unisonic technologies co., ltd ut71xx cmos ic www.unisonic.com.tw 1 of 9 copyright ? 2010 unisonic technologies co., ltd qw-r502-017.ha three-terminal low power voltage regulators ? description the utc ut71xx series is a set of three- terminal low power voltage regulators implemented in cmos technology. they are available with several fixed output voltages ranging from 1.5v~7.0v. the advantage of cmos technology is low voltage dropout and low quiescent current. although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain variable voltages and currents. ? features * accurate output voltage range ( 2.4%) * low power consumption * low voltage dropout * low temperature coefficient * wide operating voltage (24v max.) ? ordering information ordering number pin assignment lead free halogen free package 1 2 3 packing ut71xxl-ab3-c-r ut71xxg-ab3-c-r sot-89 g i o tape reel UT71XXL-T92-B-B ut71xxg-t92-b-b to-92 o g i tape box ut71xxl-t92-b-k ut71xxg-t92-b-k to-92 o g i bulk ut71xxl-t92-c-b ut71xxg-t92-c-b to-92 g i o tape box ut71xxl-t92-c-k ut71xxg-t92-c-k to-92 g i o bulk note: pin assignment: i: v in o: v out g: ground
ut71xx cmos ic unisonic technologies co., ltd 2 of 9 www.unisonic.com.tw qw-r502-017.ha ? marking information package voltage code marking sot-89 123 xx ut71xx date code l: lead free g: halogen free voltage code to-92 15:1.5v 18:1.8v 20:2.0v 25:2.5v 27:2.7v 28:2.8v 30:3.0v 33:3.3v 36:3.6v 44:4.4v 45:4.5v 50:5.0v 70:7.0v 123 utc ut71xx 1 voltage code date code pin code l: lead free g: halogen free
ut71xx cmos ic unisonic technologies co., ltd 3 of 9 www.unisonic.com.tw qw-r502-017.ha ? block diagram
ut71xx cmos ic unisonic technologies co., ltd 4 of 9 www.unisonic.com.tw qw-r502-017.ha ? absolute maximum ratings parameter symbol ratings unit supply voltage v cc -0.3 ~ +28 v sot-89 200 power dissipation to-92 p d 200 mw operating temperature t opr 0 ~ +70 storage temperature t stg -40 ~ +125 note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? electrical charactristics (ta=25 ) for ut7115 parameter symbol test conditions min typ max unit output voltage v out v in =3.5v, i out =10ma 1.464 1.5 1.536 v input voltage v in 24 v load regulation v out v in =3.5v,1ma i out 20ma 60 100 mv voltage dropout v d i out =1ma 60 mv output current i out v in =3.5v 20 30 ma current consumption i ss v in =3.5v, no load 4 6.0 a line regulation v out v in v out 2.5v v in 24v, i out =0.5ma 0.2 %/v temperature coefficient v out ta v in =3.5v, i out =10ma 0c ut71xx cmos ic unisonic technologies co., ltd 5 of 9 www.unisonic.com.tw qw-r502-017.ha ? electrical charactristics(cont.) for ut7125 parameter symbol test conditions min typ max unit output voltage v out v in =4.5v, i out =10ma 2.440 2.5 2.560 v input voltage v in 24 v load regulation v out v in =4.5v,1ma i out 20ma 60 100 mv voltage dropout v d i out =1ma 60 mv output current i out v in =4.5v 20 30 ma current consumption i ss v in =4.5v, no load 4 6.0 a line regulation v out v in v out 3.5v v in 24v, i out =0.5ma 0.2 %/v temperature coefficient v out ta v in =4.5v, i out =10ma 0c ut71xx cmos ic unisonic technologies co., ltd 6 of 9 www.unisonic.com.tw qw-r502-017.ha ? electrical charactristics(cont.) for ut7133 parameter symbol test conditions min typ max unit output voltage v out v in =5.5v, i out =10ma 3.220 3.3 3.379 v input voltage v in 24 v load regulation v out v in =5.5v, 1ma i out 30ma 60 100 mv voltage dropout v d i out =1ma 60 mv output current i out v in =5.5v 20 30 ma current consumption i ss v in =5.5v, no load 4 6.0 a line regulation v out v in v out 4.5v v in 24v, i out =1ma 0.2 %/v temperature coefficient v out ta v in =5.5v, i out =10ma 0c ut71xx cmos ic unisonic technologies co., ltd 7 of 9 www.unisonic.com.tw qw-r502-017.ha ? electrical charactristics(cont.) for ut7150 parameter symbol test conditions min typ max unit output voltage v out v in =7v, i out =10ma 4.88 5.0 5.12 v input voltage v in 24 v load regulation v out v in =7v, 1ma i out 30ma 60 100 mv voltage dropout v d i out =1ma 60 mv output current i out v in =7v 20 30 ma current consumption i ss v in =7v, no load 5 9.0 a line regulation v out v in v out 6v v in 24v, i out =1ma 0.2 %/v temperature coefficient v out ta v in =7v, i out =10ma 0c ut71xx cmos ic unisonic technologies co., ltd 8 of 9 www.unisonic.com.tw qw-r502-017.ha ? typical application circuit the basic circuits using the utc ut71xx series high output current pos itive voltage regulator short-circuit protection for tr1 ut71xx v in v out v in v out c1 10 + c2 10 + single point gnd common common tr1 r gnd rs utc circuit for increasing output voltage
ut71xx cmos ic unisonic technologies co., ltd 9 of 9 www.unisonic.com.tw qw-r502-017.ha ? typical applicat ion circuit(cont.) circuit for increasing output voltage ut71xx v in v out v in v out c1 10 + c2 10 + single point gnd common common gnd iss di vxx r1 v out =vxx +v di utc constant current regulator dual supply ut 71 xx v in v out v in c1 10 c3 10 + common gnd r ic1 v out 1 v out 2 ut71xx v in v out gnd ic2 c 2 10 + + common utc utc utc assumes no responsibility for equipment failures that result from 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 written 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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