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| low noise 150ma ldo regulator 1 no. ea-060-0204 outline ! " " " # "$% & " & & " " " ! & " ! " " $ & ! " " &" "$ " " " " " " " " & " & & " !!" "' !"$ & & $ " ( & )*+ " !, ( " !" "& " $ features ? - . " $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $// 0 ? " "$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $/$ 0 ? .1 2 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $/$32+ 4//!0 )2 , ? 5 # " $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $6/7+&4(58, ? .! 1 &&& "& 2 $$$$$$ $ // !9 ? % ". " "$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $/$/*:92 ? 5 0 2 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $/: ? ! ; ( $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ )*+ " !, ? 2 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ " &/$2 " "&$*2 *$/2 $ ? 7 " " + <0= >.? 7= >5?, ? 7 "@ ( " $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ " $)/!0 ? ; "$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ ! a a ? ! !!" $ applications ? ; & " b 10 ; " & $ ? ; & ! " ! 2 " ! $ ? ; & ' !"$ r1122n 2 block diagram r1122nxx1a r1122nxx1b 31 4 + _ current limit vref v out v dd ce gnd 2 31 4 + _ current limit vref v out v dd ce gnd 2 selection guide ( " " " & " c ' $ " "! " " "! "= ; ! code contents " 2 +2 ,= " &/$2 " "&$*2*$/2 $ 1 " "&0 = 0= >.? 7= >5? 1 " "& " = % $ .+ & " & " < " "$, r1122n 3 pin configuration sot-23-5 5 nc ce v out gnd (mark side) v dd 4 123 pin description pin no. symbol description 2 " b1 b "; " )2 " ; " d % %" ; " * "" " absolute maximum ratings symbol item rating unit 2 " 2 e$/ 2 2 " 2 +% %; ", /$)f2 g/$) 2 2 2 /$)f2 g/$) 2 " // !0 ; ; 1 " */ !h "! " d/f6* ! " **f* r1122n 4 electrical characteristics ? r1122nxx1a 4* symbol item conditions min. typ. max. unit 2 2 2 4 2 g2 !0 )/!0 2 /$36 2 $/ 2 " 2 4 2 g2 h"2 4 2 /$2 */ !0 ? 2 9 ? . " 2 4 2 g2 !0 6/!0 d/ !2 2 1 2 & %.%0.500% -;-2. 0b% " 2 4 2 g2 // e/ 0 " "+ " , 2 42 4 2 g2 /$ $/ 0 ? 2 9 ? 2 . " " 2 g/$*2 2 i2 4)/!0 /$/* /$/ :92 # " &4(58 /$*2 2 4 2 g2 6/ 7 2 " 2 $/ i$/ 2 ? 2 9 ? 2 ! && " 4)/!0 d/ 6* // ! 9 ! ". ! 2 4/2 )/ !0 ; " $* *$/ /$/ ? 2 " 2 >5? $* 2 2 2 " 2 >.? /$// /$* 2 " 7h4/58f//(58 )/ 2 ! r1122n 5 ? r1122nxx1b 4 * symbol item conditions min. typ. max. unit 2 2 2 4 2 g2 !0 )/!0 2 /$36 2 $/ 2 " 2 4 2 g2 h"2 4 2 /$2 */ !0 ? 2 9 ? . " 2 4 2 g2 !0 6/!0 d/ !2 2 1 2 & %.%0.500% -;-2. 0b% " 2 4 2 g2 // e/ 0 " "+ " , 2 4 2 g2 2 4b1 /$ $/ 0 ? 2 9 ? 2 . " " 2 g/$*2 2 i2 4)/!0 /$/* /$/ :92 # " &4(58 /$*2 2 4 2 g2 6/ 7 2 " 2 $/ i$/ 2 ? 2 9 ? 2 ! && " 4)/!0 d/ 6* // ! 9 ! ". ! 2 4/2 )/ !0 %;" " $* *$/ /$/ ? 2 %" 2 >5? $* 2 2 2 %" 2 >.? /$// /$* 2 " 7h4/58f//(58 )/ 2 ! r1122n 6 ? electrical characteristics by output voltage 4* dropout voltage v dif (v) output voltage v out (v) conditions typ. max. $* 2 $i /$) /$** $e 2 $6 /$6 /$de $3 2 $) /$* /$)* $d 2 $e /$/ /$3 $6 2 *$/ 4//!0 /$3 /$i operation r1122xx1a r1122xx1b 31 4 + _ current limit vref v out v dd ce gnd r1 r2 2 r1 r2 31 4 + _ current limit vref v out v dd ce gnd 2 " & "& 2 & ( " " ! & " ! & " " $ 0 " ! & " ! " " " $ r1122n 7 test circuits in i out v dd v out gnd r1122nxx1b series ce out 1 4 2 3 2.2 f in i ss v dd v out gnd r1122nxx1b series ce out 1 4 2 3 2.2 f fig.1 standard test circuit fig.2 supply current test circuit in i out v dd v out gnd r1122nxx1b series ce out 1 4 2 3 p.g in i out v dd v out gnd r1122nxx1b series ce out i1 i2 1 4 2 3 2.2 f fig.3 ripple rejection, line transient response fig.4 load transient response test circuit test circuit r1122n 8 technical notes h" " " & " " = ; ! " " " ! " " ! & " "" & " $@ & '" "% +%' " " ,$ += h" " ! "" " & ! " " "! " $7 & ! " ! "" " ";7$, !!" < bd/j**ai$)+ , bd//)dj*))*ai$)+ , bd//)dj*de*ai$)+ , ;7. (2 "b1 " && "$& ! " ( " " " "! $"" " &$ @ ! "2 "b1 " $ " ! "" "! ( " $ typical application in v dd v out gnd r1122nxx1a series ce out cap. + cap. + in v dd v out gnd r1122nxx1b series ce out cap. + cap. + +% " ! "" , < ! $ @+ " "& !$**$/2, ! d$e @+ " "& !$*$*2, " < ! $ @ r1122n 9 typical characteristics 1) output voltage vs. output current r1122n151b r1122n201b output voltage v out (v) v in =2.0v v in =2.5v v in =3.5v output current i out (ma) 0 100 200 300 500 400 1.6 1.8 1.4 1.2 1 0.8 0.4 0.2 0.6 0 output voltage v out (v) v in =2.3v v in =2.5v v in =3.0v v in =4.0v output current i out (ma) 0 100 200 300 500 400 2.5 2 1.5 0.5 1 0 r1122n301b r1122n401b output voltage v out (v) v in =3.3v v in =3.5v v in =4.0v v in =5.0v output current i out (ma) 0 100 200 300 500 400 3.5 3 2.5 0.5 1.5 1 2 0 output voltage v out (v) v in =4.3v v in =4.5v v in =5.0v v in =6.0v output current i out (ma) 0 100 200 300 500 400 5 4 3 1 2 0 r1122n501b output voltage v out (v) v in =5.3v v in =5.5v v in =6.0v v in =7.0v output current i out (ma) 0 100 200 300 500 400 6 5 4 1 2 3 0 r1122n 10 2) output voltage vs. input voltage r1122n151b r1122n201b output voltage v out (v) i out =1ma i out =30ma i out =50ma input voltage v in (v) 12 34 67 5 1.600 1.500 1.400 1.300 1.200 1.100 1.000 output voltage v out (v) i out =1ma i out =30ma i out =50ma input voltage v in (v) 12 34 67 5 2.100 2.000 1.900 1.800 1.700 1.600 1.500 r1122n301b r1122n401b output voltage v out (v) i out =1ma i out =30ma i out =50ma input voltage v in (v) 234 67 5 3.100 3.000 2.900 2.800 2.700 2.600 2.500 output voltage v out (v) i out =1ma i out =30ma i out =50ma input voltage v in (v) 234 67 5 4.500 4.000 3.500 3.000 2.500 r1122n501b output voltage v out (v) i out =1ma i out =30ma i out =50ma input voltage v in (v) 234 67 5 5.500 5.000 4.500 4.000 3.500 3.000 2.500 r1122n 11 3) dropout voltage vs. output current r1122n151b r1122n201b dropout voltage v dif (v) topt=-40 c topt=25 c topt=85 c output current i out (ma) 0 50 150 100 0.600 0.500 0.400 0.300 0.200 0.100 0.000 dropout voltage v dif (v) topt=-40 c topt=25 c topt=85 c output current i out (ma) 0 50 150 100 0.600 0.500 0.400 0.300 0.200 0.100 0.000 r1122n301b r1122n401b dropout voltage v dif (v) topt=-40 c topt=25 c topt=85 c output current i out (ma) 0 50 150 100 0.600 0.500 0.400 0.300 0.200 0.100 0.000 dropout voltage v dif (v) topt=-40 c topt=25 c topt=85 c output current i out (ma) 0 50 150 100 0.600 0.500 0.400 0.300 0.200 0.100 0.000 r1122n501b dropout voltage v dif (v) topt=-40 c topt=25 c topt=85 c output current i out (ma) 0 50 150 100 0.600 0.500 0.400 0.300 0.200 0.100 0.000 r1122n 12 4) output voltage vs. temperature r1122n151a/b r1122n201b output voltagev out (v) v in =2.5v c in =1 f c out =2.2 f i out =30ma temperature topt ( c) -50 -25 0 25 100 50 75 1.53 1.52 1.51 1.50 1.49 1.47 1.48 output voltagev out (v) v in =3.0v c in =1 f c out =2.2 f i out =30ma temperature topt ( c) -50 -25 0 25 100 50 75 2.10 2.08 2.04 2.06 2.00 2.02 1.98 1.96 1.90 1.94 1.92 r1122n301a/b r1122n401a/b output voltagev out (v) v in =4.0v c in =1 f c out =2.2 f i out =30ma temperature topt ( c) -50 -25 0 25 100 50 75 3.06 3.04 3.02 3.00 2.98 2.94 2.96 output voltagev out (v) v in =5.0v c in =1 f c out =2.2 f i out =30ma temperature topt ( c) -50 -25 0 25 100 50 75 4.08 4.06 4.04 4.00 4.02 3.98 3.92 3.96 3.94 r1122n501a/b output voltagev out (v) v in =6.0v c in =1 f c out =2.2 f i out =30ma temperature topt ( c) -50 -25 0 25 100 50 75 5.10 5.08 5.04 5.06 5.00 5.02 4.98 4.96 4.90 4.94 4.92 r1122n 13 5) supply current vs. input voltage r1122n151b r1122n201b supply current i ss ( a) input voltage v in (v) 12 34 7 56 120 100 80 60 40 20 0 supply current i ss ( a) input voltage v in (v) 12 34 7 56 120 100 80 60 40 20 0 r1122n301b r1122n401b supply current i ss ( a) input voltage v in (v) 12 34 7 56 120 100 80 60 40 20 0 supply current i ss ( a) input voltage v in (v) 12 34 7 56 120 100 80 60 40 20 0 r1122n501b supply current i ss ( a) input voltage v in (v) 12 34 7 56 120 100 80 60 40 20 0 r1122n 14 6) supply current vs. temperature r1122n151a/b r1122n201a/b supply current i ss ( a) temperature topt ( c) -50 -25 0 25 v in =2.5v c in =1 f c out =2.2 f 100 50 75 200 150 100 50 0 supply current i ss ( a) temperature topt ( c) -50 -25 0 25 v in =3.0v c in =1 f c out =2.2 f 100 50 75 200 150 100 50 0 r1122n301a/b r1122n401a/b supply current i ss ( a) temperature topt ( c) -50 -25 0 25 v in =4.0v c in =1 f c out =2.2 f 100 50 75 200 150 100 50 0 supply current i ss ( a) temperature topt ( c) -50 -25 0 25 v in =5.0v c in =1 f c out =2.2 f 100 50 75 200 150 100 50 0 r1122n501a/b supply current i ss ( a) temperature topt ( c) -50 -25 0 25 v in =6.0v c in =1 f c out =2.2 f 100 50 75 200 150 100 50 0 r1122n 15 7) ripple rejection vs. frequency r1122n151a/b r1122n201a/b ripple rejection rr (db) frequency freq (khz) 0.1 1 v in =2.5v+0.5vp-p c out =2.2 f i out =30ma 100 10 90.00 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 ripple rejection rr (db) frequency freq (khz) 0.1 1 v in =3.0v+0.5vp-p c out =2.2 f i out =30ma 100 10 90.00 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 r1122n301a/b r1122n401a/b ripple rejection rr (db) frequency freq (khz) 0.1 1 v in =4.0v+0.5vp-p c out =2.2 f i out =30ma 100 10 90.00 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 ripple rejection rr (db) frequency freq (khz) 0.1 1 v in =5.0v+0.5vp-p c out =2.2 f i out =30ma 100 10 90.00 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 r1122n501a/b ripple rejection rr (db) frequency freq (khz) 0.1 1 v in =6.0v+0.5vp-p c out =2.2 f i out =30ma 100 10 90.00 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 r1122n 16 8) ripple rejection vs. input voltage (dc bias) r1122n301b r1122n301b ripple rejection rr (db) input voltage v in (v) 3.10 3.20 3.30 3.40 c out =ceramic 2.2 f i out =1ma 3.50 90.00 f=400hz f=1khz f=10khz 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 ripple rejection rr (db) input voltage v in (v) 3.10 3.20 3.30 3.40 c out =ceramic 2.2 f i out =10ma 3.50 90.00 f=400hz f=1khz f=10khz 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 r1122n301b ripple rejection rr (db) input voltage v in (v) 3.10 3.20 3.30 3.40 c out =ceramic 2.2 f i out =50ma 3.50 90.00 f=400hz f=1khz f=10khz 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 9) input transient response r1122n151b 4 * 2 4$*2 ? )$*2 4)/!0 4"" 4$ @ 9&4* 2 1 ch1 1.00v ch2 ch1 20.0mv m20.0 s v in v out tek run : 2.50ms/s average r1122n 17 r1122n201b 4 * 2 4)$/2 ? d$/2 4)/!0 4"" 4$ @ 9&4* r1122n301b 4 * 2 4d$/2 ? *$/2 4)/!0 4"" 4$ @ 9&4* r1122n401b 4 * 2 4*$/2 ? i$/2 4)/!0 4"" 4$ @ 9&4* 2 1 1.00v ch2 ch1 20.0mv m20.0 s v in v out tek run : 2.50ms/s average 2 1 1.00v ch2 ch1 20.0mv m20.0 s v in v out tek run : 2.50ms/s average 2 1 1.00v ch2 ch1 20.0mv m20.0 s v in v out tek run : 2.50ms/s average r1122n 18 r1122n501b 4 * 2 4i$/2 ? e$/2 4)/!0 4"" 4$ @ 9&4* 10) load transient response r1122n151b 4 * 4*/!0 ? //!0 2 4$*2 4$ @ 4$ @ 9&4* r1122n201b 4 * 4*/!0 ? //!0 2 4)$/2 4$ @ 4$ @ 9&4* 2 1 1.00v ch2 ch1 20.0mv m20.0 s v in v out tek run : 2.50ms/s average 2 1 500mv ch2 ch1 50.0mv m20.0 s i out v out tek run : 2.50ms/s average 2 1 500mv ch2 ch1 50.0mv m20.0 s i out v out tek run : 2.50ms/s average r1122n 19 r1122n301b 4 * 4*/!0 ? //!0 2 4d$/2 4$ @ 4$ @ 9&4* r1122n401b 4 * 4*/!0 ? //!0 2 4*$/2 4$ @ 4$ @ 9&4* r1122n501b 4 * 4*/!0 ? //!0 2 4i$/2 4$ @ 4$ @ 9&4* 2 1 500mv ch2 ch1 50.0mv m20.0 s i out v out tek run : 2.50ms/s average 2 1 500mv ch2 ch1 50.0mv m20.0 s i out v out tek run : 2.50ms/s average 2 1 500mv ch2 ch1 50.0mv m20.0 s i out v out tek run : 2.50ms/s average r1122n 20 technical notes ceramic cap. ceramic cap. spectrum analyzer i out v dd gnd v out1 ce r1122nxx1b esr 4 s.a 3 1 2 v in measuring circuit for white noise; r1122nxx1b " " + ", "% & "$ " " " " " d/ 2+0$, " " $ +"=h" " ! "" " & ! " " "! " $7 & ! " ! "" " ";7$, k! " " " l +, 2 42 g2 +, @ '" "=/5858 +), ! =* |
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