the copyright and authority for the interpretation of the products are reserved by mornsun k78lxx-1000r2 a/0-2012 k78lxx-1000r2 series wide input non-isolated & regulated single output patent protection rohs part number system output current outputvoltage product series k78lxx-1000r2 features efficiency up to 91% operating temperature range: -40 c ~ +85 c pin-out compatible with lm78xx linears short circuit protection, thermal shutdown low ripple and noise sip package, meet ul94-v0 low temperature rise industry standard pinout low-cost applications k78lxx-1000 r2 series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. selection guide input voltage(vdc) efficiency (%,max) model nominal range ouput voltage (vdc) ouput current (ma) vin(min) vin (max) k78l01-1000r2 12 4.75-18 1.5 1000 76 72 k78lx2-1000r2 12 4.75-18 1.8 1000 78 75 K78L02-1000R2 12 4.75-18 2.5 1000 83 80 k78l03-1000r2 12 4.75-18 3.3 1000 86 83 k78l05-1000r2 12 6.5-18 5.0 1000 91 88 input specifications item test conditions min. typ. max. unit no-load input power input voltage range -- -- 0.27 w reverse polarity input forbidden input filter capacitance filter 10 f output specifications item test conditions min. typ. max. unit output voltage accuracy 100% load input voltage range -- 2 3 line regulation input voltage range -- 0.4 0.75 load regulation from 10% to 100% full load -- 0.5 1.0 % switching frequency 100% load, input voltage range 350 400 450 khz output current limit -- -- 2800 ma temperature drift -40 +85 -- -- 0.025 %/ c ripple & noise* 20mhz bandwidth(refer to figure 4) -- 20 35 mvp-p over temperature protection ic inside -- -- 160 short circuit input power input voltage range -- 0.3 1.8 w short circuit protection continuous, automatic recovery max. capacitive load -- -- 1000 f note:* ripple and noise tested by parallel cable method. see detailed operation instructions at testing of power converter section, application notes.
the copyright and authority for the interpretation of the products are reserved by mornsun k78lxx-1000r2 a/0-2012 common specifications item test conditions min. typ. max. unit mtbf mil-hdbk-217f@25 1000 -- -- k hours case material plastic (ul94-v0) dimensions 11.60*7.50*10.20 mm weight -- 2.0 -- g environmental specifications item test conditions min. typ. max. unit storage humidity non condensing -- -- 95 % operating temperature power derating(above 55 ) -40 -- 85 storage temperature -55 -- 125 the max. case temperature operating temperature curve range -- -- 100 lead temperature 1.5mm from case for 10 seconds -- -- 300 c cooling free air convection emc specifications ce cispr22/en55022 class b external circuit refer to figure1- emi re cispr22/en55022 class b external circuit refer to figure1- esd iec/en 61000-4-2 contact 4kv perf. criteria b rs iec/en 61000-4-3 10v/m perf. criteria a eft iec/en 61000-4-4 2kv perf. criteria b external circuit refer to figure 1- surge iec/en 61000-4-5 2kv perf. criteria b external circuit refer to figure 1- cs iec/en 61000-4-6 3vr.ms perf. criteria a ems voltage dips short and interruptions immunity iec/en 61000-4-29 0%-70% perf. criteria b emc recommended circuit eut +vin ldm2 c0 tvs ldm1 mov fuse c1 v in gnd + +vout gnd load (figure 1) emc recommended circuit note: in figure 1,part is ems recommended external circuit, part is emi recommended external circuit. choose according to requirements. recommended external circuit parameters: components standard parameter fuse choose according to practical input current mov 10d560 ldm1 82 h tvs smcj36a c0 470 f/25v c1 4.7 f/50v emc recommended circuit pcb layout ? 2 emc test waveform(class b apply circuit) k78l05-1000r2 ce (positive line) k78l05-1000r2 ce (negative line)
the copyright and authority for the interpretation of the products are reserved by mornsun k78lxx-1000r2 a/0-2012 typical application circuit +vin gnd gnd k78lxx-1000r2 1 2 3 +vout c1 c2 (figure 3) external capacitor table model c1 (ceramic capacitor) c2 (ceramic capacitor) k78l03-1000r2 10 f/6.3v k78l05-1000r2 10 f/25v 10 f/10v note 1. general apply to the application-environment, c1 and c2 can be added in the circuit, and they should be placed as near as the products' footprints. 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. cannot use in parallel for output and hot swap for input. 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 4) 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 5) 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 6) typical derating curve operatingtemperature ( ) c
the copyright and authority for the interpretation of the products are reserved by mornsun k78lxx-1000r2 a/0-2012 typical character curve efficiency vs output load curve (vin=vin-nominal) 74 76 78 80 82 84 86 88 90 92 94 1002003004005006007008009001000 total output current (%) efficiency(%) k78l03-1000r2 k78l05-1000r2 efficiency vs input voltage curve (full load) 78 80 82 84 86 88 90 92 6.58 9101214151618 input voltage(v) efficiency(%) k78l03-1000r2 k78l05-1000r2 ripple vs input voltage curve (full load) 0 5 10 15 20 25 4.7556.58 9101214151618 input voltage (v) ripple(mv) k78l03-1000r2 k78l05-1000r2 ripple vs output load curve (vin=vin-nominal) 0 5 10 15 20 25 01002003004005006007008009001000 total output current (%) ripple(mv) k78l03-1000r2 k78l05-1000r2 outline dimensions, recommended footprint & packaging 0 . 5 0 [ 0 . 0 2 0 ] 5.08 [0.200] 11.60 [0.457] 2 . 1 0 [ 0 . 0 8 3 ] 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] note: unitmm[inch] generaltolerance 0.50mm[ 0.020inch] : l=530mm[20.866 inch]packagingquantity:43pcs l=220mm[8.661inch] packagingquantity:17pcs 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. mechanicaldimmensions recommendedfootprint tube outline dimensions 123 1 0 . 2 0 [ 0 . 4 0 2 ] 4 . 1 0 [ 0 . 1 6 1 ] 0.50 [0.020] 9.60 [0.378] 1 2 . 4 0 [ 0 . 4 8 8 ] 1 6 . 9 0 [ 0 . 6 6 5 ] 4.90 [0.193] note: grid mm 2.54*2.54. ( ) frontview () bottom view footprintdetails pin positiveoutput gnd +vout +vin 1 2 3 .00 [0.039] 1 123 note: 1. max. capacitive load tested at input voltage range and full load. 2. all specifications measured at ta=25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 3. in this datasheet, all the test methods of indications are based on our corporate standards. 4. all characteristics are for listed model, non-standard models may perform differently, please contact our technical person for more detail. 5. contact us for your specific requirement. 6. specifications subject to change without prior notice. 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: 86-20-38601850 fax:86-20-38601272 http://www.mornsun-power.com
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