1/11 january 2003 n output current up to 150ma n low dropout voltage (350mv at i out =150ma) n very low quiescent current: 0.1 m a in off mode and max 250 m a in on mode at i out =0ma n low output noise: typ 30 m v at i out =60ma and 10hz lk112 series 2/11 absolute maximum ratings connection diagram (top view) pin description electrical characteristics for lk112 (t j = 25c, v in =v out +1v (see note 1), i out =0ma, v shdn =1.8v, c i = 1 m f, c o = 2.2 m f, c bypass = 0.1 m f unless otherwise specified) note 1: for version with output voltage less than 2v v in =2.4v note 2: only for version with output voltage more than 2.1v symbol parameter2 value unit v i dc input voltage 16 v v shdn shutdown input voltage 16 v i o output current internally limited t stg storage temperature range -55 to +150 c t op operating junction temperature range -30 to +80 c sot23-5l pin n symbol name and function 1 shdn shutdown input: disables the regulator when is connected to gnd or to positive voltage less than 0.6v 2 gnd ground pin: internally connected to the die attach flag to decrease the total thermal resistance and increase the package ability to dissipate power. 3 bypass bypass pin: bypass with 0.1 m f to improve the vref thermal noise performances. 4 out output port 5 in input port symbol parameter test conditions min. typ. max. unit i d quiescent current on mode (except i shdn ) 175 250 m a off mode v i = 8v v shdn = 0v 0 0.1 m a v o output voltage i o = 30ma (see table) d v o line regulation v i = v o +1v to v o +6v, v o 5.6v 0.7 20 mv v i = v o +1v to v o +6v, v o > 5.6v 0.8 40 mv d v o load regulation i o = 1 to 60ma 15 30 mv i o = 1 to 150ma 25 90 mv v d dropout voltage i o = 60 ma (see note 2) 0.17 0.24 v i o = 150 ma (see note 2) 0.29 0.35 v i o output current limit 150 ma svr supply voltage rejection v i = v o +1.5v c byp = 0.1 m f c o = 10 m f f = 400hz i o = 30ma 55 db en output noise voltage b= 10hz to 80khz c byp = 0.1 m f c o = 10 m fv i = v o +1.5v,i o = 60ma 30 m vrms i shdn shutdown input current v shdn = 1.8v output on 12 35 m a v shdn shutdown input logic output on output off 1.8 0.6 v v d v o /t j output voltage temperature coefficient i o = 10ma 0.09 mv/c
lk112 series 3/11 ordering numbers and output voltage (*) available on request part number output voltage v out min v out max test voltage lk112m13tr 1.3v 1.24v 1.36v 2.4v lk112m14tr (*) 1.4v 1.34v 1.46v 2.4v lk112m15tr 1.5v 1.44v 1.56v 2.4v lk112m16tr 1.6v 1.54v 1.66v 2.4v lk112m17tr 1.7v 1.64v 1.76v 2.4v lk112m18tr 1.8v 1.74v 1.86v 2.4v lk112m19tr (*) 1.9v 1.84v 1.96v 2.4v lk112m20tr (*) 2.0v 1.94v 2.06v 3.0v lk112m21tr 2.1v 2.04v 2.16v 3.1v lk112m22tr (*) 2.2v 2.14v 2.26v 3.2v lk112m23tr (*) 2.3v 2.24v 2.36v 3.3v lk112m24tr (*) 2.4v 2.34v 2.46v 3.4v LK112M25TR 2.5v 2.44v 2.56v 3.5v lk112m26tr (*) 2.6v 2.54v 2.66v 3.6v lk112m27tr (*) 2.7v 2.64v 2.76v 3.7v lk112m28tr 2.8v 2.74v 2.86v 3.8v lk112m29tr (*) 2.9v 2.84v 2.96v 3.9v lk112m30tr 3.0v 2.94v 3.06v 4.0v lk112m31tr (*) 3.1v 3.04v 3.16v 4.1v lk112m32tr 3.2v 3.14v 3.26v 4.2v lk112m33tr 3.3v 3.24v 3.36v 4.3v lk112m34tr (*) 3.4v 3.335v 3.465v 4.4v lk112m35tr (*) 3.5v 3.435v 3.565v 4.5v lk112m36tr 3.6v 3.535v 3.655v 4.6v lk112m37tr (*) 3.7v 3.630v 3.770v 4.7v lk112m38tr 3.8v 3.725v 3.875v 4.8v lk112m39tr (*) 3.9v 3.825v 3.975v 4.9v lk112m40tr 4.0v 3.920v 4.080v 5.0v lk112m41tr (*) 4.1v 4.020v 4.180v 5.1v lk112m42tr (*) 4.2v 4.120v 4.280v 5.2v lk112m43tr (*) 4.3v 4.215v 4.385v 5.3v lk112m44tr (*) 4.4v 4.315v 4.485v 5.4v lk112m45tr (*) 4.5v 4.410v 4.590v 5.5v lk112m46tr (*) 4.6v 4.510v 4.690v 5.6v lk112m47tr 4.7v 4.605v 4.795v 5.7v lk112m48tr (*) 4.8v 4.705v 4.895v 5.8v lk112m49tr (*) 4.9v 4.800v 5.000v 5.9v lk112m50tr 5.0v 4.900v 5.100v 6.0v lk112m55tr (*) 5.5v 5.390v 5.610v 6.5v lk112m60tr 6.0v 5.880v 6.120v 7.0v lk112m80tr 8.0v 7.840v 8.160v 9.0v
lk112 series 4/11 typical characteristics (unless otherwise specified t j = 25c, c i =1 m f, c o =2.2 m f, c byp =100nf) figure 1 : output voltage vs temperature figure 2 : output voltage vs temperature figure 3 : line regulation vs temperature figure 4 : load regulation vs temperature figure 5 : dropout voltage vs temperature figure 6 : short circuit currennt vs dropout voltage
lk112 series 5/11 figure 7 : output voltage vs input voltage figure 8 : shutdown voltage vs temperature figure 9 : shutdown current vs shutdown voltage figure 10 : supply voltage rejection vs temperature figure 11 : supply voltage rejection vs output current figure 12 : supply voltage rejection vs frequency
lk112 series 6/11 figure 13 : supply voltage rejection vs temperature figure 14 : quiescent current vs temperature figure 15 : quiescent current vs input voltage figure 16 : quiescent current vs shutdown voltage figure 17 : quiescent current vs output current figure 18 : reverse current vs reverse voltage
lk112 series 7/11 figure 19 : stability figure 20 : spectrum noise figure 21 : start-up transient figure 22 : start-up transient figure 23 : line transient figure 24 : line transient v i = 3 .5 v , v o = 2 .5 v , v shdn = 0 to 1 . 8v , r l = 2 .5 k w , c i = 1 m f , c o =4.7 m f, c by =10nf v i = 3 .5 v , v o = 2 .5 v , v shdn = 0 to 1 . 8v , r l = 68 w , c i = 1 m f , c o = 4 .7 m f , c by =100nf v i = 3 .5 to 4 .5 v , v o = 2 .5 v , v shdn = 1 . 8v , i o = 30 m a , n o c i , c o = 10 m f , c by =100nf, t s =t f =2 m s v i = 3 .5 to 4 .5 v , v o = 2 .5 v , v shdn = 1 . 8v , i o = 30 m a , n o c i , c o = 10 m f , c by =10nf, t s =t f =2 m s
lk112 series 8/11 figure 25 : line transient figure 26 : load transient figure 27 : load transient figure 28 : load transient v i = 3 .5 to 4 .5 v , v o = 2 .5 v , v shdn = 1 . 8v , i o = 30 m a , n o c i , c o = 1 m f , c by =1nf, t s =t f =2 m s v i = 3 . 5 v , v o = 2 . 5v , v shdn = 1 . 8v , i o = 50 t o 100 m a , c i = 1 m f , c o =2.2 m f, c by =10nf, t s =t f =250ns v i = 3 .5 v , v o = 2 .5 v , v shdn = 1 . 8v , i o =5 0 to 100 m a , c i 1 m f , c o =10 m f, c by =100nf, t s =t f =250ns v i = 4 . 8 v , v o = 3 . 8v , v shdn = 1 . 8v , i o = 50 t o 100 m a , c i = 1 m f , c o =2.2 m f, c by =10nf, t s =t f =250ns
lk112 series 9/11 dim. mm. mils min. typ max. min. typ. max. a 0.90 1.45 35.4 57.1 a1 0.00 0.15 0.0 5.9 a2 0.90 1.30 35.4 51.2 b 0.35 0.50 13.7 19.7 c 0.09 0.20 3.5 7.8 d 2.80 3.00 110.2 118.1 e 2.60 3.00 102.3 118.1 e1 1.50 1.75 59.0 68.8 e.95 37.4 e1 1.9 74.8 l 0.35 0.55 13.7 21.6 sot23-5l mechanical data 0
lk112 series 10/11 dim. mm. inch min. typ max. min. typ. max. a 180 7.086 c 12.8 13.0 13.2 0.504 0.512 0.519 d 20.2 0.795 n 60 2.362 t 14.4 0.567 ao 3.13 3.23 3.33 0.123 0.127 0.131 bo 3.07 3.17 3.27 0.120 0.124 0.128 ko 1.27 1.37 1.47 0.050 0.054 0.0.58 po 3.9 4.0 4.1 0.153 0.157 0.161 p 3.9 4.0 4.1 0.153 0.157 0.161 tape & reel sot23-xl mechanical data
lk112 series 11/11 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result f rom its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specificati ons mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectronics. ? the st logo is a registered trademark of stmicroelectronics ? 2003 stmicroelectronics - printed in italy - all rights reserved stmicroelectronics group of companies australia - brazil - canada - china - finland - france - germany - hong kong - india - israel - italy - japan - malaysia - malt a - morocco singapore - spain - sweden - switzerland - united kingdom - united states. ? http://www.st.com
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