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gc3-o013 page 1 application manual cmos ldo regulator ic tk631xxbb6 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 3 8 . electrical characteristics 4 9 . test circuit 6 10 . typical characteristics 8 11 . pin description 23 12 . applications information 24 13 . package outline 29 14 . notes 30 15 . offices 30
tk631xxbb6 gc3-o013 page 2 cmos ldo regulator tk631xxbb6 1. description the tk631xxbb6 is a cmos ldo regulator. the packages are the very small 4-bump flip chip. the ic is designed for portable applications with space requirements, battery powered system and any electronic equipment. the ic does not require a noise-bypass capacitor. the ic offers high accuracy (1%) and low dropout voltage. the output voltage is internally fixed from 1.5v to 4.2v. 2. features ? high accuracy (1%) ? packages: fc-4 ? no noise bypass capacitor required ? low dropout voltage ? thermal and over current protection ? high maximum load current ? on/off control 3. applications ? mobile communication ? battery powered system ? any electronic equipment 4. pin configuration ? fc-4 (tk631xxbb6) (top view) a1 a2 b1 b2 gnd v cont v in v out a1 mark 5. block diagram v in gnd v cont v out c in c out on/off control v ref thermal & over current protection
tk631xxbb6 gc3-o013 page 3 6. ordering information output voltage voltage code output voltage voltage code output voltage voltage code 1.5v 15 2.8v 28 3.3v 33 1.6v 16 2.85 v 01 3.5v 35 1.8v 18 2.9v 29 2.5v 25 3.0v 30 2.6v 26 3.1v 31 2.7v 27 3.2v 32 *if you need a voltage other than the value lis ted in the above table, please contact toko. 7. absolute maximum ratings t a =25 c parameter symbol rating units conditions absolute maximum ratings input voltage v in,max -0.3 ~ 7.0 v output pin voltage v out,max -0.3 ~ v in +0.3 v control pin voltage v cont,max -0.3 ~ 7.0 v storage temperature range t stg -55 ~ 150 c power dissipation p d 360 mw internal limited t j =150c *, when mounted on pcb operating condition operational temperature range t op -40 ~ 85 c operational voltage range v op 2.0 ~ 6.0 v * p d must be decreased at the rate of 2.9mw/ c for operation above 25 c. the maximum ratings are the absolute limitation values with the possibility of the ic being damaged. if the operation exceeds any of these st andards, quality cannot be guaranteed.
tk631xxbb6 gc3-o013 page 4 8. electrical characteristics the parameters with min. or max. values will be guaranteed at t a =t j =25 c with test when manufacturing or sqc(statistical quality control) methods. the operation between -40 ~ 85 c is guaranteed when design. v in =v out,typ +1v, v cont =1.3v, t a =t j =25c value parameter symbol min typ max units conditions output voltage v out refer to table 1 v i out =5ma line regulation linreg - 0.0 4.0 mv v in =1v load regulation loareg refer to table 2 mv refer to table 2 dropout voltage *1 v drop refer to table 2 mv refer to table 2 maximum load current *2 i out,max 210 300 - ma v out =v out,typ 0.9 quiescent current i q - 80 120 a i out =0ma, v cont =v in standby current i standby - 0.01 0.1 a v cont =0v gnd pin current i gnd - 90 150 a i out =50ma, v cont =v in control terminal control current i cont - 2.0 4.0 a v cont =1.3v 1.3 - - v v out on state control voltage v cont - - 0.25 v v out off state reference value output voltage / temp. v out / t a - 100 - ppm/c i out =5ma output noise voltage (tk63128) v noise - 40 - vrms c out =1.0f , i out =30ma , bpf=400hz~80khz ripple rejection (tk63128) rr - 70 - db c out =1.0f , i out =10ma , f=1khz rise time (tk63128) t r - 30 - s c out =1.0f , v cont : pulse wave (100hz) , v cont on v out 95% point *1 : for v out 2.0v , no regulations. *2 : the maximum output current is limited by power dissipation. the maximum load current is the current where the output vo ltage decreases to 90% by in creasing the output current at t j =25c, compared to the output voltage specified at v in =v out,typ +1v. the maximum load curre nt indicates the current at which over current protection turns on. for all output voltage products, the maximum output current for normal operation without operating any protection is 200ma. accordingly, loareg and v drop are specified on the condition that i out is less than 200ma. general note parameters with only typical values are just reference. (not guaranteed) the noise level is dependent on the output voltage , the capacitance and capacitor characteristics.
tk631xxbb6 gc3-o013 page 5 table 1 . preferred product load regulation dropout voltage output voltage i out =100ma i out =150ma i out =100ma i out =150ma min typ max typ max typ max typ max typ max part number v v v mv mv mv mv mv mv mv mv tk63115bb6 1.485 1.500 1.515 4 16 6 24 155 - 235 - tk63116bb6 1.584 1.600 1.616 tk63118bb6 1.782 1.800 1.818 4 16 6 24 130 - 195 - tk63125bb6 2.475 2.500 2.525 4 16 6 24 95 145 155 220 tk63126bb6 2.574 2.600 2.626 4 16 6 24 90 140 155 210 tk63127bb6 2.673 2.700 2.727 4 16 6 24 85 135 155 205 tk63128bb6 2.772 2.800 2.828 4 16 6 24 85 130 155 195 tk63101bb6 2.821 2.850 2.879 4 16 6 24 80 130 155 195 tk63129bb6 2.871 2.900 2.929 4 16 6 24 80 125 155 195 tk63130bb6 2.970 3.000 3.030 4 16 6 24 80 125 155 195 tk63131bb6 3.069 3.100 3.131 4 16 7 28 80 125 155 195 tk63132bb6 3.168 3.200 3.232 4 16 7 28 80 125 155 195 tk63133bb6 3.267 3.300 3.333 4 16 7 28 80 125 155 195 tk63135bb6 3.465 3.500 3.535 4 16 7 28 80 125 155 195 table 2 . preferred product load regulation dropout voltage i out =5 ~ 100ma i out =5 ~ 150ma i out =5 ~ 200ma i out =100ma i out =150ma i out =200ma typ max typ max typ max typ max typ max typ max part number mv mv mv mv mv mv mv mv mv mv mv mv tk63115bb6 4 16 6 24 8 32 155 - 235 - 315 - tk63116bb6 4 16 6 24 8 32 150 - 220 - 295 - tk63118bb6 4 16 6 24 8 32 130 - 195 - 280 - tk63125bb6 4 16 6 24 9 36 95 145 155 220 280 380 tk63126bb6 4 16 6 24 9 36 90 140 155 210 280 380 tk63127bb6 4 16 6 24 9 36 85 135 155 205 280 380 tk63128bb6 4 16 6 24 9 36 85 130 155 195 280 380 tk63101bb6 4 16 6 24 9 36 80 130 155 195 280 380 tk63129bb6 4 16 6 24 9 36 80 125 155 195 280 380 tk63130bb6 4 16 6 24 9 36 80 125 155 195 280 380 tk63131bb6 4 16 7 28 9 36 80 125 155 195 280 380 tk63132bb6 4 16 7 28 9 36 80 125 155 195 280 380 tk63133bb6 4 16 7 28 9 36 80 125 155 195 280 380 tk63135bb6 4 16 7 28 9 36 80 125 155 195 280 380 notice. please contact your authorized toko representative for voltage availability .
tk631xxbb6 gc3-o013 page 6 9. test circuit i out =5ma c out =1.0uf c in =1.0uf v cont v _ a _ i cont v out v in = v out,typ +1.0v a _ v in v out v cont gnd i in ? test circuit for el ectrical characteristic notice. the limit value of electrical characteristics is applied when c in =1.0 f(ceramic), c out =1.0 f(ceramic). but c in , and c out can be used with b oth ceramic and tantalum capacitors. i out c out =1.0uf c in =1.0uf v cont v _ a _ i cont v out v in v in v out v cont gnd ? v out vs v in ? v drop vs i out ? v out vs i out ? v out vs i out ? v out vs t a ? v drop vs t a ? i out,max vs t a ? i cont vs v cont , v out vs v cont ? i cont vs t a ? v cont vs t a ? v noise vs v in ? v noise vs i out ? v noise vs v out ? v noise vs frequency c out =1.0uf c in =1.0uf v cont a _ i cont v in = v out,typ +1.0v a _ v in v out v cont gnd i in open ? i q vs v in ? i standby vs v in ? i q vs t a i out c out =1.0uf c in =1.0uf v cont v in = v out,typ +1.0v v in v out v cont gnd a _ i gnd a _ i cont ? i gnd vs i out ? i gnd vs t a
tk631xxbb6 gc3-o013 page 7 i out =10ma c out =1.0uf v in v out v cont gnd v in = v out,typ +1.5v v ripple = 500mv p-p v cont =1.3v ? rr vs v in ? rr vs frequency ? rr vs frequency c out =1.0uf v _ v out v in v out v cont gnd v out,typ +1v v out,typ +2v v cont =1.3v i out =5ma ? line transient c out =1.0uf c in =1.0uf v _ v out v in = v out,typ +1.0v v in v out v cont gnd i out v cont =1.3v ? load transient i out =5ma c out =1.0uf c in =1.0uf v _ v out v in = v out,typ +1.0v v in v out v cont gnd v cont =0v 1.3v ? on/off transient
tk631xxbb6 gc3-o013 page 8 10. typical characteristics 10-1. dc characteristics ? v out vs v in (tk63115bb6) v in [v] 0123456 v out [mv] -30 -25 -20 -15 -10 -5 0 5 10 i out =5ma ? v out vs v in (tk63115bb6) v in [v] 0123456 v out [mv] -30 -25 -20 -15 -10 -5 0 5 10 i out =5ma ? v out vs v in (tk63128bb6) v in [v] 0123456 v out [mv] -30 -25 -20 -15 -10 -5 0 5 10 i out =5ma ? v out vs v in (tk63128bb6) v in [v] 0123456 v out [mv] -30 -25 -20 -15 -10 -5 0 5 10 i out =5ma ? v out vs v in (tk63142bb6) v in [v] 0123456 v out [mv] -30 -25 -20 -15 -10 -5 0 5 10 i out =5ma ? v out vs v in (tk63142bb6) v in [v] 0123456 v out [mv] -30 -25 -20 -15 -10 -5 0 5 10 i out =5ma ? v out vs v in (tk63115bb6) v in -v out [mv] -100 0 100 200 300 v out [mv] -100 -80 -60 -40 -20 0 20 40 i out =0, 50, 100, 150ma ? v out vs v in (tk63128bb6) v in -v out [mv] -100 0 100 200 300 v out [mv] -100 -80 -60 -40 -20 0 20 40 i out =0, 50, 100, 150ma ? v out vs v in (tk63142bb6) v in -v out [mv] -100 0 100 200 300 v out [mv] -100 -80 -60 -40 -20 0 20 40 i out =0, 50, 100, 150ma
tk631xxbb6 gc3-o013 page 9 ? v drop vs i out (tk63115bb6) i out [ma] 0 50 100 150 200 v drop [mv] -400 -350 -300 -250 -200 -150 -100 -50 0 ? v drop vs i out (tk63128bb6) i out [ma] 0 50 100 150 200 v drop [mv] -400 -350 -300 -250 -200 -150 -100 -50 0 ? v drop vs i out (tk63142bb6) i out [ma] 0 50 100 150 200 v drop [mv] -400 -350 -300 -250 -200 -150 -100 -50 0 ? v out vs i out (tk63115bb6) i out [ma] 0 100 200 300 400 500 v out [v] 0 0.5 1 1.5 2 ? v out vs i out (tk63128bb6) i out [ma] 0 100 200 300 400 500 v out [v] 0 0.5 1 1.5 2 2.5 3 3.5 4 ? v out vs i out (tk63142bb6) i out [ma] 0 100 200 300 400 500 v out [v] 0 1 2 3 4 5 6
tk631xxbb6 gc3-o013 page 10 ? v out vs i out (tk63115bb6) i out [ma] 0 50 100 150 200 v out [mv] -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 ? v out vs i out (tk63128bb6) i out [ma] 0 50 100 150 200 v out [mv] -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 ? v out vs i out (tk63142bb6) i out [ma] 0 50 100 150 200 v out [mv] -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 ? v out vs t a (tk63115bb6) t a [c] -50 -25 0 25 50 75 100 v out [mv] -100 -80 -60 -40 -20 0 20 40 60 80 100 ? v out vs t a (tk63128bb6) t a [c] -50 -25 0 25 50 75 100 v out [mv] -100 -80 -60 -40 -20 0 20 40 60 80 100 ? v out vs t a (tk63142bb6) t a [c] -50 -25 0 25 50 75 100 v out [mv] -100 -80 -60 -40 -20 0 20 40 60 80 100
tk631xxbb6 gc3-o013 page 11 ? v drop vs t a (tk63115bb6) t a [c] -50 -25 0 25 50 75 100 v drop [mv] -400 -350 -300 -250 -200 -150 -100 -50 0 i out =100ma i out =150ma ? v drop vs t a (tk63128bb6) t a [c] -50 -25 0 25 50 75 100 v drop [mv] -400 -350 -300 -250 -200 -150 -100 -50 0 i out =100ma i out =150ma ? v drop vs t a (tk63142bb6) t a [c] -50 -25 0 25 50 75 100 v drop [mv] -400 -350 -300 -250 -200 -150 -100 -50 0 i out =100ma i out =150ma ? i out,max vs t a (tk63115bb6) t a [c] -50 -25 0 25 50 75 100 i out,max [ma] 200 300 400 ? i out,max vs t a (tk63128bb6) t a [c] -50 -25 0 25 50 75 100 i out,max [ma] 200 300 400 ? i out,max vs t a (tk63142bb6) t a [c] -50 -25 0 25 50 75 100 i out,max [ma] 200 300 400
tk631xxbb6 gc3-o013 page 12 ? i q vs v in (tk63115bb6) v in [v] 0123456 i q [a] 0 20 40 60 80 100 120 140 v cont =v in ? i q vs v in (tk63128bb6) v in [v] 0123456 i q [a] 0 20 40 60 80 100 120 140 v cont =v in ? i q vs v in (tk63142bb6) v in [v] 0123456 i q [a] 0 20 40 60 80 100 120 140 v cont =v in ? i standby vs v in (tk63115bb6) v in [v] 0123456 i standby [na] 0 1 2 3 4 5 6 7 8 9 10 v cont =0v ? i standby vs v in (tk63128bb6) v in [v] 0123456 i standby [na] 0 1 2 3 4 5 6 7 8 9 10 v cont =0v ? i standby vs v in (tk63142bb6) v in [v] 0123456 i standby [na] 0 1 2 3 4 5 6 7 8 9 10 v cont =0v
tk631xxbb6 gc3-o013 page 13 ? i gnd vs i out (tk63115bb6) i out [ma] 0 50 100 150 200 i gnd [a] 0 20 40 60 80 100 120 140 160 180 200 v cont =v in ? i gnd vs i out (tk63128bb6) i out [ma] 0 50 100 150 200 i gnd [a] 0 20 40 60 80 100 120 140 160 180 200 v cont =v in ? i gnd vs i out (tk63142bb6) i out [ma] 0 50 100 150 200 i gnd [a] 0 20 40 60 80 100 120 140 160 180 200 v cont =v in ? i q vs t a (tk63115bb6) t a [c] -50 -25 0 25 50 75 100 i q [a] 0 20 40 60 80 100 120 140 v cont =v in ? i q vs t a (tk63128bb6) t a [c] -50 -25 0 25 50 75 100 i q [a] 0 20 40 60 80 100 120 140 v cont =v in ? i q vs t a (tk63142bb6) t a [c] -50 -25 0 25 50 75 100 i q [a] 0 20 40 60 80 100 120 140 v cont =v in
tk631xxbb6 gc3-o013 page 14 ? i gnd vs t a (tk63115bb6) t a [c] -50 -25 0 25 50 75 100 i gnd [a] 0 20 40 60 80 100 120 140 v cont =v in , i out =50ma ? i gnd vs t a (tk63128bb6) t a [c] -50 -25 0 25 50 75 100 i gnd [a] 0 20 40 60 80 100 120 140 v cont =v in , i out =50ma ? i gnd vs t a (tk63142bb6) t a [c] -50 -25 0 25 50 75 100 i gnd [a] 0 20 40 60 80 100 120 140 v cont =v in , i out =50ma ? i cont vs v cont , v out vs v cont (tk63115bb6) v cont [v] 0 0.5 1 1.5 2 v out [v] 0 0.5 1 1.5 2 i cont [a] 0 2 4 6 8 v out i cont ? i cont vs v cont , v out vs v cont (tk63128bb6) v cont [v] 0 0.5 1 1.5 2 v out [v] 0 1 2 3 4 i cont [a] 0 2 4 6 8 v out i cont ? i cont vs v cont , v out vs v cont (tk63142bb6) v cont [v] 0 0.5 1 1.5 2 v out [v] 0 1 2 3 4 5 6 i cont [a] 0 1 2 3 4 5 6 v out i cont
tk631xxbb6 gc3-o013 page 15 ? v cont vs t a (tk63115bb6) t a [c] -50 -25 0 25 50 75 100 v cont [v] 0 0.2 0.4 0.6 0.8 1 1.2 1.4 ? v cont vs t a (tk63128bb6) t a [c] -50 -25 0 25 50 75 100 v cont [v] 0 0.2 0.4 0.6 0.8 1 1.2 1.4 ? v cont vs t a (tk63142bb6) t a [c] -50 -25 0 25 50 75 100 v cont [v] 0 0.2 0.4 0.6 0.8 1 1.2 1.4 ? i cont vs t a (tk631xxbb6) t a [c] -50 -25 0 25 50 75 100 i cont [a] 0 0.5 1 1.5 2 2.5 v cont =1.3v
tk631xxbb6 gc3-o013 page 16 10-2. ac characteristics ? rr vs v in (tk63115bb6) v in -v out [v] 00.511.522.533.5 rr [db] -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 i out =200ma 150ma 100ma 50ma 10ma c in =1.0f, v ripple =0.1v p-p , f=1khz ? rr vs v in (tk63128bb6) v in -v out [v] 00.511.522.533.5 rr [db] -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 i out =200ma 150ma 100ma 50ma 10ma c in =1.0f, v ripple =0.1v p-p , f=1khz ? rr vs v in (tk63142bb6) v in -v out [v] 00.511.522.5 rr [db] -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 i out =200ma 150ma 100ma 50ma 10ma c in =1.0f, v ripple =0.1v p-p , f=1khz ? rr vs frequency (tk63115bb6) frequency [hz] 100 1k 10k 100k rr [db] -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 1m i out =10ma c out =1.0f(cer.) c out =1.0f(tant.) ? rr vs frequency (tk63128bb6) frequency [hz] 100 1k 10k 100k 1m rr [db] -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 i out =10ma c out =1.0f(cer.) c out =1.0f(tant.) ? rr vs frequency (tk63142bb6) frequency [hz] 100 1k 10k 100k 1m rr [db] -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 i out =10ma c out =1.0f(cer.) c out =1.0f(tant.)
tk631xxbb6 gc3-o013 page 17 ? rr vs frequency (tk63115bb6) frequency [hz] 100 1k 10k 100k 1m rr [db] -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 i out =10ma c out =0.68, 1.0, 2.2, 4.7f(cer.) ? rr vs frequency (tk63128bb6) frequency [hz] 100 1k 10k 100k 1m rr [db] -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 i out =10ma c out =0.68, 1.0, 2.2, 4.7f(cer.) ? rr vs frequency (tk63142bb6) frequency [hz] 100 1k 10k 100k 1m rr [db] -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 i out =10ma c out =0.68, 1.0, 2.2, 4.7f(cer.) the ripple rejection (rr) ch aracteristic depends on the characteristic and the capacitance value of the capacitor connected to the output side . the rr characteristic of 50khz or more varies greatly with the capacitor on the output side and pcb pattern. if necessary, please confirm stability of your design.
tk631xxbb6 gc3-o013 page 18 ? v noise vs v in (tk63115bb6) v in [v] 123456 v noise [vrms] 0 10 20 30 40 50 60 70 80 90 100 i out =30ma ? v noise vs v in (tk63128bb6) v in [v] 2.5 3 3.5 4 4.5 5 5.5 6 v noise [vrms] 0 10 20 30 40 50 60 70 80 90 100 i out =30ma ? v noise vs v in (tk63142bb6) v in [v] 44.555.56 v noise [vrms] 0 10 20 30 40 50 60 70 80 90 100 i out =30ma ? v noise vs i out (tk63115bb6) i out [ma] 0 50 100 150 200 v noise [vrms] 0 10 20 30 40 50 60 70 80 90 100 ? v noise vs i out (tk63128bb6) i out [ma] 0 50 100 150 200 v noise [vrms] 0 10 20 30 40 50 60 70 80 90 100 ? v noise vs i out (tk63142bb6) i out [ma] 0 50 100 150 200 v noise [vrms] 0 10 20 30 40 50 60 70 80 90 100
tk631xxbb6 gc3-o013 page 19 ? v noise vs v out (tk631xxbb6) v out [v] 1.522.533.544.5 v noise [vrms] 0 10 20 30 40 50 60 70 80 90 100 i out =30ma ? v noise vs frequency (tk63115bb6) frequency [hz] 10 100 1k 10k v noise [v/ hz] 0.01 0.1 1 100k i out =10ma 10 ? v noise vs frequency (tk63128bb6) frequency [hz] 10 100 1k 10k v noise [v/ hz] 0.01 0.1 1 100k i out =10ma 10 ? v noise vs frequency (tk63142bb6) frequency [hz] 10 100 1k 10k v noise [v/ hz] 0.01 0.1 1 100k i out =10ma 10
tk631xxbb6 gc3-o013 page 20 10-3. transient characteristics ? line transient (tk63115bb6) time 20sec/div 10mv/div v in v out 3.5v 2.5v i out =30, 100, 150ma ? line transient (tk63128bb6) time 20sec/div 10mv/div v in v out 4.8v 3.8v i out =30, 100, 150ma ? line transient (tk63142bb6) time 20sec/div 10mv/div v in v out 6.2v 5.2v i out =30, 100, 150ma ? load transient (i out =5 ? 100ma) (tk63115bb6) time 10sec/div 50mv/div 100ma/div i out v out c out =2.2f 5ma 100ma c out =0.68f c out =1.0f ? load transient (i out =5 ? 100ma) (tk63128bb6) time 10sec/div 50mv/div 100ma/div i out v out c out =1.0f c out =0.68f c out =2.2f 5ma 100ma ? load transient (i out =5 ? 100ma) (tk63142bb6) time 10sec/div 50mv/div 100ma/div i out v out c out =1.0f c out =0.68f c out =2.2f 5ma 100ma
tk631xxbb6 gc3-o013 page 21 ? load transient (i out =0 ? 100ma) (tk63115bb6) time 5msec/div 100ma/div i out v out 100mv/div 100ma 0 or 5ma 0 100ma 5 100ma ? load transient (i out =0 ? 100ma) (tk63128bb6) time 2msec/div 100ma/div i out v out 100mv/div 100ma 0 or 5ma 0 100ma 5 100ma ? load transient (i out =0 ? 100ma) (tk63142bb6) time 1msec/div 100ma/div i out v out 100mv/div 100ma 0 or 5ma 0 100ma 5 100ma time 10sec/div 100ma/div i out v out 100mv/div 100ma 0 or 5ma 0 100ma 5 100ma time 10sec/div 100ma/div i out v out 100mv/div 100ma 0 or 5ma 0 100ma 5 100ma time 10sec/div 100ma/div i out v out 100mv/div 100ma 0 or 5ma 0 100ma 5 100ma
tk631xxbb6 gc3-o013 page 22 ? on/off transient (v cont =0 1.3v) (tk63115bb6) time 10sec/div 0.5v/div 200ma/div v cont i in v out 1v/div i out =30ma c out =0.68, 1.0, 2.2, 4.7f ? on/off transient (v cont =0 1.3v) (tk63128bb6) time 10sec/div 1v/div 200ma/div v cont i in v out 1v/div i out =30ma c out =0.68, 1.0, 2.2, 4.7f ? on/off transient (v cont =0 1.3v) (tk63142bb6) time 10sec/div 2v/div 200ma/div v cont i in v out 1v/div i out =30ma c out =0.68, 1.0, 2.2, 4.7f ? on/off transient (v cont =1.3 0v) (tk63115bb6) time 200sec/div 0.5v/div 200ma/div v cont i in v out 1v/div i out =30ma c out =0.68, 1.0, 2.2, 4.7f ? on/off transient (v cont =1.3 0v) (tk63128bb6) time 200sec/div 1v/div 200ma/div v cont i in v out 1v/div i out =30ma c out =0.68, 1.0, 2.2, 4.7f ? on/off transient (v cont =1.3 0v) (tk63142bb6) time 200sec/div 2v/div 200ma/div v cont i in v out 1v/div i out =30ma c out =0.68, 1.0, 2.2, 4.7f
tk631xxbb6 gc3-o013 page 23 11. pin description pin no. tk631xxbb6 pin description internal equivalent circuit description a1 gnd gnd terminal a2 v cont v cont 675k esd protection control terminal v cont > 1.3v : on v cont < 0.25v : off the pull-down resistor (about 675k ) is built-in. b1 v out v out v in esd protection output terminal b2 v in input terminal
tk631xxbb6 gc3-o013 page 24 12. applications information 12-1. stability linear regulators require input and output capacitors in order to maintain the regulator's loop stability. if a 1.0f capacitor is connected to the output side, the ic provides stable operation. however, it is recommended to use as large a value capacitor as is practical. the output noise and the ripple noise decrease as the value of the capacitor increases. a recommended value of the application is as follows. c in =1.0f, c out =1.0f it is not possible to determine this indiscriminately. please confirm the stability in your design. fig12-1: capacitor in the application tk631xx v out v cont v in c out 1.0f c in 1.0f fig12-2: output current vs stable operation area (tk631xxbb6) tk63115bb6 0.01 0.1 1 10 100 0 50 100 150 200 i out (ma) esr ( ) unstable area stable area c out =0.68uf tk63128bb6 0.01 0.1 1 10 100 0 50 100 150 200 i out (ma) esr ( ) unstable area stable area c out =0.68uf tk63142bb6 0.01 0.1 1 10 100 0 50 100 150 200 i out (ma) esr ( ) unstable area stable area c out =0.68uf
tk631xxbb6 gc3-o013 page 25 fig.12-2 show the stable operation area of output current and the equivalent se ries resistance (esr) with a ceramic capacitor of 0.68f. esr of the output capacitor must be in the stable operation area. please select the best output capacitor according to the voltage and current used. the stability of the regulator improves as the value of the output side capacitor increases (the stable operation area extends.) please use as large a value capacitor as is practical. for evaluation kyocera : cm05b104k10ab , cm05b224k10ab , cm105b104k16a , cm105b224k16a , cm21b225k10a murata : grm36b104k10 , grm42b104k10 , grm39b104k25 , grm39b224k10 , grm39b105k6.3 fig12-3: ex. ceramic capacitance vs voltage, temperature cap(%) 12 50 bias voltage(v) cap(%) 100 ta(c) capacitance vs voltage capacitance vs temperature b curve f curve 10 8 6 4 2 0 60 70 80 90 100 b curve f curve 75 50 25 0 -25 -50 50 60 70 80 90 100 generally, a ceramic capacitor has both a temperature characteristic and a voltage ch aracteristic. please consider both characteristics when selec ting the part. the b curves are the recommended characteristics.
tk631xxbb6 gc3-o013 page 26 12-2. layout fig12-4: layout example (tk631xxbb6) gnd v cont v in v out gnd gnd (top view) 1 pcb material : glass epoxy size : 7mm 8mm0.8mm please do derating with 2.9mw/ c at pd=360mw(fc-4), and 25 c or more. fig12-5: derating curve (tk631xxbb6) 25 50 100 150c pd(mw) 360 (85c) -2.9mw/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 its small size. heat is carried away from the device by being mounted on the pcb. this value is directly effected by the material and the copper pattern etc. of the pcb. the losses are approximately 360mw. enduring these losses becomes possible in a lot of applications operating at 25 c. the overheating protection circuit operates when the junction temperature reaches 150 c (this happens when the regulator is dissipating excessive power, outside temperature is high, or heat radiation is bad). the output current and the output voltage will drop when the protection circuit operates. however, operation begins again as soon as the output voltage drops 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: t j = ja pd+t a t j 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)
tk631xxbb6 gc3-o013 page 27 pd is easily calculated. a simple way to determine pd is to calculate v in i in when the output side is shorted. input current gradually falls as output voltage rises after working thermal shutdown. you should use the value when thermal equilibrium is reached. fig12-6: how to determine dpd 25 50 100 150 pd (mw) pd ta (c) 75 125 dpd 2 3 4 5 procedure (when mounted on pcb.) 1. find pd (v in i in 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 (v in,max ? v out )=i out (at 75 c) the maximum output current at the highest operating temperature will be i out ? dpd (v in,max ? v out ). please use the device at low temperature with better radiation. the lower temperature provides better quality. 12-3. on/off control it is recommended to turn the regulator off when the circuit following the regulator is not 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 accu rate output voltage with low voltage drop is obtained. because the control current is small, it is possible to control it directly by cmos logic. fig12-7: the use of on/off control reg vsat on/off cont. control terminal voltage ((v cont ) on/off state v cont > 1.3v on v cont < 0.25v off parallel connected on/off control fig12-8: the example of parallel connected ic tk63142 tk63133 tk63115 4.2v 3.3v 1.5v on/off cont. v in v out the above figure is multiple regulators being controlled by a single on/off control signal. there is concern of overheating, because the power loss of the low voltage side ic (tk63115bb6) 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. 12-4. influence by light(tk631xxbb6) when tk631xxbb6(fc-4) is exposed to strong light, the electrical characteristics change. please confirm the influence by light in your design.
tk631xxbb6 gc3-o013 page 28 12-5. definition of term characteristics ? output voltage (v out ) the output voltage is specified with v in =(v outtyp +1v) and i out =5ma. ? maximum output current (i out, max ) the rated output current is specified under the condition where the output voltage drops to 90% of the value specified with i out =5ma. the input voltage is set to v outtyp +1v and the current is pulsed to minimize temperature effect. ? dropout voltage (v drop ) 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 output voltage, 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 v in =v out,typ +1v to v in =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 mi nimize temperature effects with the input voltage set to v in =v out,typ +1v. the load regulation is specified under an output current step condition of 5ma to 100ma. ? ripple rejection (rr) ripple rejection is the ability of the regulator to attenuate the ripple content of the input voltage at the output. it is specified with 500mv p-p , 1khz super-imposed on the input voltage, where v in =v out,typ +1.5v. ripple rejection is the ratio of the ripple content of the output vs. input and is expressed in db. ? standby current (i standby ) standby current is the current which flows into the regulator when the output is turned off by the control function (v cont =0v). protections ? over current sensor the over current sensor protects the device when there is excessive output current. it al so 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 prevent the loss of the regulator when this protection operates, by reducing the input voltage or providing better heat efficiency. ? esd mm : 200pf 0 150v or more hbm : 100pf 1.5k 2000v or more
tk631xxbb6 gc3-o013 page 29 13. package outline ? 4-bump flip chip : fc-4 m reference mount pad 4- 0.275 0.96 0.96 a 1 2 b mark 0.60 0.22 4- 0.30 ? + ? + ? + ? + ? + 0.05 a1 pin mark area 0.03 0.03 0.03 0.06 0.03 0.5 0.5 0.5 0.5 0.05 lead free mark lot no. unit : mm package structure and others base material : si mark method : laser terminal material : lead free solder bump country of origin : japan solder composition : sn-2.5ag mass : 0.0012g marking part number marking code part number marking code part number marking code tk63115bb6 e15 tk63128bb6 e28 tk63133bb6 e33 tk63116bb6 e16 tk63101bb6 e01 tk63135bb6 e35 tk63118bb6 e18 tk63129bb6 e29 tk63125bb6 e25 tk63130bb6 e30 tk63126bb6 e26 tk63131bb6 e31 tk63127bb6 e27 tk63132bb6 e32
tk631xxbb6 gc3-o013 page 30 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. z 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. z 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. z electrical instruments, equi pment 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 may. 2008. 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 righ ts 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

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