bel fuse inc. 206 van vo rst 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 vdc input 0. 59 v dc - 5.1 vdc / 3 a output ? non - isolated ? under - voltage lockout ? high efficiency ? wide trim ? fixed frequency ? ocp/scp ? low cost ? remote on/off ? wide input description the bel vrae - 03e1a 1 i s part of the non - isolated dc/ dc converter power module series. the modules use a sip package. these converters are available in a range of output voltages from 0.59 vdc to 5.1 v dc over a wide range of input voltage (vin = 4.5 vdc - 13.8 vdc).the efficiency is typically 91% at 3.3 vout (vin=12 vdc) at full load. part selection output voltage input voltage max. output current max. output power typical efficiency model number 0.5 9 v - 5.1 v 4.5 v - 13.8 v 3 a 15 w 91 % vra e - 0 3e 1a 1 note s : 1 . all part numbers above 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 supply voltage - 0. 3 v - 15 v ambient temperature 0 ? c - 70 ? c storage temperature - 55 ? c - 12 5 ? c note: all specifications are typical at 25 ? c unless otherwise stated. inp ut specifications parameter min typ max notes operating input voltage vo,set 3.63 v vo,set 3.63 v 4.5 v 7.0 v - - 13. 8 v 13.8 v input current (full load) - - tbd an input line fuse must always be used. input current (no load) - 40 ma 10 0 ma remote off input current - 10 ma 25 ma input reflected ripple current (pk - pk) - 3 0 ma 5 0 ma input reflected ripple current ( rms ) - 10 ma 20 ma with simulated source im pedance of 1000 nh, 5 hz to 20 mhz . use a 100 0 uf/25 v al - cap with esr=0.03 ohm max and 2*100 uf/25v tan - cap with esr=0.013 ohm max at 100 k hz@25c. i 2 t inrush current transient - - 1 a 2 s turn on voltage threshold 4.15 v 4.3 v 4.45 v turn off voltage threshold 3.7 v 4.1 v 4.3 v a 30.1k resistor is connected from enable to vin . note : all specifications are typical at 25 ? c unless otherwise stated. vra e - 0 3e1a 1 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 vdc - 13.8 vdc input 0. 59 v dc - 5.1 vdc / 3 a output output specific ations parameter min typ max notes output voltage set point - 2 %vo,set - 2 %vo,set vin= 12 v , lout=full load load regulation - 0.2%vo,set 0.5%vo,set line regulation - 0.2%vo,set 0.5%vo,set temperature regulation - 0.3%vo,set - output current 0 a - 3 a output dc current limit 3.6 a 5 a 7 a output ripple and noise (pk - pk) - 60 mv 10 0 mv output ripple and noise ( rms ) - 20 mv 4 0 mv 0 - 20 mhz bw, with a 10 uf tantalum capacitor and 1 uf ceramic capacitor at the output. short circuit surge trans ient - - 2 a 2 s vo 20 mv, hiccup mode turn on time - 3 ms 5 ms overshoot at turn on - - 1 % output capacitance 0 uf - 10 00 uf transient response 50% ~ 100% max load - 1 2 0 mv 20 0 mv settling time - 2 0 us 5 0 us 100% ~ 50% max load - 1 2 0 mv 20 0 mv settling time v o = all - 2 0 us 5 0 us di/dt= 0.25 a/us; vin= 12 v; with a 10 uf tantalum capacitor and a 1 uf ceramic capacitor at the output. note : all specifications are typical at normal input, full load at ta= 25c unless otherwise stated. genera l specifications parameter min typ max notes efficiency vo=5.0 v vo=3.3 v vo=2.5 v vo=1.8 v vo=1.5 v vo=1.2 v vo - 0.9 v 91 % 89% 87% 84% 83% 80% 73% 9 3 % 91 % 89 % 86 % 85 % 82 % 75 % - - - - - - - vin=12 v switching frequency - 5 0 0 k hz - output voltage tri m range (wide trim) 0.591 v - 5.1 v mtbf 7,579,849 hours calculated per bell core s r - 332 (i o = 80% load; vin= 12 v ; vo= 5 v; 0 lf m; t a = 25 ? c) dimensions inches (l w h) millimeters (l w h) 0.65 x 0. 41 x 0. 32 16.51 x 1 0.41 x 8.13 weight - 2 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 vdc - 13.8 vdc input 0. 59 v dc - 5.1 vdc / 3 a output control specifications parameter min typ max notes remote on/off signal low (unit off) - 0.3 v - 0.4 v signal high (unit on) 2. 0 v - 5.5 v remote on/off pin is open, the unit is off . output trim equations equation for calc ulating the trim resistor given the desired output voltage (vo) is shown below. the rtrim resistor should be connected between the trim pin and gnd pin . module vout trim gnd rtrimup ? ? ? k vo rtrim 591 . 0 182 . 1
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 vdc - 13.8 vdc input 0. 59 v dc - 5.1 vdc / 3 a output effici ency data efficiency vs. vo=0.591 v output current at room temperature 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0.3 0.75 1.5 2.25 3 output current (amp) e f f i c i e n c y ( % ) 4.5v 12.0v 13.8v efficiency vs. vo=3.3 v output current at room temperature 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95 1 0.3 0.75 1.5 2.25 3 output current (amp) e f f i c i e n c y ( % ) 4.5v 12.0v 13.8v efficiency vs. vo=5.0 v output current at room temperature 0.65 0.7 0.75 0.8 0.85 0.9 0.95 1 0.3 0.75 1.5 2.25 3 output current (amp) e f f i c i e n c y ( % ) 7v 12.0v 13.8v
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 vdc - 13.8 vdc input 0. 59 v dc - 5.1 vdc / 3 a output thermal derating curves vin=12 v, vout=5 v vin=12 v, vout=3.3 v vin=12 v, vout=2.5 v vin=12 v, vout=1.2 v vin=12 v, vout=0.59 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 vdc - 13.8 vdc input 0. 59 v dc - 5.1 vdc / 3 a output ripple and noise waveform 12 v input, 0.591 v output 12 v input, 3.3 v output 12 v input, 5.0 v output note: ripple a nd noise at full load, 0 - 20mhz bw, with a 10 uf tantalum cap and a 1 u f ceramic cap at the output, 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 vdc - 13.8 vdc input 0. 59 v dc - 5.1 vdc / 3 a output transient response waveforms 10 0 % to 5 0% load step at 12 v input, 0. 591 v output 5 0 % to 10 0 % load step at 12 v input, 0. 591 v output 10 0 % to 5 0% load step at 12 v input, 3.3 v output 5 0 % to 10 0 % load step at 12 v input, 3.3 v output 10 0 % to 5 0% load step at 12 v input, 5.0 v output 5 0 % to 10 0 % load step at 12 v input, 5.0 v outp ut note: transient response at di/dt= 0.25 a/us, with a 1uf ceramic cap and a 10 uf t antalum cap at the output , and ta=25 deg c.
? 200 9 bel fuse inc. specifications subje ct to change without notice. 0 41509 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, prest on 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 www.belfuse.com non - isolated dc/dc converters 4.5 vdc - 13.8 vdc input 0. 59 v dc - 5.1 vdc / 3 a output mechanical outline rohs com p liance complies with the european directive 2002/95/ec, calling fo r the elimination of lead and other hazardous substances from electronic products. pin connections pin function 1 enable 2 vin 3 gnd 4 vout 5 trim
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