www.cnz ls.com 1 0755- 8 2948 779 copyright@2007, leadchip semi 6 0v inp ut / 5 v output linear regulator lc 1209 description lc 1209 is a three - terminal positive regulator with an output voltage of 5.0 v and output current up to 100m a. the device features a typical o utput tolerance of 5% . a nd its input voltage can stand a voltage as high as 60v. lc12 09 includes high accuracy voltage reference, error amplifier, ts d circuit and output driver module. lc 1209 offers thermal shut down functions to assure the stability of chip and power system. lc 1209 is available in sot89 - 3, to - 92 and to - 220 power package s features ? maximum output current up to 100ma ? output voltage tolerances of 5% over the temperature r ange ? internal thermal over - temperature protection ? high input voltage (up to 60 v) ? low power consumption: 8 0 ua typ. ? available in plastic to - 92 and plastic to - 220 packages ? no external components applications ? battery powered equipment ? communication equipment ? audio/video equipment typical application application circuit of lc 1209 note : input capacitor (c1=0.33u f) and output capacitor (c2=0.1uf) are recommended in all application circuit. tantalum capacitor is recommended. electrical characteristics free datasheet http:///
www.cnz ls.com 2 0755- 8 2948 779 copyright@2007, leadchip semi lc 1209 ordering information lc 1 209 1 2 3 4 5 code description 1 temperature&rohs: c: - 40~85 ? c ,pb free rohs std. 2 package type: c3:sot - 89 - 3 h:to - 92 n: to220 3 packing type: tr:tape &reel (standard) bg:bag (to - 92) 4 output voltage: e.g. 11 = 1.1 v 15=1.5v 55=5.5 v 5 voltage accuracy: 2 = 2 % blank(default)= 5 % pin configuration marking explanation lc120 9 cc3tr 5 0 sot89 - 3 a e xx ll b yw n : product code xx: output voltage ll : lot no. b: fab code yw : dat e code marking explanation lc120 9 chbg 5 0 to92 a e xx llbyw n : product code xx: output voltage ll : lot no. b: fab code yw : dat e code marking explanation lc120 9 chbg 5 0 to 2 20 a e xx llbyw n : product code xx: output v oltage ll : lot no. b: fab code yw : dat e code recommended work conditions parameter value input voltage range 7v - 60 v operating junction temperature(tj) - 2 0 ? c C 85 ? c free datasheet http:///
www.cnz ls.com 3 0755- 8 2948 779 copyright@2007, leadchip semi lc 1209 absolute maximum rating parameter value max input voltage 60 v max out put current 100ma operating junction temperature(tj) 150 ? c ambient temperature(ta) - 40 ? c C 85 ? c power dissipation to - 92 0.5 w to - 220 1 w sot89 - 3 0.5w storage temperature(ts) - 40 ? c - 150 ? c lead temperature & time 260 ? c , 10 s note: ? exceed these limit s may cause damage to the device. ? exposure to absolute maximum rating conditions may affect device reliability. electrical characteristics test conditions cin=0.33uf,cout=0.1uf,t a =25 ? c, unless otherwise specified. symbol parameter conditions min typ max unit vin input voltage 60 v vout output voltage 1ma iout 40m a 7 vvin 20 v 4.75 5.0 5.25 v vout line regulation 7 vvin 20 v - - 200 mv vout load regulation 1ma iout1 00m a - - 15 0 mv iout(max. ) maximu m output current vin - vout=1.5v 1 0 0 ma iq quiescent current vin - vout=1.25v - 0.08 0.15 ma v/t temperature coefficient vin=6.5v, 25 temp 85 100 ppm tsd over temperature procetion vin=6.5v , iout = 1 m a 150 jc thermal resistor to - 92 10 / w to - 220 4.5 sot89 - 3 20 note1: all tes t are conducted under ambient temperature 25c and within a short period of time 20ms free datasheet http:///
www.cnz ls.com 4 0755- 8 2948 779 copyright@2007, leadchip semi lc 1209 block diagram fig.1 block diagram e xplanation and thermal consideration LC1209 is a series of low dropout voltage and low power consumption regulator. its application circuit is very simple , which only needs two outside capacitors. we have to take heat dissipation into great consideration when voltage of input is high . because in such cases, the power dissipation consumed by lc1 209 is very large. lc1 029 uses sot - 89 - 3 package type and its t hermal resistance is about 20c/w. and the copper area of application board can affect the total thermal resistance. if copper area is 5cm*5cm (two sides), the resistance is about 30c/w. so the total thermal resistance is about 20c/w + 30c/w. we can dec rease total thermal resistance by increasing copper area in application board. when there is no good heat dissipation copper are in pcb, the total thermal resistance will be as high as 120c/w, then the power dissipation of lc 1209 could allow on itself is less than 1w. and furthermore, lc 1209 will work at junction temperature higher than 125c under such condition and no lifetime is guaranteed. free datasheet http:///
www.cnz ls.com 5 0755- 8 2948 779 copyright@2007, leadchip semi lc 1209 typical performance characteristics (t=25c unless specified.) ( thermal shutdown) free datasheet http:///
www.cnz ls.com 6 0755- 8 2948 779 copyright@2007, leadchip semi lc 1209 p ackage out line package to - 92 device per box 1 0 00 unit mm p ackage specification package sot - 89 - 3 devices per reel 1000 unit mm package specification free datasheet http:///
www.cnz ls.com 7 0755- 8 2948 779 copyright@2007, leadchip semi lc 1209 package out line (continued) package to - 220 devices per reel unit mm package specification free datasheet http:///
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