de sign specifica tion 30 0m a l o w noi s e d u al l d o p l 2211 feat ure s ? g u ar an te e d 300 m a lo ad / ldo ? ultra low ou tpu t no ise: 1 0 0 v rms ? lo w gr ou n d c u rre nt: 2 0 0 a ? very l o w d r o p out : 18 0m v @ 3 0 0 m a ? zero s hut do w n su p p l y cur r e n t ? ttl-logic-c ontrolled i nde pe ndent e n a b le input ? th erm a l an d cu rren t lim i t p r otectio n s ? low esr cap acito r co m p atib i lity to ach iev e ? ultra low d r oop lo ad t r an sient respon se ? ultra fast lin e t r an sien t respo n se ? ti ny 1 0 p i n 3m m x 3m m m l f ( 10l -t dlm f ) pac k age ? fi xed o p t i o ns 1. 5v , 1. 8v , 2. 5v , 2. 8v , 3. 0 v a n d 3 . 3 v applications ? cellu lar and cord less pho n e s ? w i reless l a n cards ? palm t op com put ers ? pers onal c o m m uni cat i on eq ui pm ent des cript ion th e pl22 11 is a d u a l cmos lo w dro pou t lin ear regu lato r with u ltra-low-n o i se o u t pu t, very lo w d r op ou t vo ltag e an d v e r y l o w gr ound cu rr en t. th e pl221 1 op er ates f r o m a 2 . 5v t o 5 . 5 v in pu t vo ltag e r a ng e an d d e li v e r s up t o 300m a , w ith low d r op ou t of 20 0 m v at 30 0m a. the ot he r feat ures of pl 2 2 1 1 i n cl u d e s h ort - ci rcui t p r ot ect i o n an d t h erm a l-sh ut d o w n p r ot ect i on. th e pl22 11 i s d e sign ed esp ecially f o r batter y - p ow er ed po rt abl e de vi ces. it s l o w noi s e feature m a kes pl 2211 ideal for noise-sensi tive pers onal comm unicatio n applications . ot he r key a p pl i cat i on a r ea s f o r pl2 2 1 1 al so i n cl ude pal m t op c o m put ers, pc m c i a ca rds an d w l a n car ds . the pl 2211 has a special fe atur e t h at if bo th en p i n is enabl e d si m u l t aneo usl y t h e out put o f l d o2 del a y s 2 0 u s fr om out put o f ld o 1 w h i c h hel p s t o m i ni m i ze i n rus h startup curre nt. th e pl221 1 is av ailab l e in ti n y 10p in 3 mm x 3 m m mlf (1 0l -td l m f ) pac k age wi t h f i xed o u t p ut v o l t age ve rsi o ns . typical applicat ion power ic lt d. - 1 - w w w . picsem i.com versi o n 1.0 mar 4 , 2007
de sign specifica tion 30 0m a l o w noi s e d u al l d o p l 2211 marking diagrams pin configuration ordering information part number output voltag e marking packag e PL2211 ? 15v z 1.5 dbamw 10l-t d lmf PL2211 ? 15u z 1.5 dbbmw 10l-t d lmf PL2211 ? 18v z 1.8 dbcmw 10l-t d lmf PL2211 ? 18u z 1.8 dbdmw 10l-t d lmf PL2211 ? 25v z 2.5 dbemw 10l-t d lmf PL2211 ? 25u z 2.5 dbfmw 10l-t d lmf PL2211 ? 27v z 2.7 dbgmw 10l-t d lmf PL2211 ? 27u z 2.7 dbhmw 10l-t d lmf PL2211 ? 28v z 2.8 dbimw 10l-t d lmf PL2211 ? 28u z 2.8 dbjmw 10l-t d lmf PL2211 ? 30v z 3.0 dbkmw 10l-t d lmf PL2211 ? 30u z 3.0 dblmw 10l-t d lmf PL2211 ? 33v z 3.3 dbmmw 10l-t d lmf PL2211 ? 33u z 3.3 dbnmw 10l-t d lmf not e 1: c ont ac t t h e fact ory fo r ot her o u t p ut vol t a ge s t h at a r e n o t i n t h e a b ove t a bl e pin des c riptions nam e p i n n o . t y p e fun c t i o n in 1 suppl y suppl y voltage. 2 . 5v ~ 5.5v. en1 2 logic input 1 enable/shutdo wn. cmos compat ib le input. logic ?h? : enable, logic ?l? : shutdow n. en2 3 logic input 2 enable/shutdo wn. cmos compat ib le input. logic ?h? : enable, logic ?l? : shutdow n. by p 4 by p a s s reference voltag e b y pass pin. co nnect 0.01uf Q c by p Q 0.1uf to gnd t o reduce output noise. ma y be left open . gnd 6 grou nd grou nd pin out 2 9 analog output2 regulator 2 outp ut. out 1 10 analog output1 regulator 1 outp ut. power ic lt d. - 2 - w w w . picsem i.com versi o n 1.0 mar 4 , 2007
de sign specifica tion 30 0m a l o w noi s e d u al l d o p l 2211 block di agram power ic lt d. - 3 - w w w . picsem i.com versi o n 1.0 mar 4 , 2007
de sign specifica tion 30 0m a l o w noi s e d u al l d o p l 2211 absolute maximum ratings s y m b o l p a r a m e t e r v a l u e u n i t v in dc suppl y volta ge at pin 1 -0.3 to +6.0 v v en enable input voltage at pin 2 and pin 3 -0.3 to +6.0 v p d continuous po wer dissipation internall y limited w t st g storage t e mper ature ran ge -65 to +150 r ja thermal resistance, junction-to -air 235 /w t j, m a x oper ating junction tempe r ature -40 to +125 t l lead tempe r atu r e (soldering, 5se c ) 260 esd esd capability , hbm model 2 kv recommended operating conditions s y m b o l p a r a m e t e r v a l u e u n i t v in dc suppl y volta ge at pin 1 +2.5 to 5.5 v v en enable input voltage at pin 2 and pin 3 0 to v in v t a oper ating ambient tempe r ature -40 to +85 electrical characte r ist i cs (v in =v out ( nom i n a l) + 1 v or 2.5v ( w h i ch ever is g r eater), v en =v in , c in =c out = 1f , i o =1 ma, t a =2 5 c , unless other w i s e note d .) s y m b o l p a r a m e t e r test conditi o n s m i n . t y p . m a x . u n i t v in suppl y voltage 2.5 5.5 v ? v out output voltage a ccuracy i o = 1ma ( both regulator ) -1.0 1.0 % ? v load load regulation i o =1ma to 300m a ( both re gulato r ) 0.5 % ? vl line line regulation dv out /( dv in *v out ( nominal) )*100% v in =v out ( nominal) +0.1v (or 2.5v, w h ichever is greater) to 5.5 v , i o =1ma ( both regulator ) 0 . 0 5 % / v i lo ad = 300ma ( both regulato r ) 180 220 mv v dp dropout voltage (note 1 ) i lo ad = 100ma ( both regulato r ) 80 100 mv i o maximum output curre nt continuous 300 ma rms v in -v out =1.3v ( regulator 1 ) 3 5 0 6 0 0 ma ilim curren t limit/out put cur r ent v in -v out =1.3v ( regulator 2 ) 3 5 0 6 0 0 i q standb y curr ent v en = 0v 0.02 1 a i g grou nd pin curre nt i lo ad1 = i lo ad 2 =1 ma ( both r egula t or active) 200 300 a psrr f = 100hz, cout= 1f, cb yp=10n f 75 db psrr ripple rejection, i out = 10ma, f = 10khz, cout= 1f, cb yp=10n f 70 db output voltage n o ise c out = 1f, c b yp = 10nf, f = 10hz to 100 k hz (vp-p/2/ 2) 1 0 0 v rms t h e r m a l shutdo w n tempe r atur e 1 6 5 c thermal shutdo w n h y ste r esis 20 c v ih logic input high voltage (en) ( both r egulator ) 1.2 v v il logic input lo w voltage (en\) ( both r egulator ) 0.4 v i en logic input curr e n t (shdn\ ) ( both r egulator ) -1 1 a no te 1 : th e dro pou t vo ltag e is d e fi n e d as v in - v out , w h e n v out is 2% belo w t h e v a lu e o f v out m easured for v in =v ou t( nom i nal) + 1v . power ic lt d. - 4 - w w w . picsem i.com versi o n 1.0 mar 4 , 2007
de sign specifica tion 30 0m a l o w noi s e d u al l d o p l 2211 operati o n description th e pl221 1 ar e u ltr a- l o w - no ise, low-d r op ou t, l o w- qui esce nt c u r r e nt l i n ear re g u l a t o rs desi g n e d fo r space - restricted applications. t h es e devi ces ca n su ppl y l o ad s u p t o 3 0 0 m a . as sh ow n i n t h e b l ock di ag ra m , t h e pl22 1 1 con s i s t s of a hi ghl y acc u r at e ban d ga p co re, n o i s e by pass circuit, er ro r a m plifier, p-c h a nnel pass t r an s i st or a n d an i n t e rnal fee d b ack v o l t a ge di vi de r. t h e 1. 0 v ba n d gap refe rence is c o nnecte d t o th e er ro r am plifier?s in vertin g in pu t. th e erro r am p lifier co m p ares this refere nce with th e feed b a ck vo ltag e an d am p lifies th e d i fferen ce. if th e feedb a ck vo ltag e is lower t h an t h e referen c e vo ltag e , t h e p a ss tran sistor g a te is p u lled low. th is allo ws m o re cur r ent t o pas s t o t h e out pu t an d in creases th e ou tpu t vol t a ge . i f t h e feed bac k vol t a ge i s t o o hi gh , t h e pass tran sistor g a te is p u lled h i gh , allowing less cu rren t to pass t o t h e out put . the out put v o l t a g e i s feed bac k t h r o u g h an i n t e rnal resi st or vol t a ge di vi der co nnect e d t o the ou t pin . an e x ter n al bypass capacitor connected to b y p re duce s n o i s e at t h e o u t p ut . a d di t i onal bl oc ks in clu d e a cu rren t li m i ter, ov er tem p erature protection, and s hut do w n l ogi c. intern al p - c h annel pas s t r ansi s t or the pl 2211 fe ature a 1 ? (ty p ) p - c h an nel m o sfe t pass tr an sistor . th is pr ov id es sev e ral adva ntages over sim i lar desi g n s usi n g a pnp pass t r ansi st o r , i n cl udi ng l o n g er b a ttery life. th e p-ch ann e l m o sfe t re q u i r es no base d r i v e, wh ich co nsid erab ly red u c es qu iescen t curren t . pnp-based re gulators wast e considera b l e current i n d r op ou t wh en th e p a ss tran sist or sat u rates. they also use h i gh b a se-d r i ve cu rr en t u n d e r h e av y lo ads. th e pl22 11 doe s not su ff e r fr om t h ese p r o b l e m s and c o n s um e onl y 20 0 a o f qu iescen t cu rren t i n ligh t lo ad . current limit th e pl221 1 in clud es a curren t li m iter. it m o n ito rs th e out put c u r r e n t an d co nt r o l s t h e pa ss t r a n si st o r?s gat e v o ltag e to limit th e ou tpu t cu rren t un d e r 55 0 m a (typ). the o u t p ut ca n be s h ort e d t o gr o u n d f o r an i n de fi ni t e am ount o f t i m e wi t h out dam a gi n g t h e pa rt . enable i npu t the PL2211 features a n acti v e-h i gh en ab le in pu t (en) p i n th at allows on /off con t ro l o f t h e regu lato r. th e PL2211 bias current re duces to less than m i croam p ere of leak ag e current wh en it is shu t do wn . th e en ab le inp u t is ttl/cmos com p atible threshold for sim p le logic in terfacing . wh en en is ?h,? th e ou tpu t vo ltag e startup ri si ng t i m e i s 35 us t y pi cal l y at 3 00m a ou t put c u rre nt . c o n n ect e n pi n t o i n pi n f o r no rm al operat i on under voltage lock ou t w h en t h e inpu t supp ly go es to o low ( b el o w 2.0v ) th e pl221 1 pr odu ces an in tern al uv lo (u nd er vo ltag e l o ck out ) si g n a l t h at ge nerat e s a fa ul t si g n al an d sh ut s down t h e c h ip. t h is m echan i s m pr ot ect s t h e c h i p fr om pr o duci n g fal s e l ogi c d u e t o l o w i n put su p p l y . quick ch argi ng mode the pl 2 2 1 1 h a s a qui c k cha r ge bl ock t o get t h e refe ren ce up ve ry q u i c kl y by cha r gi ng t h e b y p ca paci t o r wi t h very hi g h cu rre nt w h en t h e chi p c o m e s out of s h ut d o w n . t h i s qui c k c h ar ge bl oc k st op s c h ar gi n g t h e b y p ca paci t o r whe n t h e re ference reac hes 95% of its nom i nal val u e and th en t h e ch ip switch e s ou t o f qu ick ch arg i ng m o d e t o no rm al operat i n g m ode. over tem p er ature pr otec tion ov er tem p eratu r e pro t ect io n li m its t o tal power di ssi pat i o n i n t h e pl 22 11 . wh en t h e j unct i o n te m p erature e x ceeds t j = + 15 5 c , th e therm a l sen s or si gnal s t h e s hut do w n l ogi c an d t u r n s of f t h e pass tran sistor. th e th erm a l sen s or tu rn s th e p a ss tran sistor on agai n aft e r t h e ic ?s ju nct i o n t e m p erat ure dr op s by 15 c, resu lting in a p u l sed o u t p u t d u ring co n tinuo us th erm a l- ove rl oa d c o ndi t i ons. th erm a l-ov erlo ad p r o t ectio n is d e sign to pro t ect t h e pl221 1 i n th e ev en t of a fau lt con d ition . for con tinu a l ope rat i o n, d o not excee d t h e abs o l u t e m a xim u m junct i o n te m p erature rat i ng of t j = + 150 c. opera ti n g re gi on a nd pow er dissip a ti on the pl 22 1 1 m a xim u m po w e r di ssi pat i o n depe n d s o n 1 ) the the r m a l resistance of t h e c a se an d ci rcui t boa r d , 2) t h e te m p erature differe nce between the die junction a nd am bi ent , an d 3 ) t h e rat e of ai r f l o w. t h e p o w e r di ssi pat i o n acros s t h e de vi ce i s : p = io ut ( vi n ? vo ut ) the m a xim u m po we r di ssi pat i o n i s : pm ax = (tj ? ta) / ( jc + ca ) whe r e (tj ? ta) is the temperat ure difference bet w ee n the pl 2211 die junction a n d the am bient air; j c is th e therm a l resistance of the pac k age; and ca is the t h erm a l power ic lt d. - 5 - w w w . picsem i.com versi o n 1.0 mar 4 , 2007
de sign specifica tion 30 0m a l o w noi s e d u al l d o p l 2211 resistance through the pc board , copper tra ces, and other materials to th e surrou nd ing air. th e g n d p i n o f t h e pl2 211 p e rf or m s th e d u a l f u n c tion o f pr ov id i n g an electr i cal co nn ection to g r ou nd and channeling he at away. connect t h e g n d pi n t o gr ou n d usi n g a l a rge p a d or g r o u n d pl ane. noise re ducti on for t h e pl221 1, an ex ter n al 0 . 01 f by pass capacitor b e tw een by p and g nd w i th inno vativ e n o i se b y p a ss sch e m e red u ces ou tpu t n o i ses dram atica l ly, ex h i b itin g 10 0 vrm s of out put v o l t a ge n o i s e wi t h c b y p = 0. 01 f and cout = 1 f. applicat ion information capa ci to r sel ectio n and reg u lato r stability use a 1 f cap acito r o n t h e pl22 11 input an d a 1 f capacitor on t h e output. la rge in pu t cap acito r v a lues an d l o we r esr s pr o v i d e bet t e r noi se reject i on a n d l i n e- transient res p onse. r e duce o u t p ut noi se a n d i m prove l o ad -t ra nsi e nt res p o n se , stab ility, an d power-supp ly rej ection by u s ing larg e out put ca pacitors . note that som e ceram ic dielectrics ex h i b it larg e cap acitan c e an d esr v a riation with te m p erature. w i t h dielectrics suc h as z5u and y5v, it may be necess a ry to use a 1 f or l a rge r o u t put ca paci t o r to en su re stabilit y at tem p eratu r es b e l o w -10 c. w i t h x7r or x5r dielectrics, 1 f is su fficien t at all o p e rating t e m p erat ures . a gra p h of t h e re gi o n of st ab l e c out esr v s . lo ad cu rrent is sho w n i n the typ i cal ch aracteristics. use a 0.01 f by pas s capac i t o r at b y p f o r l o w - out put vol t a ge noi se. the l eaka g e cu rren t go ing in to t h e b y p pi n sh o u l d be l e ss t h a n 10 n a . noise, psrr, and tra n sient response the pl 22 1 1 a r e desi g n e d t o del i v e r ul t r a-l o w noi se an d hi g h psr r , a s wel l as l o w dr o p o u t an d l o w qui esce nt currents in bat t ery-powe re d s y ste m s. the p l 2211 psrr i s 70 db at 10 0hz an d 60 db at 10 k h z ( s e e t h e p o we r- su ppl y r e ject i on r a t i o vs. fre que ncy g r ap h i n t h e typical charac teristic). whe n ope rat i ng fr om sou r ces ot her t h an bat t e ri es, i m p r ov ed supp ly- n o i se r e j e ctio n an d tr an sien t r e sp on se can be ac hieve d by increa sing th e v a l u es o f th e inpu t and o u t p u t b ypass cap acitors, an d throug h p a ssiv e filterin g techniques . the typical char acteristics sh ow th e pl22 11 line and loa d t r ansient res p ons e s. d r opout vo lta g e a reg u l ator?s min i m u m d r op ou t vo ltag e determin es th e lo west usab le su pp ly vo ltag e . in b a ttery-powered system s, th is d e term in es th e u s efu l en d-o f -life b a t t ery v o ltag e . because t h e PL2211 use a p-c h a nnel m o sfet pass tran sistor, th ei r d r op ou t vo ltag e is a fu n c tion of d r ain-to- sou r ce on resistan ce (rds(on ) ) m u ltip lied b y th e lo ad current (see t h e typical cha r acteristics). power ic lt d. - 6 - w w w . picsem i.com versi o n 1.0 mar 4 , 2007
de sign specifica tion 30 0m a l o w noi s e d u al l d o p l 2211 package information 5-pin sot-25 outline dimension 1 3 54 e e1 e1 e d b a2 a1 a r 1 r l2 l1 l detail a de tail a c 1 1 dime nsi on: mill imeter i n c h s y mbol m i n . t y p . m a x . m i n . t y p . m a x . a 1 . 4 5 0 . 0 5 7 a 1 0 . 1 5 0 . 0 0 6 a 2 0 . 9 0 1 . 1 5 1 . 3 0 0 . 0 3 6 0 . 0 4 5 0 . 0 5 1 b 0 . 3 0 0 . 5 0 0 . 0 1 1 0 . 0 2 0 c 0 . 0 8 0 . 2 2 0 . 0 0 3 0 . 0 0 9 d 2 . 9 0 0 . 1 1 4 e 2 . 8 0 0 . 1 1 0 e 1 1 . 6 0 0 . 0 6 3 e 0 . 9 5 0 . 0 3 7 e 1 1 . 9 0 0 . 0 7 5 l 0 . 3 0 0 . 4 5 0 . 6 0 0 . 0 2 0 0 . 0 1 8 0 . 0 2 4 l 1 0 . 6 0 0 . 0 2 4 l 2 0 . 2 5 0 . 0 1 0 r 0 . 1 0 0 . 0 0 4 r 1 0 . 1 0 0 . 2 5 0 . 0 0 4 0 . 0 1 0 ? 0 ? 4 ? 8 ? 0 ? 4 ? 8 ? 1 ? 5 ? 1 0 ? 15 ? 5 ? 10 ? 15 ? power ic lt d. - 7 - w w w . picsem i.com versi o n 1.0 mar 4 , 2007
de sign specifica tion 30 0m a l o w noi s e d u al l d o p l 2211 3-pin sot-23 outline dimension c d e a 1 a1 a2 e e1 1 1 e1 2 b 3 l1 l2 r d e tail a l r 1 d e tail a dime nsi on: mill imeter i n c h s y mbol m i n . t y p . m a x . m i n . t y p . m a x . a 1 . 4 5 0 . 0 5 7 a 1 0 . 1 5 0 . 0 0 6 a 2 0 . 9 0 1 . 1 5 1 . 3 0 0 . 0 3 6 0 . 0 4 5 0 . 0 5 1 b 0 . 3 0 0 . 5 0 0 . 0 1 1 0 . 0 2 0 c 0 . 0 8 0 . 2 2 0 . 0 0 3 0 . 0 0 9 d 2 . 9 0 0 . 1 1 4 e 2 . 8 0 0 . 1 1 0 e 1 1 . 6 0 0 . 0 6 3 e 0 . 9 5 0 . 0 3 7 e 1 1 . 9 0 0 . 0 7 5 l 0 . 3 0 0 . 4 5 0 . 6 0 0 . 0 2 0 0 . 0 1 8 0 . 0 2 4 l 1 0 . 6 0 0 . 0 2 4 l 2 0 . 2 5 0 . 0 1 0 r 0 . 1 0 0 . 0 0 4 r 1 0 . 1 0 0 . 2 5 0 . 0 0 4 0 . 0 1 0 ? 0 ? 4 ? 8 ? 0 ? 4 ? 8 ? 1 ? 5 ? 1 0 ? 15 ? 5 ? 10 ? 15 ? power ic lt d. - 8 - w w w . picsem i.com versi o n 1.0 mar 4 , 2007
de sign specifica tion 30 0m a l o w noi s e d u al l d o p l 2211 disclaim ers life support po wer ic ?s pr o duct s a r e n o t d e si gne d t o be u s ed as com p o n e nt s i n de vi ces i n t e nde d t o s u pp o r t or s u st ai n h u m a n l i f e. use o f power ic?s p r o d u c ts in co mp on en ts i n tended fo r su rg ical im p l an t in to t h e bod y, or o t h e r ap p licatio ns in wh ich fail u r e o f po wer ic ?s pr o duct s c o ul d cre a t e a si t u at i on whe r e pers o n al deat h or i n j u r y m a y occur, i s not a u t h ori z e d wi t h o u t t h e e x pres s written approval of power ic?s c h ief ex ecu tiv e officer. po we r ic will no t b e h e l d liab l e fo r an y d a m a g e s or clai ms resu lting fro m th e use o f its produ cts in m e d i cal ap p licatio ns. military power ic's p r od u c ts are no t desig n e d fo r u s e in m i l itary ap p lica tio n s . use of po wer ic?s pro d u c ts in m i litary ap p licatio ns is n o t au tho r ized with ou t th e exp r ess written ap pro v a l o f power ic ?s c h ief ex ecu tiv e officer. po wer ic will n o t b e h e l d liab l e for an y d a m a g e s or claim s resu ltin g fro m th e u s e of its p r od u c ts in m ili tary ap p licatio ns. right to make changes po wer ic reser v es t h e ri ght t o cha nge t h i s d o c um ent and/ o r t h i s p r o d u ct wi t h o u t n o t i ce. c u st om ers are a dvi se d t o c ons ul t their p o wer ic sales re prese n t a tive be fo re or deri ng . power ic lt d. - 9 - w w w . picsem i.com versi o n 1.0 mar 4 , 2007
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