www.belling.com.cn 1 2a linear regulator b l8559 generaldescription BL8559 series are a group of positive voltage output, high precise, and low power consumption voltage regulator. voltages are selectable in 100mv steps within a range of 1.2v to 3.6v. it also can be customized on command. BL8559 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 trimmingtechniquetoguaranteeoutputvoltage accuracywithin 2%. BL8559 series are available in sot223 package,whichislead(pb)free. features lowquiescentcurrent:26uaat5v highpsrr:60dbrangeto1khz lowoutputnoise:44uv rms lowdropout:430mvat1.5aload maximumoutputcurrent:2.5a highlyaccurate: 2% lowesrceramiccapacitorcompatible applications referencevoltagesource batterypoweredequipment pcperipherals wirelessdevices instrumentation typicalapplication v dd v out gnd in out cout cin lc1466 note: input capacitor (cin=1uf) and output capacitor (cout=4.7uf) are recommended in all application circuit (low esr ceramic capacitor is available). blockdiagram 0 100 200 300 400 500 600 700 800 900 0.0 0.5 1.0 1.5 2.0 2.5 iload(a) dropout(mv) dropoutvoltagevsoutputcurrent b bb BL8559 l8559 l8559 l8559
www.belling.com.cn 2 BL8559 markingdescription xx: output voltage code, e.g. 25=2.5v, 33=3.3v; y: the year of manufacturing, 9 stands for year 2009, 0 stands for year 2010; w: the week of manufacturing. a stands for week 1, z stands for week 26, a stands for week 27, z stands for week 52. orderinginformation BL8559 1 2 3 4 code description 1 temperature&rohs: c:40~85 c,pbfreerohsstd. 2 packagetype: la:sot223,atype lb:sot223,btype 3 packingtype: tr:tape&reel(standard) 4 outputvoltage: e.g.25=2.5v;33=3.3v; pinconfiguration items description gnd ground v out outputterminal v dd inputterminalandsupplypinfor internalcircuit. absolutemaximumrating parameter value maxinputvoltage 8v operatingjunctiontemperature(t j ) 125 c ambienttemperature(t a ) 40 c~85 c packagethermalresistance: sot223:20 c/w storagetemperature(t s ) 40 c~150 c leadtemperature&time 260 c,10sec exceed these limits to damage to the device. exposure to absolute maximum rating conditions may affect device reliability. recommendedworkconditions parameter value inputvoltagerange max.6v ambienttemperature 40 c~85 c product classification BL8559clatr jb :product code xx:output voltage a:atypepin assignment ll:lot.no. b:fabcode yw:datecode product classification BL8559clbtr jb :product code xx:output voltage b:btypepin assignment ll:lot.no. b:fabcode yw:datecode
www.belling.com.cn 3 BL8559 electricalcharacteristics testconditions:c in =1uf,c out =4.7uf,t a =25 c,unlessotherwisespecified. symbol parameter conditions min typ max units v dd inputvoltage 6 v v out outputvoltage v out >1.5 v dd =setv out +1v 1mai out 10ma v out x0.98 v out v out x1.02 v v out <=1.5 v out 0.03 v out +0.03 i out (max.) note 6 maximumoutputcurrent v dd v out =1v 2.5 a v drop dropoutvoltage i out =1.5a 430 mv vout vin vout d d lineregulation i out =10ma 4vv dd 6v 0.05 0.2 %/v vout d loadregulation v dd =setv out +1v 1mai out 2.5a 15 mv is supplycurrent v dd =setv out +1v v out floating 26 50 ua vout t vout d d output voltage temperature coefficient i out =10ma 100 ppm/ c psrr ripplerejection f=100hz, ripple=0.5vp p, v dd =setv out +1v 60 db en outputnoise bw=10hz~100khz 44 uvrms note 6: 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.
www.belling.com.cn 4 BL8559 typicalperformancecharacteristics supplycurrentvs.inputvoltage ripplerejectionv s.frequency 0 5 10 15 20 25 30 35 40 3 4 5 6 7 8 vdd(v) is(ua) 0 10 20 30 40 50 60 70 100 1000 10000 frequency(hz) psrr(db) outputvoltagevs.inputvoltage dropoutvoltagevs .outputcurrent 3.20 3.22 3.24 3.26 3.28 3.30 3.32 3.34 3.36 3.38 3.40 3 4 5 6 7 8 vdd(v) vout(v) 0 100 200 300 400 500 600 700 800 900 0.0 0.5 1.0 1.5 2.0 2.5 iload(a) dropout(mv) outputvoltagevs.temperature 3.304 3.306 3.308 3.310 3.312 3.314 3.316 3.318 3.320 50 0 50 100 150 t(oc) vout(v)
www.belling.com.cn 5 BL8559 testwaveforms linetransientresponse c in =1uf,cout=4.7uf,v in =4?5v,v out =3v loadtransientresponse c in =1uf,cout=4.7uf,i out =10?1a,v out =3v ch1: input voltage ch2: output voltage i out =1a i out =10ma v in =4v v in =5v ch1: output current ch2: output voltage
www.belling.com.cn 6 BL8559 packageline package sot223 devicesperreel 2500pcs unit mm packagedimension
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