View LK11_8599405.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

1/11 july 2001 n output current up to 200ma n low dropout voltage (500mv max at i out =200ma) n very low quiescent current: 0.1 m a in off mode and max 250 m ainon mode at i out =0ma n low output noise: typ 30 m vat i out =60ma and 10hzLK112s is a low dropout linear regulator with a built in electronic switch. the internal switch can be controlled by ttl or cmos logic levels. the device is on state when the control pin is pulled to a logic high level. an external capacitor can be used connected to the noise bypass pin to lower the output noise level to 30 m v rms . an internal pnp pass transistor is used to achieve a low dropout voltage. the LK112s has a very low quiescent current in on mode while in off mode the iq is reduced down to 100na max. the internal thermal shutdown circuitry limits the juntion temperature to below 150 c. the load current is internally monitored and the device will shutdown in the presence of a short circuit or overcurrent condition at the output. LK112s series low noise low drop voltage regulator with shutdown function schematic diagram sot23-5l
LK112s series 2/11 absolute maximum ratings connection diagram (top view) pin description electrical characteristics for LK112 (t j =25 c, 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 paramet er 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 fto 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 200ma 30 90 mv v d dropout voltage i o = 60 ma (see note 2) 0.17 0.24 v i o = 200 ma (see note 2) 0.35 0.5 v i sc short circuit current 200 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
LK112s series 3/11 ordering numbers and output voltage (*) available on request part number output voltage v out min v out max test voltage LK112sm13tr 1.3v 1.24v 1.36v 2.4v LK112sm14tr (*) 1.4v 1.34v 1.46v 2.4v LK112sm15tr 1.5v 1.44v 1.56v 2.4v LK112sm16tr 1.6v 1.54v 1.66v 2.4v LK112sm17tr (*) 1.7v 1.64v 1.76v 2.4v LK112sm18tr 1.8v 1.74v 1.86v 2.4v LK112sm19tr (*) 1.9v 1.84v 1.96v 2.4v LK112sm20tr (*) 2.0v 1.94v 2.06v 3.0v LK112sm21tr 2.1v 2.04v 2.16v 3.1v LK112sm22tr (*) 2.2v 2.14v 2.26v 3.2v LK112sm23tr (*) 2.3v 2.24v 2.36v 3.3v LK112sm24tr (*) 2.4v 2.34v 2.46v 3.4v LK112sm25tr 2.5v 2.44v 2.56v 3.5v LK112sm26tr (*) 2.6v 2.54v 2.66v 3.6v LK112sm27tr (*) 2.7v 2.64v 2.76v 3.7v LK112sm28tr 2.8v 2.74v 2.86v 3.8v LK112sm29tr (*) 2.9v 2.84v 2.96v 3.9v LK112sm30tr 3.0v 2.94v 3.06v 4.0v LK112sm31tr (*) 3.1v 3.04v 3.16v 4.1v LK112sm32tr 3.2v 3.14v 3.26v 4.2v LK112sm33tr 3.3v 3.24v 3.36v 4.3v LK112sm34tr (*) 3.4v 3.335v 3.465v 4.4v LK112sm35tr (*) 3.5v 3.435v 3.565v 4.5v LK112sm36tr 3.6v 3.535v 3.655v 4.6v LK112sm37tr (*) 3.7v 3.630v 3.770v 4.7v LK112sm38tr 3.8v 3.725v 3.875v 4.8v LK112sm39tr (*) 3.9v 3.825v 3.975v 4.9v LK112sm40tr 4.0v 3.920v 4.080v 5.0v LK112sm41tr (*) 4.1v 4.020v 4.180v 5.1v LK112sm42tr (*) 4.2v 4.120v 4.280v 5.2v LK112sm43tr (*) 4.3v 4.215v 4.385v 5.3v LK112sm44tr (*) 4.4v 4.315v 4.485v 5.4v LK112sm45tr (*) 4.5v 4.410v 4.590v 5.5v LK112sm46tr (*) 4.6v 4.510v 4.690v 5.6v LK112sm47tr 4.7v 4.605v 4.795v 5.7v LK112sm48tr (*) 4.8v 4.705v 4.895v 5.8v LK112sm49tr (*) 4.9v 4.800v 5.000v 5.9v LK112sm50tr 5.0v 4.900v 5.100v 6.0v LK112sm55tr (*) 5.5v 5.390v 5.610v 6.5v LK112sm80tr 8.0v 7.840v 8.160v 9.0v
LK112s series 4/11 typical characteristics (unless otherwise specified t j =25 c, 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
LK112s 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
LK112s 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
LK112s 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 =3.5v, v o =2.5v, v shdn = 0 to 1.8v, r l =2.5k w ,c i =1 m f, c o =4.7 m f, c by =10nf v i =3.5v, v o =2.5v, 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 4.5v, v o =2.5v, v shdn =1.8v, i o =30ma, no c i ,c o =10 m f, c by =100nf, t s =t f =2 m s v i =3.5 to 4.5v, v o =2.5v, v shdn =1.8v, i o =30ma, no c i ,c o =10 m f, c by =10nf, t s =t f =2 m s
LK112s series 8/11 figure 25 : line transient figure 26 : load transient figure 27 : load transient figure 28 : load transient v i =3.5 to 4.5v, v o =2.5v, v shdn =1.8v, i o =30ma, no 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 to 100ma, c i =1 m f, c o =2.2 m f, c by =10nf, t s =t f =250ns v i =3.5v, v o =2.5v, v shdn =1.8v, i o =50 to 100ma, 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 to 100ma, c i =1 m f, c o =2.2 m f, c by =10nf, t s =t f =250ns
LK112s 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 0.95 37.4 e1 1.9 74.8 l 0.35 0.55 13.7 21.6 sot23-5l mechanical data
LK112s 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
LK112s series 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 infringe ment of patents or other righ ts of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this pub lication are subject to change without notice. thi s pub lication supersedes and replaces all information previously supplied. stmicroelectronics prod ucts are not authori zed for use as critical components in life suppo rt devices or systems without express written approval of stmicroelectronics. ? the st logo is a registered trademark of stmicroelectronics ? 2001 stmicroelectronics - printed in italy - all rights reserved stmicroelectronics group of companies australia - brazil - china - finland - france - germany - hong kong - india - italy - japan - malaysia - malta - morocco singapore - spain - sweden - swit zerland - united kingdom ? http://w ww.st.com 11/11

▲Up To Search▲

Price & Availability of LK11

	To Download LK11 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .