1 fp6137 - 2.0 - may - 20 12 fp 6137a/b fitipower integrated technology lnc. 3a/2a b us t ermination r egulator pin assignment s s f package (so p - 8 ) (fp 6137b) sp pac k a ge (sop - 8 exposed pad ) (FP6137B) sp pa c k a ge (sop - 8 exposed pad) (fp6137a) t5 pa c k a ge ( t o - 252 - 5) (fp6137a/b) t6 pa c kage (to - 263 - 5) (fp6 1 3 7 a ) fig u re 1 . pi n a s signment o f f p6 1 3 7 (t o p v i e w ) ordering i nformation descript i o n t he f p 61 3 7a / b l i near regulator is designed to provide the transient peaks up to 3a/2a sourcing or sinking capability for ddr sdram bus termination ap p l ication. t he ou tpu t v ol ta ge c an tr ac k ha l f of input power by two external voltage divider resistors. the fp6137a/b provides current limit in both sourcing/sinking mode and thermal shutdown functio n which protects the excessive heating due to high current and high junction temperature. t he fp6 137a ar e available in sop - 8 ( e xposed p ad), to - 252 - 5 and to - 263 - 5 packages. t he f p 61 3 7b are av ai lable in the sop - 8 ( f used), sop - 8 ( e xposed p ad ) and to - 252 - 5 packages. feature s 3a /2a source or sink current p o wer mo sfet integrated lo w o utp ut v oltage offset cur r en t li mit protection t he r m al s hutdown protection a djusted output by external resistors s hutdown for standby or suspend mode sop - 8, to - 252 - 5 and to - 263 - 5 p ackages rohs compliant application s ddr - i a nd ddr - ii b us t er m i na ti o n v o l ta ge sstl - 2 and sstl - 3 termination active termination buses p : green g: green package type sf : sop - 8 (fused) sp: sop - 8 (ex p o s e d pad) t5: to - 252 - 5 t6: to - 263 - 5 a: 3a b: 2a t r: t a p e /re e l fp6137 r e f e n g n d v i n v c n t l vo u t 2 3 4 6 5 7 8 1 vc n t l vc n t l vc n t l r e f e n n c g n d v i n n c vc n t l n c vo u t 2 3 4 6 5 7 8 v c n t l 1 r e f e n n c g n d v i n n c v c n t l n c vo u t 2 3 4 6 5 7 8 gn d 1 5 4 3 2 1 vou t r e f e n vc n tl ( tab ) gn d vi n 5 4 3 2 1 vou t r efen vc n tl ( t a b ) g n d v i n http://
2 fp6137 - 2.0 - may - 20 12 fp 6137a/b fitipower integrated technology lnc. typical application circuit figure 2 . typical application circuit of fp6137 f u n cti o n al p i n d e scr i p t i o n pin name pin function vin power i nput p in. vin is the input power supply used to create the external refer ence voltage for regulating vout . vin sources current to vout by upper nmos. gnd c o mm o n g round p in. the v ou t s ink s current to gnd by lower nmos. vcnt l power i nput p in. the v c n t l p o w e r s u p p li e s t h e int e r n a l c o n t r o l c i r c u it r y a n d g a t e d r iv e v o lt a g e . refen chip e nable, and i nput r eference v oltage p in. the r e f e r e n c e v o lt a g e is h a lf o f t h e v i n p o w e r b y t w o e x t e r n a l v o lt age divide resistors. vout regu lat o r o utput p in. v ou t v o lt a g e t r a c k s t h e r e fe n v o lt a g e a n d is c a p a b le o f s o u r c ing o r s in k ing c u r r e n t u p t o peak 3a. c c n t l 4 7 f f p 6 1 3 7 a/b e n q 1 1 .8 v/ 2 . 5 v 3 . 3 v v c n t l g n d v o u t r e f e n v c n t l v i n c v o u t 4 7 0 f 0 . 9 v / 1 . 2 5 v v o u t r u 1 0 0 k 1 0 0 k c i n 4 7 0 f r d c s s 1 f v i n
3 fp6137 - 2.0 - may - 20 12 fp 6137a/b fitipower integrated technology lnc. block diagram figure 3 . block diagram of fp 6137 absolute maximum ratings vin to gnd -------------------------------- --- ------------------------------------ -- -------- - ---------------------- 6v vcntl to gnd -------------- - ----------------- ---- -------------------------------------- -- ------------------------ 6v power dissipation @25 c , (p d ) sop - 8 (fused) ------------------- -- - ---- ----------------------------------------------------------- 0.63w sop - 8 (exposed pad) -------- - ---- ---- ----------------------------------------------------------- 1.25w to - 252 - 5 ---------------- - ------------- --- ----------------------------------------------------------- 1.33w to - 263 - 5 ----------------- - ------------ --- ----------------------------------------------------------- 1.67w package thermal resistance , ( ja ) sop - 8 (fused) ----------- - ---------- --- --------------- ------- -------------------------------------- 160 c/w sop - 8 (exposed pad) --- - --------- ----- ------------- ------ --------------------------------------- 80 c/w to - 252 - 5 ---------------- - ----------- -- ---- -- -------------------------------------------------------- 75 c/w to - 263 - 5 ------ ------ - ------------------ --- ---------------------------------------------------------- 60 c/w junction temperature ------------- -- -------------- --- ----------------------------------------------------------- 150c storage temperature range ------------------------- --- ------------------------------------------------------ - 65c to 150c lead temperature (soldering, 10sec.) -- - ------------ --- ----------------------------------------- --- -------- 260c esd susceptibility hbm(human body mode) ---- - -------------------------- --- ----------------------------------------- -- -------- 2kv mm(machine mode) ------- - -------------------------------- --- -------------------------------------- -- ---------- 200v not e 1 stre s s e s b e y o n d th o s e l i s te d u n d e r ab s o l u te m a x i m u m r a ti n g s " m a y c a u s e p e r m a n e n t d a m a g e t o t h e d e v i c e . recommended operating conditions input voltage ( v in ) ------------ -- ----------------------------------- --- -------------------------------------------- +1.8v or +2.5v input voltage ( v cntl ) ------- --- ------------------------------------- --- ------------------------------------------- +3.3v to +5.5v operating temperature range ( t opr ) ---- -- ----------------- --- --------------------------------------------- - 40oc to +85oc e r r o r a m p c u r r e n t l i m i t & t h e r m a l s h u t d o w n g n d v o u t v i n v c n t l r e f e n + -
4 fp6137 - 2.0 - may - 20 12 fp 6137a/b fitipower integrated technology lnc. electrical character istics (v cntl =3.3v, v in =2.5v, v refen =0.5*v in , c out =10 f , t a =25 c, unless otherwise specified) parameter symbol test conditions min typ max units input operation voltage range (ddri and ddii) v in 1.6 2.5/1.8 v v cntl 3.3 5.5 v cntl quiescent current i cntl no load 1.5 3.0 ma shutdown current i sd v refen <0.2v 5 30 a output voltage output offset voltage v os no load , (v refen - v out ) - 20 0 20 mv load regulation (ddri and ddii) (note2) | v load | i out = 0 to 2a 20 mv i out = 0 to - 2a 20 protection current limit i lim fp6137a 3.0 3.5 a FP6137B 2.0 2.5 a thermal shutdown temperature (note 3 ) t sd 170 c t sd hysteresis 35 c shutdown control enable high level v ref - h 0.6 v shutdown low level v ref - l 0.2 v note 2 load regulation is measured at a constant junction temperature by using a 20ms low duty cycle current pulse. note 3 guarantee by design. ?
5 fp 6 137 - 2.0 - may - 20 12 fp 6137a/b fitipower integrated technology lnc. t ypical performance c urve s figure 4. turn - on threshold voltage vs. junction temperature figure 5. turn - off threshold voltage vs. junction temperature figure 6. output offset ( v out - v refen ) vs. junction temperature figure 7. output offset ( v out - v refen ) vs. junction temperature figure 8. current limit vs. junction temperature figure 9. current limit vs. junction temperature -40 -20 0 20 40 60 80 100 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 v cntl =5v turn-on threshold voltage (v) junction temperature ( o c) v cntl =3.3v -40 -20 0 20 40 60 80 100 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 v cntl =3.3v turn-off threshold voltage (v) junction temperature ( o c) v cntl =5v -40 -20 0 20 40 60 80 100 -8 -6 -4 -2 0 2 4 6 8 v cntl =3.3v v cntl =5v output offset v out -v refen (mv) junction temperature ( o c) v out =1.25v -40 -20 0 20 40 60 80 100 -8 -6 -4 -2 0 2 4 6 8 v out =0.9v v cntl =3.3v output offset v out -v refen (mv) junction temperature ( o c) v cntl =5v -40 -20 0 20 40 60 80 100 0 1 2 3 4 5 6 v cntl =3.3v, v in =2.5v v cntl =5v, v in =2.5v v cntl =5v, v in =1.8v current limit (a) junction temperature ( o c) sourcing v cntl =3.3v, v in =1.8v -40 -20 0 20 40 60 80 100 0 1 2 3 4 5 6 v cntl =5v, v in =2.5v v cntl =3.3v, v in =2.5v v cntl =5v, v in =1.8v c u rre n t l im it ( a ) junction temperature ( o c) v cntl =3.3v, v in =1.8v sink ing
6 fp6137 - 2.0 - may - 20 12 fp 6137a/b fitipower integrated technology lnc. typical performance curves (continued) figure10. output short - circuit protection figure11. output short - circuit protection figure12. 1.25v out @ 2a transient response figure 13. 1.25v out @ 3a transient response figure 14. 0.9v out @ 2a transient response figure 15. 0.9v out @ 3a transient response switching frequency =1 k hz v cntl =3.3v v refen =0.9v , 2a switching frequency =1 k hz v cntl =3.3v v refen =0.9v , 3a source v cntl =3.3v vi n =2.5v , v refen =1.25v sink v cntl =3.3v v in =2.5v , v refen =1.25v switching frequency=1 k hz v cntl =3.3v v refen =1.25v , 2a switching frequency=1 k hz v cntl =3.3v v refen =1.25v , 3a
7 fp6137 - 2.0 - may - 20 12 fp 6137a/b fitipower integrated technology lnc. outline information sop - 8 (fused) package (unit: mm) note followed from jedec mo - 012 - e symbols unit dimension in millimeter min max a 1.35 1.75 a1 0. 10 0.25 a2 1.25 1.50 b 0.31 0.51 d 4.80 5.00 e 3.80 4.00 e 1.20 1.34 h 5.80 6.20 l 0.40 1.27 c ar r i er d i m en si o n s
8 fp6137 - 2.0 - may - 20 12 fp 6137a/b fitipower integrated technology lnc. outline information (continued) sop - 8 (exposed pad) package (unit: mm) symbols unit dimension in millimeter min max a 1.25 1.7 0 a1 0. 00 0. 15 a2 1.25 1.55 b 0.3 1 0.51 d 4.80 5.00 d1 3.04 3. 50 e 3.80 4.00 e1 2.15 2.41 e 1.20 1.34 h 5.80 6.20 l 0.40 1.27 note followed from jedec mo - 012 - e. c ar r i er d i m en si o n s
9 fp6137 - 2.0 - may - 20 12 fp 6137a/b fitipower integrated technology lnc. outline information (continued) to - 2 52 - 5 package (unit: mm) symbols unit dimension in millimeter min max a 2.22 2.40 a1 0.01 0.13 b 0.55 0.65 d 6.00 6.20 d1 7.10 7.30 e 6.40 6.60 e1 5.30 5.45 e 1.22 1.32 l 1.42 1.65 h 9.50 10.20 v 3.60 4.00 note followed from jedec to - 252 - e. carrier d imensions
10 fp6137 - 2.0 - may - 20 12 fp 6137a/b fitipower integrated technology lnc. outline information (continued) to - 263 - 5 package (unit: mm) symbols unit dimension in millimeter min max a 4.064 4.826 a1 0.005 0.254 b 0.508 0.991 c 1.143 1.651 d 8.382 9.652 d1 6.858 7.858 e 9.652 10.668 e1 6.223 7.225 l 1.778 2.800 l1 1.146 1.676 e 1.600 1.800 h 14.605 15.875 note followed from jedec to - 263 - e c ar r i er d i m en si o n s li f e s upp ort p ol i c y fit ipo w e r s p r o d u c t s a r e n o t a u t h o r iz e d f o r u s e a s c r i t i c a l c o m p o n e n t s in li f e s u p p o r t d e v ic e s o r o t h e r m e d ic a l s y s t e ms .
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