unisonic technologies co., M2950/2951 linear integrated circuit www.unisonic.com.tw 1 of 8 copyright ? 2011 unisonic technologies co., qw-r102-004.g 200ma low-dropout voltage regulator ? description the utc M2950/2951 is a monolithic integrated voltage regulator with low dropout voltage, and low quiescent current. it includes many features that suitable fo r different applications. ? features * fixed output versions, 2.5v, 3v, 3.3v, 3.6v and 5v, are available. * extremely low quiescent current and dropout voltage. * extremely tight load and line regulation. * current and thermal limiting. * very low temperature coefficient. * logic controlled shutdown and err flog available for 8 pin package. * output voltage programmable for m2951 ? ordering information ordering number lead free halogen free package packing M2950l-xx-d08-t M2950g-xx-d08-t dip-8 tube M2950l-xx-s08-r M2950g-x x-s08-r sop-8 tape reel M2950l-xx-t92-b M2950g-xx-t92-b to-92 tape box M2950l-xx-t92-k M2950g-xx-t92-k to-92 bulk m2951l-d08-t m2951g-d08-t dip-8 tube m2951l-s08-r m2951g-s08-r sop-8 tape reel note: pin assignment: i:v in o:v out g:gnd ? output voltage co de(for M2950) output voltage code 2.5v 25 3.0v 30 3.3v 33 3.6v 36 5.0v 50
M2950/2951 linear integrated circuit unisonic technologies co., ltd 2 of 8 www.unisonic.com.tw qw-r102-004.g ? pin configurations 2 1 3 output gnd input to-92 plastic package bottom view 1 2 3 4 8 7 6 5 input feedback 5v tap shutdown sense output utc m2951 gnd error sop-8 or dip-8 package for utc lp2951 1 2 3 4 8 7 6 5 input nc nc shutdown nc output utc M2950 gnd error sop-8 or dip-8 package for utc lp2950 utc M2950
M2950/2951 linear integrated circuit unisonic technologies co., ltd 3 of 8 www.unisonic.com.tw qw-r102-004.g ? block diagram for utc m2951
M2950/2951 linear integrated circuit unisonic technologies co., ltd 4 of 8 www.unisonic.com.tw qw-r102-004.g ? absolute maximum ratings (t j =25 c, unless otherwise specified.) parameter symbol ratings unit supply voltage v cc -0.3~+18 v feedback voltage v fb -1.5~+18 v shutdown voltage v shdn -0.3~+18 v comparator output voltage v co -0.3~+18 v operation junction temperature t j -40~+125 c storage temperature t stg -65~+150 c note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only an d functional device operat ion is not implied. ? thermal data parameter symbol rating unit to-92 160 sop-8 180 junction to ambient dip-8 ja 105 c/w to-92 83 junction to case sop-8 jc 45 c/w ? electrical characteristics (t j =25 c, v in =6v, i l =100 a, c l =1 f, unless otherwise specified.) for all versions: parameter symbol test condition min typ max unit t j =25 c (note 1) v out 0.98 v out v out 1.02 v output voltage v out -25 c Q t j Q +85 c(note 1) v out 0.98 v out v out 1.02 v output voltage v out 100 a Q i l 2 Q 00ma, t j Q t j(max) v out 0.98 v out v out 1.02 v output voltage temperature coefficient tcvo 20 100 ppm/ c line regulation v out 6v Q v in Q 18v 0.03 0.1 0.2 % load regulation v out 100 a Q i l Q =200 ma 0.04 0.1 0.2 % i l =100 a 50 80 150 dropout voltage v d i l =200ma (note 2) 380 450 600 mv i l =100 a 75 120 140 a ground current i g i l =200ma 8 12 22 ma dropout ground current v in =4.5v, i l =100 a 110 170 200 a current limit i limit v out =0v 160 200 300 ma c l =1 f 260 280 430 c l =200 f 160 output noise (10hz ~ 100khz) (bypass=0.01 f pins 7 to 1 (utc m2951)) en c l =3.3 f 100 v
M2950/2951 linear integrated circuit unisonic technologies co., ltd 5 of 8 www.unisonic.com.tw qw-r102-004.g ? electrical characteristics (cont.) for utc m2951 8-pin version only parameter symbol test condition min typ max unit error comparator output leakage current i o(leak) v oh =18v 1 a output low voltage v ol v in =v ou t 90% , i ol =400 a 250 mv upper v thu 3.2 threshold voltage lower v thl (note 3) 7.6 %vo hysteresis v hys (note 3) 15 mv shutdown input low v il regulator on 1.3 0.7 input logic voltage high v ih regulator off 2.0 v v shdn =2.4v 30 50 shutdown pin input current i shdn v shdn =18v 450 600 a regulator output current shutdown i dff v shdn R 2v, v in 18 Q v, v out =0v feedback pin tied to 5v tap. 3 10 a for utc m2951 8-pin version only parameter symbol test condition min typ max unit reference voltage v ref v oh =18v 1.22 1.235 1.25 v reference voltage v ref over temperature(note 4) 1.19 1.27 v feedback pin bias current i fb 20 40 na reference voltage temperature coefficient v ref(tc) 50 ppm/ c feedback bias current temperature coefficient i fb(tc) 0.1 na/ c note: 1. 2. 3. 4. additional conditions for 8-pin versions are feedba ck tied to 5v tap an output tied to output sense (v out =5v) and v shdn Q 0.8v. dropout voltage is defined as t he input to output differential at which the output voltage drops 100mv below its nominal value measured at 1v differential. comparator thresholds are expressed in te rms of percentage value of voltage output. v ref Q v out Q (v in -1v), 2.3v Q v in Q 30v, 100 a Q i l Q 250ma, t j Q t j(max)
M2950/2951 linear integrated circuit unisonic technologies co., ltd 6 of 8 www.unisonic.com.tw qw-r102-004.g ? application circuit 10 ampere low dropout regulator +v in fb v out gnd sd error utc m2951 8 5 7 1 4 3 current limit section +v in =v out +0.5v 0.05 ? 470 ? 680 ? 4.7m ? 20k ? 220 ? 0.033 f 47 ? r 1 r 2 4.7 f 100 f 1% 10k ? 2n3906 + v out 200m a v out =1.23v*(1+r 1 /r 2 ) for 5v output use internal resistors. wire pin 6 to 7 and wire pin 2 to +v out utc d65h2 utc M2950-2.5 utc M2950-3.0 utc M2950-3.3 utc M2950-3.6 utc M2950-5.0 v in v out
M2950/2951 linear integrated circuit unisonic technologies co., ltd 7 of 8 www.unisonic.com.tw qw-r102-004.g ? typical characteristics dropout characteristics input voltage(v) input current input voltage(v) 1 2 34 56 0 0 1 2 3 4 5 6 rl=50k rl=20 024681012 150 170 190 210 230 250 270 290 310 rl=20 dropout voltage temperature( ) ground pin current temperature( ) -75 -50 -25 0 25 50 75 100 125 150 0 50 100 300 400 500 600 i l =200ma i l =100 a 50 60 70 80 90 100 110 120 -75 -50 -25 0 25 50 75 100 125 150 v in =6v i l =100 a 130 ground pin current temperature( ) shutdown threshold voltage temperature( ) -75 -50 -25 0 25 50 75 100 125 150 -75 -50 -25 0 25 50 75 100 125 150 6 7 8 9 10 v in =6v i l =200ma 0.6 0.8 1.0 1.2 1.4 1.6 1.8
M2950/2951 linear integrated circuit unisonic technologies co., ltd 8 of 8 www.unisonic.com.tw qw-r102-004.g ? typical characteristics(cont.) short circuit current temperature( ) dropout voltage output current(ma) -75 -50 -25 0 25 50 75 100 125 150 230 240 250 260 270 280 290 300 50 100 150 200 0 100 200 300 400 500 utc assumes no respon sibility for equipment failures that result fr om using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior writ ten consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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