1 FP6137C -1.2-ja n-2007 FP6137C fitipow e r integrated technology lnc. 2a bu s t ermination regulato r pin assignment s sp pack ag e (sop-8< e xp o sed pad > ) refen nc gnd vi n nc vcntl nc vout 2 3 4 6 5 7 8 gn d 1 fig ure 1. pin assignm ent of f p 613 7c (t op v i e w ) ordering information t y pical application circuit c cn tl 47 en q1 c in 470 1. 8v/2. 5v v in 3. 3 v v cnt l gnd vo ut re f e n vcntl vi n c vo u t 470 0. 9v/1. 25v v ou t c ss 1 r u 100k r d 100k FP6137C f igure 2. t y pic a l appl icat i on circuit of f p 61 37c description the fp6137 c linear regul ator is desi gn ed to provide the transi ent peaks up to 2a sou r ci n g or sin k in g cap ability for ddr sdra m bus termination appli- cation. t he output volt ag e ca n tra c k half of input power by two external volt age divide r re sisto r s. the fp61 37 c provides curr ent limiting in both sou- rcin g/sin k in g mode a nd th ermal sh ut do wn fun c tion whi c h prote c t s the excessive heating due to high curre n t and hi gh jun c tion te mperature. the fp6137 c is availabl e in the sop-8 (expose d pad) p a cka g e . features 2a source or sink curre n t power mosfet integrated low o u tput v o lt age of fset curre n t limiting protectio n thermal sh ut do wn prote c tion adjuste d o u tput by exte rnal resi sto r s shut do wn f o r s t and by or suspen d mo de ro hs com p liant applications ddr-i an d ddr-ii bus t e rmin ation v o lt age sstl-2 an d sstl-3 t e rmination active t e rm ination buses p: pb free w i t h commercial s t andard (r oh s compli ant) f p6137c package t y pe sp: sop-8 (ex posed pad) t r : t ape/reel blank: t ube http://
2 FP6137C -1.2-ja n-2007 FP6137C fitipow e r integrated technology lnc. functional pin description pin name pin function vin power input pin. vin is the input p ower suppl y use d to creat e the external ref erence volt age for regul ating vou t . vin sources curr ent to vout b y upper nm os. gnd common ground pin. the vout sinks current to gnd by lower nmos. vcntl power input pin. the vcntl power supplies the internal control circuitry and gate drive voltage. refen chip enable, and input refere nce volt age pin. the referenc e volt ag e is half of the vin po w e r b y t w o exter nal volt age divide resistors. vout regulator outp u t pin. vo ut volt ag e tracks the refen volt age and is cap able of sourcing or sinking c u rrent up t o peak 2a. block diagram error amp c ur r ent li m i t & t her m al s hut dow n gn d vo ut vin v cnt l re f e n + - f i gure 3. block diagr am of f p 613 7c absolute maximum ratings vin to gnd -- -- -- -- -- -- -- --- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - 6v vcnt l to gn d -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - 6v pow e r d i s sip ation -- -- -- --- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- inter nal limited jun c tion t e mperature -------- ------------ ------------ ------------ ------------ ------------ ------------ ------ 150 c s t orage t e mperature ra nge------- ------------ ------------ ------------ ---------- ---------- ---------- ----- -65 c to15 0 c package t herm al re si st ance sop-8 (expos ed pad), jc -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - 10.4 c/w sop-8 (expos ed pad), ja -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - 80 c/w lead t e mp eratu r e (sol d e ring, 10 se c.) ------------- ------------ ------------ ------------ ---------- ------ 260 c esd susceptibility h b m( h u man body mode) -- -- -- -- -- -- --- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 2kv mm(machi ne mode ) --------- ------------ ------------ ------------ ------------ ------------ ------------ ------- 200v note s t resse s be yon d those listed un der ?a bsol ute ma xim u m ratin g s" ma y c ause p e rm ane nt dama ge to the devic e.
3 FP6137C -1.2-ja n-2007 FP6137C fitipow e r integrated technology lnc. electrical characteristics (v cnt l = 3 .3v , v in = 2 .5v , v re fen =0. 5*v in , c out =10 u f , t a =25 c, unle ss oth erwise spe c ified ) parameter symbol test conditions min typ max units input v in 1.6 2.5/1.8 oper ation v olt age range (ddri a nd ddii) v cnt l 3.3 5.5 v v cnt l quiescent curre nt i cnt l no load 1.5 3.0 ma shut do w n c urr e nt i sd v refen <0. 2 v 5 30 ua output voltage output of fset v olt age v os no load , (v ref e n -v out ) -20 0 20 mv | ? v lo ad | i out : 0 to 1.5a load regulation (ddri a nd ddii ) i out : 0 to -1.5a 20 mv protection curre nt limit i lim 2.0 2.5 a thermal shut do w n t sd 170 c thermal shut do w n h y ste r esis ? t sd 35 c shutdown control minimum shut dow n high level v ih 0.6 v minimum shut dow n lo w level v il 0.2 v
4 FP6137C -1.2-ja n-2007 FP6137C fitipow e r integrated technology lnc. t y pical performance curves - 4 0 - 2 0 0 2 0 4 06 08 0100 0. 20 0. 25 0. 30 0. 35 0. 40 0. 45 0. 50 0. 55 0. 60 0. 65 v cn t l =5 v turn-on threshold voltage (v) j u nct i o n te m p er a t ur e ( o c) v cnt l =3.3v -40 - 2 0 0 2 0 4 0 6 0 8 0 100 0. 20 0. 25 0. 30 0. 35 0. 40 0. 45 0. 50 0. 55 0. 60 0. 65 v cnt l =3 . 3 v turn-off threshold voltage (v) junct i on tem p er at ur e ( o c) v cntl =5 v f i gure 4. t u rn-on t h reshol d voltag e vs. junction t e mperature figure 5. t u rn-off t h reshold voltage vs. junction t e mperature - 40 - 20 0 20 40 60 80 100 -8 -6 -4 -2 0 2 4 6 8 v cn t l =3.3v v cn t l =5 v output offset v out -v refen (mv) j unct i o n t e m p erat ur e ( o c) v ou t =1.25v - 4 0 - 2 0 0 2 0 4 06 08 0 1 0 0 -8 -6 -4 -2 0 2 4 6 8 v ou t =0.9v v cn tl =3 . 3 v output offset v out -v refen (mv) j u nc t i o n tem p er a t ur e ( o c) v cnt l =5v f i gure 6. outp ut offset (v ou t -v re fe n ) vs. junction t e m p e r a t u r e f i gure 7. outp ut offset (v ou t -v re fe n ) vs. junction t e mperature -40-200 20406080100 0 1 2 3 4 5 6 sourcing v cntl =5v , v in =1.8v v cntl =3.3v , v in =1.8v v cntl =5v , v in =2.5v v cntl =3.3v , v in =2.5v current limit (a) ju n c i t i on te m p e r a t u r e ( 0 c) -40-20 0 20406080100 0 1 2 3 4 5 6 sinking v cntl =5v , v in =1.8v v cntl =3.3v , v in =1.8v v cntl =5v , v in =2.5v v cntl =3.3v , v in =2.5v current limit (a) j unc i t i on te m p e r a t ur e ( 0 c) f i gure 8. curr e n t limit vs. junction t e mperat ure f i gure 9. curr e n t limit vs. junction t e mperat ure
5 FP6137C -1.2-ja n-2007 FP6137C fitipow e r integrated technology lnc. t y pical performance curves (continued) f i gure 1 0 . output short-circ u it protection f i gure 1 1 . output short-circ u it protection f i gure 1 2 . 1.25 v out @ 2a t r a n sie n t resp on se f i gure 1 3 . 0.9 v out @ 2a t r a n sient response source v cnt l =3.3v vi n =2.5v v refe n =1.25v sink v cnt l =3.3v v in =2.5v v ref e n = 1 .25v sw itch i ng fr eque nc y = 1k hz v cntl =3. 3 v v refen =1.25v 2 a sw itch i ng fr eque nc y = 1k hz v cntl =3. 3v v refen =0. 9 v 2 a
6 FP6137C -1.2-ja n-2007 FP6137C fitipow e r integrated technology lnc. outline information sop-8 (exp o sed pad) pa ckage (uni t: mm) thermal pad y x h d e e b 7 o (4x) y a2 a a1 dimensions in millimeter symbols min nom max a 1.45 1.50 1.55 a1 0.00 --- 0.10 a2 --- 1.45 --- b 0.33 --- 0.51 c 0.19 --- 0.25 d 4.80 --- 5.00 e 3.80 --- 4.00 e --- 1.27 --- h 5.80 --- 6.20 l 0.40 --- 1.27 y --- --- 0.10 ? 0o --- 8o x 2.41 typ y 3.30 typ c l life su pp ort po lic y fitipow e r ?s produ cts are not autho rized fo r use as critical components in life s upport devices or other m edical sy stems. note 1 packa g e body size s exclude m o ldfla- shand ga te b urrs note 2 di men s ion l is meas ured in ga ge plane note 3 to le rance 0.10 mm unless othe rwise specified note 4 co nt ro l l i ng di m e nsi o n i s m i l l i met e r . conver ted in ch dimensi o n s are not necessaril y exact. note 5 fol lowed fr om jedec ms-012 note 6 x, y di mensions i n i nches x 0. 0 95(t y p) y 0. 135( t y p)
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