 ma < iq * 1-6 a. tj = +25-c 5.0 ma * |q ? 1.0 a 250 ma ?: iq ?= 750 ma. tj = + 25'c 250 rna ? iq * 7so ma quieicent current tj - +25-c quleacent current change 11 vdc ?. v|n ? 25 vdc, iq = 600 ma 10.8 vdc ?: v|n < 23 vdc, tj - + 25'c s.omaslo* ida ripple rejection 11.5 vdc mc7800 series mchmct euc1mcal chamctiwffncs (v|n ? 16 v. lo - 800 ma, tj - vc to + 126"c unless otherwise noted). characteristic output voltage (tj = + 26'c) output voltage (5.0 ma ? iq * 1.0 a, po < 15 w) 1 1,5 vdc < v|n<24vdc line regulation (tj ? +25'c, note 1) 11.6vdo?; v|n <26vdc ll.svdc* v|n ? 17 vdc load regulation (tj - +25c, note 1) 6.0 ma * iq ? 1.6 a 250 ma ? iq < 750 ma quiescent current (tj = + 25c) quiescent current change 11.bvdc< v|n < 26 vdc 5.0ma* !q< 1.0 a ripple rejection 11.5 vde <; v|n * 21.s vdc, ( = 120 hz dropout voltage do - 1.0a, tj = i 26c) output noln voltage (tft - + 2s'c) 10 hz s f * 100 khz output reilitance f - 1.0 khz short-circuit current limit (ta = +25c) vm - 35 vde peak output current (tj - + 26'c) average temperature coefficient of output voltage symbol vq vq roflline regioad ib aib rr vln-vo vn ro lac 'mix tcv0 mc7809ct mln 6,65 8.s5 - - ? - ? ? ? ? ? ? - typ 9.0 9.0 12 5.0 35 12 4.3 - 61 2.0 10 18 0.2 2.2 -1.0 max 9,35 9.49 50 25 so 25 8,0 1.0 0.5 ? ? ? _ ? ? - unit vdc vdc mv mv ma ma db vdc mv/vo m(j a a mwc note 1: loid and line regulation ir? ipielflid it coniunt junction umpiritura. ching? in vq dui to h??tlng tflicti mult t? tikin into kcount llpirilily. mm tilling with low duty cyclt ii uild. mc7800 series maximum ratings (ta - +25'c unles3 otherwise noted.) rating input voluga (b.o v - 18v) (24v) pow4r olaalpatlon and thermal characteristics plattlc packago ta - +25c derate above ta *? + 25c thermal resistance, junction to air tc = +26-c derate above tc - +75c (see figure 1) thermal rosiitanco, junction to case metal package ta = 4-js-c derate above ta - +25c thermel reslatance, junction to air tc - -hb-c derate above tc - +65'c (see figure 2) thermal resistance, junction to case stores' junction temperature range operating junction temperature range mc7800.a mc7800c.ac mc7800b symbol vin pd 1/?ja ?ja pd "?jc ?jc pd "?ja ?ja pd 1?jc 9jc tstq tj value 35 40 internally limited 15.4 65 internally limited 200 5.0 internally limited 22.5 45 internally limited 182 5,5 -85to +150 -55 to +150 0 to +150 -40 to +150 unit vdc watts mw/c ?c/w watte mw/c "c/w watts mw/c c/w wens mw/c "c/w "c ?c definitions line regulation ? the change in output voltage for a change in the input voltage. the measurement is made under conditions of low dissipation or by using pulse techniques such that the aver- age chip temperature is not significantly affected. load regulation ? the change in output voltage for a change in load currant at constant chip temperature. maximum power dissipation ? the maximum total dftvice dissi- pation for which the regulator will operate within specifications quiescent current ? that part of the input current that is not delivered to the load output noise voltage ? the rms ac voltage at the output, with constant load and no input ripple, measured over a specified fre- quency range long term stability ? output voltage stability under accelerated life lesl conditions with the maximum rated voltage listed in the devices'electrical characteristics and maximum power dissipation-
mc7800 series typical characteristics ta = +25c unless otherwise noted.) figure 1 - worst case power dissipation voriul ambient temperature (caia 221 a) 20 figure 2 - worst case power dissipation vimii ambient temperature (cw i) 50 -25 0 25 50 75 100 125 150 ta. ambient temperature ("c! figure 3 - input output differential as a function of junction temperature imc78xxc, ac. b) 2.5 -js -so -it i !s 50 is 100 12$ ta. amsitnt temperature ("ci figure 4 - input output differential as a function of junction temperature (mc78xx.ai -75 -50 -25 0 25 50 75 100 tj. junction temperature |c) figure b - peak output current as a function of input-output differential voltage (mc7sxxc, ac. b) 4.0 so 75 100 12$ ta, ambieht temperature 1?c) figure 6 - peak output current as a function of input-output differential voltage (mc78xx. a) 0 6.0 12 18 24 30 vjn-v(), input-output voltage differential (volts) 10 20 30 40 vjn-vo. input-output voltage olfferfntitl (volts)
mc7800 series typical characteristics (continu?d) (ta * 25c unleil otharwlit nottd.) figure 1 - ripple rejection as a function of output voltages (mc78xxc, ac) figure b - ripple rejection as a function of frequency (mc78xxc. ac, a) 3 70 s 1 m i ?<> 40 4 c 3.20 6.10 uj ta o 6.00 cv 5.90 0 5.80 f e.o 7 4.0 i s | 3.0 i 2 i * 1.0 0 v pa mc nc uc mc mc mc "?^ *-fc hi vin 805c10v rwecnv 80sc 14v 78i2ci9v )i1sc 23v iliac 27v ii24c33v ? ~__ aj <^^^ u !? i0'< ?,n- ui- 20h; oma ? 0 vihmsi ? ? ? . 0 6.0 8.0 10 12 14 ie 18 ?0 22 vo. output voltage [voltsi figure a - output voltage as a function >f junction temperature imc78xxc. ac. b) ?^-? ^-^ ^^ ' " n'" v id = 20 ma =>? c ^^~, j-j^ "t 1 1 l. i -50 -25 0 25 50 75 100 125 150 17 tj. junction tempeatufle (?ci figure 11 ? quiescent current as a unction of temperature (mc7bxxc, ac, s) = mc7! 1 1 mmhimn, ir n xx. a " ? =h ? v v la - h= ? =10 a = 5.0 -5.0 h- vin = 10 v vq = 5.0 v - i0 - 20 ma ~ ~t ~ ~ v ^^~ m "^x so i ;eo a u 3 40 fc ce 4 f 1000 500 w j 300 | !00 < a % 100 i so 5 70 10 5 4 80 1 ta s *n s * f* r f .'*' mm" mc v i *'1 f0 78xxc.ac n"10v 0-5v ) ? 20 m/ m "* c73xx,a "t \. 'n, vn id- t.o la 11 vdc 6.0v 1.1 a '"s ?( ' 0 100 1,0k iqk i(k 1. frequency (hi) figure 10 - output impedance as a unction of output voltage (mc78xxc, ac) ^ jo , 1,0^, = 500ma ^ *^^ ^*** z ? -? ? " tw- ? ^-^ 0 s.o 12 16 20 v vq, output voltags ivoxts) figure 12 - dropout characteristics (mc78xx, a) mc7805. a tj = 25c ip'loma^ - -( i /, '// i //. 4 ? 1( it -60 -25 0 25 so 75 100 125 "o 2.0 4.0 ^r = 1.0 a 60 80 10 12 14 k tj. junction temperature |c) input voltage (volts)
luhh. jh1. ms. -**b jsl jjhl m8- mm8 ji!is_ ju!1 a1s1. fi_ juil k sufhx metal package r0ja = 45"c/w (typ) (to-3) notes: 1. cumetbivandsurfmcwmcomuml i posmon?i.rafmscf kkihixfq: h3 v mm 3z
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