low power-loss voltage regulators pq20vz51/pq20VZ11 pq20vz51/pq20VZ11 variable output, surface mount type low power-loss voltage regulators features low power-loss (dropout voltage: 0.5v) compact surface mount package both the 0.5a output pq20vz51 and the 1a output pq20VZ11 have high-precision outputs (reference voltage precision: 2.0%) variable output type (output voltage variable range: 1.5v to 20v) built-in on-off control function low dissipation current at off-state (iqs: max.5?) tape packaged type is available. ( 330mm reel: 3 000pcs., pq20vz5u / pq20vz1u ) applications car audio equipment vcr parameter symbol rating unit v in v c v adj i o p d t j t opr t stg t sol 24 24 7 0.5 1 8 150 ?0 to +80 ?0 to +150 260 (for 10s) v v v a w ?c ?c ?c ?c input voltage output contorol voltage output adjustment terminal voltage output current power dissipation (with infinite heat sink) junction temperature operating temperature storage temperature soldering temperature ? 1 ? 1 ? 1 ? 2 ? 3 ? 1 all are open except gnd and applicable terminals. ? 2 overheat protection may operate at 125?c<=t j <=150?c ? 3 for 10s absolute maximum ratings (t a =25?c) pq20vz51 pq20VZ11 outline dimensions (unit : mm) ?lease refer to the chapter " handling precautions ". 20vz51 6.6max 9.7max 2.5min 5.2 0.5 2.3 0.5 5.5 0.5 (0.5) (0.5) (0.9) (1.7) ? ? dc input(v in ) ? on/off control terminal(v c ) ? dc output(v o ) ? output voltage minute adjustment terminal(v adj ) ? gnd heat sink is common to ? (v o ). 0.5 +0.2 0.1 4 (1.27) ????? ? ? ? ? ? specific ic (0 to 0.25) internal connection diagram 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 using any sharp device. internet internet address for electronic components group http://sharp-world.com/ecg/
low power-loss voltage regulators pq20vz51/pq20VZ11 fig.1 test circuit fig.2 test circuit of ripple rejection parameter symbol conditions v i v o r eg l r eg i rr v ref t c v ref v i - o i q v c ( on ) i c ( on ) v c ( off ) i c ( off ) i qs input voltage output voltage load regulation line regulation ripple rejection reference voltage temperature coefficient of reference voltage dropout voltage quiescent current on-state voltage for control on-state current for control off-state voltage for control off-state current for control output off-state consumption current unitmax.typ.min. 4.5 1.5 ? ? 45 1.225 ? ? ? 2.0 ? ? ? ? v o =1.5v r 2 =225 ? to 14.6k ? ? 5 v in =11 to 21v, i o =5ma refer to fig. 2 ? 4 t j =0 to 125 ? c, io=5ma ? 4 , ? 6 i o =0 ? ? i o =0 ? v c =0.4v ? ? 0.2 0.2 60 1.25 1.0 0.2 4 ? ? ? ? ? ? 20 2.0 2.5 ? 1.275 ? 0.5 7 ? 200 0.8 2.0 5.0 electrical characteristics ? 4 pq20vz51 :io=0.3a, pq20VZ11 :io=0.5a ? 5 pq20vz51 :io=5ma to 0.5a, pq20VZ11 :io=5ma to 1.0a ? 6 input voltage shall be the value when output voltage is 95% in comparison with the initial value. ? 7 in case of opening control terminal ? , output voltage turns off. unless otherwise specified, v in =12v, vo=10v, ? 4 , r 1 =1k ? , vc=2.7v(t a =25 ? c) v v % % db v % v ma v a v a a v a a v v a v in v c i q i c 1k ? i o v o v c r l 47 f 0.33 f 47 f + r 2 r 1 v in e i e o 1k ? i o r l 0.33 f 47 f + r 2 r 1 + v o =v ref 1+ r 2 r 1 [r 1 =1k ? ,v ref nearly=1.25v] f=120hz(sine wave) e i(rms) =0.5v i o =0.3a rr=20 log(e i(rms) /e o(rms) ) 1 2 3 4 5 1 2 3 4 5
low power-loss voltage regulators pq20vz51/pq20VZ11 relative output voltage (%) output current i o (a) 0 20 40 60 80 100 0.5 1.0 1.5 2.0 pq20vz51 pq20VZ11 r 2 (k ? ) output voltage v o (v) 0.1 1 10010 r 1 =1k ? 0 5 10 15 20 reference voltage deviation ? v ref (mv) junction temperature t j ( ? c) 25 0 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 25 50 75 100 125 v in =12v , i o =5ma , v c =2.7v r 1 =1k ? ,r 2 =7k ? c i =0.33 f , c 0 =47 f fig.3 power dissipation vs. ambient temperature fig.5 output voltage adjustment characteristics fig.7 output voltage vs. input voltage (pq20vz51) fig.6 reference voltage deviation vs. junction temperature fig.8 output voltage vs. input voltage (pq20VZ11) fig.4 overcurrent protection characteristics (typical value) output voltage v o (v) input voltage v in (v) 0246 10121416 8 r l =20 ? r l = 2 0 4 10 12 14 6 8 16 r l =40 ? v c =2.7v , c i =0.33 f , c 0 =47 f t j =25 ? c r 1 =1k ? ,r 2 =7k ? output voltage v o (v) input voltage v in (v) 0246 10121416 8 r l =10 ? r l = 2 0 4 10 12 14 6 8 16 r l =20 ? v c =2.7v , c i =0.33 f , c 0 =47 f t j =25 ? c r 1 =1k ? ,r 2 =7k ? power dissipation p d (w) ambient temperature t a ( ? c) 20 0 0 5 10 20 40 60 80 100 p d : with infinite heat sink note) oblique line portion : overheat protection may operate in this area.
low power-loss voltage regulators pq20vz51/pq20VZ11 junction temperature t j ( ? c) dropout voltage v i o (v) 20 0 2 0 4 0 6 0 8 0 100 120 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 i o =1.0a i o =0.75a i o =0.5a i o =0.25a junction temperature t j ( ? c) dropout voltage v i o (v) 20 0 2 0 4 0 6 0 8 0 100 120 0 0.05 0.10 0.15 0.20 0.25 0.30 i o =0.5a i o =0.4a i o =0.3a i o =0.2a i o =0.1a junction temperature t j ( ? c) quiescent current i q (ma) 0 2 5 5 0 7 5 100 125 20 0 1 2 3 4 5 v in =12v i o =0a v c =2.7v fig.9 dropout voltage vs. junction temperature (pq20vz51) fig.11 quiescent current vs. junction temperature fig.13 ripple rejection vs. output current (pq20vz51) fig.12 ripple rejection vs. input ripple frequency fig.14 ripple rejection vs. output current (pq20VZ11) fig.10 dropout voltage vs. junction temperature (pq20VZ11) t j =25 ? c rr=20 log(e i(rms) /e o(rms) ) i o =0.3a e i(rms) =0.5v (sine wave) v in =12v r 1 =1k ? r 2 =7k ? ripple rejection rr (db) input ripple frequency f (khz) 0.1 1 10 100 30 35 40 45 50 55 60 65 pq20VZ11 pq20vz51 t j =25 ? c e i(rms) =0.5v f=120hz (sine wave) v in =12v r 1 =1k ? r 2 =7k ? output current i o (a) ripple rejection rr (db) 0 0.1 0.2 0.3 0.4 0.5 10 20 30 40 50 60 70 80 90 100 t j =25 ? c e i(rms) =0.5v f=120hz(sine wave) v in =12v r 1 =1k ? r 2 =7k ? output current i o (a) ripple rejection rr (db) 0 1.00.5 10 20 30 40 50 60 70 80 90 100
low power-loss voltage regulators pq20vz51/pq20VZ11 output peak current i op (a) dropout voltage v i o (v) i op :output current when output voltage is 95% in comparison with the initial value 012345678910 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 t j =25 ? c output peak current i op (a) dropout voltage v i o (v) 012345678910 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 t j =25 ? c i op :output current when output voltage is 95% in comparison with the initial value junction temperature t j ( ? c) output peak current i op (a) 0 25 5 0 7 5 100 125 20 0.9 1.0 1.1 1.2 1.3 1.4 1.5 v in v o =2v 1v 0.5v i op :output current when output voltage is 95% in comparison with the initial value junction temperature t j ( ? c) output peak current i op (a) 0 2 5 5 0 7 5 100 125 20 2.0 1.5 v in v o =2v 1v 0.5v i op :output current when output voltage is 95% in comparison with the initial value fig.15 output peak current vs. dropout voltage (pq20vz51) fig.17 output peak current vs. junction temperature (pq20vz51) fig.19 power dissipation vs. ambient temperature fig.18 output peak current vs. junction temperature (pq20VZ11) fig.16 output peak current vs. dropout voltage (pq20VZ11) cu area 740mm 2 cu area 180mm 2 cu area 100mm 2 cu area 70mm 2 cu area 36mm 2 power dissipation p d (w) ambient temperature t a ( ? c) 20 0 0 1 2 3 20 40 60 80 100 pwb material : glass-cloth epoxy resin size : 50 50 1.6mm cu thickness : 35 m pwb cu
low power-loss voltage regulators pq20vz51/pq20VZ11 on/off operation as shown in the figure,on/off control function is available. v o v in c o dc input + high : output on low or open : output off on/off signal load 1 3 2 5 setting of output voltage output voltage is able to be set from 1.5v to 20v when resistors r1,r2 are attached to ? , ? , ? terminals. as for the external resistors to set output voltage, refer to the figure below or fig.5. + v ref 3 4 5 r 2 r 1 v o v o =v ref (1+r 2 /r 1 ) (r 1 =1k ? ,v ref nearly=1.25v) sleeve-packaged products tape-packaged products high-precision output type pq20vz51 pq20VZ11 high-precision output type pq20vz5u pq20vz1u output current 0.5a output 1.0a output model line-ups for tape-packaged products
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