1 notice the content of data sheet is subject to change without prior notice. in the absence of confirmation by device specification sheets, sharp takes no responsibility for any defects that may occur in equipment using any sharp devices shown in catalogs, data books, etc. contact sharp in order to obtain the latest device specification sheets before usin g any sharp device. features outline dimensions lead finish:lead-free solder plating (composition: sn2cu) applications (unit : mm) sheet no.: op06025 variable output,surface mount type low power-loss voltage regulators model line-up parameter symbol rating unit input voltage power dissipation *3 *2 junction temperature operating temperature -20 to +80 storage temperature -40 to +150 soldering temperature 260(10s) absolute maximum ratings *1 *1 all are open except gnd and applicable terminals. *2 p d : with infinite heat sink *3 overheat protection may operate at tj:125c to 150c 1 2 3 5 specific ic PQ20WZ51J00H pq20wz11j00h 1.low power-loss (dropout voltage:max.0.5v) 2.surface mount package 3.output current (0.5a:PQ20WZ51J00H) (1.0a:pq20wz11j00h) 4.reference voltage precision:2.0% 5.variable output voltage(3 to 20v) 6.built-in on/off control function 7.low dissipation current at off-state(iqs:max.5 a ) 8.built-in overcurrent and overheat protection functions 9.rohs directive compliant 1.personal computers 2.cd-rom drives 3.power supplies for various oa equipment output current (i o ) package type variable output taping sleeve taping sleeve 24 v v 5 150 ? c ? c a 1 ? c (ta=25 c ) v in v adj output current i o 0.5 p d 8w t j t opr t stg t sol ? c 3 1 2 3 4 5 product mass:(0.3g) ( ) : typical dimensions 20wz51 h 24 v v c output adjustment terminal voltage 4 dc input (v in ) on/off control terminal (v c ) dc output (v o ) output voltage adjustment terminal (v adj ) gnd internal connection diagram PQ20WZ51J00H / pq20wz11j00h 0.5a pq20wz5uj00h PQ20WZ51J00H 1a pq20wz1uj00h pq20wz11j00h PQ20WZ51J00H pq20wz11j00h *1 on/off control terminal voltage heat sink is common to terminal (v o ) 6.6 max. 5.2 0.5 9.7 max. 5.5 0.5 2.5 min. epoxy resin lead finish identification mark 0.5 +0.2 -0.1 4?(1.27) 2.3 0.5 (0.5) (0 0.25) (0.5) (1.7) (0.9)
2 sheet no.: op06025 electrical characteristics v % db parameter output voltage load regulation line regulation ripple rejection on-state voltage for control on-state current for control symbol conditions min. max. unit 2.5 - 60 rr 8 - - quiescent current output off-state consumption current input voltage - - 45 % refer to fig.2 - 5.0 off-state voltage for control v - - - 200 - - - v off-state current for control 0.8 - 4 PQ20WZ51J00H :i o 0.3a, pq20wz11j00h :i o 0.5a (unless otherwise specified,condition shall be v in =5v,v o =3.3, ,r 1 =2k ,r2=500 ,v c =2.7v,ta=25 c) 24 3.5 - v in v o 20 3.0 - reference voltage r eg l v ref % 2.0 r eg i v in =4 to 10v , i o =5ma temperature coefficient of reference voltage t c v ref tj=0 to +125c, i o =5ma 1.0 v c(on) dropout voltage i c(on) v i-o 0.5 - v v c(off) i c(off) i q i o =0a i qs a i o =0a 2.0 - a typ. + a a a 3 4 5 2 1 v v v in 0.33 f v c i c i q r 1 r 2 2k 47 f v o i o r l fig.1 test circuit eo + + 3 1 2 4 5 v ~ ~ ei v in 0.33 f v c r 2 r 1 2k 47 f i o r l fig.2 test circuit for ripple rejection PQ20WZ51J00H / pq20wz11j00h 4 5 - 4 v 2.706 2.574 2.64 4, 6 ma - - 2.0 v - - a 5 PQ20WZ51J00H :i o 5ma to 0.5a, pq20wz11j00h :i o 5ma to 1.0a 6 input voltage shall be the value when output voltage is 95% in comparison with the initial value. v o =vref(1+r 2 /r 1 ) [ r 1 =2k , v ref P 2.64v ] f=120hz (sine wave) ei(rms)=0.5v v in =5v v o =3.3v(r1=2k ) i o =0.3a rr=20log(ei(rms)/eo(rms)) - - - - - 7 i o =0a,v c =0.4v i o =0a,v c =0.4v in case of opening control terminal , output voltage turns off. 7 v ref v ref 2.7v
3 sheet no.: op06025 ambient temperature t a (c) note) oblique line portion:overheat protection may operate in this area. power dissipation p d (w) fig.3 power dissipation vs. ambient temperature output current i o (a) fig.4 overcurrent protection characteristics (typical value)( PQ20WZ51J00H ) PQ20WZ51J00H / pq20wz11j00h -20 0 20 40 80 100 120 140 60 150 0 5 8 10 p d :with infinite heat sink input voltage v in (v) output voltage v o (v) fig.8 output voltage vs. input voltage ( PQ20WZ51J00H ) 0 0.5 1.0 1.5 2.0 4 3 2 1 0 output voltage v o (v) fig.6 output voltage adjustment characteristics output voltage v o (v) 0 0.5 1.0 1.5 2.0 4 3 2 1 0 fig.5 overcurrent protection characteristics (typical value)( pq20wz11j00h ) output current i o (a) output voltage v o (v) junction temperature t j ( ? c) fig.7 reference voltage deviation vs. junction temperature (typical value) reference voltage deviation v ref (mv) 0 5 0.1 1 10 100 r2 (k ) r 1 =2k 10 15 20 -25 0 25 50 75 100 125 -15 -20 -25 -5 5 15 -10 0 10 20 25 PQ20WZ51J00H pq20wz11j00h v in =7v v o =3.3v(r 1 =2k ,r 2 =0.5k ) i o =0.3a ( PQ20WZ51J00H ) =0.5a ( pq20wz11j00h ) 012345678 1 0 2 5 6 7 3 4 8 r 1 =2k ,r 2 =0.5k v c =2.7v , c i =0.33 f , c 0 =47 f t j =25c v o =3.3v v i ?o =0.5v v i ?o =1v v i ?o =2v v i ?o =3v v o =3.3v v i ?o =0.5v v i ?o =1v v i ?o =2v v i ?o =3v r l = ? r l =11 r l =6.6
4 sheet no.: op06025 PQ20WZ51J00H / pq20wz11j00h fig.10 dropout voltage vs. junction temperature( PQ20WZ51J00H ) fig.12 quiescent current vs. junction temperature quiescent current iq(ma) junction temperature t j ( ? c) fig.13 ripple rejection vs. input ripple frequency input ripple frequency f (khz) ripple rejection rr (db) output current i o (a) ripple rejection rr (db) fig.14 ripple rejection vs. output current ( PQ20WZ51J00H ) 012345678 1 0 2 5 6 7 3 4 8 r 1 =2k ,r 2 =0.5k v c =2.7v , c i =0.33 f , c 0 =47 f t j =25c junction temperature t j ( ? c) dropout voltage v i-o (v) input voltage v in (v) output voltage v o (v) fig.9 output voltage vs. input voltage ( pq20wz11j00h ) -25 0 25 50 75 125 100 0.14 0.13 0.12 0.11 0.1 0.15 0.16 0.17 0.18 0.19 0.2 v in =3.135v, vc=2.7v, r 1 =2k , r 2 =0.5k , i o =0.3a 0.11 0.1 0.12 0.13 0.14 0.15 0.16 0.17 0.18 -25 0 25 50 75 125 100 v in =3.135v, vc=2.7v, r 1 =2k , r 2 =0.5k , i o =0.5a fig.11 dropout voltage vs. junction temperature( pq20wz11j00h ) junction temperature t j ( ? c) dropout voltage v i-o (v) 0 1 2 3 4 5 -25 0 25 50 75 125 100 v in =5v i o =0a v c =2.7v r 1 =2k r 2 =0.5k 45 40 50 55 60 65 70 75 80 pq20wz11j00h PQ20WZ51J00H 0.1 1 10 100 t j =25c i o =0.3a v in =5v e i(rms) =0.5v(sine wave) r 1 =2k , rr=20 log(e i(rms) /e o(rms) ) r 2 =0.5k 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 45 40 50 55 60 65 70 75 80 t j =25c v in =5v r 1 =2k r 2 =0.5k e i(rms) =0.5v f=120hz (sine wave) r l = ? r l =6.6 r l =3.3
5 sheet no.: op06025 PQ20WZ51J00H / pq20wz11j00h 0 1 2 3 -20 0 20 40 60 100 80 cu area 740mm 2 cu area 180mm 2 cu area 100mm 2 cu area 70mm 2 cu area 36mm 2 ambient temperature ta (c) mounting pcb pcb cu material size cu thickness : glass-cloth epoxy resin : 50501.6mm : 35 m fig.18 power dissipation vs. ambient temperature power dissipation p d (w) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 45 40 50 55 60 65 70 75 80 t j =25c v in =5v r 1 =2k r 2 =0.5k e i(rms) =0.5v f=120hz (sine wave) output current i o (a) ripple rejection rr (db) fig.15 ripple rejection vs. output current ( pq20wz11j00h ) 20 15 10 5 0 0123456 vc=2.7v, r 1 =2k , r 2 =0.5k (vo=3.3v) fig.16 circuit operating current vs. input voltage ( PQ20WZ51J00H ) input voltage v in (v) circuit operating current i bias (ma) 20 25 30 15 10 5 0 012345678 vc=2.7v, r 1 =2k , r 2 =0.5k (vo=3.3v) fig.17 circuit operating current vs. input voltage ( pq20wz11j00h ) input voltage v in (v) circuit operating current i bias (ma) r l =6.6 r l =11 r l = ? r l =3.3 r l =6.6 r l = ?
6 sheet no.: op06025 typical application setting of output voltage output voltage is able to set from 3v to 20v when resistors r 1 and r 2 are attached to , ?? terminals. as for the external resistors to set output voltage, refer to the figure below and fig.6. 1 3 2 5 4 + load ? ? ? ? ? ? v in c in on/off signal high:output on low or open:output off r 2 r 1 2k c o v o 4 5 3 + v ref v o r 2 r 1 PQ20WZ51J00H / pq20wz11j00h v o = v ref 1 r 2 /r 1 r 1 = 2k ,v ref P 2.64v dc input 47 f
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