www.belling.com.cn 1 500ma high psrr, low dropout voltage linear regulat or rev1.0-revised dec 2007 BL8565 description BL8565 series is a group of positive voltage output, low noise,low power consumption, low dropout voltage regulator. BL8565 can provide output value in the range of 1.5v~4.5v every 0.1v step. it also can be customized on command. BL8565 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module with discharge capability. BL8565 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%. BL8565 is available in sot-89-3 packages which is lead free. features low power consumption: 20ua typ. low output noise (47uvrms) low dropout voltage: 0.16v@300ma (typ.) high ripple rejection: 73db@100hz (typ.) low temperature coefficient: 100ppm/ c excellent line regulation: 0.05%/v build-in chip enable and discharge circuit output voltage range: 1.5v~4.5v (customized on command every 0.1v step) highly accurate: 2% output current limit applications power management for computer,mother board, graphic card lcd monitor and lcd tv dvd decode board reference voltage source regulation after switching power typical application note: input capacitor (cin=1uf) and output capacitor (cout=3.3uf/4.7uf) are recommended in all application circuit. electrical characteristics load regulation (vin=4.5v) 3 3.05 3.1 3.15 3.2 3.25 3.3 3.35 0 50 100 150 200 250 300 350 iout(ma) vout(v) BL8565
www.belling.com.cn 2 BL8565 ordering information BL8565 1 2 3 4 5 code description 1 temperature&rohs: c:-40~85 c ,pb free rohs std. 2 package type: c3a:sot-89-3(a) c3b:sot-89-3(b) c3c:sot-89-3(c) 3 packing type: tr:tape&reel (standard) 4 output voltage: e.g. 15=1.5v 18=1.8v 45=4.5v 5 voltage accuracy: blank(default)= 2% marking descripton ad : product code xx: output voltage vout code vout code vout code 2.5v 25 3.8v 38 2.6v 26 3.9v 39 2.7v 27 4.0v 40 1.5v 15 2.8v 28 4.1v 41 1.6v 16 2.9v 29 4.2v 42 1.7v 17 3.0v 30 4.3v 43 1.8v 18 3.1v 31 4.4v 44 1.9v 19 3.2v 32 4.5v 45 2.0v 20 3.3v 33 2.1v 21 3.4v 34 2.2v 22 3.5v 35 2.3v 23 3.6v 36 2.4v 24 3.7v 37 yy:lot no. 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 BL8565cc3atr marking adxxa yybzz ad:product code xx: output voltage a:package yy:lot no. b:fab code zz:data code product classification BL8565cc3btr marking adxxb yybzz ad:product code xx: output voltage b:package yy:lot no. b:fab code zz:data code product classification BL8565cc3ctr marking adxxc yybzz ad:product code xx: output voltage c:package yy:lot no. b:fab code zz:data code vss ground pin vin supply voltage input vout output voltage
www.belling.com.cn 3 BL8565 absolute maximum rating parameter value max input voltage 8v operating junction temperature(tj) 125 c output current 500ma ambient temperature(ta) -40 c C85 c power dissipation sot-89-3 500mw 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 item min recommended max. unit input voltage range 6 v ambient temperature -40 85 c electrical characteristics test conditions: cin=1uf,cout=3.3uf,ta=25 c, unless otherwise specified. BL8565, for arbitrary output voltage symbol parameter conditions min typ max units vin input voltage 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 vin-vout=1v 500 ma vdrop 1 dropout voltage,vout 2.8v iout=100ma 50 80 mv iout=300ma 160 220 mv vout vin vout d d line regulation iout=40ma 2.8v vin 6v 0.05 0.2 %/v vout d / iout d load regulation vin=set vout+1v 1ma iout 300ma 30 50 mv iss supply current vin=set vout+1v 20 30 ua istandby supply current (srandby) vin=set vout+1v vce=gnd 0.1 1.0 ua vout t vout d d output voltage temperature coefficiency iout=30ma 100 ppm/ c
www.belling.com.cn 4 BL8565 psrr ripple rejection f=100hz, ripple=0.5vp-p vin=set vout+1v 70 db ilim short current limit vout=0v 1000 ma rpd ce pull down resistance 2.0 5.0 10.0 m w en output noise bw=10hz~100khz 47 uvrms note: vdrop=vin1-(vout2*0.98) vout2 is the output voltage whe n vin=vout1+1.0v and iout=500ma. vin1 is the input voltage at which the output volta ge becomes 98% of vout1 after gradually decreasing the input voltage. block diagram explanation BL8565 series is a group of positive voltage output , low noise, low power consumption, low dropout voltage regulator. BL8565 can provide output value in the range of 1.5 v~4.5v every 0.1v step. it also can be customized on command. BL8565 includes high accuracy voltage reference, er ror amplifier, current limit circuit and output driver module. BL8565 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 BL8565 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 0 500 1000 1500 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 BL8565 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 4v 5v vin vout vin vout 4v 5v 1ma output current output voltage 1ma 50ma 50ma output current output voltage
www.belling.com.cn 7 BL8565 package line package sot-89-3 devices per reel 1000pcs unit mm package dimension
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