2 0 0ma low consumption linear regulator lr8064 description lr8064 series is a group of positive voltage output, low power consumption, low dropout voltage, three termi nal regulator. it can provide 20 0ma output current when input / output voltage differential drops to 43 0 mv vout= 2.8 v , the very l ow p ower consumption of bl8064 iq= 1 .0ua can greatly improve natural life of batteries. lr8064 can provide output value in the range of 1. 1 v~ 5 . 5 v in 0.1v steps. it also can customized on command. lr8064 includes high accuracy voltage reference, error amplifi er, current limit circuit and output driver module. lr8064 has well load transient response and good temperature characteristic, and it uses trimming technique to guarantee output voltage accuracy within 2%. features ? low power consumption: 1 .0ua typ. ? ma ximum output current: 20 0ma ? small dropout voltage 21 0mv@100ma (vout= 2.8 v) 43 0mv@2 0 0ma (vout= 2.8 v) ? input voltage range:1.5v~ 6 v ? output voltage range: 1. 1 v~ 5 . 5 v (customized on command in 0.1v steps) ? highly accurate: 2%( 1% customized ? output current limit a pplications ? battery powered equipment ? power management of mp3 pda dsc mouse ps2 games ? reference voltage source regulation after switching powe r typical application application hints note1: input capacitor (cin=1uf) is recommended in all applicati on circuit. ceramic capacitor is recommended. n o t e 2 : o u t p u t c a p a c i t o r ( c o u t = 1 u f ) i s recommended in all application to assure the stability of circuit. ceramic capacitor is recommended. electrical characteristics output voltage vs. output current (vout= 2.8 v) lr 8064 leshan radio company, ltd. 1/8
ordering information lr8064 1 2 3 4 5 code description 1 temperature&rohs: c: - 40~85 ? c ,pb free rohs std. 2 package type: b3:sot - 23 - 3 c3:sot - 89 - 3 h:to - 92 3 packing type: tr:tape &reel (standard) bg:bag (to - 92) 4 output voltage: e.g. 11 = 1.1 v 15=1.5v 55=5.5 v 5 voltage accuracy: 1= 1% blank(default)= 2% absolute maximum rating parameter value max input voltage 8 v operating juncti on temperature(tj) 125 ? c ambient temperature(ta) - 40 ? c - 85 ? c power dissipation sot - 23 - 3 250mw sot - 23 - 5 250mw sot - 89 - 3 500mw to - 92 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. pin configuration product classification lr8064 cb3tr marking n x yw n :product code x :output voltage yw dat e code product classification lr8064 cc3tr marking n xx ll b yw n :product code xx:output voltage ll :lot no. b:fab code yw :dat e code product classification lr8064 chbg marking n xx llbyw n :product code xx:output voltage ll :lot no. b:fab code yw :dat e code gnd ground pin vin supply voltage input vout output voltage leshan radio company, ltd. 2/8
recommende d work conditions item min recommended max. unit input voltage range 6 v ambient temperature - 40 85 ? c electrical characteristics (test conditions: cin=1uf, cout=1uf, ta=25 ? c, unless otherwise specified) symbol parameter conditions min type max u nits vin input voltage 6 v vout output voltage vout x0.98 vout x1.02 v iout(max.) maximum output current vin - vout=1v 2 0 0 ma dropout voltage input - output voltage differential iout=100ma vout ? 1. 8 v 6 0 0 1000 mv vout ? 1 .8v 300 6 00 vout vin vout ? ? ? line regulation iout= 1 0ma 1. 5 v vin 8v 0.2 0.3 %/v vout ? load regulation vin=set vout+1v 1ma iout 100ma 20 40 mv iq quiescent current vin=set vout+1v 1 .0 5 .0 ua vout t vout ? ? ? output vo ltage temperature coefficient iout=10ma 10 0 ppm/ ? c block diagram leshan radio company, ltd. 3/8 vout ? vout t vout ? ? ? ? vout vin vout ? ? ?
explanation lr8064 is a series of low dropout voltage and low power consumption three pins regulator. its application circuit is very simple, which only needs two o utside capacitors. it is composed of these modules: high accuracy voltage reference, current limit circuit, error amplifier, output driver and power transistor. current limit module can keep chip and power system away from danger w hen load current is mor e than 2 0 0ma. lr8064 uses trimming technique to assure the accuracy of output value within 2%, at the same time, temperature compensation is elaborately considered in this chip, which makes lr8064 s temperature coefficient within 10 0 ppm/ leshan radio company, ltd. 4/8
typical perfor mance characteristics 1 load regulation (vin= 4 v) 2 line regulation 3 dropout voltage 4 psrr 5 i q (vout= 2.8 v) 6 current limit leshan radio company, ltd. 5/8
7 line transient response 8 load transient response cin=cout=1uf iout= 10 ma vout= 2.8 v cin=cout=1uf vin=4 v vout= 2.8 v 9 start up 5v vv 4v vv vin vout 1ma 100ma output current output voltage vin vout leshan radio company, ltd. 6/8
package line package sot - 23 - 3 devices per reel 3 000 pcs unit mm package dimension package sot - 89 - 3 devices per reel 1 000 pcs unit mm package dimension : leshan radio company, ltd. 7/8
package to - 92 devices per bag 1 000 pcs unit mm packag e dimension : leshan radio company, ltd. 8/8
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