View TK11126CSCL_6776602.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

gc3-h008f page 1 application manual ldo regulator with on/off control tk111xxcs contents 1 . description 2 2 . features 2 3 . applications 2 4 . pin configuration 2 5 . block diagram 2 6 . ordering information 3 7 . absolute maximum ratings (both c and i rank in common) 3 8 . electrical characteristics 4 9 . test circuit 8 10 . application example 8 11 . typical characteristics 9 12 . pin description 21 13 . applications information 22 14 . notes 28 15. offices 28
tk111xxcs gc3-h008f page 2 ldo regulator with on/off control tk111xxcs 1. description tk111xxc is an integrated circuit of the silicon monolithic bipolar structure, and the regulator of the low saturation output type with very little quiescent current (63 a). the pnp power transistor is built-in to. the i/o voltage difference when the current of typ.200ma is supplied to the system is 0.2v. the voltage source can be effectively used. therefore, it is the best for the battery use set. the on/off function is built-in to ic. the current at standing-by mode becomes slight (pa level). 1.5 to 10.0v is arranged to the output voltage in 0.1v step. the output voltage is trimmed in high accuracy. the best voltage for the set used will be able to be selected. the over current sensor circuit and the reverse-bias over current obstruction circuit are built-in to. it is a design not broken because an esd is also high. it is possible to use (*o) at ease. when mounting on pcb, the loss becomes about 500mw though the package is very small. tk111xxc uses the circuit with very high stability in dc and ac. the capacitor on the output side is steady in 0.1 f (1.8v vout). the kind of this capacitor is not asked. it is possible to use every type capacitor. however, a good characteristic is shown the more overall larger this capacitor is. the ripple rejection is 84db at 400hz and 80db at 1khz. 2. features ! very good stability c l =0.1 f is steady enough. any type can be used.(1.8v v out ) ! very low dropout voltage. v drop =120mv at 100ma ! high precision output voltage ( 1.5% or 50mv) ! good ripple rejection ratio(80db at 1khz) ! wide operating voltage range (1.8v to 14v) ! built-in short circuit protection ! peak output current is 320ma.(0.3v down point) ! built-in thermal shutdown ! very low quiescent current (i qut =63 a at i out =0ma) ! available very low noise application ! built-in on/off control (0.1 a max standby current) high on ! very small surface mount package ! built-in reverse bias over current protection 3. applications ! any electronic equipment ! battery powered systems ! mobile communication 4. pin configuration top view 1 3 2 5 4 vin vout np gnd vcont 5. block diagram bandgap reference control circuit over heat & over current protection vin gnd vout np vcont 320k ? 500k ?
tk111xxcs gc3-h008f page 3 6. ordering information l c s t k 1 1 1 voltage code package code s : sot23-5 tape / reel code ex. 3.3v : 33 5.0v : 50 rank code c : c rank i : i rank standard voltage (net multiplication bold-faced type) tk11115cs tk11116cs tk11117cs tk11118cs tk11119cs tk11120cs tk11121cs tk11122cs tk11123cs tk11124cs tk11125cs tk11126cs tk11127cs tk11128cs tk11129cs tk11130cs tk11131cs tk11132cs tk11133cs tk11134cs tk11135cs tk11136cs tk11137cs tk11138cs tk11139cs tk11140cs tk11141cs tk11142cs tk11143cs tk11144cs tk11145cs tk11146cs tk11147cs tk11148cs tk11149cs tk11150cs *please contact your authorized toko representatives for voltage availability. if you need the voltage except the above table, please contact toko. 7. absolute maximum ratings (both c and i rank in common) t a =25 c parameter symbol rating units conditions absolute maximum ratings supply voltage v cc,max -0.4 ~ 16 v -0.4 ~ 6 v vout 2.0v reverse bias v rev,max -0.4 ~ 12 v 2.1v vout np pin voltage v np,max -0.4 ~ 5 v control pin voltage v cont,max -0.4 ~ 16 v storage temperature range t stg -55 ~ 150 c power dissipation p d 500 when mounted on pcb mw internal limited t j =150c * operating condition operating temperature range t op -40 ~ 85 c 2.1 ~ 14 v operating voltage range v op 1.8 ~ 14 v t op = -30 ~ 80 c short circuit current i short 360 ma * p d must be decreased at rate of 4.0mw/ c for operation above 25 c. the maximum ratings are the absolute limitation values with the possibility of the ic breakage. when the operation exceeds this standard quality cannot be guaranteed.
tk111xxcs gc3-h008f page 4 8. electrical characteristics 8-1. electrical characteristics of the c rank v in =v out , typ +1v, v cont =1.8v, t a =25 c value parameter symbol min typ max units conditions output voltage v out see table 1 line regulation l in r eg 0.0 5 mv v in =v out,typ +1v ---- v out , typ +6v ? v=5v (11) (28) mv 5ma tk111xxcs gc3-h008f page 5 table 1: output voltages of the c rank i out =5ma, t a =25 c output voltage voltage code v out.min v out.max test voltage output voltage voltage code v out.min v out.max test voltage 1.5v 15 1.450v 1.550v 2.5v 3.4v 34 3.349v 3.451v 4.4v 1.6 16 1.550 1.650 2.6 3.5 35 3.447 3.553 4.5 1.7 17 1.650 1.750 2.7 3.6 36 3.546 3.654 4.6 1.8 18 1.750 1.850 2.8 3.7 37 3.644 3.756 4.7 1.9 19 1.850 1.950 2.9 3.8 38 3.743 3.857 4.8 2.0 20 1.950 2.050 3.0 3.9 39 3.841 3.959 4.9 2.1 21 2.050 2.150 3.1 4.0 40 3.940 4.060 5.0 2.2 22 2.150 2.250 3.2 4.1 41 4.038 4.162 5.1 2.3 23 2.250 2.350 3.3 4.2 42 4.137 4.263 5.2 2.4 24 2.350 2.450 3.4 4.3 43 4.235 4.365 5.3 2.5 25 2.450 2.550 3.5 4.4 44 4.334 4.466 5.4 2.6 26 2.550 2.650 3.6 4.5 45 4.432 4.568 5.5 2.7 27 2.650 2.750 3.7 4.6 46 4.531 4.669 5.6 2.8 28 2.750 2.850 3.8 4.7 47 4.629 4.771 5.7 2.9 29 2.850 2.950 3.9 4.8 48 4.728 4.872 5.8 3.0 30 2.950 3.050 4.0 4.9 49 4.826 4.974 5.9 3.1 31 3.050 3.150 4.1 5.0 50 4.925 5.075 6.0 3.2 32 3.150 3.250 4.2 3.3 33 3.250 3.350 4.3 the output voltage table indicates the standard value when manufactured.
tk111xxcs gc3-h008f page 6 8-2. electrical characteristics of the i rank boldface types apply over the full operating temperature range. (-40 c~85 c) v in =v out.typ +1v, i out =5ma, t a = -40 c~85 c value parameter symbol min typ max units conditions output voltage v out see table 1 line regulation l in r eg 0.0 5 8 mv v in =v out.typ +1v ---- v out.typ +6v ? v=5v (11) (28) ( 34 ) mv 5ma tk111xxcs gc3-h008f page 7 table 2: output voltages of the i rank boldface types apply over the full operating temperature range.(t a =-40~+85 c)i out =5ma output voltage voltage code v out.min v out.max test voltage output voltage voltage code v out.min v out.max test voltage 1.5v 15 1.450v 1.420 1.550v 1.580 2.5v 3.4 v 34 3.349 v 3.315 3.451 v 3.485 4.4 v 1.6 16 1.550 1.520 1.650 1.680 2.6 3.5 35 3.447 3.412 3.553 3.588 4.5 1.7 17 1.650 1.620 1.750 1.780 2.7 3.6 36 3.546 3.510 3.654 3.690 4.6 1.8 18 1.750 1.720 1.850 1.880 2.8 3.7 37 3.644 3.607 3.756 3.793 4.7 1.9 19 1.850 1.820 1.950 1.980 2.9 3.8 38 3.743 3.705 3.857 3.895 4.8 2.0 20 1.950 1.920 2.050 2.080 3.0 3.9 39 3.841 3.802 3.959 3.998 4.9 2.1 21 2.050 2.020 2.150 2.180 3.1 4.0 40 3.940 3.900 4.060 4.100 5.0 2.2 22 2.150 2.120 2.250 2.280 3.2 4.1 41 4.038 3.997 4.162 4.203 5.1 2.3 23 2.250 2.220 2.350 2.380 3.3 4.2 42 4.137 4.095 4.263 4.305 5.2 2.4 24 2.350 2.320 2.450 2.480 3.4 4.3 43 4.235 4.192 4.365 4.408 5.3 2.5 25 2.450 2.420 2.550 2.580 3.5 4.4 44 4.334 4.290 4.466 4.510 5.4 2.6 26 2.550 2.520 2.650 2.680 3.6 4.5 45 4.432 4.387 4.568 4.613 5.5 2.7 27 2.650 2.620 2.750 2.780 3.7 4.6 46 4.531 4.485 4.669 4.715 5.6 2.8 28 2.750 2.720 2.850 2.880 3.8 4.7 47 4.629 4.582 4.771 4.818 5.7 2.9 29 2.850 2.820 2.950 2.980 3.9 4.8 48 4.728 4.680 4.872 4.920 5.8 3.0 30 2.950 3.920 3.050 3.080 4.0 4.9 49 4.826 4.777 4.974 5.023 5.9 3.1 31 3.050 3.020 3.150 3.180 4.1 5.0 50 4.925 4.875 5.075 5.125 6.0 3.2 32 3.150 3.120 3.250 3.280 4.2 3.3 33 3.250 3.217 3.350 3.383 4.3 the output voltage table indicates the standard value when manufactured.
tk111xxcs gc3-h008f page 8 9. test circuit vin icont vcont iin cin iout vout 1.0 f 1.0 f 0.001 f a v a + + 1 3 2 5 4 vin vout np gnd vcont cl cnp note : electrical characteristics are applied for the test circuit above. (cin=1.0 f(tantalum) , cl=1.0 f(tantalum) , cnp=0.001 f(ceramic)) in the application , both of ceramic capacitor and tantalum capacitor are available to use as cin , cl and cnp at iout 0.5ma. 10. application example vin cin to load 0.22 f 0.22 f 0.01 f cl cnp 1 3 2 5 4 vin vout np gnd vcont vcont
tk111xxcs gc3-h008f page 9 11. typical characteristics 11-1. dc characteristics ! line regulation ! load regulation 0 ? ? ? ? v out (mv) -35 15 5 10 20 -5 -15 v in (v) 10 0 -10 -25 15 5 -20 -30 v out =1.5v 2.0v 3.0v 4.0v 5.0v 0 ? ? ? ? v out (mv) -40 10 5 100 200 -5 -15 i out (ma) 0 -10 -25 150 50 -20 -35 -30 v out =2.0v v out =5.0v v out =3.0v ! stability point i out =0 to 200ma ! dropout voltage versus output current -100 ? ? ? ? v out (mv) -200 20 100 300 -20 -60 ? ? ? ? v in (mv) 0 -40 -100 200 0 -80 -120 -140 -160 i out =200ma i out in 50ma steps -180 i out =0ma 0 v drop (mv) -200 0 -40 100 200 -80 -120 -20 -60 -100 -160 -140 -180 i out (ma) ! short circuit current ! maximum output current in low voltage (tk11115cs~tk11124cs) 0 v out (v) 0.0 5.0 300 500 3.0 i out (ma) 4.0 2.0 400 100 200 1.7 i out.max (ma) 0 350 1.9 2.3 200 100 v in (v) 300 250 150 2.2 1.8 50 2.0 2.1 2.4
tk111xxcs gc3-h008f page 10 ! reverse bias current ! v in versus i in (off state) 0 i rev ( a) 0 60 610 40 v rev (v) 50 20 8 4 30 10 2 v out =2v v out =5v v out =3v 0 i s (a) 1p 1 10n 10 20 100p v in (v) 100n 1n 10p 15 5 ! control current versus control voltage ! quiescent current versus output current 0.0 cont ( a) 0.0 20.0 16.0 3.0 5.0 12.0 8.0 v cont (v) 18.0 14.0 10.0 4.0 4.0 1.0 6.0 2.0 2.0 v out i cont 0 i q (ma) 0 10 8 100 200 6 4 i out (ma) 9 7 5 2 150 50 3 1
tk111xxcs gc3-h008f page 11 v in , i out versus v out of the low output voltage devices ! output voltage versus input voltage of the tk11115cs ! output voltage versus output current of the tk11115cs 1.2 v out , output voltage(v) 1.0 1.6 1.3 1.8 2.2 1.1 v in , input voltage(v) 1.5 1.2 1.6 2.0 1.4 i out =200ma 1.4 i out =150ma i out =100ma i out =50ma i out =0ma 0 v out , output voltage(v) 0.0 2.0 1.2 300 500 0.4 i out , output current(ma) 1.8 0.8 200 400 100 v in =1.8v 1.4 50 150 250 350 450 0.2 0.6 1.0 1.6 v in =1.9v v in 2.0v ! output voltage versus input voltage of the tk11118cs ! output voltage versus output current of the tk11118cs 1.3 v out , output voltage(v) 1.3 1.9 1.6 1.9 2.3 1.4 v in , input voltage(v) 1.8 1.5 1.7 2.1 1.5 i out =200ma 1.7 i out =150ma i out =100ma i out =50ma i out =0ma 0 v out , output voltage(v) 0.0 2.0 1.2 300 500 0.4 i out , output current(ma) 1.8 0.8 200 400 100 v in =1.8v 1.4 50 150 250 350 450 0.2 0.6 1.0 1.6 v in =1.9v v in 2.0v ! output voltage versus input voltage of the tk11120cs ! output voltage versus output current of the tk11120cs 1.5 v out , output voltage(v) 1.5 2.1 1.8 2.1 2.5 1.6 v in , input voltage(v) 2.0 1.7 1.9 2.3 1.7 i out =200ma 1.9 i out =150ma i out =100ma i out =50ma i out =0ma 0 v out , output voltage(v) 0.0 1.2 300 400 0.4 i out , output current(ma) 1.8 0.8 200 100 v in =1.8v 1.4 50 150 250 350 0.2 0.6 1.0 1.6 v in =1.9v v in =2.0v 2.0 v in 2.1v
tk111xxcs gc3-h008f page 12 11-2. . temperature characteristics ! maximum output current versus ambinet temperature ! quiescent current versus ambinet temperature -50 out.max (ma) 240 400 360 +25 +100 320 280 t a , ambinet temperature(c) 380 340 300 +75 0 260 +50 -25 v out =v out.typ -0.3v -50 q (ma) 0.0 12.0 8.0 +25 +100 4.0 t a , ambinet temperature(c) 10.0 6.0 2.0 +75 0 +50 -25 i out = 60ma 30ma i out =150ma i out =100ma i out =200ma ! dropout voltage versus ambinet temperature -50 v drop (mv) 0 300 200 +25 +100 100 t a , ambinet temperature(c) 250 150 50 +75 0 +50 -25 i out =30ma i out =60ma i out =100ma i out =150ma i out =200ma ! control current versus ambinet temperature ! control voltage versus ambinet temperature -50 cont ( a) 0.0 18.0 12.0 +25 +100 8.0 4.0 t a , ambinet temperature(c) 14.0 10.0 6.0 +75 0 2.0 +50 -25 v cont =1.8v 16.0 v cont =2.0v v cont =3.0v v cont =4.0v -50 v cont (v) 0.6 1.6 1.2 +25 +100 1.0 0.8 t a , ambinet temperature(c) 1.5 1.1 0.9 +75 0 0.7 +50 -25 v cont (off point) 1.4 1.3 v cont (on point)
tk111xxcs gc3-h008f page 13 temperature characteristics(vout) ! ? v out versus ambient temperature of the tk11115cs ! ? v out versus ambient temperature of the tk11120cs t a , ambient temperature(c) -50 +25 +100 +75 0 +50 -25 ? ? ? ? v out (mv) +5 -5 -15 +15 0 -10 -25 +10 -20 -30 +20 -50 ? ? ? ? v out (mv) +5 -5 -15 +15 0 -10 -25 +10 -20 -30 +20 t a , ambient temperature(c) +25 +100 +75 0 +50 -25 ! ? v out versus ambient temperature of the tk11130cs ! ? v out versus ambient temperature of the tk11133cs -50 ? ? ? ? v out (mv) +5 -5 -15 +15 0 -10 -25 +10 -20 -30 +20 t a , ambient temperature(c) +25 +100 +75 0 +50 -25 -50 ? ? ? ? v out (mv) +5 -5 -15 +15 0 -10 -25 +10 -20 -30 +20 t a , ambient temperature(c) +25 +100 +75 0 +50 -25 ! ? v out versus ambient temperature of the tk11140cs ! ? v out versus ambient temperature of the tk11150cs -50 ? ? ? ? v out (mv) +5 -5 -15 +15 0 -10 -25 +10 -20 -30 +20 t a , ambient temperature(c) +25 +100 +75 0 +50 -25 -50 ? ? ? ? v out (mv) +5 -5 -15 +15 0 -10 -25 +10 -20 -30 +20 t a , ambient temperature(c) +25 +100 +75 0 +50 -25
tk111xxcs gc3-h008f page 14 temperature characteristics (load regulation) ! ? v out versus ambient temperature of the tk11115cs ! ? v out versus ambient temperature of the tk11120cs t a , ambient temperature(c) ? ? ? ? v out (mv) -50 +25 +100 +75 0 +50 -25 -15 -25 -35 -5 -20 -30 -45 -10 -40 -50 0 t a , ambient temperature(c) ? ? ? ? v out (mv) -50 +25 +100 +75 0 +50 -25 -15 -25 -35 -5 -20 -30 -45 -10 -40 -50 0 ! ? v out versus ambient temperature of the tk11130cs ! ? v out versus ambient temperature of the tk11133cs t a , ambient temperature(c) ? ? ? ? v out (mv) -50 +25 +100 +75 0 +50 -25 -15 -25 -35 -5 -20 -30 -45 -10 -40 -50 0 t a , ambient temperature(c) ? ? ? ? v out (mv) -50 +25 +100 +75 0 +50 -25 -15 -25 -35 -5 -20 -30 -45 -10 -40 -50 0 ! ? v out versus ambient temperature of the tk11140cs ! ? v out versus ambient temperature of the tk11150cs t a , ambient temperature(c) ? ? ? ? v out (mv) -50 +25 +100 +75 0 +50 -25 -15 -25 -35 -5 -20 -30 -45 -10 -40 -50 0 t a , ambient temperature(c) ? ? ? ? v out (mv) -50 +25 +100 +75 0 +50 -25 -15 -25 -35 -5 -20 -30 -45 -10 -40 -50 0 6(+,.?y??? 6(+,.?y??? 6(+,.?y??? 6(+,.?y??? 6(+,.?y??? 6(+,.?y???
tk111xxcs gc3-h008f page 15 11-3. ripple rejection (tk11130cs) ! c l =0.22 f, 1.0 f : mlcc gnd tk111xxcs cnp 0.01 f v out c l v cont v in gnd v in 500mv p-p v in =5.0v (v in =v out.typ +2v) v out =3.0v, i out =10ma v r =500mv p-p, f=100hz to 1mhz, cnp=0.01 f ! c l =1.0 f, 10 f: mlcc ! cnp=0.1 f, 0.01 f : mlcc c l =0.22 f(mlcc) c l =1.0 f(mlcc) c l =1.0 f(mlcc) c l =10 f(mlcc) cnp=0.1 f=0.01 f (mlcc)
tk111xxcs gc3-h008f page 16 the ripple rejection characteristic depends on the characteristic and the capacity value of the capacitor connected with the output side. the rr characteristic of 50khz or more changes greatly in the capacitor on the output side and pcb pattern. please confirm stability if necessary while operated. ! ripple rejection versus output voltage ! ripple rejection 0 r.r., repple rejection(db) -100 0 -20 50 100 150 175 200 -40 -60 i out (ma) -10 -30 -50 -80 125 75 25 -70 -90 cnp=0.01 f c l =0.22 f(ceramic) v in =5.0v v ripple =500mv p-p f=1khz f=400hz 0.0 r.r., repple rejection(db) -100 0 -20 0.4 0.8 1.0 -40 -60 v in -v out.typ (v) -10 -30 -50 -80 0.6 0.2 -70 -90 cnp=0.01 f c l =0.22 f(ceramic) v ripple =100mv p-p f=1khz i out =1, 50, 100, 150, 200ma 11-4. on/off control transient response ! parameter: c l =0.22 f, 2.2 f, 10 f fixed: cnp=0.001 f common conditions are shown as follows: v cont =0v 2.0v@f=100hz i out =30ma c in =1.0 f c l =2.2 f cnp=0.001 f 0.22 f v cont v out off on 2.2 f 10 f vertical: 1.0v/div horizontal: 10
tk111xxcs gc3-h008f page 17 ! parameter: cnp=100pf, 0.001 f, 0.01 f fixed: c l =2.2 f ! parameter: cnp=0.001 f, 0.01 f, 0.1 f fixed: c l =2.2 f 11-5. load transient ! i out =5ma 35ma common conditions are shown as follows: v cont =2.0v c in =1.0 f c l =2.2 f cnp=0.001 f ! parameter: c l =0.22 f, 2.2 f, 10 f fixed: cnp=0.001 f ! parameter: c l =0.22 f, 2.2 f, 10 f fixed: cnp=0.001 f vertical: 1.0v/div horizontal: 1.0msec/div v out off on v out off on 100pf 0.001 f 0.01 f 0.1 f 0.001 f 0.01 f v out vertical: 50mv/div horizontal: 10 sec/div i out 35ma 5ma 0.22 f 2.2 f 10 sec/div vertical: 50mv/div horizontal: 5.0 sec/div 10 f 2.2 f 0.22
tk111xxcs gc3-h008f page 18 ! i out =30ma 0ma, 35ma 5ma ! i out =0ma 30ma, 5ma 35ma 11-6. line transient ! v in =v out,typ +1.0v +2.0v (i out =30ma, v cont =1.8v, c in =1.0 f, c l =2.2 f, cnp=0.001 f) ! c l =0.22 f, 2.2 f, 10 f cnp=0.001 f 30ma, 35ma 30ma, 35ma 0ma, 5ma 0ma, 5ma i out =30 to 0ma i out =35 to 5ma i out =0 to 30ma i out =5 to 35ma vertical: 50mv/div horizontal: 1msec/div vertical: 100mv/div horizontal: 10 sec/div v out vertical: 10mv/div horizontal: 100 sec/div v in v out v in v out,typ +2.0v v out,typ +1.0v vertical: 10mv/div horizontal: 100 sec/div c l =0.22 f c l =2.2 f c l =10 f v out,typ +2.0v v out,typ +1.0v
tk111xxcs gc3-h008f page 19 ! cnp=0.001 f, 0.01 f, 0.1 f c l =2.2 f 11-7. output noise tk11130cs bpf=400hz~80khz ! noise verse noise pass capacitance iout=30ma ! noise versus output voltage iout=30ma, cnp=0.01 f, cl=1.0 f(tantal) 0 50 100 150 200 250 300 1p 10p 100p 1000p 0.01u 0.1u cnp(f) noise(uvrms) cl=0.22uf cl=0.47uf cl=1.0uf cl=2.2uf cl=10uf 15 20 25 30 35 40 45 50 55 60 65 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 vo ut ( v) noise(uvrms) ! noise versus output current cl=tantal, cnp=0.01 f ! noise versus output current cl=mlcc, cnp=0.01 f 25 30 35 40 45 50 55 60 65 0 50 100 150 200 iout(ma) noise(uvrms) cl=0.22uf cl=0.47uf cl=1.0uf cl=2.2uf cl=10uf 25 30 35 40 45 50 55 60 65 0 50 100 150 200 iout(ma) noise(uvrms) cl=0.22uf cl=0.47uf cl=1.0uf cl=2.2uf cl=10uf v out v in cnp=0.001 f cnp=0.01 f cnp=0.1 f v out,typ +2.0v v out,typ +1.0v cl=mlcc cl=tantal
tk111xxcs gc3-h008f page 20 ! noise verse frequency iout=10ma, cin=10 f, cl=0.22 f(mlcc) 0.01 0.1 1 10 0.01 0.1 1 10 100 frequency khz) cnp=0.01uf cnp=0.1uf cl is not increased and it is more effective in the noise decrease to enlarge cnp. the cnp capacity recommends 6800pf(682) or 0.01 f(103). the amount of the noise increases in a higher output voltage. please increase this capacity when low noise or more is demanded. ic does not operate abnormally about 0.1 and 0.22 f. mlcc stance for multi layer ceramic capacitor. tantal stance for tantalum capacitor. noise ( hz )
tk111xxcs gc3-h008f page 21 12. pin description pin no. pin description internal equivalent circuit description 1v cont 1 vcont 320k ? 500k ? on/off control terminal c rank v cont > 1.6v : on v cont < 0.6v : off i rank v cont > 1.8v : on v cont < 0.35v : off the pull-down resister (500k ? ) is built-in. 2 gnd gnd terminal 3np np 3 noise bypass terminal connect a bypass capacitor between gnd. 4v out vout vin vref 4 output terminal 5v in input terminal
tk111xxcs gc3-h008f page 22 13. applications information 13-1. input / output capaciters linear regulators require input and output capacitors in order to maintain the regulator's loop stability. the equivalent series resistance (esr) of the output capacitor must be in the stable operation area. however, it is recommended to use as large a value of capacitance as is practical. the output noise and the ripple noise decrease as the capacitance value increases. esr values vary widely between ceramic and tantalum capacitors. however, tantalum capacitors are assumed to provide more esr damping resistance, which provides greater circuit stability. this implies that a higher level of circuit stability can be obtained by using tantalum capacitors when compared to ceramic capacitors with similar values. for output voltage device 2.0v applications, the recommended value of cl 0.10 f. for output voltage device 1.5v applications, the recommended value of cl 0.22 f the input capacitor is necessary when the battery is discharged, the power supply impedance increases, or the line distance to the power supply is long. this capacitor might be necessary on each individual ic even if two or more regulator ics are used. it is not possible to determine this indiscriminately. please confirm the stability while mounted. the ic provides stable operation with an output side capacitor of 0.1 f (vout 2.0v). if it is 0.1 f or more over the full range of temperature, either a ceramic capacitor or tantalum capacitor can be used without considering esr. figure 3: c in =0.22 to 0.1 f c l =0.22 to 0.1 f c np =0.01 f figure 4: stable operation area vs. voltage, current, and esr v out =1.5 to 1.9v v out =2.0v v out =3.0v v out =4.0v v out =5.0v 100 esr( ? ? ? ? ) 10 1 0.1 0.01 150 0 50 100 i out (ma) stable area c l =0.1 f 100 esr( ? ? ? ? ) 10 1 0.1 0.01 150 050100 i out (ma) stable area c l =0.068 f 100 esr( ? ? ? ? ) 10 1 0.1 0.01 150 0 50 100 i out (ma) stable area c l =0.068 f 100 esr( ? ? ? ? ) 10 1 0.1 0.01 150 0 50 100 i out (ma) stable area c l =0.068 f 100 esr( ? ? ? ? ) 10 1 0.1 0.01 150 0 50 100 i out (ma) stable area c l =0.068 f all stable: cl 0.22 f all stable: cl 0.1 f please increase the output capacitor value when the load current is 0.5 ma or less. the stability of the regulator improves if a big output side capacitor is used (the stable operation area extends.)
tk111xxcs gc3-h008f page 23 bias voltage and temperature charcteristics of the ceramic capacitor generally, a ceramic capacitor has both a temperature characteristic and a voltage characteristic. please consider both characteristics when selecting the part. the b curves are the recommend characteristics. ! capacitance versus voltage 0 capacitance(%) 40 100 90 70 24681012 80 60 50 b curve f curve bias voltage(v) ! capacitance versus ambinet temperature -50 capacitance(%) 40 100 90 70 -25 0 25 50 75 100 80 60 ambinet temperature(c) 50 b curve f curve
tk111xxcs gc3-h008f page 24 13-2. definition of term ? ? ? ? output voltage (vout) the output voltage is specified with vin=(vout typ +1v) and iout=5ma. ? ? ? ? maximum output current (iout max) the rated output current is specified under the condition where the output voltage drops 0.3v the value specified with iout=5ma. the input voltage is set to vout typ +1v and the current is pulsed to minimize temperature effect. ? ? ? ? dropout voltage (vdrop) the dropout voltage is the difference between the input voltage and the output voltage at which point the regulator starts to fall out of regulation. below this value, the output voltage will fall as the input voltage is reduced. it is dependent upon the load current and the junction temperature. ? ? ? ? line regulation (linreg) line regulation is the ability of the regulator to maintain a constant output voltage as the input voltage changes. the line regulation is specified as the input voltage is changed from vin=vout typ +1v to vin=vout typ +6v. it is a pulse measurement to minimize temperature effect. ? ? ? ? load regulation (loareg) load regulation is the ability of the regulator to maintain a constant output voltage as the load current changes. it is a pulsed measurement to minimize temperature effects with the input voltage set to vin=vout typ +1v. the load regulation is specified output current step conditions of 5ma to 100ma. ? ? ? ? ripple rejection (r.r) ripple rejection is the ability of the regulator to attenuate the ripple content of the input voltage at the output. it is specified with 200mv rms , 1khz super-imposed on the input voltage, where vin=vout+1.5v. ripple rejection is the ratio of the ripple content of the output vs. input and is expressed in db. ? ? ? ? standby current (istandby) standby current is the current, which flows into the regulator when the output is turned off by the control function (vcont=0v). ? ? ? ? over current sensor the over current sensor protects the device when there is excessive output current. it also protects the device if the output is accidentally connected to ground. ? ? ? ? thermal sensor the thermal sensor protects the device in case the junction temperature exceeds the safe value (t j =150 c). this temperature rise can be caused by external heat, excessive power dissipation caused by large input to output voltage drops, or excessive output current. the regulator will shut off when the temperature exceeds the safe value. as the junction temperatures decrease, the regulator will begin to operate again. under sustained fault conditions, the regulator output will oscillate as the device turns off then resets. damage may occur to the device under extreme fault. please reduce the loss of the regulator when this protection operate, by reducing the input voltage or make better heat efficiency. * in the case that the power, vin ishort(short circuit current), becomes more than twice of the maximum rating of its power dissipation in a moment, there is a possibility that the ic is destroyed before internal thermal protection works. ? ? ? ? reverse voltage protection reverse voltage protection prevents damage due to the output voltage being higher than the input voltage. this fault condition can occur when the output capacitor remains charged and the input is reduced to zero, or when an external voltage higher than the input voltage is applied to the output side ? ? ? ? esd mm: 200pf 0 ? 200v or more hbm: 100pf 1.5k ? 2000v or more vout vin gnd
tk111xxcs gc3-h008f page 25 13-3. board layout pcb material: glass epoxy (t=0.8mm) please do derating with 4.0mw/ c at pd=500mw and 25 c or more. thermal resistance ( ja) is=250 c/w. 25 50 100 pd(mw) 150 c 500 0 0 (85 c) -4.0mw/ c the package loss is limited at the temperature that the internal temperature sensor works (about 150 c). therefore, the package loss is assumed to be an internal limitation. there is no heat radiation characteristic of the package unit assumed because of the small size. the device being mounted on the pcb carries heat away. this value changes by the material and the copper pattern etc. of the pcb. the losses are approximately 500mw. enduring these losses becomes possible in a lot of applications operating at 25 c. the overheating protection circuit operates when there are a lot of losses with the regulator (when outside temperature is high or heat radiation is bad). the output current cannot be pulled enough and the output voltage will drop when the protection circuit operates. when the junction temperature reaches 150 c, the ic is shut down. however, operation begins at once when the ic stops operation and the temperature of the chip decreases. how to determine the thermal resistance when mounted on pcb the thermal resistance when mounted is expressed as follows: tj= ja pd+ta tj of ic is set around 150 c. pd is the value when the thermal sensor is activated. if the ambient temperature is 25 c, then: 150= ja pd+25 ja=125/pd ( c /mw) the simple method to calculate pd mount the ic on the print circuit board. short between the output pin and ground. after that, raise input voltage from 0v to evaluated voltage (see*1) gradually. at shorted the output pin, the power dissipation p d can be expressed as pd=vin iin. the input current decreases gradually as the temperature of the chip becomes high. after a while, it reaches the thermal equilibrium. use this currrent value at the thermal equilibrium. in almost all the cases, it shows 500mw or more. *1 in the case that the power, vin ishort(short circuit current), becomes more than twice of the maximum rating of its power dissipation in a moment, there is a possibility that the ic is destroyed before internal thermal protection works. 0 25 50 75 100 150 pd(mw) pd d pd 2 3 5 4 ta ( ) procedure (when mounted on pcb.) 1. find pd (vin iin when the output side is short-circuited). 2. plot pd against 25 c. 3. connect pd to the point corresponding to the 150 c with a straight line. 4. in design, take a vertical line from the maximum operating temperature (e.g., 75 c) to the derating curve. 5. read off the value of pd against the point at which the vertical line intersects the derating curve. this is taken as the maximum power dissipation dpd. 6. dpd (vinmax ? vout)=iout (at 75 c) the maximum output current at the highest operating temperature will be iout ? ? ? ? dpd (vinmax ? ? ? ? vout). please use the device at low temperature with better radiation. the lower temperature provides better quality. on/off vin vout np
tk111xxcs gc3-h008f page 26 13-4. on/off control it is recommended to turn the regulator off when the circuit following the regulator is non-operating. a design with little electric power loss can be implemented. we recommend the use of the on/off control of the regulator without using a high side switch to provide an output from the regulator. a highly accurate output voltage with low voltage drop is obtained. figure 5: reg vsat on/off cont. because the control current is small, it is possible to control it directly by cmos logic. parallel-connected on/off control figure 6: tk11150cs tk11133cs tk11120cs 5.0v 3.3v 2.0v v in on/off cont. r the above figure is multiple regulators being controlled by a single on/off control signal. there is fear of overheating, because the power loss of the low voltage side ic (tk11120cs) is large. the series resistor (r) is put in the input line of the low output voltage regulator in order to prevent over-dissipation. the voltage dropped across the resistor reduces the large input-to-output voltage across the regulator, reducing the power dissipation in the device. when the thermal sensor works, a decrease of the output voltage, oscillation, etc. may be observed. 13-5. noise bypass the noise and the ripple rejection characteristics depend on the capacitance on the np terminal. the ripple rejection characteristic of the low frequency region improves by increasing the capacitance of cnp. a standard value is cnp=0.001 f. increase cnp in a design with important output noise and ripple rejection requirements. the ic will not be damaged if the capacitor value is increased. the on/off switching speed changes depending on the np terminal capacitance. the switching speed slows when the capacitance is large. 13-6. current boost please use the undermentioned product. the low saturation and the large current regulator can be easily made. tk714xx: only pnp-tr for a current boost is external. * built-in short circuit protection: constant current can be set by external resistor.
tk111xxcs gc3-h008f page 27 13-7. outline; pcb; stamps sot23-5 2.9 1.6 1.1 0.15 0.4 2.8 2.4 reference mount pad 1.0 0.7 (0.3) 0 ~0.1 0.1 1.3max 0.1 0.2 mark 0.2 0.2 5 4 1 3 +0.10 ? 0.05 +0.10 ? 0.05 0.95 0.95 0.95 0.95 m 0.1 unit: mm package structure package material: epoxy resin terminal material: copper alloy mass (reference): 0.016g v out v code v out v code v out v code v out v code 1.5v 15 2.4v 24 3.3v 33 4.2v 42 1.6 16 2.5 25 3.4 34 4.3 43 1.7 17 2.6 26 3.5 35 4.4 44 1.8 18 2.7 27 3.6 36 4.5 45 1.9 19 2.8 28 3.7 37 4.6 46 2.0 20 2.9 29 3.8 38 4.7 47 2.1 21 3.0 30 3.9 39 4.8 48 2.2 22 3.1 31 4.0 40 4.9 49 2.3 23 3.2 32 4.1 41 5.0 50 the output voltage table indicates the standard value when manufactured. please contact your authorized toko representative for voltage availability. voltage code r x x
tk111xxcs gc3-h008f page 28 14. notes ! please be sure that you carefully discuss your planned purchase with our office if you intend to use the products in this application manual under conditions where particularly extreme standards of reliability are required, or if you intend to use products for applications other than those listed in this application manual. " power drive products for automobile, ship or aircraft transport systems; steering and navigation systems, emergency signal communications systems, and any system other than those mentioned above which include electronic sensors, measuring, or display devices, and which could cause major damage to life, limb or property if misused or failure to function. " medical devices for measuring blood pressure, pulse, etc., treatment units such as coronary pacemakers and heat treatment units, and devices such as artificial organs and artificial limb systems which augment physiological functions. " electrical instruments, equipment or systems used in disaster or crime prevention. ! semiconductors, by nature, may fail or malfunction in spite of our devotion to improve product quality and reliability. we urge you to take every possible precaution against physical injuries, fire or other damages which may cause failure of our semiconductor products by taking appropriate measures, including a reasonable safety margin, malfunction preventive practices and fire-proofing when designing your products. ! this application manual is effective from dec 2004. note that the contents are subject to change or discontinuation without notice. when placing orders, please confirm specifications and delivery condition in writing. ! toko is not responsible for any problems nor for any infringement of third party patents or any other intellectual property rights that may arise from the use or method of use of the products listed in this application manual. moreover, this application manual does not signify that toko agrees implicitly or explicitly to license any patent rights or other intellectual property rights which it holds. ! none of the ozone depleting substances(ods) under the montreal protocol are used in our manufacturing process. 15. offices if you need more information on this product and other toko products, please contact us. ! toko inc. headquarters 1-17, higashi-yukigaya 2-chome, ohta-ku, tokyo, 145-8585, japan tel: +81.3.3727.1161 fax: +81.3.3727.1176 or +81.3.3727.1169 web site: http://www.toko.co.jp/ ! toko america web site: http://www.toko.com/ ! toko europe web site: http://www.tokoeurope.com/ ! toko hong kong web site: http://www.toko.com.hk/ ! toko taiwan web site: http://www.tokohc.com.tw/ ! toko singapore web site: http://www.toko.com.sg/ ! toko seoul web site: http://www.toko.co.kr/ ! toko manila web site: http://www.toko.com.ph/ ! toko brazil web site: http://www.toko.com.br/ semiconductor division your distributor

▲Up To Search▲

Price & Availability of TK11126CSCL

	To Download TK11126CSCL Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .