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1 of 18 semtech ts30011/12/13 triune products features ?f fixedfoutputfvoltagefchoices:f1.5v,f1.8v,f2.5v,f3.3v,fandf5vf withf+/-f2%foutputftolerancef ?f adjustablefversionfoutputfvoltagefrange:f0.9vftof(vccfCf 1v)fwithf+/-1.5%freference. ?f widefinputfvoltagefrange f ? ts30011/12:f4.5vftof24vf(26.4vfabsfmax f ? ts30013:f4.5vftof18vf(20vfabsfmax) ?f 1mhzf+/-f10%ffxedfswitchingffrequencyf ?f continuousfoutputfcurrent:f1af(ts30011),f2af(ts30012)f andf3af(ts30013) ?f highfefciencyfCfupftof95%f ?f currentfmodefpwmfcontrolfwithfpfmfmodefforfimprovedf lightfloadfefciency ?f voltagefsupervisorfforfvoutfreportedfatfthefpgfpin ?f inputfsupplyfunderfvoltageflockout ?f softfstartfforfcontrolledfstartupfwithfnofovershoot ?f fullfprotectionfforfover-current,fover-temperature,fandf voutfover-voltagef ?f lessfthanf10uafinfstandbyfmodef ?f lowfexternalfcomponentfcount f applications ?f on-cardfswitchingfregulators ?f set-topfbox,fdvd,flcd,fledfsupply ?f industrialfpowerfsupplies high efciency 1a/2a/3a current-mode synchronous buck dc/dc converter, 1mhz description thefts30011f(1a),fts30012f(2a)fandfts30013f(3a)farefdc/dcf synchronousfswitchingfregulatorfwithffullyfintegratedfpowerf switches,finternalfcompensation,fandffullffaultfprotection.ffthef switchingffrequencyfoff1mhzfenablesfthefusefoffsmallfflterf componentsfresultingfinfminimalfboardfspacefandfreducedf bomfcosts. thefts30011/12/13futilizesfcurrentfmodeffeedbackfinfnormalf regulationfpwmfmode.ffwhenfthefregulatorfisfplacedfinf standbyf(enfisflow),fthefdevicefdrawsflessfthanf10uafquiescentf current. thefts30011/12/13fintegratesfafwidefrangefoffprotectionf circuitryfincludingfinputfsupplyfunder-voltageflockout,foutputf voltagefsoftfstart,fcurrentflimit,fandfthermalfshutdown. thefts30011/12/13fincludesfsupervisoryfreportingfthroughf thefpgf(powerfgood)fopenfdrainfoutputftofinterfacefotherf componentsfinfthefsystem. summary specifcation ?f junctionfoperatingftemperatureff-40fcfftof125fc ?f packagedfinfaf16pinfqfnf(3x3) typical application circuit ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
2 of 18 semtech pin confguration figure 1: 16 lead 3x3 qfn, top view pin description pin # pin symbol function description 1 vsw switching voltage node connected to 4.7uh (typical) inductor 2 vcc input voltage input voltage 3 vcc input voltage input voltage 4 gnd gnd primary ground for the majority of the device except the low-side power fet 5 fb feedback input regulator fb voltage. connects to vout for fxed mode and the output resistor divider for adjustable mode 6 nc no connect not connected 7 nc no connect not connected 8 pg power good output open-drain output 9 en enable input above 2.2v the device is enabled. gnd the pin to put device in standby mode. includes internal pull-up 10 bst bootstrap capacitor bootstrap capacitor for the high-side fet gate driver. a ceramic capacitor in the range 15 nf - 200 nf from bst pin to vsw pin 11 vcc input voltage input voltage 12 vsw switching voltage node connected to 4.7uh (typical) inductor 13 vsw switching voltage node connected to 4.7uh (typical) inductor 14 pgnd power gnd gnd supply for internal low-side fet/integrated diode 15 pgnd power gnd gnd supply for internal low-side fet/integrated diode 16 vsw switching voltage node connected to 4.7uh (typical) inductor 17 pad power pad power gnd ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
3 of 18 semtech functional block diagrams figure 2: ts30011/12/13 block diagram figure 3: monitor & control logic functionality ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
4 of 18 semtech absolute maximum ratings thermal characteristics recommended operating conditions overfoperatingffreeCairftemperaturefrangefunlessfotherwisefnoted(1,f2) parameter value units vcc -0.3ftof26.4ff(-0.3ftof20fforfts30013) v bst -0.3ftof(vcc+6) v vsw -1ftof26.4ff(-1ftof20fforfts30013) v en,fpg,fb -0.3ftof6 v electrostaticfdischargefCfhumanfbodyfmodel +/-2k v electrostaticfdischargefCfchargefdevicefmodel +/-500 v leadftemperaturef(soldering,f10fseconds) 260 o c (1)f stressesfbeyondfthoseflistedfunderfabsolutefmaximumfratingsfmayfcausefpermanentfdamageftofthefdevice.fthesefarefstressfratingsfonlyfandffunctionalf operationfoffthefdevicefatftheseforfanyfotherfconditionsfbeyondfthosefindicatedfunderfrecommendedfoperatingfconditionsfisfnotfimplied.ffexposureftof absoluteCmaximumCratedfconditionsfforfextendedfperiodsfmayfafectfdevicefreliability. (2)f allfvoltagefvaluesfarefwithfrespectftofnetworkfgroundfterminal. parameter symbol value units thermalfresistancefjunctionftofairf(notef1) ja 34.5 o c/w thermalfresistancefjunctionftofcasef(notef1) jc 2.5 o c/w storageftemperaturefrange t stg -65ftof150 o c maximumfjunctionftemperature t jfmax 150 o c operatingfjunctionftemperaturefrange t j -40ftof125 o c notef1:ffassumesf16ldf3x3fqfnfwithfhi-kfjedecfboardfandf13.5finch 2 foff1fozfcufandf4fthermalfviasfconnectedftofpad parameter symbol min type max units inputfoperatingfvoltage vcc 4.5 12 24ff(18fforfts30013) v bootstrapfcapacitor c bst 15 22 200 nf outputffilterfinductorftypicalfvaluef(notef1) l out 3.76 4.7 5.64 uh outputffilterfcapacitorftypicalfvaluef(notef2) c out 33 44ff(2fxf22) uf outputffilterfcapacitorfesr c out-esr 2 100 m inputfsupplyfbypassfcapacitorftypicalfvaluef(notef3) c bypass 8 10 uf notef1:ff f forfbestfperformance,fanfinductorfwithfafsaturationfcurrentfratingfhigherfthanfthefmaximumfvoutfloadfrequirementfplusfthefinductorfcurrentfripple. notef2: f forfbestfperformance,faflowfesrfceramicfcapacitorfshouldfbefused. notef3: f forfbestfperformance,faflowfesrfceramicfcapacitorfshouldfbefused.ffiffcbypassfisfnotfaflowfesrfceramicfcapacitor,faf0.1uffceramicfcapacitorfshouldfbef addedfinfparallelftofcbypass ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
5 of 18 semtech electrical characteristics electricalfcharacteristics,ft j f=f-40cftof125c,fv cc f=f12vf(unlessfotherwisefnoted) parameter symbol conditions min. typ. max. units vcc supply voltage inputfsupplyfvoltage v cc 4.5 24 (18fforf f ts30013) v quiescentfcurrentffnormalfmode i cc-norm v cc f=f12v,fi load f=f0a 5.2 ma quiescentfcurrentfnormalfmodef f Cfnon-switching i cc-noswitch v cc =12v,fi load =0a,fnon-switching 2.3 ma quiescentfcurrentffstandbyfmode i cc-stby v cc f=f12v,fenf=f0v 5 10 a vcc under voltage lockout inputfsupplyfunderfvoltagefthreshold v cc-uv v cc fincreasing 4.3 4.5 v inputfsupplyfunderfvoltagefthresholdf hysteresis v cc-uv_hyst 350 mv osc oscillatorffrequency f osc 0.9 1 1.1 mhzf pg open drain output pgfreleaseftimer t pg 10 ms high-levelfoutputfleakage i oh-pg v pg f=f5v 0.5 a low-levelfoutputfvoltage v ol-pg i pg f=f-0.3ma 0.01 v en input voltage thresholds highflevelfinputfvoltage v ih-en 2.2 v lowflevelfinputfvoltage v il-en 0.8 v inputfhysteresis v hyst-en 480 mv inputfleakage i in-en v en =5v 3.5 a v en =0v -1.5 a thermal shutdown thermalfshutdownfjunctionftemperature tsd note:fnotftestedfinfproduction 150 170 c tsdfhysteresis tsd hyst note:fnotftestedfinfproduction 10 c ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
6 of 18 semtech regulator characteristics electricalfcharacteristics,ft j f=f-40cftof125c,fvccf=f12vf(unlessfotherwisefnoted) parameter symbol conditions min. typ. max. units switch mode regulator: l=4.7uh and c=2 x 22uf outputfvoltageftolerancefinfpwmfmode v out-pwm i load f=1a v out fCf2% v out v out f+f2% v outputfvoltageftolerancefinfpfmfmode v out-pfm i load ff=f0a v out fCf1% v out f+f1% v out f+f3% v highfsidefswitchfonfresistance r dson i vsw f=f-1af(notef1) 180 m lowfsidefswitchfonfresistance i vsw f=f1af(notef1) 120 m outputfcurrent i out ts30013f(notef4) 3 a ts30012f(notef4) 2 a ts30011 1 a overfcurrentfdetectf (highfsidefswitchfcurrent) i ocd ts30013 3.4 3.8 4.4 a ts30012 2.4 2.8 3.4 a ts30011 1.4 1.8 2.4 a feedbackfreferencef(adjustablefmode) fb th (notef3) 0.886 0.9 0.914 v feedbackfreferenceftolerance fb th-tol (notef3) -1.5 1.5 % softfstartframpftime t ss 4 ms pfmfmodeffbfcomparatorfthreshold fb th-pfm v out f+f1% v v out funderfvoltagefthreshold v out-uv 91%f v out 93%fv out 95%fv out v out funderfvoltagefhysteresis v out-uv_hyst 1.5%fv out v out foverfvoltagefthreshold v out-ov 103%fv out v out foverfvoltagefhysteresis v out-ov_hyst 1%fv out maxfdutyfcycle duty max (notef2) 95% 97% 99% notef1:ffr dson fisfcharacterizedfatf1afandftestedfatflowerfcurrentfinfproduction. notef2:ffregulatorfvswfpinfisfforcedfoffforf240nsfeveryf8fcyclesftofensurefthefbstfcapfisfreplenished. notef3:ffforfthefadjustablefversion,fthefratiofoffvcc/voutfcannotfexceedf16.f notef4:ffbasedfonfoverfcurrentfdetectftesting ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
7 of 18 semtech functional description thefts30011/12/13fcurrent-modefsynchronousfstep-downf powerfsupplyfproductfisfidealfforfusefinfthefcommercial,f industrial,fandfautomotivefmarketfsegments.ffitfincludesf fexibilityftofbefusedfforfafwidefrangefoffoutputfvoltagesfandf isfoptimizedfforfhighfefciencyfpowerfconversionfwithflowf rdsonfintegratedfsynchronousfswitches.faf1mhzfinternalf switchingffrequencyffacilitatesflowfcostflcfflterfcombinations.ff additionally,ftheffxedfoutputfversionsfenablefafminimumf externalfcomponentfcountftofprovidefafcompletefregulationf solutionfwithfonlyf4fexternalfcomponents:fanfinputfbypassf capacitor,fanfinductor,fanfoutputfcapacitor,fandfthefbootstrapf capacitor.fthefregulatorfautomaticallyftransitionsfbetweenf pfmfandfpwmfmodeftofmaximizefefciencyfforfthefloadf demand.f thefts30011/12/13fwasfdesignedftofprovidefthesefsystemf benefts: ?f reducedfboardfrealfestate ?f lowerfsystemfcost f ? lowerfcostfinductor f ? lowfexternalfpartsfcount ?f easefoffdesign f ? billfoffmaterialsfandfsuggestedfboardflayoutfprovided f ? powerfgoodfoutput f ? integratedfcompensationfnetwork f ? widefinputfvoltagefrange ?f robustfsolution f ? overfcurrent,foverfvoltagefandfoverftemperature f f protection detailed pin description unregulated input, vcc thisfterminalfisfthefunregulatedfinputfvoltagefsourcefforfthef ic.ffitfisfrecommendedfthatfaf10uffbypassfcapacitorfbefplacedf closeftofthefdevicefforfbestfperformance.ffsincefthisfisfthefmainf supplyfforfthefic,fgoodflayoutfpracticesfneedftofbeffollowedfforf thisfconnection.f bootstrap control, bst thisfterminalfwillfprovidefthefbootstrapfvoltagefrequiredfforf thefupperfinternalfnmosfswitchfoffthefbuckfregulator.fanf externalfceramicfcapacitorfplacedfbetweenfthefbstfinputf terminalfandfthefvswfpinfwillfprovidefthefnecessaryfvoltagef forfthefupperfswitch.finfnormalfoperationfthefcapacitorfisf re-chargedfonfeveryflowfsidefsynchronousfswitchingfaction.f infthefcasefoffwherefthefswitchfmodefapproachesf100%fdutyf cyclefforfthefhighfsideffet,fthefdevicefwillfautomaticallyfreducef thefdutyfcyclefswitchftofafminimumfofftimefonfeveryf8thfcyclef tofallowfthisfcapacitorftofre-charge.fffff sense feedback, fb f thisfisfthefinputfterminalfforfthefoutputfvoltageffeedback.ff forftheffxedfmodefversions,fthisfshouldfbefhookedfdirectlyf tofv out. ffthefconnectionfonfthefpcbfshouldfbefkeptfasfshortf asfpossible,fandfshouldfbefmadefasfclosefasfpossibleftofthef capacitor.fftheftracefshouldfnotfbefsharedfwithfanyfotherf connection.f(figuref23) forfadjustablefmodefversions,fthisfshouldfbefconnectedftof thefexternalfresistorfdivider.ftofchoosefthefresistors,fusefthef followingfequation:ff v out f=f0.9f(1f+fr top /r bot ) thefinputftoftheffbfpinfisfhighfimpedance,fandfinputfcurrentf shouldfbeflessfthanf100na.ffasfafresult,fgoodflayoutfpracticesf arefrequiredfforftheffeedbackfresistorsfandffeedbackftraces.f whenfusingfthefadjustablefversion,ftheffeedbackftracefshouldf befkeptfasfshortfasfpossiblefandfminimumfwidthftofreducef strayfcapacitancefandftofreducefthefinjectionfoffnoise. forfthefadjustablefversion,fthefratiofoffvcc/v out fcannotf f exceedf16. ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
8 of 18 semtech switching output, vsw thisfisfthefswitchingfnodefoffthefregulator.ffitfshouldfbef connectedfdirectlyftofthef4.7uhfinductorfwithfafwide,fshortf tracefandftofonefendfoffthefbootstrapfcapacitor.ffitfisfswitchingf betweenfvccfandfpgndfatfthefswitchingffrequency.ff ground, gnd thisfgroundfisfusedfforfthefmajorityfoffthefdevicefincludingfthef analogfreference,fcontrolfloop,fandfotherfcircuits.ff power ground, pgnd thisfisfafseparatefgroundfconnectionfusedfforftheflowfsidef synchronousfswitchftofisolatefswitchingfnoiseffromfthefrestfoff thefdevice.ff(figuref23) enable, high-voltage, en thisfisfthefinputfterminalftofactivatefthefregulator.ffthefinputf thresholdfisfttl/cmosfcompatible.fffitfalsofhasfanfinternalfpull- upftofensurefafstablefstatefiffthefpinfisfdisconnected.f power good output, pg thisfisfanfopenfdrain,factiveflowfoutput.ffthefswitchedfmodef outputfvoltagefisfmonitoredfandfthefpgflinefwillfremainflowf untilfthefoutputfvoltagefreachesfthefvout-uvfthreshold.fff oncefthefinternalfcomparatorfdetectsfthefoutputfvoltagef isfabovefthefdesiredfthreshold,fanfinternalfdelayftimerfisf activatedfandfthefpgflinefisfde-assertedftofhighfoncefthisf delayftimerfexpires.ffinfthefeventfthefoutputfvoltagefdecreasesf belowfvout-uv,fthefpgflinefwillfbefassertedflowfandfremainf lowfuntilfthefoutputfrisesfabovefvout-uvfandfthefdelayftimerf timesfout.ffseeffiguref2fforfthefcircuitfschematicfforfthefpgf signal. internal protection details internal current limit thefcurrentfthroughfthefhighfsideffetfisfsensedfonfafcyclef byfcyclefbasisfandfiffcurrentflimitfisfreached,fitfwillfabbreviatef thefcycle.ffinfaddition,fthefdevicefsensesftheffbfpinftofidentifyf hardfshortfconditionsfandfwillfdirectfthefvswfoutputftofskipf4f cyclesfiffcurrentflimitfoccursfwhenffbfisflow.fthisfallowsfcurrentf builtfupfinfthefinductorfduringfthefminimumfonftimeftofdecayf sufciently.ffcurrentflimitfisfalwaysfactivefwhenfthefregulatorf isfenabled.ffsoftfstartfensuresfcurrentflimitfdoesfnotfpreventf regulatorfstartup.ff underfextendedfoverfcurrentfconditionsf(suchfasfafshort),f thefdevicefwillfautomaticallyfdisable.ffoncefthefoverfcurrentf conditionfisfremoved,fthefdevicefreturnsftofnormalfoperationf automatically.ff(alternatelyftheffactoryfcanfconfgurefthef devicesfnvmftofshutdownfthefregulatorfiffanfextendedfoverf currentfeventfisfdetectedfandfrequirefaftogglefoffthefenablef pinftofreturnfthefdeviceftofnormalfoperation.) thermal shutdown ifftheftemperaturefoffthefdiefexceedsf170cf(typical),fthefvswf outputsfwillftri-stateftofprotectfthefdeviceffromfdamage.ffthef pgfandfallfotherfprotectionfcircuitryfwillfstayfactiveftofinformf thefsystemfofftheffailurefmode.foncefthefdevicefcoolsftof160cf (typical),fthefdevicefwillfstartfupfagain,ffollowingfthefnormalf softfstartfsequence.fiffthefdevicefreachesf170c,fthefshutdown/ restartfsequencefwillfrepeat. reference soft start thefreferencefinfthisfdevicefisframpedfatfafratefoff4msftof preventfthefoutputffromfovershootfduringfstartup.ffthisframpf restartsfwheneverftherefisfafrisingfedgefsensedfonfthefenablef pin.ffthisfoccursfinfbothftheffxedfandfadjustablefversions.ff duringfthefsoftfstartframp,fcurrentflimitfisfstillfactive,fandfwillf stillfprotectfthefdevicefinfcasefoffafshortfonfthefoutput.ff output overvoltage iffthefoutputfoffthefregulatorfexceedsf103%foffthefregulationf voltage,fthefvswfoutputsfwillftri-stateftofprotectfthefdevicef fromfdamage.fffthisfcheckfoccursfatfthefstartfoffeachfswitchingf cycle.ffiffitfoccursfduringfthefmiddlefoffafcycle,fthefswitchingf forfthatfcyclefwillfcomplete,fandfthefvswfoutputsfwillftri-statef atfthefbeginningfoffthefnextfcycle.ff vcc under-voltage lockout thefdevicefisfheldfinfthefoffstatefuntilfvccfreachesf4.5vf (typical).ftherefisfaf500mvfhysteresisfonfthisfinput,fwhichf requiresfthefinputftoffallfbelowf4.0vf(typical)fbeforefthefdevicef willfdisable.ffff ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
9 of 18 semtech typical performance characteristics t jf =f-40cftof125c,fvccf=f12vf(unlessfotherwisefnoted) figure 4. startup response figure 5. 100ma to 1a load step (v cc =12v, v out =1.8v) figure 6. 100ma to 2a load (v cc =12v, v out =1.8v) figure 7. 100ma to 1a load step (v cc =12v, v out =3.3v) figure 8. 100ma to 2a load step (v cc =12v, v out =3.3v) figure 9. line transient response (v cc =12v, v out =3.3v) 1v/div 5v/div 100mv/div 1a/div 100mv/div 2a/div 50mv/div 500ma/div 100mv/div 1a/div 50mv/div 5v/div ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
10 of 18 semtech typical performance characteristics continued t jf =f-40cftof125c,fvccf=f12vf(unlessfotherwisefnoted) figure 10. load regulation figure 11. line regulation (i out =1a) figure 12. efciency vs. output current ( v out = 1.8v) figure 13. efciency vs. output current ( v out = 3.3v) figure 14. efciency vs. output current ( v out = 5v) figure 15. efciency vs. input voltage (v out = 3.3v) ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
11 of 18 semtech typical performance characteristics continued t jf =f-40cftof125c,fvccf=f12vf(unlessfotherwisefnoted) figure 16. standby current vs. input voltage figure 17. standby current vs. temperature figure 18. output voltage vs. temperature figure 19. oscillator frequency vs. temperature (i out =300ma) figure 20. quiescent current vs. temperature (no load) figure 21. input current vs. temperature (no load, no switching) ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
12 of 18 semtech typical application schematic figure 22: ts30011/12/13 application schematic afminimalfschematicfsuitablefforfmostfapplicationsfisfshownfonfpagef1.fffiguref22fincludesfoptionalfcomponentsfthatfmayfbef consideredftofaddressfspecifcfissuesfasflistedfinfthefexternalfcomponentfselectionfsection. pcb layout forfproperfoperationfandfminimumfemi,fcarefmustfbeftakenfduringfpcbflayout.fanfimproperflayoutfcanfleadftofissuesfsuchfasfpoorf stabilityfandfregulation,fnoisefsensitivityfandfincreasedfemifradiation.f(fguref23)ffthefmainfguidelinesfareftheffollowing: ?f provideflowfinductivefandfresistivefpathsfforfloopsfwithfhighfdi/dt, ?f provideflowfcapacitivefpathsfwithfrespectftofallfthefotherfnodesfforftracesfwithfhighfdi/dt, ?f sensitivefnodesfnotfassignedftofpowerftransmissionfshouldfbefreferencedftofthefanalogfsignalfgroundf(gnd)fandfbefalways f f separatedffromfthefpowerfgroundf(pgnd). thefnegativefendsfoffcbypass,fcoutfandfthefschottkyfdiodefdcatchf(optional)fshouldfbefplacedfcloseftofeachfotherfandf connectedfusingfafwideftrace.fviasfmustfbefusedftofconnectfthefpgndfnodeftofthefgroundfplane.fthefpgndfnodefmustfbefplacedf asfclosefasfpossibleftofthefts30011/12/13fpgndfpinsftofavoidfadditionalfvoltagefdropfinftraces. thefbypassfcapacitorfcbypassf(optionallyfparalleledftofaf0.1ffcapacitor)fmustfbefplacedfcloseftofthefvccfpinsfoffts30011/12/13. thefinductorfmustfbefplacedfcloseftofthefvswfpinsfandfconnectedfdirectlyftofcoutfinforderftofminimizefthefareafbetweenfthef vswfpin,fthefinductor,fthefcoutfcapacitorfandfthefpgndfpins.ftheftracefareafandflengthfoffthefswitchingfnodesfvswfandfbstf shouldfbefminimized. forfthefadjustablefoutputfvoltagefversionfoffthefts30011/12/13,fffeedbackfresistorsfrbotfandfrtopfarefrequiredfforfvoutfsettingsf greaterfthanf0.9vfandfshouldfbefplacedfcloseftofthefts30011/12/13finforderftofkeepftheftracesfoffthefsensitivefnodeffbfasfshortfasf possiblefandfawayffromfswitchingfsignals.frbotfshouldfbefconnectedftofthefanalogfgroundfpinf(gnd)fdirectlyfandfshouldfneverf befconnectedftofthefgroundfplane.fthefanalogfgroundftracef(gnd)fshouldfbefconnectedfinfonlyfonefpointftofthefpowerfgroundf (pgnd).fafgoodfconnectionfpointfisfunderfthefts30011/12/13fpackageftofthefexposedfthermalfpadfandfviasfwhichfarefconnectedf tofpgnd.frtopfwillfbefconnectedftofthefvoutfnodefusingfaftracefthatfendsfcloseftofthefactualfload. forffxedfoutputfvoltagefversionsfoffthefts30011/12/13,frbotfandfrtopfarefnotfrequiredfandftheffbfpinfshouldfbefconnectedf directlyftofthefvout. ts 30011 / 12 / 13 v out 2 . 5 v pgnd vsw vcc fb gnd bst vcc pg pg r top 17 . 8 k r bot 10 k r pup 10 k ( optional ) vout en en c bypass 10 uf 35 v c bst 22 nf l out 4 . 7 uh c out 1 22 uf 10 v c out 2 22 uf 10 v c bypass 2 0 . 1 uf ( optional ) ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
13 of 18 semtech thefexposedfthermalfpadfmustfbefsolderedftofthefpcbfforfmechanicalfreliabilityfandftofachievefgoodfpowerfdissipation.fviasfmustf befplacedfunderfthefpadftoftransferfthefheatftofthefgroundfplane. figure 23: ts30011/12/13 pcb layout, top view external component bill of materials designator function description suggested manufacturer manufacturer code qty c bypass inputfsupplyfbypassf f capacitor 10uff10%f 35v tdk cga5l3x5r1v106k160ab 1 c out outputffilterfcapacitorf 22uff10%f 10v tdk c2012x5r1a226k125ab 2 l out outputffilterfinductorf(1a) 4.7uhf2a tdk f wurth slf7045t-4r7m2r0-pfff 7447745047 1 l out outputffilterfinductorf(2a) 4.7uhf3a tdk f wurth vlc5045t-4r7mff 744774047 1 l out outputffilterfinductorf(3a) 4.7uhf4.37a tdk f wurth vlp6045lt-4r7mff 744777004 1 c bst boostfcapacitor 15fnf-200fnff 10v tdk c1005x7r1c223k 1 notef1:ffassumesf16ldf3x3fqfnfwithfhi-kfjedecfboardfandf13.5finch2foff1fozfcufandf4fthermalfviasfconnectedftofpad ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
14 of 18 semtech external component selection thef1mhzfinternalfswitchingffrequencyfoffthefts30011/12/13ffacilitatesflowfcostflcfflterfcombinations.fadditionally,ftheffxedf outputfversionsfenablefafminimumfexternalfcomponentfcountftofprovidefafcompletefregulationfsolutionfwithfonlyf4fexternalf components:fanfinputfbypassfcapacitor,fanfinductor,fanfoutputfcapacitor,fandfthefbootstrapfcapacitor.fthefinternalfcompensationf isfoptimizedfforfaf44uffoutputfcapacitorfandfaf4.7uhfinductor. forfbestfperformance,faflowfesrfceramicfcapacitorfshouldfbefusedfforfcbypass.ffiffcbypassfisfnotfaflowfesrfceramicfcapacitor,faf 0.1uffceramicfcapacitorfshouldfbefaddedfinfparallelftofcbypass. thefminimumfallowablefvaluefforfthefoutputfcapacitorfisf33uf.ffftofkeepfthefoutputfrippleflow,faflowfesrf(lessfthanf35mohm)f ceramicfisfrecommended.fmultiplefcapacitorsfcanfbefparalleledftofreducefthefesr. thefinductorfrangefisf4.7uhf+/-20%.ffforfoptimalfover-currentfprotection,fthefinductorfshouldfbefableftofhandlefupftofthef regulatorfcurrentflimitfwithoutfsaturation.fotherwise,fanfinductorfwithfafsaturationfcurrentfratingfhigherfthanfthefmaximumfioutf loadfrequirementfplusfthefinductorfcurrentfripplefshouldfbefused.f forfhighfcurrentfmodes,fthefoptionalfschottkyfdiodefwillfimprovefthefoverallfefciencyfandfreducefthefheat.fitfisfupftofthefuserftof determinefthefcost/beneftfoffaddingfthisfadditionalfcomponentfinfthefusersfapplication.ffthefdiodefisftypicallyfnotfneeded. f forfthefadjustablefoutputfversionfoffthefts30011/12/13,fthefoutputfvoltagefcanfbefadjustedfbyfsizingfr top fandfr bot ffeedbackf resistors.ffthefequationfforfthefoutputfvoltagefis external component bill of materials continued designator function description suggested manufacturer manufacturer code qty r top voltageffeedbackfresistorf (optional) 17.8kf(notef1) 1 r bot voltageffeedbackfresistorf (optional) 10kf(notef1) 1 r plp pgfpinfpull-upfresistorf (optional) 10k 1 d catch catchfdiodef(optional,f1a) 30vf2af f sod-123fl onfsemiconductor mbr230lsft1g 1 d catch catchfdiodef(optional,f2a) 40vf3af f sod-123 nxpfsemiconductors pmeg4030er,115 1 d catch catchfdiodef(optional,f3a) 40vf5af f sod-123fl nxpfsemiconductors pmeg4050ep,1 1 notef1:ff f thefvoltagefdividerfresistorfvaluesfarefcalculatedfforfanfoutputfvoltagefoff2.5v.ffforffxedfoutputfversions,ftheffbfpinfisfconnectedfdirectlyftofv out . forfthefadjustablefversion,fthefratiofoffvcc/voutfcannotfexceedf16. r pup fisfonlyfrequiredfwhenfthefpowerfgoodfsignalf(pg)fisfutilized. thermal information ts30011/12/13fisfdesignedfforfafmaximumfoperatingfjunctionftemperatureftjfoff125c.fthefmaximumfoutputfpowerfisflimitedfbyf thefpowerflossesfthatfcanfbefdissipatedfoverfthefthermalfresistancefgivenfbyfthefpackagefandfthefpcbfstructures.fthefpcbfmustf providefheatfsinkingftofkeepfthefts30011/12/13fcool.fthefexposedfmetalfonfthefbottomfoffthefqfnfpackagefmustfbefsolderedftof afgroundfplane.fthisfgroundfshouldfbeftiedftofotherfcopperflayersfbelowfwithfthermalfvias.ffaddingfmorefcopperftoftheftopfandf thefbottomflayersfandftyingfthisfcopperftofthefinternalfplanesfwithfviasfcanfreducefthermalfresistanceffurther.fforfafhi-kfjedec ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
15 of 18 semtech boardfandf13.5fsquarefinchfoff1fozfcu,fthefthermalfresistanceffromfjunctionftofambientfcanfbefreducedftof ja f=f38c/w.ffthef powerfdissipationfoffotherfpowerfcomponentsf(catchfdiode,finductor)fcausefadditionalfcopperfheatingfandfcanffurtherfincreasef whatfthefts30011/12/13fseesfasfambientftemperature. package mechanical drawings f(allfdimentionsfinfmm) units millimeters dimensionsflimits min nom max numberfoffpins n 16 pitch e 0.50fbsc overallfheight a 0.80 0.90 1.00 standof a1 0.00 0.02 0.05 contactfthickness a3 0.20fref overallflength d 3.00fbsc exposedfpadfwidth e2 1.55 1.70 1.80 overallfwidth e 3.00fbsc exposedfpadflength d2 1.55 1.70 1.80 contactfwidth b 0.20 0.25 0.30 contactflength l 0.20 0.30 0.40 contact-to-exposedfpad k 0.20 - - ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
16 of 18 semtech recommended pcb land pattern units millimeters dimensionsflimits min nom max contactfpitch e 0.50fbsc optionalfcenterfpadfwidth w2 - - 1.70 optionalfcenterfpadflength t2 - - 1.70 contactfpadfspacing c1 - 3.00 - contactfpadfspacing c2 - 3.00 - contactfpadfwidthf(x16) x1 - - 0.35 contactfpadflengthf(x16) y1 - - 0.65 distancefbetweenfpads g 0.15 - - notes: dimensionsfandftolerancesfperfasmefy14.5m. bsc:fbasicfdimension.ftheoreticallyfexactfvaluesfshownfwithoutftolerances. ref:freferencefdimension,fusuallyfwithoutftolerance,fforfinformationfonly. packaging information pb-free (rohs): fthefts30011/12/13fdevicesfareffullyfcompliantfforfallfmaterialsfcoveredfbyfeuropeanfunionfdirectivef2011/65/euf (rohsf2),fandfmeetfallfipc-1752fclassf5f&f6fmaterialsfdeclarationfrequirements.ffthesefdevicesfarefpbffree,fweee,fandflowfhalogen. msl, peak temp: thefts30011/12/13ffamilyfhasfafmoisturefsensitivityflevelf(msl)f1fratingfperfjedecfj-std-020d.ffthesefdevicesf alsofhavefafpeakfproflefsolderftemperaturef(tp)foff260c. dimensions in millimeters ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
17 of 18 semtech ordering information x output current 1 1famp 2 2famp 3 3famp vvv output voltage 015 1.5fv 018 1.8fv 025 2.5fv 033 3.3fv 050 5.0fv 000 adjustable ts3001x-mvvvqfnr ts30011/12/13 final datasheet rev 1.7 august 24, 2015 www.semtech.com
18 of 18 semtech ts30011/12/13 final datasheet rev 1.7 august 24, 2015 contactfinformation semtechfcorporation 200fflynnfroad,fcamarillo,fcaf93012 phone:f(805)f498-2111,ffax:f(805)f498-3804 www.semtech.com importantfnotice informationfrelatingftofthisfproductfandfthefapplicationforfdesignfdescribedfhereinfisfbelievedftofbefreliable,fhoweverfsuchfinformationfisfprovidedfasfa guidefonlyfandfsemtechfassumesfnofliabilityfforfanyferrorsfinfthisfdocument,forfforfthefapplicationforfdesignfdescribedfherein.fsemtechfreservesfthefright tofmakefchangesftofthefproductforfthisfdocumentfatfanyftimefwithoutfnotice.fbuyersfshouldfobtainftheflatestfrelevantfinformationfbeforefplacingforders andfshouldfverifyfthatfsuchfinformationfisfcurrentfandfcomplete.fsemtechfwarrantsfperformancefoffitsfproductsftofthefspecifcationsfapplicablefatftheftime offsale,fandfallfsalesfarefmadefinfaccordancefwithfsemtechsfstandardftermsfandfconditionsfoffsale. f semtechfproductsfarefnotfdesigned,fintended,fauthorizedforfwarrantedftofbefsuitablefforfusefinflife-supportfapplications,fdevices orfsystems,forfinfnuclearfapplicationsfinfwhichftheffailurefcouldfbefreasonablyfexpectedftofresultfinfpersonalfinjury,flossfofflife orfseverefpropertyforfenvironmentalfdamage.finclusionfoffsemtechfproductsfinfsuchfapplicationsfisfunderstoodftofbefundertaken solelyfatfthefcustomersfownfrisk.fshouldfafcustomerfpurchaseforfusefsemtechfproductsfforfanyfsuchfunauthorizedfapplication,fthefcustomerfshall indemnifyfandfholdfsemtechfandfitsfofcers,femployees,fsubsidiaries,fafliates,fandfdistributorsfharmlessfagainstfallfclaims,fcostsfdamagesfandfattorney feesfwhichfcouldfarise. f thefsemtechfnamefandflogofarefregisteredftrademarksfoffthefsemtechfcorporation.fallfotherftrademarksfandftradefnamesfmentionedfmayfbefmarksfand namesfoffsemtechforftheirfrespectivefcompanies.fsemtechfreservesfthefrightftofmakefchangesfto,forfdiscontinuefanyfproductsfdescribedfinfthisfdocument withoutffurtherfnotice.fsemtechfmakesfnofwarranty,frepresentationforfguarantee,fexpressforfimplied,fregardingfthefsuitabilityfoffitsfproductsfforfany particularfpurpose.fallfrightsfreserved. ?fsemtechf2015

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