the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. k78xx-1000(l) b/1-2011 page 1 of 4 k78xx-1000(l) 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.) k7801-1000(l) 12 4.75-26 1.5 1000 80 71 k78x2-1000(l) 12 4.75-26 1.8 1000 83 74 k7802-1000(l) 12 4.75-28 2.5 1000 88 80 K7803-1000(l) 24 4.75~28 3.3 1000 90 83 k7805-1000(l) 24 6.5~32 5.0 1000 93 88 k78x6-1000(l) 24 9.0~32 6.5 1000 94 90 k7809-1000(l) 24 12~32 9.0 1000 95 92 k7812-1000(l) 24 16~32 12 1000 96 94 k7815-1000(l) 24 20~32 15 1000 97 94 add suffix l for 90 bend pins, for example: k7805-1000l. output specifications item test conditions min. typ. max. units output voltage accuracy 100% full load 2 3 line regulation vin=min. to max. at full load 0.2 0.4 load regulation* 10% to 100% load 0.4 0.6 % ripple & noise 20mhz bandwidth (refer to figure 3) 25 35 mvp-p short circuit input power** 0.5 1.8 w short circuit protection continuous, automatic recovery thermal shutdown internal ic junction 150 c switching frequency 100% full load 280 330 450 khz vout: 1.5v~3.3v 3000 output current limit vin= min. to max. (at full load) vout:5v ~ 15v 2000 ma quiescent current 5 8 ma temperature coefficient -40 c ~ +85 c ambient 0.02 %/ c max capacitance load 1000 f * k78x2-1000 is 0.75%(max), ** k7801-1000 is 4w(max). common specifications item test conditions min. typ. max. units storage humidity 95 % operating temperature power derating (above 71 c) -40 85 operating case temp. 100 storage temperature -55 125 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 3.7 g efficiency up to 97% operating temperature: -40 c ~ +85 c pin-out compatible with lm78xx linear short circuit protection, thermal shutdown low ripple and noise micro miniature sip package no heatsink required industry standard pinout mtbf>2,000,000 hours applications the k78xx-1000(l) series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. the efficiency of up to 97% 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 k7805-1000 product series output voltage output current 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. k78xx-1000(l) b/1-2011 page 2 of 4 typical charecteristics external capacitor table operating temp.( ) c temperature derating graph (figure1) part number c1 (ceramic capacitor) c2 (ceramic capacitor) k7801-1000(l) 10 f/50v 22 f/6.3v k78x2-1000(l) 10 f/50v 22 f/6.3v k7802-1000(l) 10 f/50v 22 f/6.3v K7803-1000(l) 10 f/50v 22 f/6.3v k7805-1000(l) 10 f/50v 22 f/16v k78x6-1000(l) 10 f/50v 10 f/16v k7809-1000(l) 10 f/50v 10 f/16v k7812-1000(l) 10 f/50v 10 f/25v k7815-1000(l) 10 f/50v 10 f/25v typical application circuit +vin gnd gnd k78xx-1000(l) 1 2 3 +vout c1 c2 (figure 2) 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. k78xx-1000(l) b/1-2011 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 curve efficiency ripple efficiency vs. vin(full load) 40 50 60 70 80 90 100 4.75 9 11 15 18 22 26 30 vin(v) efficiency(%) k7801-1000 k78x2-1000 k7802-1000 K7803-1000 k7805-1000 k78x6-1000 k7809-1000 k7812-1000 k7815-1000 ripple vs. vin(full load) 0 5 10 15 20 25 30 4.75 9 11 15 18 22 26 30 vin(v) ripple(mv) k7801-1000 k78x2-1000 k7802-1000 K7803-1000 k7805-1000 k78x6-1000 k7809-1000 k7812-1000 k7815-1000 efficiency vs.load(vin=vin-nominal) 40 50 60 70 80 90 100 50 1002003004005006007008009001000 load(ma) efficiency(%) k7801-1000 k78x2-1000 k7802-1000 K7803-1000 k7805-1000 k78x6-1000 k7809-1000 k7812-1000 k7815-1000 ripple vs load(vin=vin-nominal) 0 5 10 15 20 25 30 501002003004005006007008009001000 load(ma) ripple(mv) k7801-1000 k78x2-1000 k7802-1000 K7803-1000 k7805-1000 k78x6-1000 k7809-1000 k7812-1000 k7815-1000
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. k78xx-1000(l) b/1-2011 page 4 of 4 outline dimensions & footprint details 1 3 2 +vin gnd +vout footprint details note: unit:mm[inch] pin section tolerances: 0.10mm[ 0.004inch] general tolerances: 0.25mm[ 0.010inch] note: unit :mm[inch] general tolerances: 0.50mm[ 0.020inch] l=530mm[20.866inch] devices per tube quantity: 44pcs l=220mm[8.661inch] devices per tube quantity: 17pcs short tube inner packaging dimensions: l*w*h=255*170*80mm short tube outer packaging dimensions(with six inner packaging boxes): l*w*h=375*280*270mm long tube inner packaging dimensions: l*w*h=580*200*100mm long tube outer packaging dimensions(with two inner packaging boxes): l*w*h=600*215*220mm long tube outer packaging dimensions(with three inner packaging boxes): l*w*h=600*215*325mm pin function 11.20 [0.441] 2 6 . 2 0 [ 0 . 0 3 1 ] 2 0 . 2 0 [ 0 . 7 9 5 ] 6.20 [0.244] k78xx-1000l 11.60 [0.457] 2 3 . 6 0 [ 0 . 9 2 9 ] 2 0 . 6 0 [ 0 . 8 1 1 ] 11.20 [0.441] 16.20 [0.638] k78xx-1000 k78xx-1000l k78xx-1000 5 . 2 0 [ 0 . 2 0 5 ] mechanical dimensions recommended footprint tube outline dimensions (bottom view) 5.08 [0.200] 4.10 [0.161] 17.50 [0.689] 0 . 5 0 [ 0 . 0 2 0 ] 9 . 0 0 [ 0 . 3 5 4 ] 11.50 [0.453] 0 . 3 0 [ 0 . 0 1 2 ] 0.50 [0.020] 2 . 1 5 [ 0 . 0 8 5 ] 123 9.00 [0.354] 1 1 . 5 0 [ 0 . 4 5 3 ] 5 . 0 8 [ 0 . 2 0 0 ] 1 7 . 5 0 [ 0 . 6 8 9 ] 0 . 3 0 [ 0 . 0 1 2 ] 1 9 . 0 0 [ 0 . 7 4 8 ] 0 . 5 0 [ 0 . 0 2 0 ] 4.10 [0.161] 1 2 3 1 .00 [ 0.039] 2 . 1 5 [ 0 . 0 8 5 ] 5.08 [0.200] 11.50 [0.453] 9 . 0 0 [ 0 . 3 5 4 ] 123 note: grid:2.54*2.54mm. k78xx-1000 3 2 1 5 . 0 8 [ 0 . 2 0 0 ] 1.35 [0.053] 1 .00 [ 0.039] 1 1 . 5 0 [ 0 . 4 5 3 ] 17.50 [0.689] k78xx-1000l (bottom view) note: unit:mm[inch] pin section tolerances: 0.10mm[ 0.004inch] general tolerances: 0.25mm[ 0.010inch] note: 1. all specifications measured at ta=25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. in this datasheet, all the test methods of indications are based on corporate standards.
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