unisonic technologies co., ltd 78nxx linear integrated circuit www.unisonic.com.tw 1 of 6 copyright ? 2011 unisonic technologies co., ltd qw-r101-033.a 3-terminal 300ma positive voltage regulator ? description the utc 78nxx family is monolithic fixed voltage regulator integrated circuit. they are suitabl e for applications requiring supply current up to 300ma. ? features * output current up to 300ma * fixed output voltage of 5v, 6v, 8v * thermal overload shutdown protection * short circuit current limiting sot-89 1 ? ordering information ordering number pin assignment lead free halogen free package 1 2 3 packing 78nxxl-ab3-r 78nxxg-ab3-r sot-89 o g i tape reel note: 1. xx: output voltage, refer to marki ng information ? marking information package voltage code marking sot-89 05:5.0v 06:6.0v 08:8.0v
78nxx linear integrated circuit unisonic technologies co., ltd 2 of 6 www.unisonic.com.tw ver.a ? absolute maximum rating (operating temperature range applies un less otherwise specified.) (note 1) parameter symbol ratings unit input voltage v in 30 v output current i out 300 ma power dissipation p d 500 mw operating temperat ure (note 2) t opr -40~+150 c storage temperature t stg -55~+150 c note: 1. 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. 2. it is guarantee by design, not 100% be tested. ? electrical characteristics (0 c 78nxx linear integrated circuit unisonic technologies co., ltd 3 of 6 www.unisonic.com.tw ver.a ? electrical characteristics (cont.) for utc78n08 (v in =14v,i out =40ma) parameter symbol test conditions min typ max unit t j =25 c 7.68 8.0 8.32 v output voltage v out 10.5v Q v in Q v max , i out =1ma - 300ma 7.60 8.40 v (note 2) t j =25 c,i out =1ma - 300ma 15 80 mv load regulation v out t j =25 c,i out =1ma - 40ma 8.0 40 mv 10.5v Q v in Q 23v,tj=25 c 10 175 mv line regulation v out 11v Q v in Q 23v,tj=25 c 8 125 mv quiescent current i q 2.0 5.5 ma 11v Q v in Q 23v 1.5 ma quiescent current change i q 1ma Q v in Q 40ma 0.1 ma output noise voltage en 10hz Q f Q 100khz 49 uv temperature coefficient of v out vo/ ti out =5ma 0.75 mv/ c ripple rejection rr 11v Q v in Q 23v,f=120hz,t j =25 c 39 70 db dropout voltage v d t j =25 c 1.7 v notes: 1. the maximum steady state usabl e output current are depen dent on input voltage, heat sinking, lead length of the package and copper pattern of pcb. the data above represent pulse test conditions with junction temperatures specified at the initiation of test. 2. power dissipation<0.5w
78nxx linear integrated circuit unisonic technologies co., ltd 4 of 6 www.unisonic.com.tw ver.a ? block circuit 1 3 2 gnd output input r13 r17 r9 z2 t12 t14 r19 r18 r12 r11 r10 r8 t8 t9 t13 t10 r14 t11 t5 t6 r5 t4 z1 r15 t15 r16 r1 r2 r4 c1 r6 t7 t3 t1 t2 r3 r7 ? typical application circuit note 1. to specify an output voltage, substitute voltage value for "xx". 2. bypass capacitors are recommended for optimum stability and tr ansient response and should be located as close as possible to the regulators.
78nxx linear integrated circuit unisonic technologies co., ltd 5 of 6 www.unisonic.com.tw ver.a ? typical characteristics
78nxx linear integrated circuit unisonic technologies co., ltd 6 of 6 www.unisonic.com.tw ver.a ? typical characteristics(cont.) 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.
|
