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lsm2-t/30-d12 series dosa-smt, 30a pol dc/dc converters mdc_lsm2_t30_d12 series.c01 page 1 of 12 www.murata-ps.com www.murata-ps.com/support for full details go to www.murata-ps.com/rohs $ typical unit features ? ? non-isolated point-of-load (pol) converter, ideal for mixed voltage systems ? ? optimized for cpus, dsps and programmable logic - fpgas, asics ? ? 30 amps maximum output current ? ? user-selectable output voltage, 0.8vdc to 5.0vdc via trim resistor or voltage input ? ? wide input range 6vdc to 14vdc (vout <3.6v) ? ? selectable phased start-up sequencing and tracking ? ? excellent ef? ciency over output voltage range ? ? two models available, with or without additional ground/thermal pads ? ? fast settling, high di/dt slew rate, low output noise ? ? extensive self protection plus 'hiccup' short circuit auto recovery ? ? meets full safety and emission certi? cation todays high performance cpu and programma- ble logic devices demand superior performance from their power source. the lsm2-t/30-d12 series dc/dc converters offer up to 30 amps continuous output power with a user-selectable output of 0.8 to 3.6 volts. 25 amps output is available up to 5.0 v out . this tiny converter is ideal for applications with an input range of 6 to 14 volts dc. the pinout, trim system and mechanical footprint is compatible with the dosa (www.dosapower.com) industry standard. to ensure very high performance of powered logic systems, the lsm2-t/30-d12 features low output noise, high slew rates (20 amps/sec.), fast transient response (25 sec settling) and tight line and load regulation. many logic devices require controlled start up and tracking capabili- ties. the lsm2-t/30-d12 includes a sequence/ track function and prebias protection against external startup voltages. other features include no additional external components required, stable no-load operation, up to 10,000 f output load capacitance and no reverse conduction. system functions offer a remote on/off control, two additional ground pins (optional) and a load sense input. these converters meet agency standards ul/en 60950-1, can/csa- c22.2 60950-1, iec 60950-1, 2nd edition, and en55022/cispr22 emissions characterization. the automated surface mount assembly is fully compatible with rohs (reduction of hazard- ous substances) construction and attachment. the lsm2-t/30-d12 mounts to its host carrier board via re? ow-soldered pcb pads. the extraordinary ef? ciency means low heat and freedom from expensive, bulky heat sinks. a wealth of protection features include input under- voltage shutdown, output overcurrent current lim- iting, short circuit protection and overtemperature shutdown/recycle. description t ypical un it description
lsm2-t/30-d12 series dosa-smt, 30a pol dc/dc converters mdc_lsm2_t30_d12 series.c01 page 2 of 12 www.murata-ps.com/support performance specifications summary and ordering guide ? model family output input ef? ciency ? package (case/ pinout) v out (volts) i out ? (amps) power (watts) r/n (mvp-p) ? regulation (max.) ? v in nom. (volts) range ? (volts) i in ? (ma/a) typ. max. line load min. typ. lsm2-t/30-d12-c 0.8-5 30 125 15 25 0.2% 0.4% 12 6-14 210/11.1 92.5% 94% c71, p72 lsm2-t/30-d12r-c 0.8-5 30 125 15 25 0.2% 0.4% 12 6-14 210/11.1 92.5% 94% c71, p72 lsm2-t/30-d12r-c-cis 0.8-5 30 125 15 25 0.2% 0.4% 12 6-14 210/11.1 92.5% 94% c71, p72 part number structure ? typical @ ta=+25c. under nominal line voltage and full-load conditions unless noted. nominal output is +5 volts. ? ripple/noise (r/n) is tested/speci? ed over a 5 hz to 20 mhz bandwidth and may be reduced by adding external ? ltering. r/n is shown at v out <= 2.5 volts. ? these devices have no minimum load requirements and will regulate under no-load conditions. regulation speci? cations describe the output voltage deviation as the line voltage or load is varied from its nominal/midpoint value to either extreme. ? nominal line voltage, no-load/full-load conditions. ? lsm2-t/30-d12 ef? ciencies are shown at v out = 5 volts. ? i out max. is 30 amps with v out = 0.8 to 3.6 volts. with v out >3.6 volts, i out max. is 25 amps. ? if v out >3.63v, input range is 7-14v. ? lsm2-t/30-d12r-c-cis models use a 100k resistor between the gate and source of the internal on/off (enable) fet controlling the pwm. maximum rated output current in amps non-isolated smt output con? guration: l = unipolar low voltage nominal output voltage: 0.8-5.0 volts l sm2 - / d12 - t 30 r input voltage range: d12 = 6-14 volts (12v nominal) see note 7 above. additional grounds: blank = omitted r = installed c rohs6 hazardous substance compliant (does not claim eu rohs exemption 7bClead in solder) - connection diagram +input common additional ground/thermal pads pwm controller current sense reference & error amp v cc on/off control v track / sequence input v out trim +output +sense common *one phase of two is shown. * typical topology is shown.
lsm2-t/30-d12 series dosa-smt, 30a pol dc/dc converters mdc_lsm2_t30_d12 series.c01 page 3 of 12 www.murata-ps.com/support 0.36 9.1 2.030.13 0.0800.005 ref 0.020 min between mtg plane and components mtg plane 6 57 2 * view 1 34 bottom * 0.430 10.92 4.83 0.050 1.27 0.190 ref 8.76 0.345 0.114 2.90 0.190 [4.83] each 4 eq sp @ equals .760 [19.30] 1.22 0.048 29.90 1.177 3.05 1.91 .075 0.120 0.69 0.027 end view view side all pins coplanar within 4 mils 1.570.20 .0620.008 contacts typ isometric view pin #1 pin #1 this corner (far side) top view 1.30 33.0 0.53 13.5 33.5 1.32 0 0 0 14.0 0.55 2.16 0.085 1.47 0.058 3.56 0.140 ref 2.41 0.095 ref 2.41 0.095 ref 3.05 0.120 10.29 0.405 7.54 0.297 12.37 0.487 17.20 0.677 22.02 0.867 26.85 1.057 29.90 1.177 30.58 1.204 2.26 0.089 0.64 0.025 1 * * 2 34 5 6 7 pads (7 pls) 0.140 [3.56] x 0.095 [2.41] (viewed from top) recommended pad layout 0.095 [2.41] x 0.082 [2.08] pads (2 pls) for optional gnds additional ground/thermal pads (r models) the lsm2-t/30-d12 is optionally available with two additional ground pads for increased current handling and better heat transfer. these are indicated with the r designator in the model number, lsm2-t/30-d12 r -c. mps recommends that users lay out their pc boards to accept these two pads for larger current applications. please note that the derating curves for the r models accept higher temperature and greater current limits than units without the additional pads. to realize the additional current and thermal capacity of r models, you must have a substantial area of several square inches of copper etch ? ow- soldered to these pads and suf? cient feed-throughs or other means of con- ducting current. the r pads and the standard pads 1 and 2 are in parallel. if your application uses a standard dosa pad layout and you cannot connect to these ground pads, order model lsm2-t/30-d12-c without the r designa- tor. please observe the lower derating curves for standard, non-r models. mechanical specifications case c71 input/output connections p72 pad function 1 on/off control 2 +input 3 sequence/track in 4 common 5 +output 6 trim 7 sense in * additional ground (optional) smt contacts: copper alloy with 5" au (min.) over 50" ni (min.) component locations are typical. third angle projection dimensions are in inches (mm) shown for ref. only. components are shown for reference only. tolerances (unless otherwise speci?ed): .xx 0.02 (0.5) .xxx 0.010 (0.25) angles 2?
lsm2-t/30-d12 series dosa-smt, 30a pol dc/dc converters mdc_lsm2_t30_d12 series.c01 page 4 of 12 www.murata-ps.com/support shipping specifications third angle projection dimensions are in inches (mm) shown for ref. only. components are shown for reference only. tolerances (unless otherwise speci?ed): .xx 0.02 (0.5) .xxx 0.010 (0.25) angles 2? 4.00 (core) 101.6 16.5 0.65 6.7 0.27 0.80 20.3 0.08 2.0 0.945 pitch 24.00 1.59 ref 40.4 (250 units per reel) reel information feed (unwind) direction ------- 330.2 13.00 0.512 13.00 pick & place pickup (p/u) 6.5-7.5mm) (far side) this corner pin #1 pickup nozzle location ( 1.73 ref 44.0 feed (unwind) direction ------ (orientation) pin #1 typ 6mm max) pick-up nozzle location ( 0.157 typ 4.00 1.73 width 44.0 top cover tape 9.7 0.38 35.1 1.38
lsm2-t/30-d12 series dosa-smt, 30a pol dc/dc converters mdc_lsm2_t30_d12 series.c01 page 5 of 12 www.murata-ps.com/support performance and functional speci? cations see note 1 input input voltage range see ordering guide isolation not isolated. input and output commons are internally connected. start-up voltage 5.6 volts undervoltage shutdown 5 volts overvoltage shutdown none re? ected (back) ripple current (note 2) 50 ma pk-pk internal input filter type capacitive reverse polarity protection none, install external fuse. recommended external fuse 35 amps, fast blow input current: full load conditions see ordering guide inrush transient 0.4 a 2 sec. shutdown mode (off, uv, ot) 5 ma output short circuit 60 ma low line (v in =vmin, 5v out ) 18.9 amps remote on/off control (note 5) negative logic (no model suf? x) on = open pin or 0 to +0.55 v max. off = +3.0v min. to +v in max. current 1.3 ma max. output minimum loading no minimum load accuracy (50% load) 1.5 % of vnominal voltage adjustment range (note 13) see ordering guide overvoltage protection (note 20) none temperature coef? cient 0.01% per c of v out range ripple/noise (20 mhz bandwidth) see ordering guide and note 8 line/load regulation (see tech. notes) see ordering guide and note 10 ef? ciency see ordering guide maximum capacitive loading (note 15) cap-esr=0.001 to 0.01 ohms 5,000 f cap-esr >0.01 ohms 10,000 f current limit inception (note 19) 48 amps (cold startup) (98% of v out setting) 42 amps (after warm up) short circuit mode (note 6) short circuit current output 600 ma protection method hiccup autorecovery upon overload removal. (note 17) short circuit duration continuous, no damage (output shorted to ground) prebias startup (note 16) converter will start up if the external output voltage is less than vnominal. sequencing slew rate 2v per millisecond max. startup delay until sequence start 10 milliseconds min. tracking accuracy, rising input v out =100 mv of sequence in tracking accuracy, falling input v out =200 mv of sequence in remote sense to v out 0.5v max. (note 7) dynamic characteristics dynamic load response 60 sec to within 2% of ? nal value (50-100-50% load step, di/dt=20a/ sec) start-up time 10 msec for v out =nominal (v in on to v out regulated or on/off to v out ) switching frequency 430 khz environmental calculated mtbf (4) 3,917,077 hours operating temperature range -40 to +85c. (note 9) with derating see derating curves (note 12) storage temperature range -55 to +125c. thermal protection/shutdown +115celsius msl rating 2 relative humidity to 85%/+85c, non-condensing physical outline dimensions see mechanical speci? cations weight 0.28 ounces (7.8 grams) electromagnetic interference meets en55022/cispr22 (conducted and radiated) (may need external ? lter) safety meets ul/cul 60950-1, iec/en 60950-1, 2nd edition absolute maximum ratings input voltage (continuous or transient) +15 volts on/off control (negative logic) zero volts min. to +v in max. input reverse polarity protection none, install external fuse. output current (note 7) current-limited. devices can withstand sustained short circuit without damage. storage temperature -55 to +125 c. lead temperature see soldering guidelines absolute maximums are stress ratings. exposure of devices to greater than any of these conditions may adversely affect long-term reliability. proper operation under conditions other than those listed in the performance/functional speci? cations table is neither implied nor recommended. speci? cation notes: (1) speci? cations are typical at +25c, v in =nominal (+12v), v out =nominal (+5v), full load, external caps and natural convection unless otherwise indicated. tests at full power should supply substantial forced air? ow. all models are tested and speci? ed with external 0.1f and 10 f paralleled ceramic/tantalum output capacitors and a 22 f external input capacitor. all capacitors are low esr types. these capacitors are necessary to accommodate our test equipment and may not be required to achieve speci? ed performance in your applications. all models are stable and regulate within spec under no-load conditions. (2) input back ripple current is tested and speci? ed over a 5 hz to 20 mhz bandwidth. input ? lter- ing is c in =2 x 100 f tantalum, cbus=1000 f electrolytic, lbus=1 h. (3) note that maximum power derating curves indicate an average current at nominal input voltage. at higher temperatures and/or lower air? ow, the dc/dc converter will tolerate brief full current outputs if the total rms current over time does not exceed the derating curve. (4) mean time before failure is calculated using the telcordia (belcore) sr-332 method 1, case 3, ground ? xed conditions, tpcboard=+25c, full output load, natural air convection. (5) the on/off control may be driven with external logic or by applying appropriate external volt- ages which are referenced to -input common. the on/off control input should use either an open collector/open drain transistor or logic gate which does not exceed +v in . (6) short circuit shutdown begins when the output voltage degrades approximately 2% from the selected setting.
lsm2-t/30-d12 series dosa-smt, 30a pol dc/dc converters mdc_lsm2_t30_d12 series.c01 page 6 of 12 www.murata-ps.com/support speci? cation notes continued: (7) if sense is connected remotely at the load, up to 0.5 volts difference is allowed between the sense and +v out pins to compensate for ohmic voltage drop in the power lines. a larger volt- age drop may cause the converter to exceed maximum power dissipation. (8) output noise may be further reduced by adding an external ? lter. see i/o filtering and noise reduc- tion. (9) all models are fully operational and meet published speci? cations, including cold start at C40 c. (10) regulation speci? cations describe the deviation as the line input voltage or output load current is varied from a nominal midpoint value to either extreme. (11) other input or output voltage ranges will be reviewed under scheduled quantity special order. (12) maximum continuous power requires that all on-board components not exceed +128 c pack- age temperature. (13) do not exceed maximum power speci? cations when adjusting the output trim. (14) the r option includes extra ground pads. these pads offer two important features. in addition to carrying extra current, they also help dissipate additional heat. mps strongly recommends soldering the r pads to a thick ground plane with sizable area. the operating temperature speci cation listed above assumes that these additional ground pads are connected to a substantial ground plane below the converter ( at least several square inches). (15) the maximum output capacitive loads depend on the the equivalent series resistance (esr) of the external output capacitor. larger caps will reduce output noise but may slow transient response. (16) do not use pre-bias startup and sequencing together. if you do not use the track function, leave the seq/trk pin open. (17) after short circuit shutdown, if the load is partially removed such that the load still exceeds the overcurrent (oc) detection, the converter will remain in hiccup restart mode. (18) output current limiting is disabled at start up to avoid overcurrent shutdown while charging external bypass capacitors. output adjustments the lsm2-t/30-d12 series includes a special output voltage trimming fea- ture which is fully compatible with competitive units. the output voltage may be varied using a single trim resistor from the trim input to power common. use a precision, low-tempco resistor ( 100 ppm/ c) mounted close to the converter with short leads. be aware that the voltage accuracy is 1.5% (typical) therefore adjust this resistance to achieve your desired output. the ? xed trim resistors to set the output voltage are: v out 0.8v. 1.0v. 1.2v. 1.5v. 1.8v. rtrim (ohms) open 5.90 k 2.90 k 1.614 k 1.10 k v out 2.0v. 2.5v. 3.3v. 5.0v. rtrim (ohms) 0.90 k 605 380 185.71 voltage trim the lsm2 series may also be trimmed using an external low-noise voltage applied between the trim input and output common. be aware that the inter- nal load impedance looking into trim pin is below 1000 ohms and includes factors from the output voltage. therefore, use a low impedance source resistance in your external voltage reference. the ? xed trim voltages to set the output voltage are: v out (typ.) 0.80v. 1.0v. 1.2v. 1.5v. 1.8v. vtrim (volts) open 0.731v. 0.719v. 0.7v. 0.682v v out (typ.) 2.0 v. 2.5v. 3.3v. 5.0v. vtrim (volts) 0.669v. 0.638v. 0.589v. 0.484v. vtrim = 0.7434 C [(((vout C 0.7434) 1620) C 0.000035) x 100] where vout = desired voltage figure 1. trim resistor connections resistor trim equation r trim (in ohms) = --------------------- -100 1200 v out C 0.8 figure 2. voltage trim connections voltage reference, soldering guidelines murata power solutions recommends the speci? cations below when installing these converters. these speci? cations vary dependin g on the solder type. exceeding these speci? ca- tions may cause damage to the product. your production environment may differ therefore please thoroughly review these guidelin es with your process engineers. re? ow solder operations for surface-mount products (smt) for sn/ag/cu based solders: for sn/pb based solders: preheat temperature less than 1 oc. per second preheat temperature less than 1 oc. per second time over liquidus 45 to 75 seconds time over liquidus 60 to 75 seconds maximum peak temperature 260 oc. maximum peak temperature 235 oc. cooling rate less than 3 oc. per second cooling rate less than 3 oc. per second
lsm2-t/30-d12 series dosa-smt, 30a pol dc/dc converters mdc_lsm2_t30_d12 series.c01 page 7 of 12 www.murata-ps.com/support performance data: output voltage = 5 volts 5 8 6 3 6 8 7 3 7 8 8 3 8 8 9 3 9 8 1 2 . 6 6 4 . 3 1 5 . 9 7 7 . 6 2 9 . 2 8 1 0 . 9 1 2 . 6 1 4 . 2 1 5 . 9 1 7 . 6 1 9 . 2 2 0 . 9 2 2 . 5 2 4 . 2 lo a d c u r r e n t ( a m p s ) e f? ciency ( % ) v in = 7 v v in = 12 v v in = 14 v 12.00 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 ambient temperature (c) output current (amps) natural convection 100 lfm 200 lfm 300 lfm 400 lfm 500 lfm ef? ciency vs. line voltage and load current @ +25 c lsm2-t/30-d12r maximum current temperature derating at sea level (v in = 12v, transverse air? ow). extra ground pads installed. lsm2-t/30-d12 maximum current temperature derating at sea level (v in = 12v, transverse air? ow). no extra ground pads. 11.00 12.00 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 ambient temperature (c) output current (amps) natural convection 100 lfm 200 lfm 300 lfm 400 lfm 500 lfm output ripple & noise (v in = 12 v, i out = 20 a, c out = 10f || 1f, scope = 20 mhz bw) vertical = 20 mv/div., sweep = 1s/div. power-on startup (v in = 12 v, i out = 25 a) ch2 = 20 a/div. stepload transient response (v in = 12 v, 0-15a-0)
lsm2-t/30-d12 series dosa-smt, 30a pol dc/dc converters mdc_lsm2_t30_d12 series.c01 page 8 of 12 www.murata-ps.com/support performance data: output voltage = 3.3 volts 58 63 68 73 78 83 88 93 1 2 3 4 5 6 7 8 9 101112131415161718192021222324252627282930 o utput current (amps) ef?ciency (%) v in = 6 v v in = 12 v v in = 14 v 12.00 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 ambient temperature (c) output current (amps) natural convection 100 lfm 200 lfm 300 lfm 400 lfm ef? ciency vs. line voltage and load current (v in = 12v) @ +25 c lsm2-t/30-d12r maximum current temperature derating at sea level (v in = 12v, transverse air? ow). extra ground pads installed. lsm2-t/30-d12 maximum current temperature derating at sea level (v in = 12v, transverse air? ow). no extra ground pads. 12.00 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00 output current (amps) 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 ambient temperature (c) natural convection 100 lfm 200 lfm 300 lfm 400 lfm 500 lfm output ripple & noise (v in = 12 v, i out = 20 a, c out = 10f || 1f, scope = 20 mhz bw) vertical = 20 mv/div., sweep = 1s/div. power-on startup (v in = 12 v, i out = 25 a) stepload transient response (v in = 12 v, 0-15a-0)
lsm2-t/30-d12 series dosa-smt, 30a pol dc/dc converters mdc_lsm2_t30_d12 series.c01 page 9 of 12 www.murata-ps.com/support performance data: output voltage = 2.5 volts output ripple & noise (v in = 12 v, i out = 20 a, c out = 10f || 1f, scope = 20 mhz bw) vertical = 20 mv/div., sweep = 1s/div. stepload transient response (v in = 12 v, 0-15a-0) 58 63 68 73 78 83 88 93 1 2 3 4 5 6 7 8 9 101112131415161718192021222324252627282930 output current (amps) ef?ciency (%) v in = 6 v v in = 12 v v in = 14 v 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 ambient temperature (c) output current (amps) natural convection 100 lfm 200 lfm 300 lfm 400 lfm ef? ciency vs. line voltage and load current (v in = 12v) @ +25 c lsm2-t/30-d12r maximum current temperature derating at sea level (v in = 12v, transverse air? ow). extra ground pads installed. lsm2-t/30-d12 maximum current temperature derating at sea level (v in = 12v, transverse air? ow). no extra ground pads. 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 ambient temperature (c) output current (amps) natural convection 100 lfm 200 lfm 300 lfm 400 lfm
lsm2-t/30-d12 series dosa-smt, 30a pol dc/dc converters mdc_lsm2_t30_d12 series.c01 page 10 of 12 www.murata-ps.com/support performance data: output voltage = 1.8 volts load current (amps) ef?ciency (%) 56 61 66 71 76 81 86 91 1234 5 6 7 8 9 101112131415161718192021222324252627282930 v in = 6 v v in = 12 v v in = 14 v 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 output current (amps) ambient temperature (c) natural convection 100 lfm 200 lfm 300 lfm 400 lfm ef? ciency vs. line voltage and load current @ +25c lsm2-t/30-d12r maximum current temperature derating at sea level (v in = 12v, transverse air? ow). extra ground pads installed. lsm2-t/30-d12 maximum current temperature derating at sea level (v in = 12v, transverse air? ow). no extra ground pads. 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 ambient temperature (c) output current (amps) natural convection 100 lfm 200 lfm 300 lfm 400 lfm output ripple & noise (v in = 12 v, i out = 20 a, c out = 10f || 1f, scope = 20 mhz bw) vertical = 10 mv/div., sweep = 1s/div. power-on startup (v in = 12 v, i out = 25 a) stepload transient response (v in = 12 v, 0-15a-0)
lsm2-t/30-d12 series dosa-smt, 30a pol dc/dc converters mdc_lsm2_t30_d12 series.c01 page 11 of 12 www.murata-ps.com/support performance data: output voltage = 1.2 volts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 output current (amps) 49 54 59 64 69 74 79 84 89 ef?ciency (%) v in = 14 v v in = 12 v v in = 6 v ef? ciency vs. line voltage and load current @ +25c (v in = 12v) lsm2-t/30-d12r maximum current temperature derating (v in = 12v, transverse air? ow). extra ground pads installed. output ripple & noise (v in = 12 v, i out = 30 a, c out = 10f || 1f, scope bw = 20 mhz) power-on startup (v in = 12 v, i out = 30 a) stepload transient response (v in = 12 v, 0-15a-0) 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00 ambient temperature (c) output current (amps) natural convection 100 lfm 200 lfm 300 lfm 400 lfm
lsm2-t/30-d12 series dosa-smt, 30a pol dc/dc converters mdc_lsm2_t30_d12 series.c01 page 12 of 12 www.murata-ps.com/support murata power solutions, inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. the descriptions contained her ein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. speci? cations are subject to cha nge without notice. ?2013 murata power solutions, inc. murata power solutions, inc. 11 cabot boulevard, mans? eld, ma 02048-1151 u.s.a. iso 9001 and 14001 registered this product is subject to the following operating requirements and the life and safety critical application sales policy : refer to: http://www.murata-ps.com/requirements/ performance data: output voltage = 0.8 volts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 output current (amps) 42 47 52 57 62 67 72 77 82 87 ef?ciency (%) v in = 6 v v in = 12 v v in = 14 v ef? ciency vs. line voltage and load current @ +25c (v in = 12v) lsm2-t/30-d12r maximum current temperature derating (v in = 12v, transverse air? ow). extra ground pads installed. output ripple & noise (v in = 12 v, i out = 30 a, c out = 10f || 1f, scope bw = 20 mhz) power-on startup (v in = 12 v, i out = 30 a) stepload transient response (v in = 12 v, 0-15a-0) 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00 output current (amps) ambient temperature (c) natural convection 100 lfm 200 lfm 300 lfm 400 lfm

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