low power-loss voltage regulators pq7vz5 pq7vz5 outline dimensions (unit : mm) features low power-loss (dropout voltage: max. 0.5v) variable output type (1.5v to 7v) surface mount type package (equivalent to eiaj sc-63) output current: max.0.5a low dissipation current at off-state (iqs: max. 5?) built-in on/off control function reference voltage precision: 2.0% tape packaged type is also available. (reel: 3 000pcs.) applications personal computers word processors printers camcoders personal information tools(pda) parameter symbol rating unit v in v c v adj i o p d t j t opr t stg t sol 10 10 7 0.5 8 150 ?0 to +80 ?0 to +150 260(for 10s) v v v a w ?c ?c ?c ?c input voltage on/off control terminal voltage output adjustment terminal voltage output current power dissipation junction temperature operating temperature storage temperature soldering temperature ? 1 ? 1 ? 1 ? 2 ? 3 ? 1 all are open except gnd and applicable terminals. ? 2 p d : with infinite heat sink. ? 3 overheat protection may operate at 125<=t j <=150?c absolute maximum ratings (t a =25?c) 7vz5 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) ? ? v in ? on/off control ? v out ? o adj ? gnd 0.5 +0.2 0.1 4 (1.27) ????? ? ? ? ? ? specific ic (0 to 0.25) internal connection diagram heat sink is common to ? (v out ) variable output, compact surface mount type low power-loss voltage regulators please refer to the chapter " handling precautions ". 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 pq7vz5 fig. 4 overcurrent protection characteristics (typical value) parameter symbol condition input voltage output voltage variable range load regulation line regulation ripple rejection dropout voltage reference voltage temperature coefficient of reference voltage on-state voltage for control on-state current for control off-state voltage for control off-state current for control quiescent current output off-state consumption current unitmax.typ.nin. 3.4 1.5 ? ? 45 ? 1.225 ? 2.0 ? ? ? ? ? ? ? 0.2 0.2 60 ? 1.25 1.0 ? ? ? ? 4 ? 10.0 7.0 2.0 2.5 ? 0.5 1.275 ? ? 200 0.8 2 7 5 electrical characteristics ? 4 in case of opening control terminal ? , output voltage turns off. (unless otherwise specified, conditions shall be v in =5v, v o =3v(r 1 =1k ? ), io=0.3a, v c =2.7v, t a =25 ? c) v in v o r eg l r eg i rr v i -o v ref t c v ref v c(on) i c(on) v c(off) i c(off) i q i qs ? ? i o =5ma to 0.5a v in =4 to 10v, i o =5ma refer to fig. 2 v in =3.4, i o =0.3a ? i o =5ma, t j =0 to 125 ? c ? 4 ? i c =0a v c =0.4v, i c =0a i c =0a v c =0.4v v v % % db v v % v a v a ma a fig. 1 test circuit fig. 3 power dissipation vs. ambient temperature 0 20 0 p d p d :with infinite heat sink 8050 100 150 5 10 power dissipation p d (w) ambient temperature t a ( ? c) 0 0.5 1.0 1.5 2.0 4 3 2 1 0 output voltage v o (v) output current i o (a) v i o =5v v i o =2v v i o =0.5v t a =25 ? c v o =3v(r 1 =1k ? ,r 2 =1.4k ? ) v i o =1v fig. 2 test circuit for ripple rejection v a a v v a v in v c i q 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) ) v in =5v v o =3v(r 1 =1k ? ) 1 2 3 4 5 1 2 3 4 5 note) oblique line portion : overheat protection may operate in this area.
low power-loss voltage regulators pq7vz5 fig. 5 output voltage adjustment characteristics fig. 6 reference voltage deviation vs. junction temperature (typical value) fig. 7 output voltage vs. input voltage fig. 9 d ropout voltage vs. junction temperature (typical value) fig. 8 c ircuit operating current vs. input voltage fig.10 on-state voltage for control vs. junction temperature (typical value) 0 0.1 1 01 100 1000 1 2 3 4 5 6 7 8 output voltage v o (v) r 2 (k ? ) r 1 =1k ? 0 2 5 5 0 7 5 100 125 6 2 2 6 8 4 0 4 8 v in =5v v o =3v(r 1 =1k ? ,r 2 =1.4k ? ) i o =0.3a 10 reference voltage deviation ? v ref (mv) junction temperature t j ( ? c) 10 25 0 01234 7 56 1 2 3 4 r l = r l =1.2 ? r l =0.6 ? output voltage v o (v) input voltage v in (v) t a =25 ? c v o =3v(r 1 =1k ? ,r 2 =1.4k ? ) 0 01234 7 65 10 20 30 r l = r l =10 ? r l =6 ? t a =25 ? c v o =3v (r 1 =1k ? , r 2 =1.4k ? ) circuit operating current i bias (ma) input voltage v in (v) 25 0 5 025 10075 125 3.0 2.5 1.5 2.0 0.5 1.0 0 on-state voltage for control v c(on) (v) junction temperature t j ( ? c) v in =5v v o =3v(r 1 =1k ? ,r 2 =1.4k ? ) i o =0.3a 25 0 5 025 10075 125 0.5 0.4 0.2 0.3 0.1 0 dropout voltage v i o (v) junction temperature t j ( ? c) v in =0.95v o v o =3v(r 1 =1k ? ,r 2 =1.4k ? ) i o =0.5a i o =0.4a i o =0.3a i o =0.2a i o =0.1a
low power-loss voltage regulators pq7vz5 fig.11 quiescent current vs. junction temperature (typical value) fig.13 output peak current vs. junction temperature (typical value) fig.12 ripple rejection vs. input ripple frequency fig.14 power dissipation vs. ambient temperature (typical value) 0 25 0 2 5 5 0 7 5 100 125 3 1 4 2 v in =5v v o =3v(r 1 =1k ? ,r 2 =1.4k ? ) i o =0.3a 5 quiescent current i q (ma) junction temperature t j ( ? c) 25 0 5 025 10075 125 2.0 1.5 1.0 0.5 i op :output current when output voltage is 95% in comparison with the initial value 0 output peak current i op (a) junction temperature t j ( ? c) v in v o =5v 2v 1v v in =5v v o =3v(r 1 =1k ? ,r 2 =1.4k ? ) 0.5v pwb material : glass-cloth epoxy resin size : 50 50 1.6mm cu thickness : 35 m pwb cu 0 20 0 cu area 740mm 2 cu area 180mm 2 cu area 100mm 2 cu area 70mm 2 cu area 36mm 2 20 40 60 80 100 1 2 3 power dissipation p d (w) ambient temperature t a ( ? c) 0 0.1 101 100 20 40 60 10 30 50 70 input ripple frequency f (khz) v in =5v v o =3v(r 1 =1k ? ,r 2 =1.4k ? ) io=0.3a e i(rms) =0.5v ripple rejection rr (db)
low power-loss voltage regulators pq7vz5 setting of output voltage output voltage is able to be set from 1.5v to 7v when resistors r 1 , r 2 are attached to ? , ? , ? terminals. as for the external resistors to set output voltage, refer to the figure below or fig.5. sleeve-packaged products model line-ups for tape-packaged products tape-packaged products high-precision output type pq7vz5 high-precision output type PQ7VZ5U output current 0.5a output + 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)
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