1 elm1085xg bipolar 3a ldo voltage regulator 5 - parameter symbol limit unit power supply voltage vcc 7 v power dissipation pd internally limited w thermal resistance junction to case rjc 5 c/w thermal resistance junction to ambient rja 60 (to-263-2) c/w 60 (to-263-3) 70 (to-252) operating junction temperature top 0 to +125 c storage temperature tstg -40 to +150 c lead temperature(soldering 10s.) tlead 260 c elm1085xg is positive and bipolar ldo three terminal voltage regulator with 3a output current capability. this series includes thermal shutdown protection and short circuit current limiter. elm1085 series is available in ? xed version (elm1085xg-3.3 vout:3.3v) and adjustable version (elm1085xg: vout=vref3.3 (1+r2/ r1)+iadjr2 max.5.55v). ? output voltage range (fixed) : 3.3v (adj.) : 1.27v to 5.55v ? line regulation : typ.0.5% ? load regulation : typ.0.5% ? ldo voltage : 1.3v typical at up to 3a ? package : to-252, to-263-2, to-263-3 ? scsi terminator ? linear regulator ? battery chargers ? micro-controller elm1085xg-33-s, elm1085xg-s symbol a package d : to-252 s : to-263-2 s3: to-263-3 b product version g c, d output voltage 33: vout=3.3v e taping direction s : ref. p401, p402, p403 elm1085 x g - 3 3 - s a b c d e elm1085 x g - s a b e general description features application maximum absolute ratings selection guide ? adj. version ? fixed version free datasheet http://
2 vout=3.3v ? fixed type typical application ? adjustable type vout=vref (1+r2/r1)+iadjr2 * we recommend to use min. 10f tantalum condenser. pin configuration to-263-2 (top view) pin no. pin name 1 adj/gnd 2/tab vout 3vin to-263-3 (top view) pin no. pin name 1 adj/gnd 2/tab vout 3vin to-252 (top view) pin no. pin name 1 adj/gnd 2/tab vout 3vin * cin needed if device is far from filter capacitors. * cout required for stability. * we recommend to use min. 10f tantalum condenser. elm1085xg bipolar 3a ldo voltage regulator
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! * " # 5 - free datasheet http://
3 elm1085xg bipolar 3a ldo voltage regulator parameter symbol condition min. typ. max. unit reference voltage vref iout=10ma, vin=5v 1.23 1.25 1.27 v line regulation vout/vin iout=10ma, vin=(vout+1.5v) to 7v 0.5 2.0 % load regulation vout/iout iout=10ma to 3a, vin-vout=3v 0.5 2.5 % dropout voltage vdif iout=3a, vref=1% 1.30 1.45 v current limit ilim vin-vout=2v 4 5 a min.load current il (min) 1.5v(vin-vout)5.75v 10 ma adjust pin current iadj 55 100 a rms output noise vn vo u t 0.003% mv ripple rejection ratio rr f=120hz, vin=5v, iout=3a, cout=22f 60 72 db top=25c electrical characteristics vout=adjustable parameter symbol condition min. typ. max. unit output voltage vout iout=10ma, vin=5v 3.234 3.300 3.367 v line regulation vout/vin iout=10ma, vin=4.8v to 7v 0.5 2.0 % load regulation vout/iout iout=10ma to 3a, vin-vout=3v 0.5 2.5 % dropout voltage vdif iout=3a, vref=1% 1.3 1.5 v current limit ilim vin-vout=2v 4 5 a min.load current il (min) 1.5v(vin-vout)5.75v 10 ma rms output noise vn vo u t 0.003% mv ripple rejection ratio rr f=120hz, vin=5v, iout=3a, cout=22f 60 72 db top=25c vout=3.3v (elm1085xg-33) marking 5 - + , ( , % , & , - , . , , ) , / 0 " 1
! ' 2 to-252 ? to-252 package : ELM1085DG-33 (fixed type) ' , 2 , + , ( , % , & , - , . , 0 " 1
! ? to-252 package : elm1085dg (adjustable type) to-252 l 1085 d g a, b c to k l 1085 d g a to i : ldo : product no.code : pkg type (to-252) : pb-free package mark : production code : ldo : product no.code : pkg type (to-252) : pb-free package mark : output voltage (3,3=3.3v ? xed) : production code free datasheet http://
4 5 - elm1085xg bipolar 3a ldo voltage regulator + , ( , % , & , - , . , , ) , / 0 " 1
1 ' 2 to-263-2 0 " 1
1 + , ( , % , & , - , . , , ) , / ' 2 to-263-3 ? to-263-2 package : elm1085sg-33 (fixed type) ? to-263-3 package : elm1085sg-33 (fixed type) ? to-263-2 package : elm1085sg (adjustable type) ? to-263-3 package : elm1085sg (adjustable type)
1 ' , 2 , + , ( , % , & , - , . , 0 " 1 to-263-2 to-263-3 0 " 1
1 ' , 2 , + , ( , % , & , - , . , : ldo : product no.code : pkg type (s : to-263-2, s3 : to-263-3) : pb-free package mark : output voltage (3,3=3.3v ? xed) : production code : ldo : product no.code : pkg type (s : to-263-2, s3 : to-263-3) : pb-free package mark : production code l 1085 s(s3) g a, b c to k l 1085 s(s3) g a to i free datasheet http://
5 t j =125c t j =25c t j =-40c dropout voltage vs. output current dropout voltage(v) output current(a) 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.5 0.4 0.2 0 3.0 2.5 2.0 1.5 1.0 0.5 0 temperature(c) 10 9 8 7 6 5 4 3 2 1 150 100 50 -50 0 short-circuit current vs.temperature v in -v out(short circuit) =5v short-circuit current(a) v in -v out(short circuit) =3.3v percent change in output voltage vs.temperature output voltage change(%) temperature( c) 2 1.5 1 0.5 0 -0.5 -1 -1.5 -2 150 125 100 75 50 25 0 -25 -50 adjust pin current vs.temperature adjust pin current ( a) temperature(c) 100 90 80 70 60 50 40 30 20 10 0 -50 -25 0 25 50 75 100 125 150 i out =3a v ripple(p-p) =1v v in -v out =3v 90 80 70 60 50 40 30 20 10 0 100k 10k 1k 100 10 ripple rejection vs. frequency ripple rejection(db) frequency(hz) maximum power dissipation* power(w) case temperature( c) 20 18 16 14 12 10 8 6 4 2 0 150 130 110 90 70 50 *as limited by maximum junction temperature ::? :?::? ::? :?::? ::? :?::? :?::? :::?:?:?:?::?:?:?:? : : : :?::? typical characteristics :?::? 5 - elm1085xg bipolar 3a ldo voltage regulator free datasheet http://
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