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? semiconductor components industries, llc, 2016 december, 2016 ? rev. 24 1 publication order number: mc34063a/d mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a 1.5 a, step-up/down/ inverting switching regulators the mc34063a series is a monolithic control circuit containing the primary functions required for dc?to?dc converters. these devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. this series was specifically designed to be incorporated in step?down and step?up and voltage?inverting applications with a minimum number of external components. refer to application notes an920a/d and an954/d for additional design information. features ? operation from 3.0 v to 40 v input ? low standby current ? current limiting ? output switch current to 1.5 a ? output voltage adjustable ? frequency operation to 100 khz ? precision 2% reference ? ncv prefix for automotive and other applications requiring unique site and control change requirements; aec?q100 qualified and ppap capable ? these devices are pb?free, halogen free/bfr free and are rohs compliant figure 1. representative schematic diagram sq r q2 q1 100 i pk oscillator c t comparator + - 1.25 v reference regulator 1 2 3 4 5 6 7 8 drive collector i pk sense v cc comparator inverting input switch collector switch emitter timing capacitor gnd (bottom view) this device contains 79 active transistors. soic?8 d suffix case 751 pdip?8 p, p1 suffix case 626 1 8 see detailed ordering and shipping information in the package dimensions section on page 12 of this data sheet. ordering information www. onsemi.com x = 3 or 4 a = assembly location l, wl = wafer lot y, yy = year w, ww = work week g or = pb?free package 1 8 3x063ap1 awl yywwg 1 8 33063avp awl yywwg marking diagrams 1 8 3x063 alywa 1 8 3x063v alywa 1 8 1 dfn8 case 488af 33063 alywa
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 2 1 switch collector switch emitter timing capacitor gnd driver collector i pk sense v cc comparator inverting input (top view) 2 3 45 6 7 8 figure 2. pin connections ? ? ? ? ? ? ? ? ?? ?? ?? ?? ?? ?? ?? ?? (top view) ep flag switch collector switch emitter timing capacitor gnd i pk sense driver collector comparator inverting input v cc maximum ratings rating symbol value unit power supply voltage v cc 40 vdc comparator input voltage range v ir ?0.3 to + 40 vdc switch collector voltage v c(switch) 40 vdc switch emitter voltage (v pin 1 = 40 v) v e(switch) 40 vdc switch collector to emitter voltage v ce(switch) 40 vdc driver collector voltage v c(driver) 40 vdc driver collector current (note 1) i c(driver) 100 ma switch current i sw 1.5 a power dissipation and thermal characteristics plastic package, p, p1 suffix t a = 25 c p d 1.25 w thermal resistance r ja 115 c/w soic package, d suffix t a = 25 c p d 625 mw thermal resistance r ja 160 c/w thermal resistance r jc 45 c/w dfn package t a = 25 c p d 1.25 mw thermal resistance r ja 80 c/w operating junction temperature t j +150 c operating ambient temperature range t a c mc34063a, sc34063a 0 to +70 mc33063av, ncv33063a ?40 to +125 mc33063a, sc33063a ?40 to + 85 storage temperature range t stg ?65 to +150 c stresses exceeding those listed in the maximum ratings table may damage the device. if any of these limits are exceeded, device function ality should not be assumed, damage may occur and reliability may be affected. 1. maximum package power dissipation limits must be observed. 2. this device series contains esd protection and exceeds the following tests: human body model 4000 v per mil?std?883, method 3015. machine model method 400 v. 3. ncv prefix is for automotive and other applications requiring site and change control.
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 3 electrical characteristics (v cc = 5.0 v, t a = t low to t high [note 4], unless otherwise specified.) characteristics symbol min typ max unit oscillator frequency (v pin 5 = 0 v, c t = 1.0 nf, t a = 25 c) f osc 24 33 42 khz charge current (v cc = 5.0 v to 40 v, t a = 25 c) i chg 24 35 42 a discharge current (v cc = 5.0 v to 40 v, t a = 25 c) i dischg 140 220 260 a discharge to charge current ratio (pin 7 to v cc , t a = 25 c) i dischg /i chg 5.2 6.5 7.5 ? current limit sense voltage (i chg = i dischg , t a = 25 c) v ipk(sense) 250 300 350 mv output switch (note 5) saturation voltage, darlington connection (i sw = 1.0 a, pins 1, 8 connected) v ce(sat) ? 1.0 1.3 v saturation voltage (note 6) (i sw = 1.0 a, r pin 8 = 82 to v cc , forced 20) v ce(sat) ? 0.45 0.7 v dc current gain (i sw = 1.0 a, v ce = 5.0 v, t a = 25 c) h fe 50 75 ? ? collector off?state current (v ce = 40 v) i c(off) ? 0.01 100 a comparator threshold voltage t a = 25 c t a = t low to t high v th 1.225 1.21 1.25 ? 1.275 1.29 v threshold voltage line regulation (v cc = 3.0 v to 40 v) mc33063, mc34063 mc33063v, ncv33063 reg line ? ? 1.4 1.4 5.0 6.0 mv input bias current (v in = 0 v) i ib ? ?20 ?400 na total device supply current (v cc = 5.0 v to 40 v, c t = 1.0 nf, pin 7 = v cc , v pin 5 > v th , pin 2 = gnd, remaining pins open) i cc ? ? 4.0 ma product parametric performance is indicated in the electrical characteristics for the listed test conditions, unless otherwise noted. product performance may not be indicated by the electrical characteristics if operated under different conditions. 4. t low = 0 c for mc34063, sc34063; ? 40 c for mc33063, sc33063, mc33063v, ncv33063 t high = +70 c for mc34063, sc34063; + 85 c for mc33063, sc33063; +125 c for mc33063v, ncv33063 5. low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as poss ible. 6. if the output switch is driven into hard saturation (non?darlington configuration) at low switch currents ( 300 ma) and high driver currents ( 30 ma), it may take up to 2.0 s for it to come out of saturation. this condition will shorten the off time at frequencies 30 khz, and is magnified at high temperatures. this condition does not occur with a darlington configuration, since the output switch cannot s aturate. if a non?darlington configuration is used, the following output drive condition is recommended: forced of output switch : i c output i c driver ? 7.0 ma * 10 * the 100 resistor in the emitter of the driver device requires about 7.0 ma before the output switch conducts.
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 4 0 2 4 6 8 10 12 14 16 18 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 20 40 60 80 100 120 140 160 180 figure 3. oscillator frequency v cc = 5.0 v, pin 7 = v cc pin 5 = gnd, t a = 25 c ct, timing capacitor capacitance (nf) off time ( s) on time ( s), frequency (khz) on time ( s) off time ( s) frequency (khz) v cc = 5.0 v pin 7 = v cc pin 2 = gnd pins 1, 5, 8 = open c t = 1.0 nf t a = 25 c figure 4. timing capacitor waveform 10 s/div , oscillator voltage (v) osc 200 mv/div v figure 5. emitter follower configuration output saturation voltage versus emitter current figure 6. common emitter configuration outpu t switch saturation voltage versus collector current figure 7. current limit sense voltage versus temperature figure 8. standby supply current versus supply voltage 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 , saturation voltage (v) ce(sat) i e , emitter current (a) v v cc = 5.0 v pins 1, 7, 8 = v cc pins 3, 5 = gnd t a = 25 c (see note 7) , saturation voltage (v) ce(sat) 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 i c , collector current(a) v darlington connection forced = 20 -55 -25 0 25 50 75 100 125 , current limit sense voltage (v) ipk(sense) t a , ambient temperature ( c) v v cc = 5.0 v i chg = i dischg 0 5.0 10 15 20 25 30 35 40 , supply current (ma) cc v cc , supply voltage (v) i c t = 1.0 nf pin 7 = v cc pin 2 = gnd 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 1.1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 400 380 360 340 320 300 280 260 240 220 200 3.6 3.2 2.4 2.0 1.6 1.2 0.8 0.4 0 1.0 2.8 v cc = 5.0 v pin 7 = v cc pins 2, 3, 5 = gnd t a = 25 c (see note 7) 7. low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as poss ible.
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 5 170 h l 8 180 7 r sc 0.22 6 v in 12 v 100 + 5 r1 2.2 k r2 47 k sq r q2 q1 i pk osc c t v cc + - comp. 1.25 v ref reg 1 2 3 4 1n5819 c t 1500 pf 330 c o + v out 28 v/175 ma v out 1.0 h + 100 optional filter test conditions results line regulation v in = 8.0 v to 16 v, i o = 175 ma 30 mv = 0.05% load regulation v in = 12 v, i o = 75 ma to 175 ma 10 mv = 0.017% output ripple v in = 12 v, i o = 175 ma 400 mvpp efficiency v in = 12 v, i o = 175 ma 87.7% output ripple with optional filter v in = 12 v, i o = 175 ma 40 mvpp figure 9. step?up converter
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 6 9a. external npn switch 9b. external npn saturated switch (see note 8) 8 7 6 r sc v in 1 2 v out r r 0 for constant v in 8. if the output switch is driven into hard saturation (non?darlington configuration) at low switch currents ( 300 ma) and high driver current s ( 30 ma), it may take up to 2.0 s to come out of saturation. this condition will shorten the off time at frequencies 30 khz, and is magnified at high temperatures. this condition does not occur with a darlington configuration, since the output switch cannot saturate. i f a non?darlington configuration is used, the following output drive condition is recommended. 8 7 6 r sc v in 1 2 v out figure 10. external current boost connections for i c peak greater than 1.5 a
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 7 1.25 v ref reg v out 5.0 v/500 ma 1.0 h v out + 100 optional filter 8 7 r sc 0.33 6 v in 25 v 100 + r1 1.2 k r2 3.6 k sq r q2 q1 i pk osc c t v cc + - comp. 1 2 3 4 c t 470 pf 470 c o + 5 l 1n5819 220 h test conditions results line regulation v in = 15 v to 25 v, i o = 500 ma 12 mv = 0.12% load regulation v in = 25 v, i o = 50 ma to 500 ma 3.0 mv = 0.03% output ripple v in = 25 v, i o = 500 ma 120 mvpp short circuit current v in = 25 v, r l = 0.1 1.1 a efficiency v in = 25 v, i o = 500 ma 83.7% output ripple with optional filter v in = 25 v, i o = 500 ma 40 mvpp figure 11. step?down converter 11a. external npn switch 11b. external pnp saturated switch 8 7 6 r sc v in 1 2 v out 8 7 6 r sc v in 1 2 v figure 12. external current boost connections for i c peak greater than 1.5 a
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 8 1.25 v ref reg v out -12 v/100 ma v out 1.0 h + 100 optional filter 8 7 r sc 0.24 6 v in 4.5 v to 6.0 v 100 + 5 r2 8.2 k sq r q2 q1 i pk osc c t comp. r1 953 1 2 3 4 + 1500 pf + - 1n5819 1000 f + 88 h v cc c o l test conditions results line regulation v in = 4.5 v to 6.0 v, i o = 100 ma 3.0 mv = 0.012% load regulation v in = 5.0 v, i o = 10 ma to 100 ma 0.022 v = 0.09% output ripple v in = 5.0 v, i o = 100 ma 500 mvpp short circuit current v in = 5.0 v, r l = 0.1 910 ma efficiency v in = 5.0 v, i o = 100 ma 62.2% output ripple with optional filter v in = 5.0 v, i o = 100 ma 70 mvpp figure 13. voltage inverting converter 13a. external npn switch 13b. external pnp saturated switch 8 7 6 v in 1 2 v out 8 7 6 v in 1 2 v out figure 14. external current boost connections for i c peak greater than 1.5 a 3 4 + 3 4 +
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 9 figure 15. printed circuit board and component layout (circuits of figures 9, 11, 13) inductor data converter inductance ( h) turns/wire step?up 170 38 turns of #22 awg step?down 220 48 turns of #22 awg voltage?inverting 88 28 turns of #22 awg all inductors are wound on magnetics inc. 55117 toroidal core.
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 10 figure 16. printed circuit board for dfn device
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 11 calculation step?up step?down voltage?inverting t on /t off v out v f v in(min) v in(min) v sat v out v f v in(min) v sat v out |v out | v f v in v sat (t on + t off ) 1 f 1 f 1 f t off t on t off t on t off 1 t on t off t on t off 1 t on t off t on t off 1 t on (t on + t off ) ? t off (t on + t off ) ? t off (t on + t off ) ? t off c t 4.0 x 10 ?5 t on 4.0 x 10 ?5 t on 4.0 x 10 ?5 t on i pk(switch) 2i out(max) t on t off 1 2i out(max) 2i out(max) t on t off 1 r sc 0.3/i pk(switch) 0.3/i pk(switch) 0.3/i pk(switch) l (min) (v in(min) v sat ) i pk(switch) t on(max) (v in(min) v sat v out ) i pk(switch) t on(ma x) (v in(min) v sat ) i pk(switch) t on(max) c o 9 i out t on v ripple(pp) i pk(switch) (t on t off ) 8v ripple(pp) 9 i out t on v ripple(pp) v sat = saturation voltage of the output switch. v f = forward voltage drop of the output rectifier. the following power supply characteristics must be chosen: v in ? nominal input voltage. v out ? desired output voltage, i out ? desired output current. f min ? minimum desired output switching frequency at the selected values of v in and i o . v ripple(pp) ? desired peak?to?peak output ripple voltage. in practice, the calculated capacitor value will need to be increased due to its equivalent series resistance and board layout. the ripple voltage should be kept to a low value since it will directly affect the line and load regulation. note: for further information refer to application note an920a/d and an954/d. |v out | 1.25 1 r2 r1 figure 17. design formula table
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 12 ordering information device package shipping ? mc33063adg soic?8 (pb?free) 98 units / rail mc33063adr2g soic?8 (pb?free) 2500 units / tape & reel SC33063ADR2G soic?8 (pb?free) 2500 units / tape & reel mc33063ap1g pdip?8 (pb?free) 50 units / rail mc33063avdg soic?8 (pb?free) 98 units / rail mc33063avdr2g soic?8 (pb?free) ncv33063avdr2g* soic?8 (pb?free) 2500 units / tape & reel mc33063avpg pdip?8 (pb?free) 50 units / rail mc34063adg soic?8 (pb?free) 98 units / rail mc34063adr2g soic?8 (pb?free) 2500 units / tape & reel sc34063adr2g soic?8 (pb?free) 2500 units / tape & reel mc34063ap1g pdip?8 (pb?free) 50 units / rail sc34063ap1g pdip?8 (pb?free) 50 units / rail mc33063mntxg dfn8 (pb?free) 4000 units / tape & reel ?for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specification brochure, brd8011/d. *ncv33063a: t low = ?40 c, t high = +125 c. guaranteed by design. ncv prefix is for automotive and other applications requiring site and change control.
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 13 package dimensions soic?8 nb case 751?07 issue ak seating plane 1 4 5 8 n j x 45 k notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. 3. dimension a and b do not include mold protrusion. 4. maximum mold protrusion 0.15 (0.006) per side. 5. dimension d does not include dambar protrusion. allowable dambar protrusion shall be 0.127 (0.005) total in excess of the d dimension at maximum material condition. 6. 751?01 thru 751?06 are obsolete. new standard is 751?07. a b s d h c 0.10 (0.004) dim a min max min max inches 4.80 5.00 0.189 0.197 millimeters b 3.80 4.00 0.150 0.157 c 1.35 1.75 0.053 0.069 d 0.33 0.51 0.013 0.020 g 1.27 bsc 0.050 bsc h 0.10 0.25 0.004 0.010 j 0.19 0.25 0.007 0.010 k 0.40 1.27 0.016 0.050 m 0 8 0 8 n 0.25 0.50 0.010 0.020 s 5.80 6.20 0.228 0.244 ?x? ?y? g m y m 0.25 (0.010) ?z? y m 0.25 (0.010) z s x s m 1.52 0.060 7.0 0.275 0.6 0.024 1.270 0.050 4.0 0.155 mm inches scale 6:1 *for additional information on our pb?free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. soldering footprint*
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 14 package dimensions pdip?8 p, p1 suffix case 626?05 issue p 14 5 8 b2 note 8 d b l a1 a eb e a top view c seating plane 0.010 ca side view end view end view with leads constrained dim min max inches a ???? 0.210 a1 0.015 ???? b 0.014 0.022 c 0.008 0.014 d 0.355 0.400 d1 0.005 ???? e 0.100 bsc e 0.300 0.325 m ???? 10 ??? 5.33 0.38 ??? 0.35 0.56 0.20 0.36 9.02 10.16 0.13 ??? 2.54 bsc 7.62 8.26 ??? 10 min max millimeters notes: 1. dimensioning and tolerancing per asme y14.5m, 1994. 2. controlling dimension: inches. 3. dimensions a, a1 and l are measured with the pack- age seated in jedec seating plane gauge gs?3. 4. dimensions d, d1 and e1 do not include mold flash or protrusions. mold flash or protrusions are not to exceed 0.10 inch. 5. dimension e is measured at a point 0.015 below datum plane h with the leads constrained perpendicular to datum c. 6. dimension eb is measured at the lead tips with the leads unconstrained. 7. datum plane h is coincident with the bottom of the leads, where the leads exit the body. 8. package contour is optional (rounded or square corners). e1 0.240 0.280 6.10 7.11 b2 eb ???? 0.430 ??? 10.92 0.060 typ 1.52 typ e1 m 8x c d1 b a2 0.115 0.195 2.92 4.95 l 0.115 0.150 2.92 3.81 h note 5 e e/2 a2 note 3 m b m note 6 m
mc34063a, mc33063a, sc34063a, sc33063a, ncv33063a www. onsemi.com 15 package dimensions case 488af?01 issue c notes: 1. dimensions and tolerancing per asme y14.5m, 1994. 2. controlling dimension: millimeters. 3. dimension b applies to plated terminal and is measured between 0.15 and 0.30mm from terminal tip. 4. coplanarity applies to the exposed pad as well as the terminals. 5. details a and b show optional constructions for terminals. dim min max millimeters a 0.80 1.00 a1 0.00 0.05 a3 0.20 ref b 0.25 0.35 d 4.00 bsc d2 1.91 2.21 e 4.00 bsc e2 2.09 2.39 e 0.80 bsc k 0.20 ??? l 0.30 0.50 d b e c 0.15 a c 0.15 2x 2x top view side view bottom view ? ?? ? ? ?? ? ? c 0.08 c 0.10 ? ? ? ?? ?? ? ? ? ? e 8x l k e2 d2 b note 3 1 4 5 8 8x 0.10 c 0.05 c ab pin one reference *for additional information on our pb?free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. soldering footprint* 8x 0.63 2.21 2.39 8x 0.80 pitch 4.30 0.35 l1 detail a l optional constructions ?? ?? ?? ??? 0.15 detail b note 4 detail a dimensions: millimeters package outline mc34063a/d sensefet is a trademark of semiconductor components industries, llc. on semiconductor and are trademarks of semiconductor components industries, llc dba on semiconductor or its subsidiaries i n the united states and/or other countries. on semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property . a listing of on semiconductor?s product/patent coverage may be accessed at www.onsemi.com/site/pdf/patent?marking.pdf . on semiconductor reserves the right to make changes without further notice to any products herein. on semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does o n semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. buyer is responsible for its products and applications using on semiconductor products, including compliance with all laws, reg ulations and safety requirements or standards, regardless of any support or applications information provided by on semiconductor. ?typical? parameters which may be provided in on semiconductor data sheets and/or specifications can and do vary in dif ferent applications and actual performance may vary over time. all operating parameters, including ?typic als? must be validated for each customer application by customer?s technical experts. on semiconductor does not convey any license under its patent rights nor the right s of others. on semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any fda class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. should buyer purchase or use on semicondu ctor products for any such unintended or unauthorized application, buyer shall indemnify and hold on semiconductor and its officers, employees, subsidiaries, affiliates, and distrib utors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that on semiconductor was negligent regarding the design or manufacture of the part. on semiconductor is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. p ublication ordering information n. american technical support : 800?282?9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81?3?5817?1050 literature fulfillment : literature distribution center for on semiconductor 19521 e. 32nd pkwy, aurora, colorado 80011 usa phone : 303?675?2175 or 800?344?3860 toll free usa/canada fax : 303?675?2176 or 800?344?3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your loc al sales representative ?

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