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[ap 115 3 adsxx ] rev. 0 . 0 - 1 - 2014/0 7 - preliminary - 1. genaral description the ap115 3 ads xx is a low dropout linear regulator with on /off control, which can supply 1 00ma load current. the ic is an integrated circuit with a silicon monolithic bipolar structure. the output voltage, trimmed with high accu racy, is available from 1.3 to 5 .0v in 0.1v steps. the output capacitor is available to use a smal l 0. 22 f ceramic capacitor . the over current, thermal and reverse bias protections are integrated, and also the package is smal l and thin type. the ic is designed for space saving requirements. 2. feature ? available to use a small 0. 22 f ceramic capacitor ? d ropout voltage v drop =1 6 0mv at 100ma ? output current 100ma ? high precision output voltage ? 1.5% or ? 50mv ? high r ipple rejection ratio 80db at 1khz 70db at 10khz ? wide operating voltage range 2.1 v to 14 .0 v ? very low quiescent current i qut = 75 ? a at i out =0ma ? o n/ o ff control ( high active) ? built - in short circuit protection , thermal shutdown ? built - in reverse bias over current protection ? available very low noise application ? very small surface mount package sot23 - 5 3. application ? automotive accessory equipment ? any electronic equipment ? battery powered systems ? mobile communication ap 1 15 3 adsxx 14v input / 1 00ma output ldo regulator
[ap 115 3 adsxx ] rev. 0 . 0 - 2 - 2014/0 7 4. table of contents 1. genaral description ................................ ................................ ................................ ................................ ........... 1 2. feature ................................ ................................ ................................ ................................ ................................ 1 3. application ................................ ................................ ................................ ................................ ......................... 1 4. table of contents ................................ ................................ ................................ ................................ ............... 2 5. block diagram ................................ ................................ ................................ ................................ ................... 3 6. ordering information ................................ ................................ ................................ ................................ ......... 4 7. pin configurations and functions ................................ ................................ ................................ ...................... 5 pin configurations ................................ ................................ ................................ ................................ ............ 5 functions ................................ ................................ ................................ ................................ .......................... 5 8. absolute maximum ratings ................................ ................................ ................................ .............................. 6 9. recommended operating conditions ................................ ................................ ................................ ................ 6 10. electri cal characteristics ................................ ................................ ................................ ................................ .... 7 electrical characteristics of ta=tj=25 ? c ................................ ................................ ................................ ........ 7 electrical characteristics of ta= - 40 ? c~85 ? c ................................ ................................ ................................ .. 9 11. description ................................ ................................ ................................ ................................ ....................... 11 11.1 dc characteristics ................................ ................................ ................................ ................................ .... 11 11.2 temperature characteristics ................................ ................................ ................................ ..................... 14 11.3 ripple rejec tion ................................ ................................ ................................ ................................ ....... 16 11.4 on/off transient ................................ ................................ ................................ ................................ ..... 17 11.5 on/off transient ................................ ................................ ................................ ................................ ..... 18 11.6 l ine transient ................................ ................................ ................................ ................................ ............ 19 11.7 output noise ................................ ................................ ................................ ................................ ............. 20 11.8 stability ................................ ................................ ................................ ................................ ..................... 21 11.9 ope rating region and power dissipation ................................ ................................ ................................ 23 11.10 on/off control ................................ ................................ ................................ ................................ ... 24 11.11 noise bypass ................................ ................................ ................................ ................................ ........ 25 11.12 the notes of the evaluation when output terminal is short - circuit to gnd ................................ .......... 25 12. definition of term ................................ ................................ ................................ ................................ ............. 26 13. recommended external circuits ................................ ................................ ................................ ..................... 27 external circuit ................................ ................................ ................................ ................................ ............... 27 test circuit ................................ ................................ ................................ ................................ ...................... 27 14. package ................................ ................................ ................................ ................................ ............................ 28 outline d imensions ................................ ................................ ................................ ................................ ........ 28 important notice ................................ ................................ ................................ ................................ .......... 29
[ap 115 3 adsxx ] rev. 0 . 0 - 3 - 2014/0 7 5. block diagram figure 1 . block diagram vin vout vcont gnd np bandgap reference over heat & over current protection vin vcont vout np gnd 500k control circuit 320k
[ap 115 3 adsxx ] rev. 0 . 0 - 4 - 2014/0 7 6. ordering information ap115 3 adsxx ta = - 40 to 85c sot23 - 5 ? output voltage code for product name, p lease check the below chart. please contact your authorized asahi kasei microdevices representative for voltage availability . ap115 3 ads xx table 1 . standard voltage version , output volt age & voltage code xx vout xx vout xx vout 18 1 . 8 28 2 . 8 33 3 . 3 21 2 . 1 30 3 . 0 50 5 . 0 table 2 . optional voltage version , output voltage & voltage code xx vout xx vout xx vout xx vout 13 1.3 24 2.4 36 3.6 45 4.5 14 1.4 25 2.5 3 7 3.7 46 4.6 15 1.5 26 2.6 38 3.8 47 4.7 16 1.6 27 2.7 39 3.9 48 4.8 17 1.7 29 2.9 40 4.0 49 4.9 19 1.9 31 3.1 41 4.1 20 2.0 32 3 . 2 42 4.2 22 2.2 34 3.4 43 4.3 23 2.3 35 3.5 44 4.4 o utput voltage code
[ap 115 3 adsxx ] rev. 0 . 0 - 5 - 2014/0 7 7. pin configurations and functions pin configurations function s pin no. pin description internal equivalent circuit description 1 vcont on/off control terminal vcont > 1.8v : on vcont < 0.35v : off the pull - down resister (500k ? ) is built - in. 2 gnd gnd terminal 3 n p noise byp a ss terminal connect a bypass capacitor between gnd. 4 v out output terminal 5 v in input terminal v in v out n p ( top view ) 5 4 3 2 1 gnd v cont 1 vcont 320k ? 500k ? np 3 vout vin vref 4
[ap 115 3 adsxx ] rev. 0 . 0 - 6 - 2014/0 7 8. absolute maximum ratings parameter symbol m in m ax unit condition supply voltage vcc max - 0.4 16 v reverse bias vrev max - 0.4 6 v vout Q 2.0v - 0.4 1 2 v 2.1v Q vout n p pin voltage vnp max - 0.4 5 v control pin voltage vcont max - 0.4 16 v junction temperature tj - 150 ? c storage temperature range t stg - 55 150 ? c power dissipation p d - 500 mw when mounted on pcb ( note 1 ) note 1 . please do derating with 4.0mw/ ? c at pd=500mw and 25 ? c or more. thermal resistance ( ? ja) = 250 ? c/w. warning : the maximum ratings are the absolute limitation values with the possibility of the ic b reakage. when the operation exceeds this standard quality cannot be guaranteed. 9. recommended operating conditions parameter symbol m in t yp m ax unit condition operating temperature range t a - 40 - 85 ? c operating voltage range v op 2.1 - 14 v
[ap 115 3 adsxx ] rev. 0 . 0 - 7 - 2014/0 7 10. electric al characteristics electrical characteristics of ta= tj=25 ? the parameters with min or max values will be guaranteed at ta=tj=25 ? c. ( v in = vout typ +1v,vcont=1.8v, ta =tj =25 ? c , unless otherwise specified. ) parameter symbol condition m in t yp m ax unit output voltage vout iout = 5ma ( table 3 , table 4 ) v line regulation linreg ? vin = 5v - 0.0 5.0 mv load regulation loareg iout = 5ma ~ 5 0ma ( table 3 , table 4 ) mv iout = 5ma ~ 1 00ma mv dropout voltage ( note 2 ) vdrop iout = 50ma - 90 160 mv iout = 100ma - 160 280 mv output current ( note 3 ) iout - - 100 ma maximum output current ( note 3 ) iout max vout=vout typ ? 0.9 150 200 - ma supply current icc iout = 0ma - 75 120 a standby current istandby vcont = 0v - 0.0 0.1 a quiescent current i q iout = 50ma - 1.5 2.7 ma control terminal control current icont vcont = 1.8v - 5.0 15.0 a control voltage vcont vout on state 1.8 - - v vout off state - - 0.35 v reference value np terminal voltage vnp - 1.26 - v output voltage / temp. vout/ta - 35 - ppm / ? c short circuit current i short - 200 - ma output noise voltage (vout typ =3.0v) vnoise cout=1.0 ? f, cnp=0.01 ? f iout=30ma - 38 - v rms ripple rejection (vout typ =3.0v) rr cout=1.0 ? f, cnp=0.001 ? f iout =10ma, f=1khz - 80 - db f=10khz - 70 - db rise time (vout typ =3.0v) tr cout=1.0 ? f, cnp=0.001 ? f vcont: pulse wave (100hz) vcont on vout ? 95% point - 35 - s note 2 . for vout ? 2.0v , no regulations. note 3 . the maximum output current is limited by power dissipation. general note: parameter with only typical value is for reference only.
[ap 115 3 adsxx ] rev. 0 . 0 - 8 - 2014/0 7 table 3 . standard voltage version part number output voltage load regulation iout = 5 0ma iout = 1 00ma min typ max min typ typ min v v v v v mv m v ap1153ads18 1.750 1.800 1.850 5 12 11 26 ap1153ads21 2.050 2.100 2.150 5 12 12 28 ap1153ads28 2.750 2.800 2.850 6 14 14 34 ap1153ads30 2.950 3.000 3.050 6 15 15 35 ap1153ads33 3.250 3.300 3.350 7 16 16 37 ap1153ads50 4.925 5.000 5.075 9 20 21 50 table 4 . optional voltage version part number output voltage load regulation iout = 5 0ma iout = 1 00ma min typ max min typ typ min v v v v v mv m v ap1153ads13 1.250 1.300 1.350 5 10 10 22 ap1153ads14 1.350 1.400 1.450 5 10 10 23 ap1153ads15 1.450 1.500 1.550 5 11 10 24 ap1153ads16 1.550 1.600 1.650 5 11 11 25 ap1153ads17 1.650 1.700 1.750 5 11 11 25 ap1153ads19 1.850 1.900 1.950 5 12 11 27 ap1153ads20 1.950 2.000 2.050 5 12 12 28 ap1153ads22 2.150 2.200 2.2 50 6 13 12 29 ap1153ads23 2.250 2.300 2.350 6 13 13 30 ap1153ads24 2.350 2.400 2.450 6 13 13 31 ap1153ads25 2.450 2.500 2.550 6 14 13 31 ap1153ads26 2.550 2.600 2.650 6 14 14 32 ap1153ads27 2.650 2.700 2.750 6 14 14 33 ap1153ads29 2.850 2.900 2.950 6 15 15 34 ap1153ads31 3.050 3.100 3.150 7 15 15 36 ap1153ads32 3.150 3.200 3.250 7 15 16 37 ap1153ads34 3.349 3.400 3.451 7 16 16 38 ap1153ads35 3.447 3.500 3.553 7 16 16 39 ap1153ads36 3.546 3.600 3.654 7 17 17 40 ap1153ads37 3.644 3.700 3.756 7 17 17 40 ap1153ads38 3.743 3.800 3.857 7 17 17 41 ap1153ads39 3.841 3.900 3.959 8 17 18 42 AP1153ADS40 3.940 4.000 4.060 8 18 18 43 ap1153ads41 4.038 4.100 4.162 8 18 18 43 ap1153ads42 4.137 4.200 4.263 8 18 19 44 ap1153ads43 4.235 4.300 4.365 8 18 19 4 5 ap1153ads44 4.334 4.400 4.466 8 19 19 46 ap1153ads45 4.432 4.500 4.568 8 19 20 46 ap1153ads46 4.531 4.600 4.669 8 19 20 47 ap1153ads47 4.629 4.700 4.771 8 20 20 48 ap1153ads48 4.728 4.800 4.872 9 20 21 49 ap1153ads49 4.826 4.900 4.974 9 20 21 49
[ap 115 3 adsxx ] rev. 0 . 0 - 9 - 2014/0 7 electrical characteristics of ta = - 40 ? ? the parameters with min or max value s will be guaranteed at ta=tj= - 40 ~ 85 ? c . ( v in =vout typ +1v,vcont=1.8v,ta= - 40 ~ 85 ? c , unless otherwise specified. ) parameter symbol condition m in t yp m ax unit output voltage vout iout = 5ma ( table 5 , table 6 ) v line regulation linreg ? vin = 5v 0.0 8.0 mv load regulation loareg iout = 5ma ~ 5 0ma ( table 5 , table 6 ) mv iout = 5ma ~ 1 00ma mv dropout voltage ( note 4 ) vdrop iout = 50ma 90 205 mv iout = 100ma 160 360 mv output current ( note 5 ) iout 100 ma maximum output current ( note 5 ) iout max vout=vout typ ? 0.9 135 200 - ma supply current icc iout = 0ma 75 145 a standby current istandby vcont = 0v 0.0 0.5 a quiescent curr ent iq iout = 50ma 1.5 3.3 ma control terminal control current icont vcont = 1.8v - 5.0 15.0 a control voltage vcont vout on state 1.8 - - v vout off state - - 0.35 v reference value np terminal voltage vnp 1.26 v output voltage / temp. vout/ ta 35 ppm / ? c short circuit current i short 200 ma output noise voltage (vout typ =3.0v) vnoise cout=1.0 ? f, cnp=0.01 ? f iout=30ma 38 v rms ripple rejection (vout typ =3.0v) rr cout=1.0 ? f, cnp=0.001 ? f iout =10ma, f=1khz 80 db f=10khz 70 db rise time (vout typ =3.0v) tr cout=1.0 ? f, cnp=0.001 ? f vcont: pulse wave (100hz) vcont on vout ? 95% point 35 s note 4 . for vout ? 2.0v , no regulations. note 5 . the maximum output current is limited by power dissi pation. general note: parameter with only typical value is for reference only.
[ap 115 3 adsxx ] rev. 0 . 0 - 10 - 2014/0 7 table 5 . standard voltage version part number output voltage load regulation iout = 5 0ma iout = 1 00ma min typ max min typ typ min v v v v v mv m v ap1153ads18 1.720 1.800 1.880 5 14 11 29 ap1153ads21 2.020 2.100 2.180 5 14 12 31 ap1153ads28 2.720 2.800 2.880 6 16 14 37 ap1153ads30 2.920 3.000 3.080 6 17 15 38 ap1153ads33 3.217 3.300 3.383 7 18 16 40 ap1153ads50 4.875 5.000 5.125 9 22 21 5 5 table 6 . optional voltage version part number output voltage load regulation iout = 5 0ma iout = 1 00ma min typ max min typ typ min v v v v v mv m v ap1153ads13 1.220 1.300 1.380 5 12 10 25 ap1153ads14 1.320 1.400 1.480 5 12 10 26 ap1153ads15 1.420 1.500 1.580 5 13 10 27 ap1153ads16 1.520 1.600 1.680 5 13 11 28 ap1153ads17 1.620 1.700 1.780 5 13 11 28 ap1153ads19 1.820 1.900 1.980 5 14 11 30 ap1153ads20 1.920 2.000 2.080 5 14 12 31 ap1153ads22 2.120 2.200 2.280 6 15 1 2 32 ap1153ads23 2.220 2.300 2.380 6 15 13 33 ap1153ads24 2.320 2.400 2.480 6 15 13 34 ap1153ads25 2.420 2.500 2.580 6 16 13 34 ap1153ads26 2.520 2.600 2.680 6 16 14 35 ap1153ads27 2.620 2.700 2.780 6 16 14 36 ap1153ads29 2.820 2.900 2.980 6 17 15 37 ap1153ads31 3.020 3.100 3.180 7 17 15 39 ap1153ads32 3.120 3.200 3.280 7 17 16 40 ap1153ads34 3.312 3.400 3.488 7 18 16 41 ap1153ads35 3.412 3.500 3.588 7 18 16 42 ap1153ads36 3.510 3.600 3.690 7 19 17 43 ap1153ads37 3.605 3.700 3.795 7 19 17 43 ap 1153ads38 3.705 3.800 3.895 7 19 17 44 ap1153ads39 3.805 3.900 3.995 8 19 18 45 AP1153ADS40 3.900 4.000 4.100 8 20 18 46 ap1153ads41 3.986 4.100 4.214 8 20 18 47 ap1153ads42 4.085 4.200 4.315 8 20 19 48 ap1153ads43 4.184 4.300 4.416 8 20 19 49 ap1153 ads44 4.283 4.400 4.517 8 21 19 50 ap1153ads45 4.382 4.500 4.618 8 21 20 50 ap1153ads46 4.481 4.600 4.719 8 21 20 51 ap1153ads47 4.580 4.700 4.820 8 22 20 52 ap1153ads48 4.679 4.800 4.921 9 22 21 54 ap1153ads49 4.777 4.900 5.023 9 20 21 54
[ap 115 3 adsxx ] rev. 0 . 0 - 11 - 2014/0 7 11. descriptio n 11.1 dc characteristics ? ? in iout=0ma ? ? ? cnp 0.001 ? f cout 1.0 ? f iout=5ma cin 1.0 ? f vcont 1.8v vin =vout typ +1v vin vout vcont np 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 0 2 4 6 8 10 12 14 16 vin (v) iin (ma) vout= 1.5,2.0,3.0,4.0,5.0v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 0 50 100 150 200 250 300 iout (ma) vout (v) 5.0v 4.0v 3.0v 2.0v 1.5v vout=
[ap 115 3 adsxx ] rev. 0 . 0 - 12 - 2014/0 7 ? ? ? ? ? ? 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 50 100 iout (ma) ignd (ma) cnp 0.001 ? f cout 1.0 ? f iout=5ma cin 1.0 ? f vcont 1.8v vin =vout typ +1v vin vout vcont np -160 -140 -120 -100 -80 -60 -40 -20 0 0 50 100 iout (ma) vdrop (mv) 1.e-11 1.e-10 1.e-09 1.e-08 1.e-07 1.e-06 0 2 4 6 8 10 12 14 16 vin (v) istanby (a)
[ap 115 3 adsxx ] rev. 0 . 0 - 13 - 2014/0 7 ? in regulation point 2.1v ? ? in regulation point vouttyp=1.5v ? in regulation point vouttyp=2. 0v ? in =0v, vcont=0v test conditions cnp 0.001 ? f cout 1.0 ? f iout=5ma cin 1.0 ? f vcont 1.8v vin =vout typ +1v vin vout vcont np 1.34 1.36 1.38 1.40 1.42 1.44 1.46 1.48 1.50 1.52 1.54 1.5 1.6 1.7 1.8 1.9 2.0 vin (v) vout (v) iout=0,50,100ma 1.84 1.86 1.88 1.90 1.92 1.94 1.96 1.98 2.00 2.02 2.04 1.8 1.9 2.0 2.1 2.2 2.3 vin (v) vout (v) iout=0,50,100ma cnp 0.001 ? f cout 1.0 ? f vin=0v cin 1.0 ? f vcont 0v vrev vin vout vcont np irev
[ap 115 3 adsxx ] rev. 0 . 0 - 14 - 2014/0 7 11.2 temperature characteristics ? ? ? ? ? ? ? -40 -30 -20 -10 0 10 20 -40 -20 0 20 40 60 80 100 t a vout (mv) 35.15 ppm/ cnp 0.001 ? f cout 1.0 ? f iout=5ma cin 1.0 ? f vcont 1.8v vin =vout typ +1v vin vout vcont np 0 50 100 150 200 250 -40 -20 0 20 40 60 80 100 ta( ) ioutpeak(ma) 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 -40 -20 0 20 40 60 80 100 t a(c) ignd(ma) iout=100ma iout=50ma iout=30ma 0 50 100 150 200 250 300 -40 -20 0 20 40 60 80 100 t a(c) vdrop(mv) iout=100ma iout=50ma iout=30ma
[ap 115 3 adsxx ] rev. 0 . 0 - 15 - 2014/0 7 ? ? ? in = 5v ? ? -60 -50 -40 -30 -20 -10 0 -40 -20 0 20 40 60 80 100 t a( ) loareg(mv) iout=30ma iout=50ma iout=100ma -20 -15 -10 -5 0 5 10 15 20 -40 -20 0 20 40 60 80 100 t a( ) linreg(mv) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 -40 -20 0 20 40 60 80 100 ta vcont(v) vout_on vout_off
[ap 115 3 adsxx ] rev. 0 . 0 - 16 - 2014/0 7 11.3 ripple rejection ? ? ? ? ? ? ? ? ? ? ? ? ? in : frequency=1khz the ripple rejection (r.r) characteristic depends on the characteristic and the capacitance of the output capacitor. the r . r ch aracteristic at 50khz or more varies greatly with the capacitor on the output side and pcb pattern. p lease check stability during operation. c o u t = 0 . 2 2 ? 0.47 ? f 1.0 ? f 2.2 ? f c n p = 0 . 0 0 1 ? ? ? 50ma 20ma 10ma cnp 0.001 ? f cout iout=10ma vcont 1.8v vin(dc)=vout typ +1.5v f=100hz ?? 1mhz 200mvp-p vripple vin vout vcont np 1.0 ? f -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 20 40 60 80 100 iout (ma) ripple rejection (db) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 0.2 0.4 0.6 0.8 1 vin-vout(typ) (v) ripple rejection (db) iout=100ma iout=50ma iout=20ma iout=10ma iout=1ma
[ap 115 3 adsxx ] rev. 0 . 0 - 17 - 2014/0 7 11.4 on/off transient test conditions ? ? ? ? ? ? ? ? ? ? ? ? ?rg cout cnp ??W?? ?rg cout cnp ?rg cout ? ?rg vout 95% vcont vout time voltage cnp cout 1.0 ? f iout=30ma cin 1.0 ? f vin =vout typ +1v vcont=0v ? 2v (f=100hz) vin vout vcont np 0.001 ? f
[ap 115 3 adsxx ] rev. 0 . 0 - 18 - 2014/0 7 11.5 on/off transient test conditions ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? increase the load side capacitor when the load change is fast or when there is a large current change. in addition, at no load, supplying small load current to ground can reduce the voltage change. cnp cout cin 1.0 ? f vcont 1.8v vin =vout typ +1v iout on ? off 0.001 ? f 1.0 ? f vin vout vcont np
[ap 115 3 adsxx ] rev. 0 . 0 - 19 - 2014/0 7 11.6 line transient ? ? ? ? test conditions ? ? ? ? ? ? ? cnp cout 1.0 ? f iout=30ma vcont 1.8v vin =vout typ +1v ? + 2v 0.001 ? f vin vout vcont np
[ap 115 3 adsxx ] rev. 0 . 0 - 20 - 2014/0 7 11.7 output noise ? test conditions ? ? increase cnp to decrease the noise. the recommended cnp capacitance is 0.01 ? f ? 0.1 ? f. the amount of noise increases with the higher output voltage s . 0 10 20 30 40 50 60 70 80 1.0 2.0 3.0 4.0 5.0 vout(typ) (v) noise (uvrms) cnp 0.01 ? f cout 1.0 ? f iout=30ma cin 1.0 ? f vcont 1.8v vin =vout typ +1v bpf=400hz ?? 80khz vin vout vcont np 0 50 100 150 200 250 300 1p 10p 100p 1000p 0.01u 0.1u cnp (f) noise (uvrms) cout=0.22uf cout=0.47uf cout=1.0uf cout=2.2uf 20 25 30 35 40 45 50 55 60 65 70 0 20 40 60 80 100 iout (ma) noise (uvrms) cout=0.22uf cout=0.47uf cout=1.0uf cout=2.2uf
[ap 115 3 adsxx ] rev. 0 . 0 - 21 - 2014/0 7 11.8 stability linear regulators require input and output capacitors in order to maintain the regula tor's loop stability. if 0.22 f or larger capacitor is connected to the output pin , t he ic provides stable operation at any voltage (1.3v vouttyp 5.0v). (the capacitor must be larger th a n 0.22 f at all temperature and voltage range . ) if the capacitor with high equivalent series resistance (esr) is used, such as tantalum capacitor etc., th e regulator may oscillate. please select parts with low esr. due to the parts are uneven, please enlarge the capacitance as much as possible. with larger capacity, the output noise decreases more. in addition, the response to the load change, etc. can be i mproved. the ic wont be damaged by enlarging the capacity. a recommended value o f the application is cin=cout 0.47 f ceramic capacitance . figure 2 . recommended value cout=0.1 ? f cout=0.22 ? f 1.5v ? vout typ ? 5.0v figure 3 . stable operation area , output current and esr figure 3 shows stable operation with a ceramic capacitor of 0.22 ? f. since it may oscillate if esr is large, we recommend using ceramic capacitor. the stability of the regulator improves with larger output capacitor (the stable operation area extends .) please use the capacitor with larger capacitance as possible. for evaluation kyocera: cm05b104k10ab, cm05b224k10ab, cm105b104k16a, cm105b224k16a, cm21b225k10a murata: grm36b104k10, grm42b104k10, grm39b104k25, grm39b22 4k10, grm39b105k6.3 ap1153ads xx cin ? 0.47 ? f vin vout cout ? 0.47 ? f cnp ? 0.001 ? f gnd 0.01 0.1 1 10 100 0 20 40 60 80 100 iout (ma) esr ( ) s table area unstable area unstable area
[ap 115 3 adsxx ] rev. 0 . 0 - 22 - 2014/0 7 the input capacitor is necessary in case the battery voltage drops, the power supply impedance increases, or the dis tance to the power supply is long . one input capacitor might be necessary for each ic or for several ics. it depends on circuit condition. please confirm the stability by each circuit. figure 4 . example ceramic capacitance vs. bias voltage, temperature generally, a ceramic capacitor has both temperature characteristic and voltage characteris tic. please consider both characteristics when selecting the part. the b curve s are the recommend characteristics.
[ap 115 3 adsxx ] rev. 0 . 0 - 23 - 2014/0 7 11.9 operating region and power dissipation the power dissipation of the device depends on the junction temperature. therefore, the package di ssipation is assumed to be an internal limitation. the package itself does not have enough heat radiation characteristic due to the small size. heat runs away by mounting ic on pcb. this value changes by the material , copper pattern etc. of pcb. the overhe ating protection operates when there is a lot of loss inside the regulator ( ambient temperature high, heat radiation bad , etc. ). the output current and the output voltage will drop when the protection circuit operates. when joint temperature (tj) reaches t he set temperature, ic stops the operation. however, operation begins at once when joint temperature (tj) decreases. the thermal resistance when mounted on pcb the chip j unction temperature during operation is shown by tj= japd+ta. j unction temperature (tj) is limited around 1 5 0c by the thermal protection circuit. pd is the value when the overheating protection circuit starts operation. when you assume t he ambient temperature to be 25 c, 1 5 0 = ja pd(w) + 25 ja pd = 1 2 5 ja = 1 2 5/pd (c /w) figure 5 . example pcb layout pcb material: two layer glass epoxy substrate (x=30mm,y=30mm,t=1.0mm,copper pattern thickness 35um) ap1153ads xx (sot23 - 5) please derate 5. 4 mw/ c at pd=677mw above 25 c . thermal resistance ( ja) is 1 85 c/w. method of obtaining pd easily connect output terminal to gnd (short circuited), and measure the input current by increasing the input voltage gradually up to 10v. the input current will reach the maximum output curren t, but will decrease soon according to the chip temperature rising, and will finally enter the state of thermal equilibrium (natural air cooling). the input current and the input voltage of this state will be used to calculate the pd. pd(mw) vin (v) i in (ma) when the device is mounted, mostly achieve : 5 0 0mw or more
[ap 115 3 adsxx ] rev. 0 . 0 - 24 - 2014/0 7 procedure (when mounted on pcb). 1.find pd (vin iin when the output is short - circuited). 2. plot pd against 25 c. 3. connect pd to the point correspon ding to the 1 5 0 c with a straight line. 4. pull a vertical line from the maximum operating tempe rature in your design (e.g., 75 c). 5. read the value of pd against the point at which the vertical line intersects the derating curve(dpd). 6.dpd / (vinmax - vou t) = iout (at 75 c) the maximum output current at the highest opera ting temperature will be iout dpd / (vinmax - vout). please use the device at low temperature with better radiation. the lower temperature provides better quality. 11.10 o n/off control it is recommended to turn the regulator off when the circuit following the regulator is not operating. a design with small electric power loss can be implemented. because the control current is small, it is possible to control it directly by cmos logic. control terminal voltage (vcont ) on/off state vcont > 1.8v on vcont < 0.35v off parallel connected on/off control figure 6 . parallel connection example figure 6 shows the 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 (ap1153ads20) is large. the series resistor (r) is put in the input line of the low output volt age 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 p ower dissipation in the device. when the thermal sensor works, a decrease of the output voltage, oscillation, etc. may be observed. 2.0v 5v 3.3v on/off cont. v in ap1153ads50 r vout ap1153ads 33 ap1153ads 20 dpd 150 25 50 100 pd(mw) 140 ? c pd 0 0 75 ? c ta(c) 2 3 4 d pd 5
[ap 115 3 adsxx ] rev. 0 . 0 - 25 - 2014/0 7 11.11 noise bypass the noise characteristics depend on the capacitance on the np terminal. a standard value is cnp=0.001 f. increase cnp in a design with impor tant output noise requirements. the ic will not be damaged even 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. 11.12 the notes of the e valua tion when output terminal is short - circuit to gnd by the resonance phenomenon by cout (c ingredient) and the short circuit line (l ingredient), which are attached to an output terminal, an output terminal changes with minus potential. in order that parasi tism tr arises within the ic, and a latch rise phenomenon may occur within ic when the worst if it goes into an output terminal's minus side, it results in damage by fire (white smoke) and breakage of a package. (f0 = 1 / 2 (l c)) the above - mentioned res onance phenomenon appears notably in a ceramic capacitor with the small esr value, etc. a resonance phenomenon can be reduced by connecting resistance (around 2ohms or more) in series with a short circuit line. thereby, the latch rise phenomenon within ic can be prevented. generally, when using tantalum or large electrolysis capacitor, the influence of resonance phenomenon can be reduced due to the large esr (2ohms or more).
[ap 115 3 adsxx ] rev. 0 . 0 - 26 - 2014/0 7 12. definition of term relating characteristic note each characteristics will be meas ured in a short period not to be influenced by joint temperature (tj). ?output voltage (vout) the output voltage is specified with vin= vouttyp+1v and iout=5ma ?output current (iout) output current, which can be used continuously (it is the range where ove rheating protection of the ic does not operate.) ?peak maximum output current (ioutpeak) the rated output current is specified under the condition where the output voltage drops 90% by increasing the output current, compared to the value specified at vin=v outtyp+1v. ?dropout voltage (vdrop) it is an i/o voltage difference when the circuit stops the stable operation by decreasing the input voltage.it is measured when the output voltage drops 100mv from its nominal value by decreasing the input voltage gradua lly. ?line regulation (linreg) it is the fluctuations of the output voltage value when the input voltage is changed. ?load regulation (loareg) it is the fluctuations of the output voltage value when the input voltage is assumed to be vouttyp +1v, and the l oad current is changed. ?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 measured with the condition of vin=vout+1.5v. ripple rejection is the ratio of th e rippl e content between the output vs input and is expressed in db. ?standby current (istandby) it is an input current, which flows to the control terminal, when the ic is turned off. relating protection circuit ?over current protection it is a function to protect the ic by limiting the output current when excessive current flows to ic, such as the output is connected to gnd, etc. ?thermal protection it protects the ic not to exceed the permissible power consumption of the package in case of large power l oss inside the regulator. temperature of the chip decreases. ?reverse voltage protection reverse voltage protection prevents damage due to the output voltage being higher than the input volt age. 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 . generally, a ldo regulator has a diode in the input dir ection from an output. if an input falls from an output in an input - gnd short circuit etc. and this diode turns on, current will flow for an input terminal from an output terminal. in the case of excessive current, ic may break.in order to prevent thi s, it is necessary to connect a schottky diode etc. outside. this product is equipped with reverse bias over - current prevention, and excessive current does not flow in to ic. therefore, no need to connect diode outside. ? esd mm: 200pf 0 ? 200v or more hbm: 100 pf 1.5k ? 2000v or more vin vout
[ap 115 3 adsxx ] rev. 0 . 0 - 27 - 2014/0 7 13. recommended external circuits external circuit figure 7 . external circuit test circuit figure 8 . test circuit cl= 0.22 f cl= 1.0 f vcont cin= 0.1 f f in cont. v in vout gnd np to loa d 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
[ap 115 3 adsxx ] rev. 0 . 0 - 28 - 2014/0 7 14. package outline dimens ions uni t: mm 2 . 9 1 . 6 1 . 1 0 . 1 2 5 0 . 4 2 . 8 0 ~ 0 . 1 5 0 . 1 0 . 2 5 4 1 3 + 0 . 1 0 ? 0 . 0 5 0 . 4 0 . 2 + ? + ? + ? 0 . 9 5 0 . 9 5 r 3 3 m a r k l o t n o . x x x 0 . 1 + ? + 0 . 2 ? 0 . 1 + 0 . 2 ? 0 . 3
[ap 115 3 adsxx ] rev. 0 . 0 - 29 - 2014/0 7 important notice 0. asahi kasei microdevices corporation (akm) reserves the right to make changes to the information contained in this document without notice. when you consider any use or applicatio n of akm product stipulated in this document ( product ) , please make inquiries the sales office of akm or authorized distributor s as to current status of the products. 1. all information included in this document are provided only to illustrate the operat ion and application examples of akm products . akm neither makes warranties or representations with respect to the accuracy or completeness of the information contained in this document nor grants any license to any intellectual property rights or any other rights of akm or any third party with respect to the information in this document. you are fully responsible for use of such information contained in this document in your product design or applications . akm assumes no liability for any losses incurred by you or third parties arising from the use of such information in your product design or applications. 2. the product is neither intended nor warranted for use in equipment or systems that require extraordinarily high levels of quality and/or reliability and/or a malfunction or failure of which may cause loss of human life, bodily injury, serious property damage or serious public impact , including but not limited to, equipment used in nuclear facilities, equipment used in the aerospace industry, medical eq uipment, equipment used for automobiles, trains, ships and other transportation, traffic signaling equipment, equipment used to control combustions or explosions, safety devices, elevators and escalators, devices related to electric power, and equipment us ed in finance - related fields. do not use product for the above use unless specifically agreed by akm in writing . 3. though akm works continually to improve the products quality and reliability, you are responsible for complying with safety standards and f or providing adequate designs and safeguards for your hardware, software and systems which minimize risk and avoid situations in which a malfunction or failure of the product could cause loss of human life, bodily injury or damage to property, including da ta loss or corruption. 4. do not use or otherwise make available the product or related technology or any information contained in this document for any military purposes, including without limitation, for the design, development, use, stockpiling or manuf acturing of nuclear, chemical, or biological weapons or missile technology products (mass destruction weapons). when exporting the p roducts or related technology or any information contained in this document, you should comply with the applicable export co ntrol laws and regulations and follow the procedures required by such laws and regulations. the p roducts and related technology may not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under any applica ble domestic or foreign laws or regulations. 5. please contact akm sales representative for details as to environmental matters such as the rohs compatibility of the product. please use the product in compliance with all applicable laws and regulations tha t regulate the inclusion or use of controlled substances, including without limitation, the eu rohs directive. akm assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. 6. resale of the product with provisions different from the statement and/or technical features set forth in this document shall immediately void any warranty granted by akm for the product and shall not create or extend in any manner whatsoever , any liabi lity of akm. 7. this document may not be reproduced or duplicated, in any form, in whole or in part, without prior written consent of akm .

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