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16188 12106 XN4322 C3950 090814 DM700 1337M1 01000
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  Datasheet File OCR Text:
  me2108 ? ver 0 8 me2108 ? dc/dc ?? me2108 ? dc/dc ?? cmos ??? pfm dc/dc ?? ?? ? ???? ??? ???? 2.0v~7.0v 0.1v ???? 180khz( ? ) ??? me2108xxx dc/dc ??? , ???????? ? ce ? me2108cxx ? ?????? ????? ? ? ? ? ?????? ??? ? ? ? ? 0.9v~8v ? ? vin=3.0v vout=5.0v ? iout=400ma ? ? 2.0v~7.0v( 0.1v) ? ??? 2.5% ? ??? 0.9v( ? 1ma ?) ? ?? 180khz( ?) ? ??? 85% ? ?? sot23 sot89 ?? ? ? ???? ? ? ?? vcr pda ???T??? ?? ? ??????? ??? ? ? ? ce vdd fb ? m3 sot23-3 me2108a xx p sot 89-3 no no no ? m3 sot23-3 me2108b xx p sot 89-3 no no no m5 sot23-5 me2108c xx p sot 89-5 yes no no ?? m5 sot23-5 me2108d xx p sot 89-5 yes no no ? me2108f m5 sot 23-5 no yes yes ? 1(8) v?mw`r?y?b? www.gofotech.com
me2108 ? ver 08 ? 12 3 sot23-3 sot23-5 123 4 5 123 4 5 sot89-5 ? me2108axx ? sot23-3 sot89-3 1 1 vss ? 3 2 vout ? 2 3 lx ME2108BXX ? sot23-3 sot89-3 1 1 vss ? 3 2 vout ? 2 3 ext me2108cxx ? sot23-5 sot89-5 4 5 vss ? 2 2 vout ? 5 4 lx 1 3 ce ?? 3 1 nc me2108dxx ? sot23-5 sot89-5 4 5 vss ? 2 2 vout ? 5 4 ext 1 3 ce ?? 3 1 nc me2108fxx ? sot23-5 1 fb 2 vdd ? 3 nc 4 vss ? 5 ext 2(8) n~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? www.gofotech.com
me2108 ? ver 08 ?? ? ? v in ?? v in 10 v lx ?? v lx 10 v ext ?? v ext -0.3~vout+0 .3 v ce ?? v ce -0.3~vout+0 .3 v lx i lx 600 ma ext i ext 30 ma vdd ?? v dd 10 v sot23 pd 300 mw sot89 pd 500 mw ? t opr -25~+85 ? t stg -40~+125 ??? t solder 260, 10s 3(8) n~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? www.gofotech.com
me2108 ? ver 08 ? v in =vout*0.6 v ss =0v i out =10ma t opt =25 ?? me2108axx/cxx fosc=180khz ? v out ? vout*0.975 vout vout*1.025 v v start ? i out =1ma v in 0 2v 0.8 0.9 v v hold ?? i out =1ma v in 2 0v 0.45 v i dd1 1 ?? v out=vout*0.95 80 a i dd2 2 vout=vout+0.5v 10 a i lx ??? v lx =0.4v, vout=vout*0.9 5 360 ma i lxleak ?? vout=v lx =6v 0.5 a f osc ? vout=set vout*0.95 180 khz maxdty ?? on(v lx l )side 84 % 85 % ME2108BXX/dxx fosc=180khz ? v out ? vout*0.975 vout vout*1.025 v v start ? i out =1ma v in 0 2v 0.8 0.9 v v hold ?? i out =1ma v in 2 0v 0.45 v i dd1 1 ?? vout=vout*0.95 80 a i dd2 2 vout=vout+0.5v 10 a i lx ??? v lx =0.4v, vout=vout*0.9 5 360 ma i lxleak ?? vout=v lx =6v 0.5 a f osc ? vout=set vout*0.95 180 khz maxdty ?? on(v lx l )side 84 % 85 % 4(8) n~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? www.gofotech.com
me2108 ? ver 08 me2108f vfb=3.3v , fosc=180khz ? vfb ? 3.22 3.30 3.38 v v start ? i out =1ma v in 0 2v 0.8 0.9 v v hold ?? i out =1ma v in 2 0v 0.45 v i dd1 1 ?? v out=vout*0.95 80 a i dd2 2 vout=vout+0.5v 10 a i lx ??? v lx =0.4v, vout=vout*0.9 5 360 ma i lxleak ?? vout=v lx =6v 0.5 a f osc ? v out=set vout*0.95 180 khz maxdty ?? on(v lx l )side 84 % 85 % ??1 diode ? (?? 0.2v) in581 7,in58 19 2 ?33h r<0.1 ? 3 ??100f ? me2108 ????????? ?????? ? dc/dc ???? 5(8) n~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? www.gofotech.com
me2108 ? ver 08 ??? me2108 ???? 1 ?? 10 f ????????? ???? lx ????? ????? 3 ? esr ? , ?? ???? dc/dc ?? os-con ? 2 ????????? lx ??? ????????? lx ??i lxmax ????? ??????? ?? 3 ??????? ?? 1 ??????????? v out ??? ??? 2 vss ?????? D???? ? 6(8) n~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? www.gofotech.com
me2108 ? ver 08 ? 33uh ? in5817 in5819 ? 100uf/16v( ) ? 2sd1628g 2sd3279 nmos aat9460 xp151 xp161 s 1k ?2200pf r fb rfb1/rfb2=vout/vfb-1 (vout= ?) r fb1 +r fb2 2m c fb l,c l . ? fzfb=1/(2 c fb r fb1 ) 7(8) n~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? www.gofotech.com
me2108 ? ver 08 ?? 8(8) n~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? www.gofotech.com


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