dc/dc converter k78 lxx-1000r3 series 201 6 . 03.2 4 -a/0 page 1 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation wide input voltage , non-isolated & regulated single output patent protection rohs features ? high efficiency up to 9 6 % ? no-load input current as low as 0. 1 ma ? operating temperature range: -40 to +85 ? support the negative output ? output short circuit protection ? pin-out compatible with lm78xx linear regulators ? meets ul60950, en60950 standards pending k78 l xx- 10 00r3 series are high efficiency switching regulators and ideal substitutes of lm78xx series three-terminal linear regulators. the product is featured with high efficiency, low loss and no heat sink requirement. they are widely used in industrial control, instrumentation, and electric power applications. selection guide certification part number input voltage (vdc) output efficiency (%/typ.) (min. vin)/ (max. vin) @full load max. capacitive load( f) nominal (range) output voltage (vdc) max. output current (ma) ul/ce (pending) k78 l 03- 10 00r3 24 ( 6 -36) 3.3 1000 90 /8 1 680 k78 l 05- 10 00r3 24 ( 8 -36) 5.0 1000 93 /8 6 680 12 ( 8 - 27 ) -5.0 - 500 86 /8 2 330 k78 l 12- 10 00r3 24 (1 6 -36) 12 1000 96 /9 3 680 12 (8-2 0 ) -12 - 300 8 9 /8 8 330 k78 l 15- 10 00r3 24 ( 20 -36) 15 1000 9 6 /9 4 680 12 (8- 18 ) -15 - 300 8 9 /8 9 330 note:for input voltage higher than 30 vdc, a 22 f/50v input capacitor is required. input specifications item operating conditions min. typ. max. unit no-load input current positive output -- 0. 1 1 ma reverse polarity input forbidden input filter capacitor filter output specifications item operating conditions min. typ. max. unit output voltage accuracy full load, input voltage range k78 l 03- 10 00r3 -- 2 4 % others -- 2 3 line regulation full load, input voltage range -- 0.2 0.4 load regulation nominal input,10% -100% load -- 0.4 0.6 ripple & noise* 20mhz bandwidth, nominal input , 2 0% -100% load -- 20 75 mvp-p temperature drift coefficient operating temperature -40 ~ +85 -- -- 0.03 %/ transient response deviation nominal input, 25% -50%-25% 50 % -75%-50% load step change -- 50 30 0 mv transient recovery time -- 0. 1 1 ms output short circuit protection nominal input continuous, self-recovery note: *1. ripple and noise tested with parallel cable method, please refer to dc-dc converter application notes for specific operation methods; * 2. with the load lower than 2 0%, the maximum ripple and noise of 3.3v/5v output products will be 1 0 0mvp-p, 12v/15v output products will be 2%vo .
dc/dc converter k78 lxx-1000r3 series 201 6 . 03.2 4 -a/0 page 2 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation physical specifications package dimensions 11.50mm*7. 5 0mm*17.50 mm weight 2.1 g (typ.) cooling method free air convection emc specifications emi ce cispr22/en55022 class b (see fig. 4 - for recommended circuit) re cispr22/en55022 class b (see fig. 4 - for recommended circuit) ems 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 1 kv (see fig. 4 - for recommended circuit) perf. criteria b surge iec/en 61000-4-5 line to line 1kv ( see fig. 4 - for recommended circuit ) perf. criteria b c s iec/en 61000-4-6 3vr.m . s perf. criteria a product characteristic curve output power percentage( %) 0 20 40 60 80 100 120 -40 0 40 85 120 the wind speed m s :0.8 / operating temperature ( ) 71 temperature derating curve fig. 1 general specifications item operating conditions min. typ. max. unit operating temperature derating if the temperature 71 (see fig. 1) -40 -- 85 storage temperature -55 -- 125 pin welding resistance temperature welding time : 10s (max.) -- -- 260 storage humidity non-condensing 5 -- 95 %rh switching frequency full load, nominal input k78 l 03 /05 - 10 00r3 420 520 620 khz others 580 680 780 mtbf mil-hdbk-217f@25 2000 -- -- k hours
dc/dc converter k78 lxx-1000r3 series 201 6 . 03.2 4 -a/0 page 3 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation design reference 1. typical application circuit +vin gnd gnd dc/d c 1 2 3 +vout c1 c2 positive output application circuit +vin gn d gn d dc/ dc 1 2 3 -vout c1 c2 negative output application circuit fig. 2 typical application circuit 1 3 2 +vin gnd -vout c2 gnd dc/dc 1 2 3 +vout c1 c3 c4 ldm dc/dc fig. 3 positive and negative output parallelling application circuit sheet 1 part no. c1/c3 (ceramic capacitor) c2/c4 (ceramic capacitor) k78 l 03- 10 00r3 10 f/50v 22 f/10v k78 l 05- 10 00r3 22 f/10v k78 l 12- 10 00r3 22 f/ 25 v k78 l 15- 10 00r3 22 f/25v note: 1. c1 and c2 ( c 3 and c 4) are required and should be connected close to the pin terminal of the module. 2. the capacitance of c1 and c2 ( c 3 and c 4) refer to sheet 1. 3. to reduce the output ripple furtherly . c2 and c4 can be increased properly if required, and tantalum or low esr electrolytic capacitors may also suffice. 4. when the products used as the circuit like figure 3, an inductor named as ldm up to 10 h i s recommended in the circuit to reduce the mutual interference. 5. cannot be used in parallel for output and hot swap. 2. emc solution-recommended circuit dc/dc vin l dm 2 c0 l dm 1 m ov fuse c3 v in gn d + +vo gn d l oad c2 c1 fig. 4 emc recommended circuit note: part in the fig. 4 is for ems test, part is for emi filtering; parts and can be added based on actual requirement. fuse mov ldm1 c0 c1/c2 c 3 ldm2 selected based on the actual input current from the customer s20k30 82 h 680 f /50v refer to sheet 1 4.7 f /50v 12 h 3. for more information please find the application notes on www.mornsun-power.com
dc/dc converter k78 lxx-1000r3 series 201 6 . 03.2 4 -a/0 page 4 of 4 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation notes: 1. packing information please refer to product packing information which can be downloaded from www.mornsun-power.com . packing bag number: 58 010116 ; 2. the maximum capacitive load offered were tested at nominal input voltage and full load ; 3. unless otherwise specified, parameters in this datasheet were measured under the conditions of ta=25 , humidity<75% with nominal input voltage and rated output load; 4. all index testing methods in this datasheet are based on our company s corporate standards; 5. we can provide product customization service, p lease contact our technicians directly for specific information; 6. specifications are subject to change without prior notice. mornsun guangzhou 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: 86-20-38601850-8801 fax: 86-20-38601272 e-mail: info@mornsun.cn dimensions and recommended layout
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