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r1114x series low noise 150ma ldo regulator no.ea-094-0512 1 outline the r1114x series are cmos-based voltage regulator ics with high output voltage accuracy, low supply current, low on-resistance, and high ripple rejection. each of these ics consists of a voltage reference unit, an error amplifier, resistor-net for voltage setting, a current limit circuit, and a chip enable circuit. these ics perform with low dropout voltage and a chip enable function. the line transient response and load transient response of the r1114x series are excellent, t hus these ics are very suitable for the power supply for hand-held communication equipment. the output voltage of these ics is fixed with high accuracy. since the packages for these ics are sot-23-5, sc-82ab, and son1612-6 therefore high density mounting of the ics on boards is possible. features ? low supply curr ent ............................................................. typ. 75 a ? standby mode ...................................................................... typ. 0.1 a ? low dropout voltage ............................................................ typ. 0.22v (i out =150ma 3.0v output type) ? high ripple rejectio n .......................................................... typ. 70db (f = 1khz 3.0v output type) ............................................................................................. typ. 60db (f = 10khz) ? low temperature-drift coeffici ent of output voltage........... typ. 100ppm/ c ? excellent line regula tion .................................................... typ. 0.02%/v ? high output vo ltage accu racy ............................................. 2.0% ? small packages ................................................................. sot-23-5/sc-82ab/son1612-6 ? output voltage ..................................................................... stepwise se tting with a step of 0.1v in the range of 1.5v to 4.0v is possible ? built-in fold back protecti on circuit .................................... typ. 40ma (c urrent at short mode) ? ceramic capacitors are recommended to be used with this ic ... c in = c out = 1 f (v out <2.5v) c in = 1 f, c out = 0.47 f (v out > = 2.5v) applications ? power source for portable communication equipment. ? power source for electrical appliances such as cameras, vcrs and camcorders. ? power source for battery-powered equipment.
r1114x 2 block diagrams r1114xxx1a r1114xxx1b vref current limit v dd 15 2 3 v out gnd ce v out gnd v dd ce vref current limit + - r1114xxx1d v out gnd v dd ce vref current limit + -
r1114x 3 selection guide the output voltage, version, and the taping type for the ics can be selected at the user?s request. the selection can be made with designating the part number as shown below; r1114xxx 1x-xx part number a b c d code contents a designation of package type: n: sot-23-5 d: son1612-6 q: sc-82ab b setting output voltage (v out ): stepwise setting with a step of 0.1v in the range of 1.5v to 4.0v is possible. c designation of active type: a: active low type b: active high type d: active high, with auto discharge d designation of taping type: ex. tr (refer to taping specifications ; tr type is the standard direction.)
r1114x 4 pin configuration sot-23-5 sc-82ab son1612-6 12 3 54 (mark side) 43 12 (mark side) 1 2 3 6 5 4 pin descriptions ? r1114q pin no. symbol description 1 ce or ce chip enable pin 2 gnd ground pin 3 v out output pin 4 v dd input pin ? r1114n pin no. symbol description 1 v dd input pin 2 gnd ground pin 3 ce or ce chip enable pin 4 nc no connection 5 v out output pin ? r1114d pin no. symbol description 1 v dd input pin 2 gnd ground pin 3 v out output pin 4 nc no connection 5 gnd ground pin 6 ce or ce chip enable pin
r1114x 5 absolute maximum ratings symbol item rating unit v in input voltage 6.5 v v ce input voltage ( ce or ce pin) 6.5 v v out output voltage ? 0.3~v in + 0.3 v i out output current 200 ma power dissipation (sot-23-5) ? 1 420 power dissipation (sc82-ab) ? 1 380 p d power dissipation (son1612-6) ? 1 500 mw topt operating temperature range ? 40~85 c tstg storage temperature range ? 55~125 c ? 1 for power dissipation, please refer to package information to be described.
r1114x 6 electrical characteristics ? r1114xxx1a topt = 25 c symbol item conditions min. typ. max. unit v out output voltage v in = set v out + 1v 1ma < = < = 0.980 1.020 v i out output current v in ? v out = 1.0v 150 ma ? v out / ? i out load regulation v in = set v out + 1v 1ma < = < = = set v out + 1v, i out = 0ma 75 95 a istandby supply current (standby) v in = set v out + 1v v ce = v dd 0.1 1.0 a ? v out / ? v in line regulation v out > 1.7v, set v out + 0.5v < = < = < = v in < = = 30ma 0.02 0.10 %/v rr ripple rejection f = 1khz f = 10khz ripple 0.5vp ? p v out > 1.7v, v in ? v out = 1.0v v out < = ? v out = 1.2v i out = 30ma 70 60 db v in input voltage 2.0 6.0 v ? v out / ? topt output voltage temperature coefficient i out = 30ma ? 40 c < = < = c 100 ppm / c ilim short current limit v out = 0v 40 ma r pu ce pull-up resistance 0.7 2.0 8.0 m ? v ceh ce input voltage ?h? 1.5 6.0 v v cel ce input voltage ?l? 0.0 0.3 v en output noise bw = 10hz to 100khz 30 vrms
r1114x 7 ? r1114xxx1b/d topt = 25 c symbol item conditions min. typ. max. unit v out output voltage v in = set v out + 1v 1ma < = < = 0.980 1.020 v i out output current v in ? v out = 1.0v 150 ma ? v out / ? i out load regulation v in = set v out + 1v 1ma < = < = = set v out + 1v, i out = 0ma 75 95 a istandby supply current (standby) v in = set v out + 1v v ce = gnd 0.1 1.0 a ? v out / ? v in line regulation v out > 1.7v, set v out + 0.5v < = < = < = v in < = = 30ma 0.02 0.10 %/v rr ripple rejection f = 1khz f = 10khz ripple 0.5vp ? p v out > 1.7v, v in ? v out = 1.0v v out < = ? v out = 1.2v i out = 30ma 70 60 db v in input voltage 2.0 6.0 v ? v out / ? t output voltage temperature coefficient i out = 30ma ? 40 c < = < = c 100 ppm / c i lim short current limit v out = 0v 40 ma r pd ce pull-down resistance 0.7 2.0 8.0 m ? v ceh ce input voltage ?h? 1.5 6.0 v v cel ce input voltage ?l? 0.0 0.3 v en output noise bw = 10hz to 100khz 30 vrms r low on resistance of nch for auto-discharge (only for d version) v ce = 0v 60 ?
r1114x 8 ? electrical characteristics by output voltage topt = 25 c dropout voltage v dif (v) output voltage v out (v) condition typ. max. v out = 1.5 0.38 0.70 v out = 1.6 0.36 0.65 v out = 1.7 0.34 0.60 1.8 < = v out < = 2.0 0.32 0.55 2.1 < = v out < = 2.7 0.28 0.50 2.8 < = v out < = 4.0 i out = 150ma 0.22 0.35 technical notes when using these ics, consider the following points: phase compensation in these ics, phase compensation is made for securing st able operation even if the load current is varied. for this purpose, use a capacitor c out with good frequency characteristics and esr (equivalent series resistance). (note: if additional ceramic capacitors are connected with parallel to the output pin with an output capacitor for phase compensation, the operation might be unstable. becaus e of this, test these ics with as same external components as ones to be used on the pcb.) pcb layout make v dd and gnd lines sufficient. if their impedance is hi gh, noise pickup or unstable operation may result. connect a capacitor with a capacitance value as much as 1.0 f or more between v dd and gnd pin, and as close as possible to the pins. set external components, especially t he output capacitor, as close as possi ble to the ics, and make wiring as short as possible.
r1114x 9 test circuits ce v out out gnd 1.0 f 1.0 f v dd in r1114xxx1b/d series i out ce v out out gnd 1.0 f 1.0 f v dd in r1114xxx1b/d series i ss fig.1 standard test circuit fig.2 supply current test circuit ce v out out gnd 1.0 f v dd in r1114xxx1b/d series i out p .g. ce v out out gnd i1 i2 1.0f 1.0 f v dd in r1114xxx1b/d series fig.3 ripple rejection, line transient fig.4 load transient response test circuit response test circuit
r1114x 10 typical applications r1114nxx1a series v out out in v dd gnd ce cap. cap. + + r1114xxx1b series v out out in v dd gnd ce cap. cap. + + (external components) output capacitor; ceramic 0.47 f (set output voltage in the range from 2.5 to 4.0v) ceramic 1.0 f (set output voltage in the range from 1.5 to 2.4v) input capacitor; ceramic 1.0 f typical characteristics 1) output voltage vs. output current (topt = 25 c) r1114x151x r1114x281x 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 output current i out (ma) output voltage v out (v) 0 400 300 200 100 2.5v 1.8v 2.0v v in =3.5v 3.0 2.5 2.0 1.5 1.0 0.5 0.0 output current i out (ma) output voltage v out (v) 0 400 300 200 100 3.5v 3.8v 3.1v v in =4.8v r1114x401x 4.5 3.5 4.0 3.0 2.0 2.5 1.5 1.0 0.5 0.0 output current i out (ma) output voltage v out (v) 0 400 300 200 100 4.5v 5.0v 4.3v v in =6.0v
r1114x 11 2) output voltage vs. input voltage (topt = 25 c) r1114x151x r1114x281x 1.7 1.3 1.4 1.5 1.6 1.1 1.2 1.0 input voltage v in (v) output voltage v out (v) 16 45 3 2 i out =1ma i out =30ma i out =50ma 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 26 5 4 3 input voltage v in (v) output voltage v out (v) i out =1ma i out =30ma i out =50ma r1114x401x 4.2 4.0 3.6 3.2 3.8 3.4 3.0 2 16 5 4 3 input voltage v in (v) output voltage v out (v) i out =1ma i out =30ma i out =50ma 3) supply current vs. input voltage (topt = 25 c) r1114x151x r1114x281x 70 60 90 80 50 40 30 20 10 0 supply current i ss ( a) 2 1 06 5 4 3 input voltage v in (v) 70 60 90 80 50 40 30 20 10 0 2 1 06 5 4 3 supply current i ss ( a) input voltage v in (v)
r1114x 12 r1114x401x 70 60 90 80 50 40 30 20 10 0 2 1 06 5 4 3 supply current i ss ( a) input voltage v in (v) 4) output voltage vs. temperature r1114x151x r1114x281x 1.53 1.52 1.51 1.50 1.49 1.48 1.47 1.46 temperature topt( c ) output voltage v out (v) 10 -15 -40 85 60 35 2.86 2.80 2.78 2.76 2.84 2.82 2.74 10 -15 -40 85 60 35 temperature topt( c ) output voltage v out (v) r1114x401x 4.08 4.06 4.04 4.02 4.00 3.98 3.96 3.94 3.92 10 -15 -40 85 60 35 temperature topt( c ) output voltage v out (v)
r1114x 13 5) supply current vs. temperature r1114x151x r1114x281x 90 80 70 60 50 40 30 20 10 0 temperature topt( c ) supply current i ss ( a) 10 -15 -40 85 60 35 90 80 70 60 50 40 30 20 10 0 supply current i ss ( a) 10 -15 -40 85 60 35 temperature topt( c ) r1114x401x 90 80 70 60 50 40 30 20 10 0 10 -15 -40 85 60 35 supply current i ss ( a) temperature topt( c ) 6) dropout voltage vs. temperature r1114x151x r1114x161x 0.6 0.5 0.4 0.3 0.2 0.1 0.0 output current i out ( ma ) dropout voltage v dif (v) 50 25 0 150 125 100 75 85 c 25 c -40 c 0.6 0.5 0.4 0.3 0.2 0.1 0.0 50 25 0 150 125 100 75 output current i out ( ma ) dropout voltage v dif (v) 85 c 25 c -40 c
r1114x 14 r1114x171x r1114x181x 0.6 0.5 0.4 0.3 0.2 0.1 0.0 50 25 0 150 125 100 75 output current i out ( ma ) dropout voltage v dif (v) 85 c 25 c -40 c 0.6 0.5 0.4 0.3 0.2 0.1 0.0 50 25 0 150 125 100 75 output current i out ( ma ) dropout voltage v dif (v) 85 c 25 c -40 c r1114x211x r1114x281x 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 50 25 0 150 125 100 75 output current i out ( ma ) dropout voltage v dif (v) 85 c 25 c -40 c 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 50 25 0 150 125 100 75 output current i out ( ma ) dropout voltage v dif (v) 85 c 25 c -40 c r1114x401x 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 50 25 0 150 125 100 75 output current i out ( ma ) dropout voltage v dif (v) 85 c 25 c -40 c
r1114x 15 7) dropout voltage vs. set output voltage (topt = 25 c) 0.60 0.40 0.50 0.20 0.10 0.30 0.00 set output voltage v reg ( v ) dropout voltage v dif (v) 2.0 1.5 1.0 4.0 3.5 3.0 2.5 10ma 30ma 50ma 150ma 8) ripple rejection vs. input bias voltage (topt = 25 c, c in = none, c out = ceramic0.47 f) r1114x281x r1114x281x 90 70 80 50 60 30 40 10 20 0 input voltage v in ( v ) ripple 0.2vp-p, i out =1ma ripple rejection rr(db) 3.0 2.9 3.3 3.2 3.1 f=1khz f=10khz f=100khz 90 70 80 50 60 30 40 10 20 0 ripple 0.5vp-p, i out =1ma 3.0 2.9 3.3 3.2 3.1 input voltage v in ( v ) ripple rejection rr(db) f=1khz f=10khz f=100khz r1114x281x r1114x281x 90 70 80 50 60 30 40 10 20 0 ripple 0.2vp-p, i out =30ma 3.0 2.9 3.3 3.2 3.1 input voltage v in ( v ) ripple rejection rr(db) f=1khz f=10khz f=100khz 90 70 80 50 60 30 40 10 20 0 ripple 0.5vp-p, i out =30ma 3.0 2.9 3.3 3.2 3.1 input voltage v in ( v ) ripple rejection rr(db) f=1khz f=10khz f=100khz
r1114x 16 r1114x281x r1114x281x 90 70 80 50 60 30 40 10 20 0 ripple 0.2vp-p, i out =50ma 3.0 2.9 3.3 3.2 3.1 input voltage v in ( v ) ripple rejection rr(db) f=1khz f=10khz f=100khz 90 70 80 50 60 30 40 10 20 0 ripple 0.5vp-p, i out =50ma 3.0 2.9 3.3 3.2 3.1 input voltage v in ( v ) ripple rejection rr(db) f=1khz f=10khz f=100khz 9) ripple rejection vs. frequency (c in = none) r1114x151x r1114x151x 90 70 80 50 60 30 40 10 20 0 frequency f( khz ) v in =2.5v dc +0.5vp-p, c out =ceramic 1.0 f 1 0.1 100 10 ripple rejection rr(db) i out =1ma i out =30ma i out =50ma 90 70 80 50 60 30 40 10 20 0 v in =2.5v dc +0.5vp-p, c out =ceramic 2.2 f 1 0.1 100 10 frequency f( khz ) ripple rejection rr(db) i out =1ma i out =30ma i out =50ma r1114x281x r1114x281x 90 70 80 50 60 30 40 10 20 0 v in =3.8v dc +0.5vp-p, c out =ceramic 0.47 f 1 0.1 100 10 frequency f( khz ) ripple rejection rr(db) i out =1ma i out =30ma i out =50ma 90 70 80 50 60 30 40 10 20 0 v in =3.8v dc +0.5vp-p, c out =ceramic 1.0 f 1 0.1 100 10 frequency f( khz ) ripple rejection rr(db) i out =1ma i out =30ma i out =50ma
r1114x 17 r1114x401x r1114x401x 90 70 80 50 60 30 40 10 20 0 v in =5.0v dc +0.5vp-p, c out =ceramic 0.47 f 1 0.1 100 10 frequency f( khz ) ripple rejection rr(db) i out =1ma i out =30ma i out =50ma 90 70 80 50 60 30 40 10 20 0 v in =5.0v dc +0.5vp-p, c out =ceramic 1.0 f 1 0.1 100 10 frequency f( khz ) ripple rejection rr(db) i out =1ma i out =30ma i out =50ma 10) input transient response (i out = 30ma, c in = none, tr = tf = 5 s, c out = ceramic 0.47 f) r1114x151x 1.55 1.54 1.53 1.52 1.51 1.50 1.49 4 3 2 1 0 time t( s) output voltage v out (v) input voltage v in (v) 10 0 20 405060708090100 30 input voltage output voltage r1114x281x 2.85 2.84 2.83 2.82 2.81 2.80 2.79 6 5 4 3 2 1 0 10 0 20 405060708090100 30 time t( s) output voltage v out (v) input voltage v in (v) input voltage output voltage
r1114x 18 11) load transient response (tr = tf = 0.5 s, c in = ceramic 1.0 f) r1114x151x v in =2.5v, c out =ceramic 1.0 f 1.75 1.70 1.65 1.60 1.55 1.50 1.45 150 100 50 0 output current i out (ma) 2 0 4 8 10 12 14 16 18 20 6 time t( s) output voltage v out (v) output current output voltage r1114x151x v in =2.5v, c out =ceramic 2.2 f 1.75 1.70 1.65 1.60 1.55 1.50 1.45 150 100 50 0 2 0 4 8 10 12 14 16 18 20 6 output current i out (ma) time t( s) output voltage v out (v) output current output voltage r1114x281x v in =3.8v, c out =ceramic 0.47 f 3.05 3.00 2.95 2.90 2.85 2.80 2.75 150 100 50 0 2 0 4 8 10 12 14 16 18 20 6 output current i out (ma) time t( s) output voltage v out (v) output current output voltage
r1114x 19 r1114x281x v in =3.8v, c out =ceramic 1.0 f 3.05 3.00 2.95 2.90 2.85 2.80 2.75 150 100 50 0 2 0 4 8 10 12 14 16 18 20 6 output current i out (ma) time t( s) output voltage v out (v) output current output voltage r1114x281x v in =3.8v, c out =ceramic 2.2 f 3.05 3.00 2.95 2.90 2.85 2.80 2.75 150 100 50 0 2 0 4 8 10 12 14 16 18 20 6 output current i out (ma) time t( s) output voltage v out (v) output current output voltage 12) turn-on/off speed with ce pin (d version) r1114x151d (v in = 2.5v, c in = ceramic 1.0 f, c out = ceramic 1.0 f) 4 0 1 2 3 6 2 3 0 1 4 5 time t( s ) ce input voltage v ce (v) output voltage v out (v) 5 0 -5 25 10 15 20 v in i out = 0ma i out = 30ma i out = 150ma 4 0 1 2 3 6 2 3 0 1 4 5 50 0 -50 450 100 150 200 250 300 350 400 time t( s ) ce input voltage v ce (v) output voltage v out (v) v in i out = 0ma i out = 30ma i out = 150ma
r1114x 20 r1114x281d (v in = 3.8v, c in = ceramic 0.47 f, c out = ceramic 0.47 f) 4 0 -1 1 2 3 8 4 5 0 3 2 1 6 7 0 5 10 15 20 25 -5 time t( s ) ce input voltage v ce (v) output voltage v out (v) v in i out = 0ma i out = 30ma i out = 150ma 4 0 -1 1 2 3 8 4 5 0 3 2 1 6 7 0 20406080 120 100 140 160 180 -20 time t( s ) ce input voltage v ce (v) output voltage v out (v) v in i out = 0ma i out = 30ma i out = 150ma r1114x401d (v in = 5.0v, c in = ceramic 0.47 f, c out = ceramic 0.47 f) 8 6 4 2 0 -2 14 12 10 8 6 4 2 0 -2 0 5 10 15 20 25 -5 time t( s ) ce input voltage v ce (v) output voltage v out (v) v in i out = 0ma i out = 30ma i out = 150ma 8 6 4 2 0 -2 14 12 10 8 6 4 2 0 -2 0 20 40 60 80 100 120 140 160 180 -20 time t( s ) ce input voltage v ce (v) output voltage v out (v) v in i out = 0ma i out = 30ma i out = 150ma
r1114x 21 esr vs. output current when using these ics, consider the following points: in these ics, phase compensation is made for securing st able operation even if the load current is varied. for this purpose, use a capacitor c out with good frequency characteristics and esr (equivalent series resistance) of which is in the range described as follows: gnd v out ce v in v in i out esr r1114xxx1b/d s.a. ceramic cap. ceramic cap. spectrum analyzer measuring circuit for white noise; r1114xxx1b/d the relations between i out (output current) and esr of an output ca pacitor are shown below. the conditions when the white noise level is under 40 v (avg.) are marked as the hatched area in the graph. (note: if additional ceramic capacitors are connected to the output pin with output capacitor for phase compensation, the operation might be unstable. because of this, test these ics with as same external components as ones to be used on the pcb.) (1) v in = v out + 1v (2) frequency band: 10hz to 2mhz (3) temperature: ? 40 c to 25 c r1114x151x r1114x161x 100 10 1 0.1 0.01 load current i out (ma) 060 30 150 120 esr ( ? ) 90 c in =ceramic 1.0 f, c out =ceramic 1.0 f 100 10 1 0.1 0.01 load current i out (ma) 060 30 150 120 esr ( ? ) 90 c in =ceramic 0.47 f, c out =ceramic 0.68 f
r1114x 22 r1114x211x r1114x281x 100 10 1 0.1 0.01 load current i out (ma) 060 30 150 120 esr ( ? ) 90 c in =ceramic 0.47 f, c out =ceramic 0.47 f 100 10 1 0.1 0.01 load current i out (ma) 060 30 150 120 esr ( ? ) 90 c in =ceramic 0.47 f, c out =ceramic 0.47 f

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