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150ma ldo regulator r1180x series no. ea-105-0504 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 accuracy . 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 ? low supply curr ent ..........................................typ. 1 a(except the current through ce pull-down circuit) ? standby mode ...................................................typ. 0.1 a ? low dropout voltage .........................................typ. 0.25v (i out = 150ma 3.0v output type) ? low temperature-drift coefficient of output voltage typ. 100ppm/ c ? good line regulation .......................................typ. 0.05%/v ? high output vo ltage accu racy .......................... 2.0% ? small packages ..............................................sot-23-5 (r1180n)/sc-82ab(r1180q)/ son1612-6 (r1180d) ? output voltage ..................................................stepw ise setting with a step of 0.1v in the range of 1.2v to 3.6v is possible ? built-in fold back protecti on circuit .................typ. 40ma (current at short mode) ? ceramic capacitors are recommended 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, 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: r1180xxx 1x-tr part number a b c d code contents a designation of package type : n: sot-23-5 (mini mold) q: sc-82ab (super-mini mold) d: son1612-6 b setting output voltage (v out ) : stepwise setting with a step of 0.1v in the range of 1.2v to 3.6v is possible. c designation of active type : b : active high type c : without chip enable circuit d designation of taping type : ex. tr (refer to taping specifications ; tr type is the standard direction.) pin configuration sot-23-5 sc-82ab son1612-6 12 3 54 (mark side) 43 12 (mark side) 123 654
r1180x 3 pin descriptions ? sc-82ab (r1180qxx1b/c) 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 ? sot - 23-5 (r1180nxx1b/c) 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 ? son1612-6 (r1180dxx1b/c) 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
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 ~ v in + 0.3 v i out output current 180 ma power dissipation(sc82-ab) 150 power dissipation(sot23-5) 250 p d power dissipation(son1612-6) 500 ? note1 mw topt operating temperature range ? 40 ~ 85 c tstg storage temperature range ? 55 ~ 125 c ? note 1: this specification is at mounted on board. p d depends on conditions of mounting on board. this sp ecification is based on the measurement at the condition below: ? measurement conditions environment: mounted on board (wind velocity 0m/s) board material: fr-4 (2-layer) board dimensions : 40mm 40mm t1.6mm copper area : 50% 0 100 200 300 400 500 600 700 0 25 50 75 100 125 p d (mw) temperature topt( ` )
r1180x 5 electrical characteristics ? r1180xxx1b/r1180xxx1c topt = 25 c symbol item conditions min. typ. max. unit v out output voltage v in = set v out + 1v 1 a < = < = 0.980 v out 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 1 a < = < = = set v out + 1v, i out = 0ma 1.0 1.5 a istandby supply current (standby) v in = set v out + 1v v ce = gnd(b version) 0.1 1.0 a ? v out / ? v in line regulation set v out + 0.5v < = < = = 30ma 0.05 0.20 %/v v in input voltage 1.7 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 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? (r 1180xxx1b) 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 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 7 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 8 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 9 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 10 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 11 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 12 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 13 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 14 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 15 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 12) esr vs. output current r1180x121x ( c in = ceramic 1.0 a, c out = ceramic 0.1 f) r1180x281x ( 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 [ ? ] the relations between i out (output current) and esr of an output ca pacitor 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

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