wrn78xx-500 wrn78xx-500 wrn78xx-500 wrn78xx-500 wrn78xx-500 wrn78xx-500 wrn78xx-500 wrn78xx-500 series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 2 selection selection selection selection selection selection selection selection guide guide guide guide guide guide guide guide order code input output efficiency (%,typ) voltage range (vdc) voltage (vdc) current (ma) vin(min) vin(max) wrn7803-500 4.75-28 3.3 5 00 90 80 4.75-2 5 -3.3 -400 73 78 wrn7805-500 6 .5- 32 5.0 500 93 84 6.0-27 -5.0 -400 78 83 wrn786.5-500 8 - 32 6.5 500 94 87 6.0-25 -6.5 -300 83 85 WRN7809-500 11-32 9.0 500 95 91 7.0-23 -9.0 -200 87 86 wrn7812-500 15-32 12 500 95 92 7.0-20 -12 -200 85 87 wrn7815-500 18-32 15 500 96 93 7.0-17 -15 -200 84 89 *input voltage can't exceed this value,or will cause the permanent damage. model model model model model model model model selection selection selection selection selection selection selection selection wr wr wr wr wr wr wr wr n78 n78 n78 n78 n78 n78 n78 n78 05 05 05 05 05 05 05 05 - - - - - - - - 500 500 500 500 500 500 500 500 product series output voltage output current wide wide wide wide input, input, input, input, non- non- non- non- isolated isolated isolated isolated regulated regulated regulated regulated s s s s ingle ingle ingle ingle o o o o utput utput utput utput sip sip sip sip 3 3 3 3 dc/dc dc/dc dc/dc dc/dc c c c c onverter onverter onverter onverter features features features features features features features features rohs compliant efficiency up to 9 6% sip package wide temperature range: -40 c to 85 c short circuit protection , thermal shutdown no heatsink required low ripple and noise industry standard pinout mtbf>2,000,000 hours only two extra capacitors are required input voltage range can be lower than the output voltage for higher output voltages the wrn78 xx-500 series converters can also be used to convert a positive voltage into a negative voltage description description description description description description description description the wrn 78xx-500 series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. microdc reserves the copyright output output output output output output output output specification specification specification specification specification specification specification specification s s s s s s s s parameter parameter parameter parameter test test test test conditions conditions conditions conditions min. min. min. min. typ. typ. typ. typ. max. max. max. max. units units units units output voltage accuracy 100% full load 2 3 w 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 20 35 % short circuit input power 0.5 1.8 % short circuit protection continuous, automatic recovery switching frequency 280 330 450 khz quiescent current positive output 5 8 ma quiescent current negative output 7 13 thermal shutdown internal ic junction 150 temperature coefficient -40 c to +85 c ambient 0.02 %/ max capacitance load 1000 f * test ripple and noise by "parallel cable" method. common common common common common common common common specification specification specification specification specification specification specification specification s s s s s s s s parameter parameter parameter parameter test test test test conditions conditions conditions conditions min. min. min. min. typ. typ. typ. typ. max. max. max. max. units units units units operating temp. range -40 85 operating case temp. 100 storage temp. range -55 125 cooling free air convection case material plastic (ul94-v0) lead temperature 1.5mm from case for 10 seconds 300 storage humidity range 95 % mtbf +25 c mil-hdbk-217f 2000 k hours package weight 2.0 g 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. if you need other model, please confirm the power, input voltage and output voltage, then phone us.
wrn78xx-500 wrn78xx-500 wrn78xx-500 wrn78xx-500 wrn78xx-500 wrn78xx-500 wrn78xx-500 wrn78xx-500 series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 2 e e e e e e e e xternal xternal xternal xternal xternal xternal xternal xternal capacitor capacitor capacitor capacitor capacitor capacitor capacitor capacitor table table table table table table table table p p p p art art art art number number number number c1,c3 c1,c3 c1,c3 c1,c3 (ceramic (ceramic (ceramic (ceramic capacitor) capacitor) capacitor) capacitor) c2,c4 c2,c4 c2,c4 c2,c4 (ceramic (ceramic (ceramic (ceramic capacitor) capacitor) capacitor) capacitor) wrn7803-500 10uf/50v 22uf/6.3v wrn7805-500 10uf/50v 22uf/10v wrn786.5-500 10uf/50v 10uf/10v WRN7809-500 10uf/50v 10uf/16v wrn7812-500 10uf/50v 10uf/25v wrn7815-500 10uf/50v 10uf/25v s s s s s s s s tandard tandard tandard tandard tandard tandard tandard tandard application application application application application application application application circuit circuit circuit circuit circuit circuit circuit circuit typical typical typical typical typical typical typical typical characteristics characteristics characteristics characteristics characteristics characteristics characteristics characteristics temperature temperature temperature temperature derating derating derating derating graph graph graph graph application application application application application application application application example example example example example example example example mechanical mechanical mechanical mechanical mechanical mechanical mechanical mechanical dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions note: unit:mm[inch] pin section:0.50*0.30mm(0.020*0.012inch) pin section tolerances: 0.10mm[ 0.004inch] general tolerances: 0.25mm[ 0.010inch] recommended recommended recommended recommended recommended recommended recommended recommended footprint footprint footprint footprint footprint footprint footprint footprint recommended footprint top view,grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) tube tube tube tube tube tube tube tube outline outline outline outline outline outline outline outline dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions note: unit :mm[inch] general tolerances: 0.50mm[ 0.020inch] l=530mm[20.866inch] tube quantity: 22pcs l=220mm[8.661inch] tube quantity: 8pcs
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