nke series isolated sub-miniature 1w single output dc-dc converters www.dc-dc.com selection guide features n new sub-miniature sip & dip styles n 3kvdc isolation n efficiency to 81% n w ide temperature performance at full 1 watt load, ?0? to 85? n increased power density to 1.95w/cm 3 n ul 94v-0 package material n footprint 0.69cm 2 n single isolated output n industry standard pinout n 3.3v, 5v & 12v input n 3.3v, 5v, 9v, 12v and 15v output n no heatsink required n internal smd construction n fully encapsulated with toroidal magnetics n no external components required n mttf up to 2.4 million hours n custom solutions available n no electrolytic or tantalum capacitors description the nke sub-miniature series of dc-dc converters is particularly suited to isolating and/or converting dc power rails. a smaller package size, improved efficiency, lower output ripple and 3kvdc isolation capability through state of the art packaging and improved technology. the galvanic isolation allows the device to be configured to provide an isolated negative rail in systems wher e only positive rails exist. the wide temperatur e range guarantees startup from ?0? and full 1 watt output at 85?. nominal input input output output cur r ent at isolation v oltage v oltage cur r ent rated load efficiency capacitance mttf 1 ordercode ? (v) (v) (ma) (ma) (%) (pf) khrs nke0303s 3.3 3.3 303 400 75 30 1234 nke0305s 3.3 5 200 400 76 35 632 nke0503s 5 3.3 303 270 75 40 619 nke0505se 5 5 200 250 78 34 419 nke0505s 5 5 200 289 69 28 2414 nke0509s 5 9 111 266 75 29 1173 nke0512s 5 12 83 260 77 30 633 nke0515s 5 15 66 256 78 32 360 nke1205s 12 5 200 117 71 35 620 nke1209s 12 9 111 107 78 50 488 nke1212s 12 12 83 105 79 57 360 nke1215s 12 15 66 103 81 60 252 ? for dip package style replace suffix s with d, eg nke0303d. when operated with additional external load capacitance the rise time of the input voltage will determine the maximum external capacitance value for guaranteed start up. the slower the rise time of the input voltage the greater the maximum value of the additional external capacitance for reliable start up. 1 calculated using mil-hdbk-217f with nominal input voltage at full load. 2 see derating curve. 3 12v input types have typically 3% less load regulation change. 4 supply voltage must be discontinued at the end of the short circuit duration. all specifications typical at t a =25?, nominal input voltage and rated output current unless otherwise specified. parameter conditions min typ max units continuous operation, 3.3v input types 2.97 3.3 3.63 v oltage range continuous operation, 5v input types 4.5 5.0 5.5 continuous operation, 12v input types 10.8 12.0 13.2 v reflected ripple cur r ent 40 60 ma p-p short circuit duration 4 1 second internal power dissipation 530mw lead temperature 1.5mm from case for 10 seconds 300? input voltage v in nke03 types 5.5v input voltage v in nke05 types 7v input voltage v in nke12 types 15v input characteristics absolute maximum ratings parameter conditions typ max units rated power 2 t a = ?0? to 85? 1 w v oltage set point accuracy see tolerance envelope line regulation high v in to low v in 1.0 1.2 %/% 10% load to rated load, 3.3v output types 10 15 10% load to rated load, 5v output types 12 15 load regulation 3 10% load to rated load, 9v output types 7.5 10 % 10% load to rated load, 12v output types 6.5 9.5 10% load to rated load, 15v output types 6.0 8.5 bw=dc to 20mhz, 3.3v output types 40 80 bw=dc to 20mhz, 5v output types 77 100 ripple and noise bw=dc to 20mhz, 9v output types 43 90 mv p-p bw=dc to 20mhz, 12v output types 35 65 bw=dc to 20mhz, 15v output types 32 55 output characteristics
nke series isolated sub-miniature 1w single output dc-dc converters c&d technologies (ncl) ltd t anners drive, blakelands north milton keynes mk14 5bu, england t el: +44 (0)1908 615232 fax:+44 (0)1908 617545 email: info@cdtechno-ncl.com www: http://www.dc-dc.com c&d technologies (ncl), inc. 5816 creedmoor road, raleigh nc 27612, usa t el: +1 (919) 571-9405 fax: +1 (919) 571-9262 email: info@us.cdtechno-ncl.com c&d technologies (ncl) limited reserve the right to alter or improve the specification, internal design or manufacturing process at any time, without notice. please check with your supplier or visit our web site to ensure that you have the cur r ent and complete specification for your product before use. ?c&d technologies (ncl) limited 2001 ndc nke.5 no part of this publication may be copied, transmitted or stored in a r etrieval system or reproduced in any way including, but not limited to, photography, photocopy, magnetic or other recording means, without prior written permission from c&d technologies (ncl) limited. instructions for use are available from www.dc-dc.com isolation characteristics temperature characteristics general characteristics temperature characteristics performance characteristics parameter conditions min typ max units isolation test voltage flash tested for 1 second 3000 vdc resistance v iso=500vdc 10 g w parameter conditions min typ max units switching frequency all input types 115 khz parameter conditions min typ max units specification all output types -40 85 ? storage -50 130 ? case temperatur e 0505d/s, 1205d/s 41 ? above ambient a ll other output types 32 cooling free air convection 6.00 mechanical dimensions
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