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t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 1 of 16 s e m t ech pr oprieta r y & c onfide n tial gnd ts33001/2/3 pgnd t s33001/ 2/3 h igh e fficien c y s ynch r onous 1/2 /3 a dc/dc buck c o n v e r t e r , 5mhz triune p r odu c ts f ea tur es ? f i x ed o utput option has aut om a tic l o w p o w er p f m mode f or r educ ed quies c en t cu r r e n t a t lig h t loads ? 5m h z +/ - 10% fi x ed swi t ching f r equenc y ? f i x ed output v oltages: 0.8 v , 0.9 v , 1.2 v , 1.5 v , 1.8 v , ? 2.5 v , and 3.3v with +/ - 2% output t ole r anc e ? i nput v oltage r ange: 2.5v t o 5.5v ? v oltage mode pwm c o n t r ol with input v oltage f eed- ? forward c ompens a tion ? v oltage supe r visor f or vout r epo r t ed a t the pg pin ? i nput supply under v oltage lockout ? s o f t sta r t f or c o n t r olled sta r tup with no o v ershoot ? f ull p r o t e c tion f or o v er - cu r r e n t , o v er - t emper a tu r e , ? and vout o v e r v oltage ? l ess than 2 00na in shu t d o wn mode ? m ultiple enable pins f or fl e xible s y s t em sequencing ? l o w e x t er nal c ompone n t c oun t ? jun c tion ope ra ting t empe ra tu r e - 40c t o 125c ? p ac k aged in a 16 pin qfn (3x3) a ppli ca tions ? p oi n t of load ? s y s t ems with deep submic r on asics/fpg a s ? s e t - t op b o x ? c ommunic a tions equipme n t ? p o r table and handheld equipme n t description t he t s33001 /2/3 (1/2/3a) a r e dc/dc synch r onous swi t ching r egul a t ors with fully i nt e grat ed p o w er swi t che s , i nt e r nal c ompens a tion, and full fault p r o t e c tion. t he swi t ching f r equen c y of 5m h z enables the use of ex t r emely small fil t er c ompone n t s , r esulting in smaller boar d spa c e and r educ ed bom c ost s . w hen the input cu r r e n t is g r e a t er than app r o xim at ely 50ma, the t s33001/2 /3 utili z es pwm v oltage mode f eedback with input v oltage f eed - f o r w a r d t o p r o vide a wide input v oltage r ange without the need f or e x t er nal c ompens a tion. w hen the input cu r r e n t is less than 50ma, the devi c e uses a p f m mode t o pr o vide inc r eased efficien c y a t lig h t load s . t he c r oss o v er bet w een p f m mode and pwm is au t om a tic and has h y s t e r esis t o p r e v e n t oscill a tion bet w een the mode s . a dditionall y , the nlp mode pin can be used t o f or c e the devi c e i nt o pwm mode t o r educ e the output r ippl e , if neede d . t he t s33001/2 /3 i n t e g r a t es a wide r ange of p r o t e c tion ci r cuit r y ; including input supply unde r - v oltage lockou t , output unde r - v oltag e , output o v er - v oltag e , so f t sta r t , high side f e t and l o w side f e t cu r r e n t limit s , and the r mal shu t d o wn. t ypi c al a ppli ca tions vcc vcc fixed output vsw 1h vout 22uf vout sense 10uf fb vcc or vout nlp nlp 10 kohm (optional) en en pg pg
t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 2 of 16 s e m t ech pr oprieta r y & c onfide n tial p inout pgnd pg vsw nlp vout sense vsw pgnd fb vsw vsw vcc vcc ts33001/2/3 vcc test out gnd en p in description p in # p in name p in f unc tion description 1 vsw s wi t ching v oltage node c onne c t t o 1.5uh indu c t o r . sho r t t o p ins 12, 14, & 15 2 v cc i nput v oltage i nput v oltage suppl y . sho r t t o p ins 3 & 11 3 v cc i nput v oltage i nput v oltage suppl y . sho r t t o p ins 2 & 11 4 gnd gnd g r ound f or the i nt e r nal ci r cuit r y of the devi c e 5 fb f eedback i nput f eedback v oltage f or the r egul at or when used in adjustable mod e . c onne c t t o the output v oltage r esis t or divider f or adjustable mode and no c onne c tion f or fi x ed output modes 6 v out s ense o utput v oltage s ense o utput v oltage s ens e . r equi r es kelvin c onne c tion t o 4.7uf output capaci t or 7 nlp nlp i nput f or cing this pin high pr ev e n ts the devi c e f r om going i nt o low p o w er p f m mode ope r a tion 8 pg pg o utput p ow er g ood indic at or open - d r ain outpu t . 9 en enable i nput i nput high v oltage enables the devi c e . i nput l o w disables the devi c e . 10 test out t est m ode o utput c onne c t t o gn d . f or i nt e r nal t esting use onl y . 11 v cc i nput v oltage i nput v oltage suppl y . sho r t t o p ins 2 & 3 12 vsw s wi t ching v oltage node c onne c t t o 1 h indu c t o r . sho r t t o p ins 1, 14, & 15 13 pgnd p ow er gnd gnd supply f or i nt e r nal l ow - side f e t/i n t e g r a t ed diod e . sho r t t o p in 16 14 vsw s wi t ching v oltage node c onne c t t o 1 h indu c t o r . sho r t t o p ins 1, 12, & 15 15 vsw s wi t ching v oltage node c onne c t t o 1 h indu c t o r . sho r t t o p ins 1, 12, & 14 16 pgnd p ow er gnd gnd supply f or i nt e r nal l ow - side f e t/i n t e g r a t ed diod e . sho r t t o p in 13
t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 3 of 16 s e m t ech pr oprieta r y & c onfide n tial f un c tional bl o ck d iag r am nlp pg en vcc monitor & control under voltage protection vcc oscillator ramp generator thermal protection over current protection vref & softstart error amp comparator gate drive control gate drive gate drive vsw 1 u h vout 10 f compensation network pgnd r top (adjustable) gnd fb (adjustable) vout sense (adjustable) r bot (adjustable) f igu re 1: t s33001/2 /3 block d iag r am f or fi x ed and adjustable mode d e vi c es
t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 4 of 16 s e m t ech pr oprieta r y & c onfide n tial a bsolu t e m aximum r a ting o ver ope ra ting f r e e ? air t empe ra tu r e r ange unless othe r wise not ed (1, 2) p a r ame t er v alue unit v cc - 0.3 t o 6.0 v vsw - 1 t o 6.0 v en, pg,f b , nlp , test ou t , v out s ense - 0.3 t o 6 v ele c t r ost a tic discha r ge ? human b ody m odel 2k v ele c t r ost a tic discha r ge ? cha r ge d evi c e m odel 500 v l ead t empe ra tu r e (solde r in g , 10 se c onds) 260 c n ot es: (1) stresses b e y ond those lis t ed under absolu t e maximum ratings m a y cause permanent damage t o the d e vice. these are stress ratings only and functional operation of the d e vice at these or a n y o ther conditions b e y ond those indica t ed under recommended operating co n - ditions is n o t i m plied. exposure t o absolu t e C maximum C ra t ed conditions f or e x t ended periods m a y a f f ect d e vice reliabilit y . (2) all v oltage v alues are with respect t o n e t w or k g r ound t erminal. t hermal c ha r a c t eristics s ym b ol p a r ame t er v alue unit ja t her mal r esistan c e jun c tion t o a ir (no t e 1) 50 c/w n ot e 1: assumes qfn 1 6 1 in 2 area of 2 oz copper and 25c ambient t e m perature. re c ommended op e r a ting c onditions s ym b ol p a r ame t er m in t yp m ax unit v cc i nput ope ra ting v oltage 2.375 5 5.5 v t s tg s t o r age t empe ra tu r e r ange - 65 150 c t j m ax m aximum jun c tion t empe r a tu r e 150 c t j ope ra ting jun c tion t empe ra tu r e r ange - 40 125 c l out o utput f il t er i ndu c t or t ypical v alue (no t e 1,3) 1 h c out o utput f ilt er c apaci t or t ypical v alue (no t e 2,3) 10 f c ou t - esr o utput f il t er c apaci t or esr 0 5 20 m c b y p ass i nput supply b ypass c apaci t or t ypical v alue (no t e 2) 22 f n ot e 1: f or best per f ormance, an induc t or with a saturation current rating higher than the maximum v out load requirement plus the inductor current ripple. see the induc t or current ripple calculations in induc t or calculations sections. n ot e 2: f or best per f ormance, a l o w esr ceramic capaci t or should be used C x7r or x5r types should be used. y5v should be a v oided. n ot e 3: min and max lis t ed are t o account f or +/ - 20% v ariation of the typical v alue. t ypical v alues of 1 0uf and 0. 4 7uh are recommended.
t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 5 of 16 s e m t ech pr oprieta r y & c onfide n tial c ha r a c t eristics ele ct r ical cha r a c t e r istic s , t j = - 40c t o 125c, v c c = 5v (unless othe r wise not ed) s ym b ol p a r ame t er c ondition m in t yp m ax unit v c c supply v oltage v cc i nput supply v oltage 2.375 5.5 v i c c - norm q uies c e n t cu r r e n t no r mal m ode v c c = 5v , i l o ad = 0a, en=5 v , nlp=5v 18 ma i c c -l pm q uies c e n t cur r e n t l o w p o w er p f m m ode v c c = 5v , i l o ad = 0a, en=5 v , nlp=0v 150 a i c c - shutdown q uies c e n t cu r r e n t shu t d o wn m od v c c = 5 v , en=0v 0.2 a v c c under v oltage l o c k out v c c - uv i nput supply under v oltage t h r eshold v c c i nc r easing 2.2 v v c c - uv_ h y st i nput supply under v oltage t h r eshold h y s t e r esis 200 mv osc f osc oscill a t or f r equen c y 4.5 5 5.5 m h z pg op en d r ain o utput t pg pg r elease t imer 10 ms i oh -pg h igh - l e v el o utput l eak age v pg =5v v c c=5v 0.1 a v o l - pg l ow - l e v el o utput v oltage i pg = - 0.3ma 0.01 v en/nlp i nput v oltage t h r esholds v ih - en/nlp h igh l e v el i nput v oltage v c c=2v t o 5v 2.2 v v i l - en/nlp l o w l e v el i nput v oltage v c c=2v t o 5v 0.4 v v h y s t - en/nlp i nput h y s t e r esis v c c=2v t o 5v 400 mv i in -en en i nput l eak age v en =5v v c c=5v 0.2 a v en =0v v c c=5v 0.2 a nlp pd nlp p ulld o wn r esis t or p ulld o wn t o gnd 65 k t hermal s hu t d o wn t s d t her mal shut d o wn jun c tion t empe r a tu r e 150 170 190 c t s d h y s t t sd h y s t e r esis 10 c
t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 6 of 16 s e m t ech pr oprieta r y & c onfide n tial dson regul a t or c ha r a c t eristics ele ct r ical cha r a c t e r istic s , t j = - 40c t o 125c, v c c = 5v (unless othe r wise not ed) s ym b ol p a r ame t er c ondition m in t yp m ax unit s wi t ch mo de regul at o r : l=470nh and c=10uf v ou t - pwm o utput v oltage t ole r an c e in m ode v out ? 2% v out v out + 2% v r dson h igh side s wi t ch on r esistan c e i vsw = - 1a (no t e 1) 110 m l o w side s wi t ch on r esistan c e i vsw = 1a (no t e 1) 75 m i out o utput c u r r e n t t s33001 t s33002 ts33003 1 2 3 a i ocdhs o v er c u r r e n t d e t e c t hs t s33001 t s33002 ts33003 1.7 2.7 3.7 a i ocdls o v er c u r r e n t d e t e c t ls t s33001 t s33002 ts33003 1.7 2.7 3.7 a v ou t - line o utput line r egul a tion v c c = 2.5v t o 5 v , v out = 1.8 v , i l o ad = 1 a - 10 10 mv v ou t - l o ad o utput l oad r egul a tion i l o ad = 10ma t o 2a, v c c = 5 v , v out = 1.8v v out - 0.5% v out v out + 0.5% v f b th f eedback r e f e r en c e fb s wi t ch p oi n t 0.6 v f b th - t ol f eedback r e f e r en c e t ole r an c e - 1.5 1.5 % i fb f eedback i nput c u r r e n t 100na na t ss s o f tsta r t r amp t ime 500 us v ou t - pg v out p o w er g ood t h r eshold 85% v out v ou t - pg_ h y st v out p o w er g ood h y s t e r esis 2% v out v ou t - ov v out o v er v oltage t h r eshold 106% v out v ou t - ov_ h y st v out o v er v oltage h y s t e r esis 2% v out n ot e 1: r is charac t erized at 1a and t es t ed at l o w er current in p r oduction.
t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 7 of 16 s e m t ech pr oprieta r y & c onfide n tial f un c tional description t his v oltag e - mode p oi n t of l oad (pol) synch r onous s t e p - d o wn p o w er supply p r oduc t can be used in the c onsume r , indust r ia l , and aut omoti v e ma r ket se g me n t s . i t includes fl e xibili t y t o be used f or a wide r ange of output v oltages and is optimi z ed f or high efficien c y p o w er c o n v ersion with l o w rdson i nt e grat ed synch r onous swi t che s . a 5m h z i nt e r nal swi t ching f r equen c y facilit a t es l o w c ost l c fil t er c ombin a tions and imp r o v ed t r ansie n t r espons e . a dditionall y , the fi x ed output v ersion, with i nt e grat ed p ow er on r eset and f ault ci r cuit r y enables a minimal e x t er nal c ompone n t c oun t t o pr o vide a c omple t e p ow er supply solution f or a v a rie t y of applic a tion s . detailed p in description un r egul a t ed inpu t , v c c t his t e r minal is the unr egul at ed input v oltage sou r c e f or the ic. i t is r ec ommended th a t a 22uf b ypass capaci t or be pla c ed close as possible t o the v c c pins f or best per f o r man c e . sin c e this is the main supply f or the ic, good l ay out pr a c ti c es need t o be f oll o w ed f or this c onnec tion. f eedbac k , fb t his is the v oltage f eedback input t e r minal f or the adjustable v ersion. f or the fi x ed mode v ersion s , this pin should be le f t flo a ting and not c onne c t e d . t he c onne c tion on the pcb should be kept as sho r t as s wi t ching outpu t , v sw t his is the swi t ching node of the r egul a t o r . i t should be c onne c t ed di r e c tly t o the 1 uh indu c t or with a wid e , sho r t t r a c e . i t is swi t ching bet w een v c c and pgnd a t the swi t ching f r equen c y . g r oun d , gnd t his g r ound is used f or the majo r i t y of the devi c e including the analog r e f er enc e , c o n t r ol loo p , and other ci r cuit s . p o w er g r oun d , pgnd t his is a sepa r a t e g r ound c onne c tion used f or the l o w side synch r onous f e t t o isol a t e swi t ching noise f r om the r est of the devi c e . enabl e , en t his is an input t e r minal t o a c ti v a t e the e n ti r e devi c e . t his will enable the i nt e r nal r e f er enc e , oscill a t o r , t s d , e t c , and all o w the fault de t e c tion ci r cuit r y t o w o r k c o r r e c tl y . noti c e th a t the en needs t o l o w f or the par t t o e xhibit less than 2 00na quies c en t cu r r en t . t he input th r eshold is t tl/cmos c ompa tible . p o w er good o utpu t , pg t his is an open d r ain, a c ti v e high outpu t . t he swi t ched mode output v oltage is moni t o r ed and the pg line will r emain possible f r om the f eedback r esis t or s , kept a w a y f r om the vsw l o w u n til the output v oltage r eaches the v ou t - uv th r eshol d , c onne c tions or other swi t ching/high f r equen c y node s , and should not be sha r ed with any other c onnec tion. t his should minimi z e st r a y c ouplin g , r edu c e noise inje c tion, and minimi z e v oltage shi f t cause b y output loa d . t o choose the r esis t ors f or the adjustable v ersion, use the f oll o wing equa tion: v out = 0.6 (1 + r t o p /r b o t ) f or stabili t y , r t op should be 270k ohms t o 330k ohm s . o utput v oltage s ens e , v out s ense t his is the input t e r minal f or the v oltage output f eedback and is needed f or both adjustable and fi x ed v oltage v ersion s . t his should be c onne c t ed t o the main output capaci t o r , and the same good l ay out pr ac ti c es should be f oll o w ed as f or the fb c onnec tion. keep this line as sho r t as possibl e , keep it a w a y f r om the vsw and other swi t ching or high f r equen c y t r a c e s , and do not sha r e this c onne c tion with an y other c onne c tion on the pc b . app r o xim at ely 85% of the final r egul a tion outpu t . on c e the i nt e r nal c ompa rat or det e c ts the output v oltage is ab ov e the desi r ed th r eshol d , an i nt e r nal 10m s ec del a y timer is a c ti vat ed and the pg line is d e - asse r t ed t o high when this del a y timer e xpi r e s . i n the ev en t the output v oltage dec r eases bel o w v ou t - u v , the pg line will be asse r t ed l o w immedi at ely and r emain l o w u n til the output r ises abo v e v ou t - uv and the del a y timer times out again. i f en is pulled l o w , the v c c input unde r v oltage t r ip s , or t her mal shu t do wn is r eache d , the pg pin will immedi at ely be pulled l o w . n lo w p o w er mo de o utpu t , nlp t his is an input t o f o r c e the pwm mode when lig h t load is on the outpu t . t he p f m l o w p o w er mode has higher output v oltage r ippl e , which is some applic a tions m a y be unac c eptabl e . i f l o w r ipple is needed on the output this pin can be tied t o v c c inpu t , or swi t ched abo v e 2.2v dur ing ope ra tion t o f or c e the devi c e i nt o nor mal pwm mod e .
t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 8 of 16 s e m t ech pr oprieta r y & c onfide n tial i nt ernal pro t e c tion details i nt ernal c ur r e n t limit c u r r en t limit is al w a y s ac ti v e when the r egul at or is enable d . h igh side cu r r e n t limit will sho r t en the high side on time and t r i - st at e the high sid e . a dditionall y , l o w side cu r r e n t limit will p r o t e c t the l o w side f e t and tu r n off the swi t ch if cu r r e n t limit is sensed on the l o w side swi t ch. sin c e the output is fully synch r onou s , the cu r r e n t limit is p r o t e c t ed on the l o w side in both the positi v e and nega ti v e di r e c tion. s o f t s ta r t s o f t sta r t ensu r es cu r r e n t limit does not p r e v e n t r egul at or sta r tup and minimi z e o v ershoot a t sta r tu p . t he t ypical sta r tup time is 3ms . t hese v alues do not change with output v oltag e , cu r r e n t limit setting s , or adjustable/fi x ed mod e . t he so f t sta r t is r e - t r igge r ed with the a n y r ising edge th a t enables the r egul a t o r , including the en input pin s , the r mal shu t d o wn, v c c unde r v oltag e , or a v c c p o w er c y cl e . t hermal s hut d o wn i f the t empe ra tu r e of the die e x c eeds 170c, the vsw outputs will t r i - st at e t o p r o t e c t the devi c e f r om damag e . t he pg and all other p r o t e c tion ci r cuit r y will st a y a c ti v e t o in f o r m the s y s t em of the failu r e mod e . on c e the devi c e c ools t o 160c, the devi c e will a t t empt t o sta r t up again, f oll o wing the no r mal so f t sta r t sequen c e with 10ms del a y on pg. i f the devi c e r eaches 170c, the shu t d o wn/ r esta r t sequen c e will r epea t . o utput o v e r v oltage i f the output of the r egul at or e x c eeds 106% of the r egul a tion v oltag e , the vsw outputs will t r i - st at e t o p r o t e c t the devi c e f r om damag e . t his check o c curs a t the sta r t of each swi t ching c y cl e . i f it oc curs dur ing the middle of a c y cl e , the swi t ching f or th a t c y cle will c omple t e , and the vsw outputs will t r i - st at e a t the be g inning of the n e x t c y cl e . v c c under - v oltage l o c k out t he devi c e is held in the off st a t e u n til v c c r eaches 2.2 v . t her e is a 200mv h y s t e r esis on this inpu t , which r equi r es the input t o fall bel o w 2v bef o r e the devi c e will disabl e .
t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 9 of 16 s e m t ech pr oprieta r y & c onfide n tial t ypi c al p e r f orman c e c ha r a c t eristics 1a/div 200mv/div 100mv/div 500ma/div 2v/div 500mv/div 100mv/div 500ma/div 100mv/div 200mv/div 1a/div 200mv/div t j = - 40c t o 125c, v c c = 4v (unless othe r wise not ed) enab l e v out f i g .1 s ta r tup resp onse f i g .3 10ma t o 1a l oad st ep ( v c c =4 v , v out =0.8 v ) f i g .5 100ma t o 2a l oad st ep ( v c c =4 v , v out =1.8 v ) f i g .2 10ma t o 1a l oad st ep ( v c c =4 v , v out =3.3 v ) f i g .4 100ma t o 2a l oad st ep ( v c c =4 v , v out =0.8 v ) f i g .6 line t r ansie n t response ( v c c =4, v out =0.8 v )
t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 10 of 16 s e m t ech pr oprieta r y & c onfide n tial e x t ernal c om p one n t s ele c tion t he i nt e r nal c ompens a tion is optimi z ed f or a 10uf output capaci t or and a 1 uh indu c t o r . t o keep the output r ipple l o w , a l o w esr (less than 20mohm) c e r amic is r e c ommende d . f or optimal o v e r - cu r r e n t p r o t e c tion, indu c t or should be able t o handle the 3.7a for the 3a version, 2. 7 a f or the 2a v ersion and 1.7 a f or the 1a v ersion without s a tu r a tion. a ppli c a tion u sing a multi - l a y er pcb t o maximi z e the efficien c y of this pac k age f or applic a tion on a single l ay er or multi - l ay er pc b , c e r tain guidelines must be f oll o w ed when l a ying out this pa r t on the pc b . t he f oll o wing a r e guidelines f or mou n ting the e x p osed pad ic on a multi - l a y er pcb with g r ound a plan e . s o l der pad (la n d p a tter n) package t h er m al pad t h er m al v i a ' s package o ut lin e package and pcb l an d c o n f i g u r ati o n f o r a m u l ti- l a y e r p c b jedec standa r d fr4 pcb c r oss - se c tion: (square) p ackage solde r p a d component t races 4 pla n e 2 pla n e 1.5748mm thermal via 1.5038 - 1.5748 mm component t race (2oz cu) 1.0142 - 1.0502 mm ground pla ne (1oz c u) thermal isolati on pow e r plane only package solder pad (botto m t r ac e ) 0.5246 - 0.5606 mm pow e r pla n e (1oz c u) 0.0 - 0.071 mm board base & botto m p a d multi - l a y er boa r d (c r oss - sectional vi e w) i n a multi - l ay er boa r d applic a tion, the the r mal vias a r e the p r ima r y method of he a t t r ans f er f r om the pac k age the r mal pad t o the i nt e r nal g r ound plan e . t he efficien c y of this method depends on se v e ral fa c t or s , including die a r ea, number of the r mal via s , thic k ness of c oppe r , e t c .
t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 11 of 16 s e m t ech pr oprieta r y & c onfide n tial mold compou n d d ie epox y di e attach expose d p ad solder 5 % - 10% cu coverage single layer, 2oz cu groun d layer , 1o z cu signa l laye r , 1oz cu bottom layer, 2oz cu thermal vias with cu plating 90% cu coverage 20% cu coverage note: not to sca le t he abo v e d ra wing is a r ep r ese n t a tion of h o w the hea t can be c ondu c t ed a w a y f r om the die using an e xposed pad pac k ag e . each applic a tion will hav e dif f e r e n t r equi r emen ts and limit a tions and the r e f o r e the user should use sufficie n t c opper t o dissip a t e the p o w er in the s y s t em. t he output cu r r e n t ra ting f or the linear r egul a t ors m a y hav e t o be d e - r a t ed f or ambie n t t empe r a tu r es abo v e 85c. t he d e - r a t e v alue will depend on calcul a t ed w orst case p o w er dissip a tion and the the r mal manageme n t impleme n t a tion in the applic a tion. a ppli c a tion u sing a single l a y er pcb use as m uch c o pper a r ea as po ssi bl e f o r h eat s pr ead package t h e r m al pad package o u t li n e lay out r ec ommend a tions f or a single l ay er pcb: utili z e as much c opper a r ea f or p ow er m anageme n t . i n a single l ay er boar d applic a tion the the r mal pad is a ttached t o a hea t sp r eader ( c opper a r eas) b y using l o w the r mal impedan c e a ttachme n t method (solder pas t e or the r mal c ondu c ti v e ep o x y). i n both of the methods men tioned abo v e it is advisable t o use as much c opper t r a c es as possible t o dissip a t e the hea t . impor t ant : i f the a ttachme n t method is n o t impleme nt ed c o r r e c tl y , the fun c tionali t y of the p r odu c t is not guar an t eed . p ow er dissip a tion capabili t y will be adv ersely af f e c t ed if the devi c e is in c or r e c tly mou nt ed o nt o the ci r cuit boa r d .
t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 12 of 16 s e m t ech pr oprieta r y & c onfide n tial p ack age m echani c al d ra wings (all dimensions in mm) units millim e ters dimension limits min nom m ax number of p ins n 16 p i t ch e 0.50 bsc o v e r all heig h t a 0.80 0.90 1.00 s tandoff a1 0.00 0.02 0.05 c o n ta c t t hic k ness a3 0.20 ref o v e r all l ength d 3.00 bsc exposed p ad w idth e2 1.55 1.70 1.80 o v e r all w idth e 3.00 bsc exposed p ad l ength d2 1.55 1.70 1.80 c o n ta c t w idth b 0.20 0.25 0.30 c o n ta c t l ength l 0.20 0.30 0.40 c o n ta c t - t o - exposed p ad k 0.20 - -
t s33001/2 /3 final datasheet rev 1.6 january 15, 2016 ww w .se m t ech. c om 13 of 16 s e m t ech pr oprieta r y & c onfide n tial re c ommeded pcb l and p a t t ern dimensions in millim e ters units millim e ters dimension limits min nom m ax c o n ta c t p i t ch e 0.50 bsc optional c e n t er p ad w idth w2 - - 1.70 optional c e n t er p ad l ength t2 - - 1.70 c o n ta c t p ad spacing c1 - 3.00 - c o n ta c t p ad spacing c2 - 3.00 - c o n ta c t p ad w idth ( x8) x1 - - 0.35 c o n ta c t p ad l ength ( x8) y1 - - 0.65 distan c e b e t w een p ads g 0.15 - - n ot es: dimensions and t olerances per asme y 1 4.5m. bsc: basic dimension. theor e tically e xact v alues sh o wn without t olerances. ref: r e f erence dimension, usually without t olerance, f or in f ormation onl y .
o r dering i n f orm a tion s e m t ech pr oprieta r y & c onfide n tial final datasheet rev 1.6 january 15, 2016 p a r t num b er description t s33001 - m008qfnr 5m h z s ync buc k , 1a - 0.8v t s33001 - m009qfnr 5m h z s ync buc k , 1a - 0.9v t s33001 - m012qfnr 5m h z s ync buc k , 1a - 1.2v t s33001 - m015qfnr 5m h z s ync buc k , 1a - 1.5v t s33001 - m018qfnr 5m h z s ync buc k , 1a - 1.8v t s33001 - m025qfnr 5m h z s ync buc k , 1a - 2.5v t s33001 - m033qfnr 5m h z s ync buc k , 1a - 3.3v t s33001 - m000qfnr 5m h z s ync buc k , 1a ? adjustable voltage t s33002 - m008qfnr 5m h z s ync buc k , 2a - 0.8v t s33002 - m009qfnr 5m h z s ync buc k , 2a - 0.9v t s33002 - m012qfnr 5m h z s ync buc k , 2a - 1.2v t s33002 - m015qfnr 5m h z s ync buc k , 2a - 1.5v t s33002 - m018qfnr 5m h z s ync buc k , 2a - 1.8v t s33002 - m025qfnr 5m h z s ync buc k , 2a - 2.5v t s33002 - m033qfnr 5m h z s ync buc k , 2a - 3.3v t s33002 - m000qfnr 5m h z s ync buc k , 2a ? adjustable voltage t s33003 - m008qfnr 5m h z s ync buc k , 3a - 0.8v t s33003 - m009qfnr 5m h z s ync buc k , 3a - 0.9v t s33003 - m012qfnr 5m h z s ync buc k , 3a - 1.2v t s33003 - m015qfnr 5m h z s ync buc k , 3a - 1.5v t s33003 - m018qfnr 5m h z s ync buc k , 3a - 1.8v t s33003 - m025qfnr 5m h z s ync buc k , 3a - 2.5v t s33003 - m033qfnr 5m h z s ync buc k , 3a - 3.3v t s33003 - m000qfnr 5m h z s ync buc k , 3a ? adjustable voltage t s33001/2/3 www .se mt ech. c om 14 of 16
o r dering i n f orm a tion s e m t ech pr oprieta r y & c onfide n tial final datasheet rev 1.6 january 15, 2016 rohs and reach c omplian c e t r iune s y s t ems is fully c ommit t ed t o e n vi r onme n tal quali t y . a ll t r iune s y s t ems m a t er ials and suppliers ar e fully c omplia n t with r ohs (e u r opean union di r e c ti v e 2011/65/eu), re a ch svhc chemical r est r i c tions (ec 1907/2006), ipc - 1752 l e v el 3 m a t er ials decla r a tion s , and their subseque n t amendme n t s . t r iune s y s t ems mai n tains c e r tified labo rat o r y r epo r ts f or all p r oduc t m a t er ial s , f r om all supplier s , which sh o w full c omplian c e t o r est r i c tions on the f oll o wing: ? c admium ( c d) ? chlo r ofluo r oca r bons ( cfcs) ? chlo r in a t e h y dr oca r bons ( chcs) ? halons (halogen f r ee) ? h e x a v ale n t ch r omium ( c rvi) ? h y dr ob r omofluo r oca r bons (hbfcs) ? h y dr ochlo r ofluo r oca r bons (hcfcs) ? l ead ( p b ) ? m e r cu r y (hg) ? p e r fluo r oca r bons (pfcs) ? p olyb r omin a t ed biphe n yls (pbb) ? p olyb r omin a t ed diphe n yl e thers (pbdes) t s33001/2 /3 www .se mt ech. c om 15 of 16
s e m t ech pr oprieta r y & c onfide n tial final datasheet rev 1.6 january 15, 2016 impor t ant n o tice in f orm a tion r el a ting t o this p r odu c t and the appli c a tion or design described he r ein is beli e v ed t o be r eliabl e , h o w e v er such in f orm a tion is p ro vided as a guide only and s e mt ech assumes no liabili t y f or a n y er r ors in this docume nt , or f or the appli c a tion or design described he r ein. s e mt ech r ese r v es the rig h t t o ma k e changes t o the p r oduc t or this docume n t a t a n y time without noti c e . bu y ers should obtain the l at est r el eva n t in f orm a tion be f o r e placing o r ders and should v erify th a t such in f orm a tion is cur re n t and c omple t e . s e mt ech w ar r a n ts pe r f orman c e of its p roduc ts t o the specifi c a tions appli c able a t the time of sal e , and all sales a r e made in a cco r dan c e with s e mt ech ? s standa rd t erms and c onditions of sal e . sem tech p r odu c t s are n o t designe d , intende d , a uthorized or w arr anted t o be sui t able for use in life - support appli c a tions, d e vices or s y stems, or in nuclear appli c a tions in which the f ai l ure c ould be reasonab l y expe c ted t o resu l t in personal inju r y , l oss of life or se vere p r oper t y or envi r onmen t al d am a g e . inc l usion of sem tech p r odu c t s in such appli c a tions is unders t ood t o be under t aken sole l y a t the cus t ome r ? s o wn ris k . s hould a cus t omer pur chase or use s e mt ech p roduc ts f or a n y such unauthori z ed appli c a tion, the cus t omer shall indemnify and hold s e mt ech and its offi c er s , empl o y ees , subsidiarie s , affili at e s , and distribu t ors harmless against all claim s , c osts damages and a t t orn e y f ees which c ould aris e . t he s e mt ech name and logo a re r egis t e red t r ademarks of the s e mt ech c orpo r a tion. t riune s y s t em s , l.l.c. is n o w a wholl y - o wned subsidia r y of s e m t ech c orpo r a tion. t he t riune s y s t ems? name and log o , mpp t - li t e?, and nanosma r t? a r e t r ademarks of t riune s y s t em s , l l c. in the u .s.a. a ll other t r ademarks and t r ade names me n tioned m a y be marks and names of s e mt ech or their r espe c ti v e c ompanie s . s e mt ech r ese r v es the rig h t t o ma k e changes t o , or dis c o n tinue a n y p r oduc ts described in this docume n t without fu r ther noti c e . s e mt ech ma k es no w ar r a n t y , r ep r ese n t a tion or gua r a nt e e , e xp ress or implie d, r ega r ding the suitabili t y of its p r odu c ts f or a n y pa r ticular purpos e . a ll rig h ts r eser v e d . ? s e mt ech 2015 c o n ta c t i n f orm a tion s e mt ech c orp o r a tion 200 f lynn roa d , c amarill o , c a 93012 phone: (805) 498 - 2111, f ax: (805) 498 - 3804 ww w .se m t ech. c om t s33001/2 /3 16 of 16

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