bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 1 non - isolate d dc/dc converters 4.5 v dc - 13. 8 v dc input 0. 591 v dc - 5.1 v dc / 20 a output apr . 14 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. features ? non - isolated ? wide output trim range ? high efficiency ? output o ver - v oltage s hut down ? fixed s witching f requency ? o cp/scp ? low cost ? low o utput r ipple ? excellent thermal performance ? power good signal ? wide input voltage range ? remote on/off ? class 1, category 2, non - isolated dc/dc converter (refer to ipc - 9592) applications ? networking ? c omputers and peripherals ? telecommunications description the vrp 1 - 2 0e 2 a c is a non - isolated dc/dc converter that operates over a wide range of input voltage (v in = 4. 5 vdc - 13.8 vdc). this unit can provide a precisely regulated output voltage from 0. 59 1 v dc to 5. 1 vdc and can deliver up to 2 0 a of output current. this unit is designed to be highly efficient and low cost. the converter is provided in an industry standard package. part selection output voltage input voltage max. output current max. out put power typical efficiency model number active high 0.591 vdc - 5 .1 vdc 4 .5 v dc - 13. 8 v dc 2 0 a 1 0 0 w 9 4 % vrp 1 - 2 0e 2ac notes : add ?g? suffix at the end of the model number to indicate tray packaging. part number explanation v r p 1 ? 2 0 e 2 a c 1 2 3 4 5 6 7 1 --- vertical mount 2 --- rohs 6, change ? r ? to ? 7 ? means rohs 5 3 --- series name, sip 4 --- series code , 2 0a output 5 --- wide input range ( 4.5 - 13.8 v) 6 --- wide output range ( 0 . 591 - 5 .1 v) 7 --- suffix vrp 1 - 2 0 e 2 a c rohs compliant preliminary rev. a
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 2 non - isolate d dc/dc converters 4.5 v dc - 13. 8 v dc input 0. 591 v dc - 5.1 v dc / 20 a output apr . 14 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. absolute maximum ratings parameter min typ max unit notes input voltage (continuous) - 0.3 - 15 v output enable terminal voltage - 0.3 - 15 v ambient te mperature 0 - 70 ? c storage temperature - 40 - 125 ? c note: ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may permanently damage the device. input specifications parameter min typ max unit notes input voltage vo < 3.45v vo >= 3.45 v 4.5 1.3*vo 12 12 13.8 13.8 v v input current (full load) - - 2 0 a an input line fuse must always be used. input current (no load) - 15 0 3 00 ma remote off input current - 5 0 - ma input reflected ripple current ( pk - pk ) - 50 100 ma input reflected ripple current ( rms ) - 20 40 ma use a 1000uf al - cap on the input. i 2 t inrush current transient - - 1 a 2 s turn - on voltage threshold - 4. 2 - v turn - off voltage threshold - 3.9 - v a 30.1k resistor is connected from enable to vin . note: all specificatio ns are typical at 25 ? c unless otherwise stated . output specifications parameter min typ max unit notes output voltage set point accuracy - 1.5 - 1.5 % v o,set v in=12v, lout=half load load regulation - - 1 %vo,set li ne regulation - - 0.5 %vo,set regulation over temperature ( 0 ? c to + 70 ? c ) - - 1 %vo,set output current 0 - 20 a current limit threshold - 150 - % io max output rippl e and noise (pk - pk) - 40 80 mv output ripple and noise ( rms ) - 2 0 4 0 mv 0 - 20mhz bw, with a 1f ceramic capacitor and a 10uf tantalum cap at output. short circuit surge transient - 1 3 a 2 s
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 3 non - isolate d dc/dc converters 4.5 v dc - 13. 8 v dc input 0. 591 v dc - 5.1 v dc / 20 a output apr . 14 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. output specifications (continued) parameter min typ max unit notes turn on time - 2 10 ms overshoot at turn on and off - - 5 % output capacitance 0 - 1000 uf transient response overshoot - 200 300 mv v50 %~ 75 % of max load settling time - - 50 us overshoot - 200 300 mv v75 %~ 50 % of max load settling time vo= all - - 50 us di/dt = 2.5 a/us; vin = 12 v; with 10 uf tantalum cap and 1 u f ceramic at the output, ta=25 ? c note : all specifications are typical at 25c unless otherwise stated . general specifications parameter min typ max uni t notes efficiency vo= 5.0 v vo=3.3 v vo=2.5 v vo=1. 5 v vo=0. 591 v - - - - - 94 92 90 85 70 - - - - - % % % % % vin=12 v, full load switching frequency - 500 - khz output voltage trim range 0.591 - 5.1 v remote sense compensation - - 0.2 v vin=12 v , io=full load weight - 9.7 - g mtbf tbd - calculated per bell core s r - 332 (i o = 80%iomax; vin=12 v; t a = 25 ? c) dimensions inches (l w h) millimeters (l w h) 1.45 x 0.61 x 0. 40 36.83 x 15.49 x 10.15 - note : all specifications are typical at 25 ? c unless otherwise stated. control specifications parameter min typ max unit notes remote on/off (active high) signal low (unit off) - 0.3 - 0.4 v signal high (unit on) 2 - 5.5 v remote on/off pin is open, unit is o n . pwgood (powergood) 2.4 - 6 v pwgood = high = power good - - 2 ma 0 - 0.35 v pwgood = low = power not good - - 5 ma
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 4 non - isolate d dc/dc converters 4.5 v dc - 13. 8 v dc input 0. 591 v dc - 5.1 v dc / 20 a output apr . 14 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. output trim equation the rt rim resistor should be connected between the trim pin and gnd pin . e fficiency data module 5v 80.0% 82.0% 84.0% 86.0% 88.0% 90.0% 92.0% 94.0% 96.0% 98.0% 100.0% 0.0 2.0 5.0 10.1 15.0 20.00 output current e f f i c i e n c y 7v 12v 14v module 2.5v 70.0% 75.0% 80.0% 85.0% 90.0% 95.0% 100.0% 0.0 2.0 5.0 10.0 15.0 20.0 output current e f f i c i e n c y 4.5v 12v 14v module 0.591v 40.0% 45.0% 50.0% 55.0% 60.0% 65.0% 70.0% 75.0% 80.0% 85.0% 90.0% 0.0 2.0 5.0 10.0 15.0 20.0 output current e f f i c i e n c y 4.5v 12v 14v rtrim module vout gnd sense trim ? ? ? ? ? ? ? ? 591 . 0 182 . 1 vo r trim k
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 5 non - isolate d dc/dc converters 4.5 v dc - 13. 8 v dc input 0. 591 v dc - 5.1 v dc / 20 a output apr . 14 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. thermal derating cur ves vout=0.591v vout=1.2 v vout=2.5 v vout=3.3 v vout=5 v
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 6 non - isolate d dc/dc converters 4.5 v dc - 13. 8 v dc input 0. 591 v dc - 5.1 v dc / 20 a output apr . 14 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. ripple and noise waveforms 12 vdc input, 0. 591 vdc output 12 vdc input, 2.5 vdcoutput 12 vdc input, 5 vdc output note: ripple and noise at full load, 0 - 20 mhz bw, with a 10 uf tantalum cap and a 1 uf ceramic cap, and ta=25 deg c.
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 7 non - isolate d dc/dc converters 4.5 v dc - 13. 8 v dc input 0. 591 v dc - 5.1 v dc / 20 a output apr . 14 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. transient response waveforms vout= 2.5 v 5 0% - 75 % load transients vout= 2.5 v 75 % - 5 0% load transients vout= 5 v 5 0% - 75 % load transients vout= 5 v 75 % - 5 0% load transients note: transient response at di/dt = 2.5 a/us, with 1 uf ceramic capacitor at the output, and ta=25 deg c .
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 8 non - isolate d dc/dc converters 4.5 v dc - 13. 8 v dc input 0. 591 v dc - 5.1 v dc / 20 a output apr . 14 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. mechanical outline note: this module is recommended and compatible with pb - free wave soldering and must be soldered using a peak solder temperature of no more than 26 0 oc for less th a n 5 seconds . note : 1 ) all pins: material - copper a lloy ; finish ? 3 micro inches minimum gold over 50 m icro inches minimum nickel plate . 2 ) undimensioned components are shown for visual reference only. 3 ) all dimensions in inches (mm) ; tolerances: x.xx +/ - 0.02 in. (x.x +/ - 0.5mm) x.xxx +/ - 0.010 in. (x.xx +/ - 0.25mm) . pin connections pin function 1 vo ut 2 trim+ 3 gnd 4 pwgood 5 enable 6 vin 7 sense+ 8 sense -
? 20 1 1 bel fuse inc. specifications subject to change without notice. 041411 9 corporate far east europe bel fuse inc. bel fuse ltd. bel fuse europe ltd. 206 van vorst street 8f/ 8 luk hop street preston technology management centre jersey city, nj 07302 san po kong marsh lane, suite g7, preston tel 201 - 432 - 0463 kowloon, hong kong lancashire, pr1 8ud, u. k. fax 201 - 432 - 9542 tel 852 - 2328 - 5515 tel 44 - 1772 - 556601 www.belfuse.com fax 852 - 2352 - 3706 fax 44 - 1772 - 888366 www.belfuse.com w ww.belfuse.com non - isolated dc/dc converters 4.5 v dc - 13. 8 v dc input 0. 591 v dc - 5.1 v dc / 20 a output apr . 14 , 20 11 bel power inc. , a subsidiary of bel fuse inc. revision history date revi sion changes detail approval 20 11 - 04 - 14 p a first release jz wang rohs com p liance complies with the european directive 2002/95/ec, calling for the elimination of lead and other h azardous substances from electronic products.
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