www. belling .com . cn 1 800ma ultra - low vin low dropout voltage linear regulator b l8074 general description bl8074 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 1.2 v to 5.0 v. it also can be customized on command. bl8074 series have excellent load and line transient response and good temperature characteristics, which can assure the stability of chip and p ower system. and it uses trimming technique to guarantee output voltage accuracy within 2%. bl8074 series are available in sot - 89 - 3 package, which is lead ( pb) - free. features ? low quiescent curr ent: 100 ua at 5v ? high psrr: 65 db ran ge to 1khz ? low output noise: 44uvrms ? low dropout: 20 0mv @iout=0.8 a , vout=3.3v ? maximum output current: 800m a ? highly accurate: 2% ? low esr c eramic c apacitor c ompatible applications ? reference voltage source ? battery powered equipment ? pc peripherals ? wireless devices ? instrumentation typical application block diagram bl8 07 4 v d d v o u t g n d c i n v d d c o u t l c 1 4 5 7 v o u t
www. b elling .com . cn 2 b l8074 ordering information bl8074 1 2 3 4 5 code description 1 temperature&rohs: c: - 40~85 ? c ,pb free rohs std. 2 package type: c3:sot - 89 - 3 3 packing type: tr:tape&reel (standard) 4 output voltage: e.g. 12=1.2v 18=1.8v 25=2.5v 33=3.3v 50=5.0v 5 voltage accuracy: 1= 1%(customized) blank(default)= 2% marking descripton output voltage code x vout code vout code vout code 1.2v 2 2.9v 4.3v 1. 3 v 3 3.0v 4.4v 1. 4 v 4 3.1v 4.5v 1.5v 5 3.2v 4.6v 1. 8 v 8 3.3v 4.7v 2. 0 v 3.5v 4.9v 2. 2 v 3.6v 5.0v 2. 3 v 3.7v 5.1v 2. 4 v 3.8v 5.2v 2.5v 3.9v 5.3v 2.6v 4.0v 5.4v 2.7v 4.1v 5.5v 2.8v 4.2v xx: output voltage, e.g. 18=1.8v 33=3.3v y: the year of manufacturing, 1 stands for year 20 11 , 2 stands for year 201 2 , and 8 stands for year 201 8 . w: the week of manufacturing. a stands for week 1,z stands for week 26, stands for week 27, stands for week 52. pin configuration product classification bl8074 c c3 tr jbxx llbyw jb :product code xx:output voltage ll:lot no. b:fab code yw:date code vdd supply voltage input gnd ground pin v out output voltage absolute maximum rating parameter value max input voltage 8v max operating junction temperature (t j ) 1 4 5 ? c ambient temperature (t a ) - 40 ? c ~85 ? c power dissipation sot - 89 - 3 500mw storage temperature (t s ) - 40 ? c ~150 ? c lead temperature & time 260 ? c , 10 sec recommended work conditions parameter value input voltage range max. 6v ambient temperature - 40 ? c ~85 ? c operating junction temperature (t j ) 1 2 5 ? c 3 0 4 1 5 2 6 3 7 4 8 5 9 6 0 ? 7 1 8 2 9 3 0 4 1 5 2 a z
www. b elling .com . cn 3 b l8074 electrical characteristics test conditions: c in = 4.7 uf,c out = 4.7 uf,t a =25 ? c, unless otherwise specified. symbol parameter conditions min typ max units v dd input voltage 1. 5* 6 v v out output voltage v out >1.5 v dd =set v 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.) ** maximum output current v dd - v out =1v 0.8 a v drop dropout voltage v out =3.3v, i out =1a 30 0 50 0 mv line regulation i out =10ma , 4vv dd 6v 0.05 0.2 %/v load regulation v dd =set v out +1v 1mai out 2.5a 30 60 mv is supply current v dd =set v out +1v , v out floating 100 1 50 ua output voltage temperature coefficient i out =10ma 100 ppm/ ? c psrr ripple rejection f=100hz, ripple=0.5vp - p, v dd =set v out +1v 65 db en output noise bw=10hz~100khz 44 uvrms note: *iout=350ma@vin=1.5v , vout=1.2v ** 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. typical performance characteristics 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 0.0 0.2 0.4 0.6 0.8 vout(v) iout(a) load regulation (vout=3.3v) vin=5.0v vin=4.3v vin=4.0v 0.1 0.3 0.5 0.7 0.9 1.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 iout(a) vin - vout (v) soa (vout=3.3v) 25 60 - 20 vout vin vout ? ? ? vout ? vout t vout ? ? ?
www. b elling .com . cn 4 b l8074 load transient response (vin=5v,vout=3.3v) line transient response(vin=5v,vout=3.3v) cin=1uf,cout =1uf,iout=1ma - 100ma cin=1uf,cout=1uf,iout=10ma,vin=4.3v - 5.3v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 1 2 3 4 5 6 vout(v) vin(v) line regulation vout=3.3v vout=1.2v 0 50 100 150 200 250 0 1 2 3 4 5 6 iq(ua) vin(v) iq vout=3.3v vout=1.2v 0 100 200 300 400 500 600 0 0.2 0.4 0.6 0.8 dropout(mv) iout(a) dropout voltage vout=3.3v vout=1.2v 2.0 2.5 3.0 3.5 4.0 (50) 0 50 100 150 vout(v) temperature( ) vout vs. temperature
www. b elling .com . cn 5 b l8074 package line package sot - 89 - 3 devices per reel 1 000 pcs unit mm package dimension :
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