www.belling.com.cn 1 dual 500ma high psrr linear regulator b l8569 description BL8569 dual,low-noise,low-dropout regulator delivers at least 500ma of continuous output current. the output voltage for each regulator is set independently by trimming.voltages are selectable in 100mv steps within a range of 1.2v to 4.5v. the BL8569 includes two independent logic-controlled shutdown inputs and allows the output of each regulator to be turned of independently. BL8569 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. BL8569 has 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%. BL8569 is available in sot-23-6 package which is lead(pb)- free features two low dropout voltage regulators 500ma output current for each ldo low output noise (50uvrms) low dropout voltage:0.08v@150ma(typ) standby mode: 0.1ua high ripple rijection: 72db@1000hz (typ) excellent line regulation: 0.05%/v independent shutdown controls 1.2v to 4.5v factory-preset output output current limit highly accurate: 2% applications cellular phones cordless phones and radio communication equipment battery powered equipment notebook and hand-hold equipment wireless lan gps receivers typical application application hints note: input capacitor (cin=1uf) and output capacitor (cout=1uf/3.3uf) are recommended in all application circuit. electrical characteristics psrr 0 10 20 30 40 50 60 70 80 0.01 0.1 1 10 100 1000 freq(khz) psrr(db) vout=3.3v
www.belling.com.cn 2 BL8569 ordering information BL8569 1 2 3 4 5 code description 1 temperature&rohs: c:-40~85 c ,pb free rohs std. 2 package type: b6:sot-23-6 3 packing type: tr:tape&reel (standard) 4 ch1 output voltage: e.g. 15=1.5v 28=2.8v 45=4.5v 5 ch2 output voltage: e.g. 15=1.5v 28=2.8v 45=4.5v marking descripton l : product code x: output voltage code vout1 vout2 code vout1 vout2 b 1.5v 2.8v m 2.8v 1.8v c 1.5v 3.0v o 2.8v 2.8v d 1.5v 3.3v p 2.8v 3.0v e 1.5v 4.0v q 3.0v 2.5v g 1.8v 2.5v r 3.0v 3.0v h 1.8v 2.8v s 3.0v 3.3v i 1.8v 3.0v t 3.3v 1.8v j 1.8v 3.3v u 3.3v 3.3v 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 26, a stands for week 27, z stands for week 52. pin configuration product classification BL8569cb6tr marking lxzz l :product code x:output voltage zz:data code vss ground pin vin supply voltage input vout1 ch1 output voltage ce1 chip enable1 ce2 chip enable2 vout2 ch2 output voltage absolute maximum rating parameter value max input voltage 8v operating junction temperature(tj) 125 c ambient temperature(ta) -40 c -85 c power dissipation sot-23-6 250mw storage temperature(ts) -40 c -150 c lead temperature & time 260 c,10s note: exceed these limits to damage to the device. exposure to absolute maximum rating conditions may affect device reliability. recommended work conditions parameter value input voltage range max. 6v ambient temperature -40 c C85 c
www.belling.com.cn 3 BL8569 electrical characteristics test conditions: cin=1uf,cout=3.3uf,ta=25 c, unless otherwise specified. BL8569, for arbitrary output voltage symbol parameter conditions min typ max units vin input voltage 1.2 6 v vout output voltage vin=set vout+1v 1ma iout 30ma vout x0.98 vout1 vout x1.02 v iout (max.) maximun output current 600 ma vdrop dropout voltage,vout 2.8v iout=50ma 25 40 mv iout=100ma 50 75 mv iout=150ma 75 115 mv iout=400ma 220 280 mv vout vin vout d d line regulation iout=40ma 2.8v vin 6v 0.05 0.1 %/v vout d / iout d load regulation vin=set vout+1v 1ma iout 500ma 100 150 mv iss supply current vin=set vout+1v 30 50 ua istandby supply current (standby) vin=set vout+1v vce=0v 0.1 1.0 ua vout t vout d d output voltage temperature coefficiency vin=set vout+1v iout=30ma 50 ppm/ c psrr ripple rejection f=1000hz, ripple=0.5vp-p vin=set vout+1v 72 db ilim short current limit vout=0v 500 ma vceh ce input voltage h 1.4 v vcel ce input voltage l 0.25 v en output noise bw=10hz~100khz 50 uvrms
www.belling.com.cn 4 BL8569 block diagram explanation BL8569 series are highly accurate ,dual,low noise,c mos low dropout voltage regulators. the output voltage for each regulator is set indepe ndently by trimming. voltages are selectable in 100mv steps within a range of 1.2v to 4.5v . it als o can be customized on command. BL8569 includes high accuracy voltage reference, er ror amplifier, current limit circuit and output driver module. BL8569 has excellent load and line transient respon se and good temperature characteristics, which can assure the stability of chip and power sy stem. and it uses trimming technique to guarantee output voltage accuracy within 2%.
www.belling.com.cn 5 BL8569 typical performance characteristics 1) output voltage vs. output current (with output short protection) 2) output voltage vs. input voltage current limit vs. vout 0 0.5 1 1.5 2 2.5 3 3.5 0 200 400 600 800 1000 1200 1400 1600 iload(ma) vout(v) line regulation 3.3105 3.311 3.3115 3.312 3.3125 3.313 3 3.5 4 4.5 5 5.5 6 vin(v) vout(v) iout=14(ma) 3) dropout voltage vs. output current 4) ripple rej ection vs. frequency dropout & iout 0 20 40 60 80 100 120 140 160 180 0 50 100 150 200 250 300 350 iout(ma) dropout(mv) vout=3.3v psrr 0 10 20 30 40 50 60 70 80 0.01 0.1 1 10 100 1000 freq(khz) psrr(db) vout=3.3v
www.belling.com.cn 6 BL8569 5) line transient response cin=cout=1uf iout=25ma vout=3 .3v 6) load transient response cin=cout=1uf vin=4.5v vout=3.3v 7) start up from en 8) shut down from en 4v 5v v in vout vin vout 4v 5v 1ma output current output voltage 1ma 50ma o utput o utput en en 50ma output current output voltage
www.belling.com.cn 7 BL8569 package line package sot-23-6 devices per reel 3000pcs unit mm package dimension
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