utc u584/5/7 linear integrated circuit utc unisonic technologies co., ltd. 1 qw-r102-003,e 8a,5a,3a low dropout positive regulators adjustable and fixed description the utc u584/585/587 voltage regulators are monolithic integrated circuits, designed for use in applications requiring a well regulated positive output voltage with +5v input. the output voltage can be adjustable from 3.8 v down to 1.3v. features *low dropout performance. *adjustable output down to 1.3v. *line regulation typically below 0.1%. *load regulation typically below 0.1%. *output current can be up to 8 a for utc u584. *three-terminal adjustable or fixed 3.3v. to-220 1 to-263 1 to-252 1 1 to-263-3 1: adj/gnd 2: output 3: input block diagram current limiting over temperature protection voltage regulation amplifier safe area protection input output adjust
utc u584/5/7 linear integrated circuit utc unisonic technologies co., ltd. 2 qw-r102-003,e absolute maximum ratings parameter symbol value unit input voltage v in 7 v power dissipation p d internally limited w operating junction temperature range t j 0 to 125 c storage temperature t stg -65 to 150 c lead temperature (soldering 10 sec. ) t lead 300 c electrical characteristics parameter test conditions min typ max unit reference voltage u584 u585 u587 1.3v (v in -v out ) 3v, 10ma i out 8a 1.3v (v in -v out ) 3v, 10ma i out 5a , 1.3v (v in -v out ) 3v, 10ma i out 3a * 1.225 1.25 1.275 v output voltage u584-3.3 u585-3.3 u587-3.3 4.75v v in 6.5v, 10ma i out 8a 4.75v v in 7v, 10ma i out 5a 4.75v v in 7v, 10ma i out 3a 3.234 3.300 3.366 v line regulation (note 1.2) u584/5/7 u584/5/7-3.3 2.75v v in 7v, i out = 10ma 4.75v v in 7v, i out = 0ma 0.1 0.2 % load regulation (note 1, 2, 3) u584/5/7 u584/5/7-3.3 v in -v out =2.5v.tj=25 c, 10ma<=i out <=i fullload v in =5v, tj=25 c, 0ma i out i fullload * 0.2 1.0 % dropout voltage v ref =1%,i out = i fullload tj>=25 c tj<=25 c 1.2 1.2 1.3 1.35 v v current limit (note 3) u584 u585 u587 v in -v out =3 v v in -v out =3 v v in -v out =3 v * 8.0 5.0 3.0 8.5 5.5 3.6 a adjust pin current 55 120 a adjust pin current change (note 3) 1.5v<=(v in -v out ) <=3 v, 10ma<=i out <=i fullload 0.2 5 ma minimum load current 1.5v<=(v in -v out ) <=3v * 2 10 ma quiescent circuit current v in <=5v * 8 13 ma ripple rejection f=120hz, c out =25 atant, v in -v out =2.5v , i out = i fullload 60 72 db temperature stability 0.5 % long-term stability ta=25 c, 1000hrs 0.03 1.0 % rms output noise (% of v out ) ta=125 c, 10hz<=f<=10khz 0.03 % thermal resistance junction to case u584 u587 1.6 3.0 c /w thermal resistance junction to a mbient , ja u585 60 c /w thermal resistance junction to t ab , jt u585 2.7 c /w
utc u584/5/7 linear integrated circuit utc unisonic technologies co., ltd. 3 qw-r102-003,e the * denotes specifications which apply over the specified operating temperature range. note 1 : load and line regulation are measured at a constant j unction temperature by low duty cycle pulse testing. note 2 : line and load regulation are guaranteed up to the maximum power dissipation (15w for the utc u584, 10w for the utc u585). power dissipation is determined by input / output differential and the output current. guaranteed maximum output power will not be available over the full input-output voltage range. note 3 : i fullload is defined as the maximum value of output load current as a function of input-to-output voltage. output current can be different for different input-to-output voltage. application circuit (adjustable) tab i adj vin 1 2 3 4.74v r2 221 ? 1% r1 127 ? 1% c2 10 f c1 10 f v out utc u584/5/7 tant v ref required for stability v out =v ref* (1+r2/r1)+i adj* r2 3.45v @7.5a application circuit (3.3v) utc u584/5/7 vin>=4.75v 3.3v 8a, 5a, 3 a 10uf 22uf
utc u584/5/7 linear integrated circuit utc unisonic technologies co., ltd. 4 qw-r102-003,e typical performance characteristics u584 u584 u584 u585 u585 u585 u587 u587 u587
utc u584/5/7 linear integrated circuit utc unisonic technologies co., ltd. 5 qw-r102-003,e u584 u584 u584 u585 u585 u585
utc u584/5/7 linear integrated circuit utc unisonic technologies co., ltd. 6 qw-r102-003,e u587 u587 u587 u584 u585 u587 u584 u585 u587
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