bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.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 ? non - isolated ? wide output trim range ? high efficiency ? output o ver - v oltage s hut down ? fixed s witching f requency ? ocp/scp ? low cost ? low o utput r ipple ? excellent thermal performance ? power good signal ? wide input voltage range ? remote on/off description the vrp 1 - 2 0e1a c is a non - isolated dc/dc converter that operates over a wide range of input v oltage (v in = 4. 5 vdc ~ 13.8 vdc). this unit can provide a precisely r egulated output voltage from 0. 591 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 pr ovided in a n industry standard package. part selection output voltage input voltage max. output current max. output power typical efficiency model number active hi gh 0.591 v dc - 5.1 vdc 4.5 vdc - 13. 8 v dc 20 a 100 w 94 % vrp 1 - 20e1a c note s : 1 . all part numbers abo ve indicate rohs 6. change the second letter "r" to "7" for rohs 5 part numbers. 2. add ?g? suffix at the end of the model number s listed above to indicate ? tray packaging ? . absolute maximum ratings parameter min typ max notes input voltage (continuou s) - 0.3 v - 15 v output enable terminal voltage - 0.3 v - 15 v ambient temperature 0 ? c - 70 ? c storage temperature - 40 ? c - 1 2 5 ? c input specifications parameter min typ max notes input voltage vo 3.45 v vo 3.45 v 4. 5 v 1.3 *vo 12 v 12 v 1 3. 8 v 13.8 v input current (full load) - - 20 a an input line fuse must always be used. input current ( no load) - 150 ma 300 ma remote off input current - 50 ma - input reflected ripple current (pk - pk ) - 50 ma 100 ma inp ut reflected ripple current ( rms ) - 20 ma 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 thres hold - 3.9 v - a 30.1k resistor is connected from enable to vin note : all specifications are typical at 25 ? c unless otherwise stated. v r p 1 - 2 0 e 1a c rohs compliant rev. b
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.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 output specifications parameter min typ max notes output voltage set point accuracy - 1.5 % vo - +1.5 % vo vin= 12 v, iout=half load load regulation - - 1 % vo lin e regulation - - 0.5 % vo regulation over temperature ( 0 ? c to + 70 ? c) - - 1 % vo output current 0 a - 2 0 a current limit threshold - 15 0% io max - out put ripple and noise (pk - pk) - 4 0 mv 8 0 mv out put ripple and noise ( rms ) - 2 0 mv 40 mv test conditions: 0 - 20mhz bw, with a 1f ceramic capacito r and a 10uf tantalum cap at output. short circuit surge transient - 1 a 2 s 3 a 2 s turn on time - 2 ms 10 ms overshoot at turn on and off - - 5 % output c a pa citance 0 uf - 10 00 uf transient response 50 % ~ 75 % max load - 20 0 mv 30 0 mv settling time - - 5 0 us 75 % ~ 50% max load - 20 0 mv 30 0 mv settling time v o = all - - 5 0 us test conditions: 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 25 ? c unless otherwise stated. general specifications parameter min typ max 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 % - - - - - measured at vin= 12 v, full load. switc hing frequency - 5 00 k hz - output voltage trim range 0.591 v - 5 .1 v remote sense compensation - - 0.2 v vin=12 v, io=full load. mtbf tbd calculated per bell core s r - 332 (i o = 80%io max; vin=12 v; t a = 25 ? c) dimensions inches (l w h) millimete rs (l w h) 1.45 x 0.61 x 0. 40 36.83 x 15.49 x 10.15 weight - 9.7 g - note : all specifications are typical at 25 ? c unless otherwise stated.
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.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 control specifications parameter min typ max notes remote on/off (active high) signal low (unit off) - 0.3 v - 0.4 v signal high (unit on) 2 v - 5.5 v remote on/off pin is open, unit is o n . pwgood ( powergood ) 2.4 v - 6 v pwgood = high = power good - - 2 ma 0 v - 0.35 v pwgood = low = power not good - - 5 ma output trim equation the rt rim resistor should be connected between the trim pin and gnd pin . 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 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 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
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.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 thermal derating curve s 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 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 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 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 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 v out= 5 v 75 % - 5 0% load transients note: transient response at di/dt = 2.5 a/us, with 1 u f ceramic capacitor at the output , and ta=25 deg c .
? 200 9 bel fuse inc. specifications subject to change without notice. 0 41509 corporate far east europe bel fuse inc. bel fus e 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 te l 852 - 2328 - 5515 tel 44 - 1772 - 556601 www.belfuse.com fax 852 - 2352 - 3706 fax 44 - 1772 - 888366 www.belfuse.com www.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 mechanical outline rohs com p liance complies with the european d irective 2002/95/ec, calling for the elimination of lead and other hazardous substances from electronic products. pin connections pin function 1 vo ut 2 trim+ 3 gnd 4 pwgood 5 enable 6 vin 7 sense+ 8 sense -
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