the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. k78xxm-1000 a/4 -2011 page 1 of 4 k78xxm-1000 series wide input non-isolated & regulated single output rohs features product program input voltage(vdc) output efficiency (%)(typ.) part number nominal range voltage (vdc) current (ma) vin (min.) vin (max.) K7801M-1000 12 4.75-18 1.5 1000 78 72 k78x2m-1000 12 4.75-18 1.8 1000 82 76 k7802m-1000 12 4.75-18 2.5 1000 87 82 k7803m-1000 12 4.75-20 3.3 1000 90 83 k7805m-1000 12 6.5-20 5.0 1000 93 85 output specifications item test conditions min. typ. max. units *output voltage accuracy 100% full load, input voltage range 2 3 line regulation vin=min. to max, at full load 0.5 0.75 load regulation 10% to 100% load 0.5 1.0 % ripple & noise 20mhz bandwidth, (refer to figure 3) 25 45 mvp-p short circuit protection continuous, auto-recovery thermal shutdown internal ic junction 150 c output current limit 3000 ma switching frequency full load, input voltage range 335 385 435 khz dynamic load stability 100 mv quiescent current vin from min to max and at 0% load 7 10 ma temperature coefficient -40 c ~ +85 c ambient 0.02 %/ c max capacitance load 1000 f *k7803m-1000 is 3.5%(max) common specifications item test conditions min. typ. max. units storage humidity range 95 % operating temp. range power derating (above 71 c) -40 85 storage temp. range -55 125 operating case temp. 100 lead temperature 1.5mm from case for 10 seconds 300 c cooling free air convection case material plastic (ul94-v0) mtbf (25 ,mil-hdbk-217f) 2000 k hours weight 2.0 g efficiency up to 93% operating tem. range : -40 c ~ +85 c pin-out compatible with lm78xx linear short circuit protection, thermal shutdown low ripple and noise micro miniature sip package, meet ul94-v0 requirement no heatsink required industry standard pinout mtbe>2000khours applications the k78xxm-1000 series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. the efficiency of up to 93% means that very little energy is wasted as heat so there is no need for any heatsinks with their additional space and mounting costs. model selection k7805m-1000 product series output voltage output current package style mornsun science & technology co.,ltd. address: no. 5, kehui st. 1, kehui development center, science ave., guangzhou science city, luogang district, guangzhou,p.r.china. tel: 86-20-28203030 fax:86-20-28203068 http://www.mornsun-power.com
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. k78xxm-1000 a/4 -2011 page 2 of 4 typical charecteristics external capacitor table operating temp.( ) c temperature derating graph (figure 1) part number c1 (ceramic capacitor) c2 (ceramic capacitor) K7801M-1000 10 f/25v 22 f/6.3v k78x2m-1000 10 f/25v 22 f/6.3v k7802m-1000 10 f/25v 22 f/10v k7803m-1000 10 f/25v 22 f/16v k7805m-1000 10 f/25v 22 f/16v typical application circuit +vin gnd gnd k78xxm-1000 1 2 3 +vout c1 c2 (figure 2) note: 1. c1 and c2 are required and should be fitted close to the converter pins. 2. the capacitance of c1,c2 sees external capacitor table, it can be increased properly if required, and tantalum or low esr electrolytic capacitors may also suffice. 3. no parallel connection or plug and play. test configurations (ta=25 c) 1 efficiency and output voltage ripple test scope ceramic 3 +vin gnd +vout c2 c1 25.4mm 1 2 . 5 4 m m dc/dc converter 2 25.4mm 12.7mm 1f 10f tantalum copper strip copper strip l o a d (figure 3) 2 start-up and load transient response test 3 +vin gnd +vout c2 c1 50.8 mm 1 2 . 5 4 m m dc/dc converter 2 scope copper strip l o a d copper strip (figure 4)
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. k78xxm-1000 a/4 -2011 page 3 of 4 output ripple reduction 3 +vin gnd +vout 1 dc/dc converter c1 22f 2 c2 l o a d l to reduce output ripple, it is recommended to add a lc filter in output port. l: recommended parameter 10 h ~ 47 h. (figure 5) characteristics efficiency ripple efficiency vs vin(full load) 0 10 20 30 40 50 60 70 80 90 100 4.75566.57.2891012151820 vin(v) efficiency (%) K7801M-1000 k78x2m-1000 k7802m-1000 k7803m-1000 k7805m-1000 ripple vs vin(full load) 0 5 10 15 20 25 30 4.75566.57.2891012151820 vin(v) ripple(mv) K7801M-1000 k78x2m-1000 k7802m-1000 k7803m-1000 k7805m-1000 efficiency vs load(vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 1002003004005006007008009001000 load(ma) efficiency (%) K7801M-1000 k78x2m-1000 k7802m-1000 k7803m-1000 k7805m-1000 ripple vs load(vin=vin-nominal) 0 5 10 15 20 25 30 1002003004005006007008009001000 load(ma) ripple(mv) K7801M-1000 k78x2m-1000 k7802m-1000 k7803m-1000 k7805m-1000
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. k78xxm-1000 a/4 -2011 page 4 of 4 outline dimensions & footprint details 0 . 5 0 [ 0 . 0 2 0 ] 5.08 [0.200] 11.60 [0.457] 1 . 8 0 [ 0 . 0 7 1 ] 0 . 3 0 [ 0 . 0 1 2 ] 7 . 5 0 [ 0 . 2 9 5 ] note unitmminch pinsectiontolerancesmminch general tolerances:mminch : :[] : 0.10[ 0.004] 0.25[ 0.010] mechanicaldimmensions recommendedfootprint tube outline dimensions 1 .00 [0.039] 1 . 8 0 [ 0 . 0 7 1 ] 123 123 1 0 . 2 0 [ 0 . 4 0 2 ] 4 . 1 0 [ 0 . 1 6 1 ] 0.50 [0.020] 9.40 [0.370] 1 2 . 2 0 [ 0 . 4 8 0 ] 1 6 . 7 0 [ 0 . 6 5 7 ] 4.70 [0.185] note: grid:mm 2.54*2.54. 5.08 [0.200] 7 . 5 0 [ 0 . 2 9 5 ] 11.60 [0.457] ( ) frontview () bottom view ( ) sideview footprintdetails pin function gnd +vout +vin 1 2 3 shorttubeinnerpackagingdimensions: l*w*h=255*170*80mm; shorttubeouterpackaging dimensions (withsixinnerpackagingboxes): l*w*h=375*280*270mm; long tubeinnerpackagingdimensions: l*w*h=580*200*100mm; long tubeouterpackagingdimensions(withtwoinnerpackagingboxes) l*w*h=600*215*220mm; long tubeouterpackagingdimensions(with threeinnerpackagingboxes) l*w*h=600*215*325mm. note: unitmm[inch] generaltolerance : 0.50mm[ 0.020inch] l=530mm[20.866 inch]packagingquantity:43pcs l=220mm[8.661inch] pcs packagingquantity:17 note: 1. all specifications measured at ta=25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. only typical models listed, other models may be different, please contact our technical person for more details.
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