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r1180x series 150ma ldo regulator no.ea-105-111027 1 outline the r1180x series are cmos-based voltage regulator ics with high output voltage accuracy, extremely low supply current, and low on-resistance. each of these ics consists of a voltage reference unit, an error amplifier, resistor-net for voltage setting, a current limit circuit which prevents the dest ruction by excess current, and so on. the output voltage of these ics is fixed with high accu racy. b version has a chip enable pin, therefore ultra-low consumption current standby mode can be realized with the pin. since the packages for these ics are sot-23-5 (r1180n series), sc-82ab (r1180q series), and son1612-6 (r1180d series), therefore high density mount ing of the ics on boards is possible. features ? supply curre nt ......................................................... typ. 1 a (except the current through ce pull-down circuit) ? standby mode .......................................................... typ. 0.1 a ? dropout voltage ....................................................... typ. 0.25v (i out = 150ma 3.0v output type) ? temperature-drift coefficient of output voltage ...... typ. 100ppm/ c ? line regulation ........................................................ typ. 0.05%/v ? output voltage accuracy.......................................... 2.0% ? packages ................................................................ son1612-6, sc-82ab, sot-23-5 ? output voltage range.............................................. 1.2v to 3.6v (0.1v steps) ( for other voltages, please refer to mark informations.) ? built-in fold back protection circuit ........................ typ. 40ma (current at short mode) ? ceramic capacitors are recommend ed to be used with this ic .....0.1 f applications ? stable voltage reference. ? power source for electrical appliances such as cameras, vcrs and camcorders. ? power source for battery-powered equipment.
r1180x 2 block diagrams r1180xxx1b r1180xxx1c v dd v out gnd vref current limit ce v dd v out gnd vref current limit selection guide the output voltage, ce pin polarity, package, etc. fo r the ics can be selected at the user?s request. product name package quantity per reel pb free halogen free r1180dxx1 -tr-fe son1612-6 4,000 pcs yes yes r1180qxx1 -tr-fe sc-82ab 3,000 pcs yes yes r1180nxx1 -tr-fe sot-23-5 3,000 pcs yes yes xx : the output voltage can be designated in the rang e from 1.2v(12) to 3.6v(36) in 0.1v steps. (for other voltages, please refer to mark informations.) : ce pin polarity are options as follows. (b) "h" active (c) without ce pin
r1180x 3 pin configuration z son1612-6 z sc-82ab z sot-23-5 1 2 3 6 5 4 43 12 (mark side) (mark side) 2 1 3 5 4 pin descriptions x son1612-6 pin no symbol pin 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 nc chip enable pin or no connection x sc-82ab pin no symbol pin description 1 ce or nc chip enable pin or no connection 2 gnd ground pin 3 v out output pin 4 v dd input pin x sot -23-5 pin no symbol pin description 1 v dd input pin 2 gnd ground pin 3 ce or nc chip enable pin or no connection 4 nc no connection 5 v out output pin
r1180x 4 absolute maximum ratings symbol item rating unit v in input voltage 6.5 v v ce input voltage (ce pin) 6.5 v v out output voltage ? 0.3 to v in + 0.3 v i out output current 180 ma power dissipation (son1612-6)* 500 power dissipation (sc-82ab)* 380 p d power dissipation (sot-23-5)* 420 mw topt operating temperature range ? 40 to 85 c tstg storage temperature range ? 55 to 125 c ? ) for power dissipation, please refer to package information. absolute maximum ratings electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages and may degrade the life time and safety for both device and sy stem using the device in the field. the functional operation at or over these absolute maximum ratings is not assured. recommended operating conditions (electrical characteristics) all of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. the semiconductor devices cannot operate normally over the recommended operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. and the semiconductor de vices may receive serious damage when they continue to operate over the recommended operating conditions.
r1180x 5 electrical characteristics ? r1180xxx1b/c topt = 25 c symbol item conditions min. typ. max. unit v out output voltage v in = set v out + 1v 1 a i out 30ma 0.980 1.020 v i out output current v in ? v out = 1.0v(v out 1.5v) v in = 2.4v(v out <1.5v) 150 ma v out / i out load regulation v in ? v out = 1.0v(v out 1.5v) v in = 2.4v(v out <1.5v) 1 a i out 150ma 20 40 mv v dif dropout voltage refer to the electrical characteristics by output voltage i ss supply current v in ? v out = 1.0v,i out = 0ma 1.0 1.5 a istandby supply current (standby) v in ? v out = 1.0v,v ce = gnd 0.1 1.0 a v out / v in line regulation i out = 30ma v out 0.5v v in 6.0v (v out 1.5v) 2.0v v in 6.0v (1.2v v out 1.4v) 0.05 0.20 %/v v in input voltage 1.7 6.0 v v out / t opt output voltage temperature coefficient i out = 30ma ? 40 c topt 85 c 100 ppm / c i sc short current limit v out = 0v 40 ma i pd ce pull-down constant current (r1180xxx1b) 0.35 a v ceh ce input voltage "h" (r1180xxx1b) 1.2 6.0 v v cel ce input voltage "l" (r1180xxx1b) 0.0 0.3 v ? electrical characteristics by output voltage topt = 25 c dropout voltage v dif (v) output voltage v out (v) condition typ. max. 1.2 < = v out < 1.3 0.85 1.20 1.3 < = v out < 1.4 0.75 1.10 1.4 < = v out < 1.5 0.65 1.00 1.5 < = v out < 1.7 0.60 0.90 1.7 < = v out < 1.9 0.50 0.75 1.9 < = v out < 2.1 0.40 0.65 2.1 < = v out < 2.8 0.35 0.55 2.8 < = v out < = 3.6 i out = 150ma 0.25 0.40
r1180x 6 typical application c1 c2 out in r1180x series v dd v out ce/nc gnd (external components) output capacitor ceramic capacitor 0.1 f 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 c2 with good frequency ch aracteristics 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 high, noise pickup or unstable operation may result. connect a capacitor c1 with a capacitance value as much as 0.1 f or more between v dd and gnd pin, and as close as possible to the pins. set external components, especially the output capacitor c2, as close as possible to the ics, and make wiring as short as possible.
r1180x 7 test circuits c1 v c2 v out i out c1=ceramic 1.0 f r1180x series v dd v out ce/nc gnd standard test circuit c1 c2 a i ss c1=ceramic 1.0 f r1180x series v dd v out ce/nc gnd supply current test circuit c2 pulse generator i out c2=ceramic 0.1 ripple rejection, line tran sient response test circuit
r1180x 8 typical characteristics 1) output voltage vs. output current (topt = 25 c) r1180x121x r1180x281x 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 100 200 300 400 500 output current i out [ma] output voltage v out [v] v in =2.0v v in =2.2v v in =3.5v v in =2.5v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 100 200 300 400 500 output current i out [ma] output voltage v out [v] v in =3.1v v in =3.3v v in =3.8v r1180x361x 0.0 1.0 2.0 3.0 4.0 0 100 200 300 400 500 output current i out [ma] output voltage v out [v] v in =3.9v v in =4.6v 2) output voltage vs. input voltage (topt = 25 c) r1180x121x r1180x281x 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 1.25 1.30 123456 input voltage v in [v] output voltage v out [v] 1ma 30ma 50ma 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 123456 input voltage v in [v] output voltage v out [v] 1ma 30ma 50ma
r1180x 9 r1180x361x 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 123456 input voltage v in [v] output voltage v out [v] 1ma 30ma 50ma 3) dropout voltage vs. output current r1180x121x r1180x281x :?:?:? :?:?:? :?:?:? :?:?:? :?:?:? :?:?:? :?:?:? :?:?:? :?:?:? :?:?:? :?:?:? 0 25 50 75 100 125 15 0 output current i out (ma) dropout voltage v dif (v) 85` 25` ?40` 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0 25 50 75 100 125 150 output current i out (ma) dropout voltage v dif (v) 85` 25` ? 40` r1180x361x 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0 25 50 75 100 125 15 0 output current i out (ma) dropout voltage v dif (v) 85` 25` ?40`
r1180x 10 4) output voltage vs. temperature (i out = 30ma) r1180x121x (v in = 2.2v) r1180x281x (v in = 3.8v) 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.23 1.24 ? 40 ? 15 10 35 60 85 temperature topt[`] output voltage v out [v] 2.74 2.76 2.78 2.80 2.82 2.84 2.86 ? 40 ? 15 10 35 60 85 temperature topt[`] output voltage v out [v] r1180x361x (v in = 4.6v) 3.52 3.54 3.56 3.58 3.60 3.62 3.64 3.66 3.68 ? 40 ? 15 10 35 60 8 5 temperature topt[`] output voltage v out [v] 5) supply current vs. input voltage (topt = 25 c) r1180x121x r1180x281x 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0123456 input voltage v in [v] supply current i ss [a] 0.0 0.2 0.4 0.6 0.8 1.0 1.2 012345 6 input voltage v in [v] supply current i ss [a]
r1180x 11 r1180x361x 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0123456 input voltage v in [v] supply current i ss [a] 6) supply current vs. temperature r1180x121x(v in = 2.2v) r1180x281x(v in = 3.8v) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 ? 40 ? 15 10 35 60 8 5 temperature topt[`] supply current i ss [a] 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 ? 50 ? 25 0 25 50 75 100 temperature topt[`] supply current i ss [a] r1180x361x(v in = 4.6v) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 ? 50 ? 25 0 25 50 75 100 temperature topt[`] supply current i ss [a]
r1180x 12 7) dropout voltage vs. set output voltage (topt = 25 c) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1234 set output voltage vreg[v] dropout voltage v dif [v] 10ma 30ma 50ma 150ma 8) ripple rejection vs. frequency (c in = none) r1180x121x r1180x121x i out = 50ma i out = 1ma i out = 30ma 0 10 20 30 40 50 60 70 0.1 1 10 100 frequency f[khz] ripple rejection rr[db] v in =2.4v dc +0.5p-p c out =ceramic0.1 f i out = 50ma i out = 1ma i out = 30ma v in =2.4v dc +0.5p-p c out =ceramic1 f 0 10 20 30 40 50 60 70 0.1 1 10 100 frequency f[khz] ripple rejection rr[db] r1180x281x r1180x281x i out = 50ma i out = 1ma i out = 30ma v in =3.8v dc +0.5p-p c out =ceramic0.1 f 0 10 20 30 40 50 60 70 0.1 1 10 100 frequency f[khz] ripple rejection rr[db] i out = 50ma i out = 1ma i out = 30ma v in =3.8v dc +0.5p-p c out =ceramic1 f 0 10 20 30 40 50 60 70 0.1 1 10 100 frequency f[khz] ripple rejection rr[db]
r1180x 13 r1180x361x r1180x361x i out = 50ma i out = 1ma i out = 30ma v in = 4.6v dc +0.5p-p c out = ceramic0.1 f 0 10 20 30 40 50 60 70 0.1 1 10 100 frequency f[khz] ripple rejection rr[db] i out = 50ma i out = 1ma i out = 30ma v in =4.6v dc +0.5p-p c out =ceramic1 f 0 10 20 30 40 50 60 70 0.1 1 10 100 frequency f[khz] ripple rejection rr[db] 9) ripple rejection vs. input bias voltage (topt = 25 c, c in = none, c out = ceramic0.1 f) r1180x281x(i out = 1ma) r1180x281x(i out = 30ma) input voltage v in [v] 0 5 10 15 20 25 30 35 40 45 50 2.9 3.2 3.5 3.8 ripple rejection rr[db] f=600hz f=1khz f=10khz f=100khz 0 5 10 15 20 25 30 35 40 45 50 2.9 3.2 3.5 3.8 input voltage v in [v] ripple rejection rr[db] f=600hz f=1khz f=10khz f=100khz r1180x281x(i out = 50ma) 0 5 10 15 20 25 30 35 40 45 50 2.9 3.2 3.5 3.8 input voltage v in [v] ripple rejection rr[db] f=600hz f=1khz f=10khz f=100khz
r1180x 14 10) input transient response (c in =none, tr = tf = 5 s ) r1180x281x 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0 100 200 300 400 500 600 700 800 900 1000 time t[s] output voltage v out [v] ?1 0 1 2 3 4 5 6 input voltage v in [v] i out =1ma c out =ceramic1 f input voltage output voltage r1180x281x i out =30ma c out =ceramic0.1 f 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0 20 40 60 80 100 120 140 160 180 200 time t[s] output voltage v out [v] ?1 0 1 2 3 4 5 6 input voltage v in [v] input voltage output voltage r1180x281x i out =30ma c out =ceramic0.47 f 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0 20 40 60 80 100 120 140 160 180 200 time t[s] output voltage v out [v] ?1 0 1 2 3 4 5 6 input voltage v in [v] input voltage output voltage
r1180x 15 r1180x281x i out =30ma c out =ceramic1 f 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0 20 40 60 80 100 120 140 160 180 200 time t[s] output voltage v out [v] ?1 0 1 2 3 4 5 6 input voltage v in [v] input voltage output voltage 11) load transient response (tr = tf = 0.5 s v in = 3.8v ) r1180x281x c out =ceramic0.1 f 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 100 200 300 400 500 600 700 800 900 1000 time t[s] output voltage v out [v] ? 40 ? 30 ? 20 ? 10 0 10 20 output current i out [ma] output current output voltage r1180x281x c out =ceramic1 f 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 100 200 300 400 500 600 700 800 900 1000 time t[s] output voltage v out [v] ? 40 ? 30 ? 20 ? 10 0 10 20 output current i out [ma] output current output voltage
r1180x 16 r1180x281x c out =ceramic10 f 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 100 200 300 400 500 600 700 800 900 1000 time t[s] output voltage v out [v] ?40 ?30 ?20 ?10 0 10 20 output current i out [ma] output current output voltage r1180x281x c out =ceramic0.1 f 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 20 40 60 80 100 120 140 160 180 200 time t[s] output voltage v out [v] ?150 ?100 ?50 0 50 100 150 output current i out [ma] output current output voltage r1180x281x c out =ceramic0.47 f 2.0 2.5 3.0 3.5 4.0 4.5 5.0 :? :?:? :?:? :?:? :?:? :?:?:? :?:?:? :?:?:? :?:?:? :?:?:? :?:?:? time t[s] output voltage v out [v] ?150 ?100 ?50 0 50 100 150 output current i out [ma] output current output voltage
r1180x 17 r1180x281x c out =ceramic1.0 f 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 20 40 60 80 100 120 140 160 180 200 time t[s] output voltage v out [v] ?150 ?100 ?50 0 50 100 150 output current i out [ma] output current output voltage
r1180x 18 esr vs. output current the relations between i out (output current) and esr of an output capacitor are shown above. the conditions when the white noise level is under 40 v (avg.) are marked as the hatched area in the graph. (1) v in = v out + 1v (2) frequency band: 10hz to 2mhz (bw = 30hz) (3) temperature: ? 40 c to 85 c r1180x121x r1180x281x c in = ceramic 1.0 a, c out = ceramic 0.1 f c in = ceramic 1.0 a, c out = ceramic 0.1 f 0.01 0.1 1 10 100 1000 0 50 100 150 output current i out [ma] esr[ ] 0.01 0.1 1 10 100 1000 0 50 100 150 output current i out [ma] esr []
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