300ma low consumption linear regulator lr 8552 general description lr8552 series are a group of positive voltage output , high precise, and high psrr and low power consumption voltage regulator . voltages are selectable in 100mv steps within a range of 1.2v to 3.6 v. it also can be customized on command. lr8552 series have excellent load and line transient response and good temperature characteristics, which can assure the stability of chip and power system. and it uses trimming technique to guarantee output voltage accuracy within 2%. lr8552 series ar e available in sot - 23 - 3, sot - 23 - 5, sot - 89 - 3 and to - 92 package s , which are lead ( pb) - free. features ? low quiescent current: 2ua at 5v ? 60db psrr at 100hz ? low o utput n oise : 44 uv rms ? low d ropout: 280mv at 150ma load ? low temperature coefficient: 100ppm/ ? c ? excel lent line regulation: 0.05%/v ? highly accurate: 2% applications ? reference voltage source ? battery powered equipment ? hand - hold equipment ? wireless lan ? gps receivers typical application block diagram leshan radio company, ltd. 1 / 7 lr8552
markin g information (note 1) product classification lr8552 c b3 tr marking exzz e : product code x: output voltage zz: date code product classification lr8552 c b 5tr marking exzz e : product code x: output v oltage zz: date code product classification lr8552 c c3 tr marking afxx yybzz af: product code xx: output voltage yy: l ot no. b: fab code zz: date code product classification lr8552 chbg marking exzz e : product code x: output voltage zz: date code gnd ground vout output voltage vdd supply voltage input n ote 1 e: product code x: output voltage code vout code vout code vout code 1.2v 2 2.1v 1 3.0v 0 1.3v 3 2.2v 2 3.1v 1 1.4v 4 2.3v 3 3.2v 2 1.5v 5 2.4v 4 3.3v 3 1.6v 6 2.5v 5 3.4v 4 1.7v 7 2.6v 6 3.5v 5 1.8v 8 2.7v 7 3.6v 6 1.9v 9 2.8v 8 2.0v 0 2.9v 9 x x: output voltage: e.g. 12=1.2v, 25=2.5v, 36=3.6v. z: the year of manufacturing, 7 stands for year 2007, 8 stands for year 2008,and 0 stands for year 2010. z: the week of manufacturing. a stands for week 1, z stands for week 2 6, a stands for week 27, z stands for week 52. ordering information lr8552 1 2 3 4 code description 1 temperature & rohs: c: - 40~85 ? c, pb free rohs std. 2 package type: b3 : sot - 23 - 3 b5: sot - 23 - 5 c3: sot - 89 - 3 h: to - 92 3 packing type: tr:tape&reel (standard) bg:bag (to - 92) 4 output voltage: e.g. 12=1.2v 25=2.5v 36=3.6v leshan radio company, ltd. 2 / 7 1 8 3 0 z 2 9 4 3 5 4 6 1 5 0 0 7 2 a 6
abso lute maximum rating parameter value max input voltage 10 v operating junction temperature (t j ) 125 ? c ambient temperature (t a ) - 40 ? c ~85 ? c power dissipation sot - 23 - 3, sot - 23 - 5 250mw sot - 89 - 3, to - 92 500mw storage temperature (t s ) - 40 ? c ~150 ? c lead temp erature & time 260 ? c , 10 sec note 2 : exceed these limits to damage to the device. note 3 : exposure to absolute maximum rating conditions may affect device reliability. recommended work conditions parameter value input voltage range max. 8 v ambient t emperature - 40 ? c ~ 85 ? c electrical characteristics test conditions: c in =1uf,c out =1uf,t a =25 ? c, unless otherwise specified. symbol parameter conditions min typ max units v dd input voltage 8 v v out output voltage v out >1.5v v dd =set v out +1v 1ma i out 1 0ma v out x0.98 v out v out x1.02 v v out <=1.5v v out - 0.03 vout v out + 0.03 v i out (max.) ( note 4) maximum output current v dd - v out =1v 30 0 ma v drop dropout voltage i out =150ma v out =3.0v 280 mv vout vin vout ? ? ? line regulation i out =10ma 4v v dd 6v 0.05 0.2 %/v vout ? load regulation v dd =set v out +1v 1ma i out 300ma 150 mv is supply current v dd =set v out +1v v out floating 2 3 ua vout t vout ? ? ? output voltage temperature coefficient i out =10ma 100 ppm/ ? c psrr ripple rej ection f=100hz, ripple=0.5vp - p, v dd =set v out +1v 60 db en output noise bw=10hz~100khz 44 uvrms note 4 : the maximum power rating of each package is a constant, so along with the change of i load , the v dd - v out should be controlled to a certain range to ensure the normal operation. leshan radio company, ltd. 3 / 7 vout vin vout ? ? ? vout ? vout t vout ? ? ?
typical performance characteristics leshan radio company, ltd. 4 / 7
test waveforms l ine t ransient r esponse ( c in =c out =1uf, vin=4 ? 5v, vout=3v ) channel 1: input voltage channel 2: output voltage l oad t ransient r esponse ( c in =c out =1uf, i out =1 ? 100ma, vout=3v) channel 1: output current channel 2: output voltage leshan radio company, ltd. 5 / 7
package line package sot23 - 3 devices per reel 30 00 pcs un it mm package dimension package sot - 23 - 5 devices per reel 3 000 pcs unit mm package dimension : leshan radio company, ltd. 6 / 7
package line(contin u ed) package sot - 89 - 3 devices per reel 1 000 pcs unit mm package dimension : package to - 92 devices per bag 1 000 pcs unit mm package dimension : leshan radio company, ltd. 7 / 7
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