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r1191x series 300ma ldo regulator with th e reverse current protection no.ea-229-111026 1 outline r1191x series are a low supply current voltage regulator with high output voltage accuracy. the maximum operating voltage is 16v. these ics can switch to the fa st mode and the low power mode by the low power / fast mode changer pin (eco pin) without changing the output voltage value. each of these ics consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, a short current limit circuit, a thermal shutdown circuit and a chip enable circuit. moreover, the r1191x series has the reverse current pr otection function, which protects the reverse current flow into v dd pin when the output pin voltage becomes higher than the v dd pin voltage. thus it is suitable for the back-up circuit. since the packages for these ics are sot-89-5, sot- 23-5 and dfn1616-6, therefore high density mounting of the ics on boards is possible. features ? supply curre nt ..................................................... typ. 50 a (fast mode), typ. 6.0 a (low power mode) ? standby mode ...................................................... typ. 0.3 a ? reverse curr ent................................................... max. 0.1 a ? output curren t ..................................................... min. 300ma ? input voltage range ............................................ 3.5v to 16.0v ? output voltage range.......................................... 2.0v to 15.0v (0.1v steps) ( for other voltages, please refer to mark informations.) ? output voltage accuracy...................................... 1.5% (fast mode) 2.5% (low power mode) ? temperature-drift coefficient of output voltage .. typ. 80ppm/ c ? dropout voltag e ................................................... typ. 0.55v (fast mode, i out = 300ma ,v out = 5.0v) typ. 0.70v (low power mode, i out = 300ma,v out = 5.0v) ? ripple rejectio n................................................... typ. 60db (f= 1khz,v out = 5.0v, fast mode) ? line regulation .................................................... typ. 0.02%/v (fast mode) ? packages ............................................................ dfn1616-6, sot-23-5, sot-89-5 ? built-in fold-back protection circuit ....................... typ. 50ma (current at short mode) ? built-in thermal shutdown circui t........................ shutdown te mperature at 150 c ? ceramic capacitors are recomm ended to be used with this ic c in = 2.2 f or more, c out = 4.7 f or more applications ? power source for digital home appliances ? power source for audio visual equipment
r1191x 2 block diagram r1191xxxxb r1191xxxxd v dd v out ce gnd short protection vref thermal shutdown eco peak current protection reverse detector v dd v out ce gnd short protection vref thermal shutdown eco peak current protection reverse detector selection guide the output voltage, auto-discharge functi on, and package, for the ics can be selected at the user?s request. product name package quantity per reel pb free halogen free r1191lxxx ? -tr dfn1616-6 5,000 pcs yes yes r1191nxxx ? -tr-fe sot-23-5 3,000 pcs yes yes r1191hxxx ? -t1-fe sot-89-5 1,000 pcs yes yes xxx : the output voltage can be designa ted in the range from 2.0v(020) to 15.0v(150) in 0.1v steps. (for other voltages, please refer to mark informations.) ? : the auto discharge function at off state are options as follows. (b) without auto discharge function at off state. (d) with auto discharge function at off state.
r1191x 3 pin configurations ? dfn1616-6* 1 ? sot-23-5 ? sot-89-5 top view 3 4 2 5 1 6 bottom view 1 6 2 5 3 4 ? 1 4 5 23 (mark side) 13 54 2 pin discriptions ? dfn1616-6* 1 pin no symbol pin description 1 eco low power / fast mode changer pin ("h": fast mode) 2 nc no connection 3 v dd input pin 4 v out output pin 5 gnd ground pin 6 ce chip enable pin ("h" active) ? 1) tab is gnd level. (they are connected to the reverse side of this ic.) the tab is better to be connected to the gn d, but leaving it open is also acceptable. ? sot-23-5 pin no symbol pin description 1 eco low power / fast mode changer pin ("h": fast mode) 2 gnd ground pin 3 ce chip enable pin ("h" active) 4 v out output pin 5 v dd input pin ? sot-89-5 pin no symbol pin description 1 v out output pin 2 gnd ground pin 3 ce chip enable pin ("h" active) 4 eco low power / fast mode changer pin ("h": fast mode) 5 v dd input pin
r1191x 4 absolute maximum ratings symbol item rating unit v in input voltage ? 0.3 to 18.0 v v ce input voltage (ce pin) ? 0.3 to 18.0 v v eco input voltage (eco pin) ? 0.3 to v in + 0.3 18.0 v v out output voltage ? 0.3 to 18.0 v i out output current 400 ma power dissipation (dfn1616-6)* 640 power dissipation (sot-23-5)* 420 p d power dissipation (sot-89-5)* 900 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 safe ty for both device and system 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.
r1191x 5 electrical characteristics v in =v ce =set v out +3.0v (max.16v), c in =2.2 f, c out =4.7 f i out =1ma, unless otherwise noted. the values in are applicable under the condition of ? 40 c t opt 85 c. r1191xxxxb/d topt = 25 c symbol item conditions min. typ. max. unit t opt = 25 c 0.985 1.015 fast mode v eco =v in ? 40 c t opt 85 c 0.970 1.030 t opt = 25 c 0.975 1.025 v out output voltage low power mode v eco =0v ? 40 c t opt 85 c 0.960 1.040 v v out output voltage deviation between fast mode and low power mode ? 1.5 0 1.5 % i out output current 300 ma fast mode v eco =v in , 1ma i out 300ma 50 120 v out / i out load regulation low power mode v eco =gnd, 1ma i out 300ma 60 130 mv v dif dropout voltage refer to the following table i ss1 supply current (fast mode) v eco =v in , i out =0ma 50 100 a i ss2 supply current (low power mode) v eco =gnd, i out =0ma 6 15 a i standby supply current (standby) v in =16v, v ce =0v (if v out < 3.0v, v in =14v) 0.3 1.0 a v out / v in line regulation set v out + 0.5v v in 16v (if set v out < 3.0v, 3.5v v in 14v) 0.02 0.10 %/v 2.0v v out <5.0v 70 5.0v v out <12v 60 rr ripple rejection f=1khz, i out =30ma ripple 0.2v p-p , v in =v eco = set v out + 1v 12v v out 60 db 2.0v v out < 3.0v 14.0 v in input voltage 3.0v v out 3.5 16.0 v v out / t opt output voltage temperature coefficient ? 40 c t opt 85 c 80 ppm / c i sc short current limit v out =0v 50 ma v ceh ce, eco input voltage "h" 1.6 v in v v cel ce, eco input voltage "l" 0 0.6 v t tsd thermal shutdown temperature junction temperature 150 c t tsr thermal shutdown released temperature junction temperature 130 c r low low output nch tr. on resistance (of d version) v in =5v, v ce =0v, v out =0.3v 150 i rev reverse current v out > 0.6v, 0v v in 16v 0 0.1 a ? ) the values in have been tested and guaranteed by design engineering. all test categories were tested on the products under the pulse load condition (tj ta=25 c) except the following test categories: ripple rejection, output voltage temperature coefficient, and thermal shutdown.
r1191x 6 electrical characteristics by output voltage topt = 25 c dropout voltage v dif (v) eco="h" eco="l" output voltage v out (v) condition typ. max. typ. max. 2.0 v out < 2.5 1.20 1.80 2.5 3.0 2.5 v out < 3.3 1.00 1.50 2.0 2.5 3.3 v out < 5.0 0.75 1.00 1.5 1.8 5.0 v out < 12.0 0.55 0.75 0.7 1.0 12.0 v out i out = 300ma 0.40 0.60 0.4 0.6 typical application c1 r1191x series v dd v out ce gnd v out eco c2 v in (external components) ex. c1: ceramic capacitor 2.2 f murata grm32rb11e225kc01b c2: ceramic capacitor 4.7 f murata gcm31cr71e475ka40
r1191x 7 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 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 high, noise pickup or unstable operation may result. connect a capacitor c1 with a capacitance value as much as 2.2 f or more between v dd and gnd pin, and as close as possible to the pins. set external components, especially the capacitor c2, as close as possible to the ics, and make wiring as short as possible. ? thermal shutdown function there is the built-in thermal-shutdown function in r1191x series. it discontinues operation of the ic when the junction temperature becomes over 150 c (typ.) and ic re-operates when the junction temperature under 130 c (typ.). if the temperature increasing keeps the ic repeats on and off operating. the output becomes the pulse condition. ? chip enable (ce) circuit and high-speed/ low supply current switching (eco) circuit to maintain the stability of the output voltage, please do not use the intermediate electric potentials (the voltage values between v ceh and v cel ) for the ce pin and the eco pin. the use of the intermediate electric potentials increases the supply current and causes the unstable output voltage. ? auto-discharge function r1191xxxxd has adopted auto-dischar ge function, which decreases the output voltage quickly to 0v by turning on the transistor between v out pin and gnd pin when switching ?active? to ?standby? and releases the electrical charges accumulated in the external capacitor.
r1191x 8 test circuits r1191x series v dd ce v out gnd c2 eco v v out c1 i out c1=ceramic 2.2 f c2=ceramic 4.7 f basic test circuit i ss a r1191x series v dd ce v out gnd c2 eco v out c1 c1=ceramic 2.2 f c2=ceramic 4.7 f test circuit for supply current pulse generator v dd ce v out gnd c2 i out r1191x series eco c1=ceramic 2.2 f c2=ceramic 4.7 f p. g. test circuit for ripple rejection
r1191x 9 v dd ce v out gnd c2 c1 v out v i out b i out a r1191x series eco c1=ceramic 2.2 f c2=ceramic 4.7 f v in test circuit for load transient response
r1191x 10 typical characteristics 1) output voltage vs. output current (c1 = 2.2 f, c2 = 4.7 f, t opt = 25 c) r1191x020x eco=h r1191x020x eco=l 0 200 400 800 output voltage v out (v) 0.5 1.5 2.5 1.0 2.0 0 output current i out (ma) 600 v in =3.5v v in =3.8v v in =4.0v v in =4.5v v in =5.0v 0 200 400 800 output voltage v out (v) 0.5 1.5 2.5 1.0 2.0 0 output current i out (ma) 600 v in =3.5v v in =3.8v v in =4.0v v in =4.5v v in =5.0v r1191x050x eco=h r1191x050x eco=l 0 200 400 800 output voltage v out (v) 2 4 6 3 5 1 0 output current i out (ma) 600 v in =5.5v v in =5.55v v in =5.7v v in =6.0v v in =7.0v v in =8.0v 0 200 400 800 output voltage v out (v) 2 4 6 3 5 1 0 output current i out (ma) 600 v in =5.5v v in =5.55v v in =5.7v v in =6.0v v in =7.0v v in =8.0v r1191x150x eco=h r1191x150x eco=l 0 200 400 800 output voltage v out (v) 4 8 16 6 12 10 14 2 0 output current i out (ma) 600 v in =15.4v v in =15.5v v in =15.6v v in =15.75v v in =16.0v 0 200 400 800 output voltage v out (v) 4 8 16 6 12 10 14 2 0 output current i out (ma) 600 v in =15.4v v in =15.5v v in =15.6v v in =15.75v v in =16.0v
r1191x 11 2) output voltage vs. input voltage (c1 = 2.2 f, c2 = 4.7 f, t opt = 25 c) r1191x020x eco=h r1191x020x eco=l 0246 10 81214 output voltage v out (v) 1.0 2.0 3.0 1.5 2.5 0.5 0 input voltage v in (v) i out =0ma i out =1ma i out =30ma i out =50ma 0246 10 81214 output voltage v out (v) 1.0 2.0 3.0 1.5 2.5 0.5 0 input voltage v in (v) i out =0ma i out =1ma i out =30ma i out =50ma r1191x050x eco=h r1191x050x eco=l 0246 10 8 121416 output voltage v out (v) 2 4 6 3 5 1 0 input voltage v in (v) i out =0ma i out =1ma i out =30ma i out =50ma 0246 10 8 121416 output voltage v out (v) 2 4 6 3 5 1 0 input voltage v in (v) i out =0ma i out =1ma i out =30ma i out =50ma r1191x150x eco=h r1191x150x eco=l 0246 10 8 121416 output voltage v out (v) 4 8 16 6 12 10 14 2 0 input voltage v in (v) i out =0ma i out =1ma i out =30ma i out =50ma 0246 10 8 121416 output voltage v out (v) 4 8 16 6 12 10 14 2 0 input voltage v in (v) i out =0ma i out =1ma i out =30ma i out =50ma
r1191x 12 3) supply current vs. input voltage (c1 = 2.2 f, c2 = 4.7 f, t opt = 25 c) r1191x020x eco=h r1191x020x eco=l 0246 10 81214 supply current i ss1 (a) 20 40 70 60 30 50 10 0 input voltage v in (v) 0246 10 81214 supply current i ss2 (a) 2 4 10 8 3 6 5 9 7 1 0 input voltage v in (v) r1191x050x eco=h r1191x050x eco=l 0246 10 81216 14 supply current i ss1 (a) 20 40 70 60 30 50 10 0 input voltage v in (v) supply current i ss2 (a) 2 4 10 8 3 6 5 9 7 1 0 input voltage v in (v) 0246 10 81216 14 r1191x150x eco=h r1191x150x eco=l 0246 10 81216 14 supply current i ss1 (a) 20 40 70 60 30 50 10 0 input voltage v in (v) supply current i ss2 (a) 2 4 10 8 3 6 5 9 7 1 0 input voltage v in (v) 0246 10 81216 14
r1191x 13 4) output voltage vs. temperature (c1 = 2.2 f, c2 = 4.7 f, i out = 1ma) r1191x020x eco=h r1191x020x eco=l -40 -25 0 25 50 85 output voltage v out (v) 2.04 2.08 2.10 2.00 1.92 1.96 2.06 2.02 1.94 1.98 1.90 temperature topt (c) 75 v in =5.0v -40 -25 0 25 50 85 output voltage v out (v) 2.04 2.08 2.10 2.00 1.92 1.96 2.06 2.02 1.94 1.98 1.90 temperature topt (c) 75 v in =5.0v r1191x050x eco=h r1191x050x eco=l -40 -25 0 25 50 85 output voltage v out (v) 5.08 5.16 5.20 5.00 4.84 4.92 5.12 5.04 4.88 4.96 4.80 temperature topt (c) 75 v in =8.0v -40 -25 0 25 50 85 output voltage v out (v) 5.08 5.16 5.20 5.00 4.84 4.92 5.12 5.04 4.88 4.96 4.80 temperature topt (c) 75 v in =8.0v r1191x150x eco=h r1191x150x eco=l -40 -25 0 25 50 85 output voltage v out (v) 15.16 15.32 15.40 15.00 14.68 14.84 15.24 15.08 14.76 14.92 14.60 temperature topt (c) 75 v in =16.0v -40 -25 0 25 50 85 output voltage v out (v) 15.16 15.32 15.40 15.00 14.68 14.84 15.24 15.08 14.76 14.92 14.60 temperature topt (c) 75 v in =16.0v
r1191x 14 5) supply current vs. temperature (c1 = 2.2 f, c2 = 4.7 f) r1191x020x eco=h r1191x020x eco=l -40 -25 0 25 50 85 40 60 70 20 50 30 10 0 75 supply current i ss1 (a) temperature topt (c) v in =5.0v -40 -25 0 25 50 85 4 8 10 1 6 2 5 9 7 3 0 75 supply current i ss2 (a) temperature topt (c) v in =5.0v r1191x050x eco=h r1191x050x eco=l -40 -25 0 25 50 85 40 60 70 20 50 30 10 0 75 supply current i ss1 (a) temperature topt (c) v in =8.0v -40 -25 0 25 50 85 4 8 10 1 6 2 5 9 7 3 0 75 supply current i ss2 (a) temperature topt (c) v in =8.0v r1191x150x eco=h r1191x150x eco=l -40 -25 0 25 50 85 40 60 70 20 50 30 10 0 75 supply current i ss1 (a) temperature topt (c) v in =16.0v -40 -25 0 25 50 85 4 8 10 1 6 2 5 9 7 3 0 75 supply current i ss2 (a) temperature topt (c) v in =16.0v
r1191x 15 6) standby current vs. input voltage (c1 = 2.2 f, c2 = 4.7 f) 0246810121416 standby current istandby ( a) 0.2 0.4 0.5 0.3 0.1 0 input voltage v in (v) 85 c 25 c -40 c 7) reverse current vs. output voltage (c1 = 2.2 f, c2 = 4.7 f, v in = 0v) 0246810121416 reverse current i rev (a) 0.02 0.04 0.05 0.03 0.01 0 output voltage v out (v) 85 c 25 c -40 c 8) dropout voltage vs. output current (c1 = 2.2 f, c2 = 4.7 f) r1191x020x eco=h r1191x020x eco=l 0 50 100 150 200 250 300 dropout voltage v dif (v) 1.00 2.00 3.00 1.50 2.50 0.50 0 output current i out (ma) 85 c 25 c -40 c 0 50 100 150 200 250 300 dropout voltage v dif (v) 1.00 2.00 3.00 1.50 2.50 0.50 0 output current i out (ma) 85 c 25 c -40 c
r1191x 16 r1191x025x eco=h r1191x025x eco=l 0 50 100 150 200 250 300 dropout voltage v dif (v) 0.50 1.50 2.50 1.00 2.00 0 output current i out (ma) 85 c 25 c -40 c 0 50 100 150 200 250 300 dropout voltage v dif (v) 0.50 1.50 2.50 1.00 2.00 0 output current i out (ma) 85 c 25 c -40 c r1191x033x eco=h r1191x033x eco=l 0 50 100 150 200 250 300 dropout voltage v dif (v) 0.30 0.90 1.50 0.60 1.20 0 output current i out (ma) 85 c 25 c -40 c 0 50 100 150 200 250 300 dropout voltage v dif (v) 0.30 0.90 1.50 0.60 1.20 0 output current i out (ma) 85 c 25 c -40 c r1191x050x eco=h r1191x050x eco=l 0 50 100 150 200 250 300 dropout voltage v dif (v) 0.20 0.60 1.00 0.40 0.80 0 output current i out (ma) 85 c 25 c -40 c 0 50 100 150 200 250 300 dropout voltage v dif (v) 0.20 0.60 1.00 0.40 0.80 0 output current i out (ma) 85 c 25 c -40 c
r1191x 17 r1191x120x eco=h r1191x120x eco=l 0 50 100 150 200 250 300 dropout voltage v dif (v) 0.10 0.40 0.80 0.20 0.60 0.50 0.30 0.70 0 output current i out (ma) 85 c 25 c -40 c 0 50 100 150 200 250 300 dropout voltage v dif (v) 0.10 0.40 0.80 0.20 0.60 0.50 0.30 0.70 0 output current i out (ma) 85 c 25 c -40 c r1191x150x eco=h r1191x150x eco=l 0 50 100 150 200 250 300 dropout voltage v dif (v) 0.10 0.40 0.80 0.20 0.60 0.50 0.30 0.70 0 output current i out (ma) 85 c 25 c -40 c 0 50 100 150 200 250 300 dropout voltage v dif (v) 0.10 0.40 0.80 0.20 0.60 0.50 0.30 0.70 0 output current i out (ma) 85 c 25 c -40 c 9) dropout voltage vs set output voltage (c1 = 2.2 f, c2 = 4.7 f,t opt = 25 c) r1191x eco=h r1191x eco=l 25 9 15 dropout voltage v dif (v) 1.20 0.80 0.20 0.40 1.00 0.60 0 set output voltage v reg (v) 13 3711 61014 4812 i out =300ma i out =150ma i out =50ma 25 9 15 dropout voltage v dif (v) 2.50 1.50 0.50 2.00 1.00 0 set output voltage v reg (v) 13 3711 61014 4812 i out =300ma i out =150ma i out =50ma
r1191x 18 10) ripple rejection vs. input voltage (c1 = none, c2 = 4.7 f, i out = 30ma, ripple = 0.5vp-p, topt = 25 c) r1191x020x eco=h r1191x020x eco=l 3.5 5.5 6.0 6.5 7.0 ripple rejection rr (db) 100 70 10 30 90 50 80 20 40 60 0 input voltage v in (v) 4.5 5.0 4.0 f=1khz f=10khz f=100khz 3.5 5.5 6.0 6.5 7.0 ripple rejection rr (db) 100 70 10 30 90 50 80 20 40 60 0 input voltage v in (v) 4.5 5.0 4.0 f=1khz f=10khz f=100khz r1191x050x eco=h r1191x050x eco=l 5.0 7.5 8.0 8.5 9.0 ripple rejection rr (db) 100 70 10 30 90 50 80 20 40 60 0 input voltage v in (v) 6.5 7.0 6.05.5 f=1khz f=10khz f=100khz 5.0 7.5 8.0 8.5 9.0 ripple rejection rr (db) 100 70 10 30 90 50 80 20 40 60 0 input voltage v in (v) 6.5 7.0 6.05.5 f=1khz f=10khz f=100khz r1191x150x eco=h r1191x150x eco=l 15.0 15.5 15.6 15.7 ripple rejection rr (db) 100 70 10 30 90 50 80 20 40 60 0 input voltage v in (v) 15.3 15.4 15.215.1 f=1khz f=10khz f=100khz 15.0 15.5 15.6 15.7 ripple rejection rr (db) 100 70 10 30 90 50 80 20 40 60 0 input voltage v in (v) 15.3 15.4 15.215.1 f=1khz f=10khz f=100khz
r1191x 19 11) ripple rejection vs. frequency (c1 = none, c2 = 4.7 f, ripple = 0.5vp-p, topt = 25 c) r1191x020x eco=h r1191x020x eco=l 0.1 10 1 1000 100 frequency f (khz) 0 100 80 60 40 20 90 70 50 30 10 ripple rejection rr (db) i out =1ma i out =10ma i out =30ma i out =50ma i out =100ma i out =300ma v in =5.0v 0.1 10 1 1000 100 frequency f (khz) 0 100 80 60 40 20 90 70 50 30 10 ripple rejection rr (db) i out =1ma i out =10ma i out =30ma i out =50ma i out =100ma i out =300ma v in =5.0v r1191x050x eco=h r1191x050x eco=l 0.1 10 1 1000 100 frequency f (khz) 0 100 80 60 40 20 90 70 50 30 10 ripple rejection rr (db) i out =1ma i out =10ma i out =30ma i out =50ma i out =100ma i out =300ma v in =8.0v 0.1 10 1 1000 100 frequency f (khz) 0 100 80 60 40 20 90 70 50 30 10 ripple rejection rr (db) i out =1ma i out =10ma i out =30ma i out =50ma i out =100ma i out =300ma v in =8.0v r1191x150x eco=h r1191x150x eco=l 0.1 10 1 1000 100 frequency f (khz) 0 100 80 60 40 20 90 70 50 30 10 ripple rejection rr (db) i out =1ma i out =10ma i out =30ma i out =50ma i out =100ma i out =300ma v in =16.0v 0.1 10 1 1000 100 frequency f (khz) 0 100 80 60 40 20 90 70 50 30 10 ripple rejection rr (db) i out =1ma i out =10ma i out =30ma i out =50ma i out =100ma i out =300ma v in =16.0v
r1191x 20 12) input transient response (c1= none, c2 = 4.7 f, i out = 1ma, tr = tf= 1 s, t opt = 25 c) r1191x020x eco=h r1191x020x eco=l 1.98 2.01 2.02 2.03 2.04 1.99 2.00 6 5 4 3 2 1 0 200 0 100 300 400 500 600 700 800 900 input voltage v in (v) output voltage input voltage time t (s) output voltage v out (v) 4v 5v 1.80 2.10 2.20 2.30 2.40 1.90 2.00 6 5 4 3 2 1 0 2 01 3456789 input voltage v in (v) output voltage input voltage time t (ms) output voltage v out (v) 4v 5v r1191x050x eco=h r1191x050x eco=h 4.98 5.01 5.02 5.03 5.04 4.99 5.00 9 8 7 6 5 4 3 200 0 100 300 400 500 600 700 800 900 input voltage v in (v) output voltage input voltage time t (s) output voltage v out (v) 7v 8v 4.80 5.10 5.20 5.30 5.40 4.90 5.00 9 8 7 6 5 4 3 input voltage v in (v) output voltage input voltage time t (ms) output voltage v out (v) 7v 8v 2 01 3456789 r1191x150x eco=h r1191x150x eco=l 14.98 15.01 15.02 15.03 15.04 14.99 15.00 17 16 15 14 13 12 11 200 0 100 300 400 500 600 700 800 900 input voltage v in (v) output voltage input voltage time t (s) output voltage v out (v) 15.5v 16.0v 14.80 15.10 15.20 15.30 15.40 14.90 15.00 17 16 15 14 13 12 11 input voltage v in (v) output voltage input voltage output voltage v out (v) 15.5v 16.0v time t (ms) 2 01 3456789
r1191x 21 13) load transient response (c1 = 2.2 f, c2 = 4.7 f, tr = tf = 0.1 s, t opt = 25 c) r1191x020x eco=h 1.90 2.05 v in =5.0v 2.10 2.15 2.20 1.95 2.00 60 30 0 0.4 0 0.2 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 output current i out (ma) output voltage output current time t (ms) output voltage v out (v) 0.1ma 30ma r1191x020x eco=h r1191x020x eco=l 1.8 2.1 v in =5.0v 2.2 2.3 2.4 1.9 2.0 300 150 0 800 40 120 160 200 240 280 320 360 400 output current i out (ma) output voltage output current time t (s) output voltage v out (v) 1ma 150ma 1.8 2.1 v in =5.0v 2.2 2.3 2.4 1.9 2.0 20 10 0 output current i out (ma) output voltage output current output voltage v out (v) 1ma 10ma 0.8 0 0.4 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 time t (ms) r1191x020x eco=h r1191x020x eco=l 1.8 2.1 v in =5.0v 2.2 2.3 2.4 1.9 2.0 400 200 0 output current i out (ma) output voltage output current output voltage v out (v) 1ma 300ma 0.2 0 0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 time t (ms) 1.8 2.1 v in =5.0v 2.2 2.3 2.4 1.9 2.0 350 300 250 200 150 100 50 output current i out (ma) output voltage output current output voltage v out (v) 250ma 300ma 0.2 0 0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 time t (ms)
r1191x 22 r1191x050x eco=h 4.90 5.05 v in =8.0v 5.10 5.15 5.20 4.95 5.00 60 30 0 0.4 0 0.2 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 output current i out (ma) output voltage output current time t (ms) output voltage v out (v) 0.1ma 30ma r1191x050x eco=h r1191x050x eco=l 4.8 5.1 v in =8.0v 5.2 5.3 5.4 4.9 5.0 300 150 0 800 40 120 160 200 240 280 320 360 400 output current i out (ma) output voltage output current time t (s) output voltage v out (v) 1ma 150ma 4.8 5.1 v in =8.0v 5.2 5.3 5.4 4.9 5.0 20 10 0 output current i out (ma) output voltage output current output voltage v out (v) 1ma 10ma 0.8 0 0.4 1.2 1.6 2.0 2.4 2.8 3.2 3.6 time t (ms) r1191x050x eco=h r1191x050x eco=l 4.8 5.1 v in =8.0v 5.2 5.3 5.4 4.9 5.0 400 200 0 output current i out (ma) output voltage output current output voltage v out (v) 1ma 300ma 0.2 0 0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 time t (s) 4.8 5.1 v in =8.0v 5.2 5.3 5.4 4.9 5.0 350 300 250 200 150 100 50 output current i out (ma) output voltage output current output voltage v out (v) 250ma 300ma 0.2 0 0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 time t (ms)
r1191x 23 r1191x150x eco=h 14.90 15.05 v in =16.0v 15.10 15.15 15.20 14.95 15.00 60 30 0 0.4 0 0.2 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 output current i out (ma) output voltage output current time t (ms) output voltage v out (v) 0.1ma 30ma r1191x150x eco=h r1191x150x eco=l 14.8 15.1 v in =16.0v 15.2 15.3 15.4 14.9 15.0 300 150 0 output current i out (ma) output voltage output current output voltage v out (v) 1ma 150ma 0.2 0 0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 time t (ms) 14.8 15.1 v in =16.0v 15.2 15.3 15.4 14.9 15.0 20 10 0 output current i out (ma) output voltage output current output voltage v out (v) 1ma 10ma 0.8 0 0.4 1.2 1.6 2.0 2.4 2.8 3.2 time t (ms) r1191x150x eco=h r1191x150x eco=l 14.8 15.1 v in =16.0v 15.2 15.3 15.4 14.9 15.0 400 200 0 output current i out (ma) output voltage output current output voltage v out (v) 1ma 300ma 0.4 0 0.2 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 time t (ms) v in =16.0v 350 300 250 200 150 100 50 output current i out (ma) output voltage output current output voltage v out (v) 250ma 300ma 14.8 15.1 15.2 15.3 15.4 14.9 15.0 0.4 0 0.2 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 time t (ms)
r1191x 24 14) inrush current at turn on(c1 = 2.2 f, c2 = 4.7 f, tr = 0.1 s, t opt = 25 c) r1191x020x eco=h r1191x020x eco=l i out =1ma 2 4 6 0 500 250 0 750 0 400 800 1200 1600 inrush current (ma) output voltage inrush current time t (s) ce input voltage ce input voltage v ce (v) output voltage v out (v) i out =1ma 2 4 6 0 500 250 0 02468 inrush current (ma) output voltage inrush current time t (ms) ce input voltage ce input voltage v ce (v) output voltage v out (v) r1191x020x eco=h r1191x020x eco=l i out =30ma 2 4 6 0 500 250 0 750 800 160 240 320 400 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage i out =30ma 2 4 6 0 500 250 0 4000 800 1200 1600 2000 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage r1191x020x eco=h r1191x020x eco=l i out =150ma 2 4 6 0 500 250 0 750 0 160 240 320 400 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage i out =150ma 2 4 6 0 500 250 0 4000 800 1200 1600 2000 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage
r1191x 25 r1191x020x eco=h r1191x020x eco=l i out =300ma 2 4 6 0 500 250 0 4000 800 1200 1600 2000 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage i out =300ma 2 4 6 0 500 250 0 750 0 160 240 320 400 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage r1191x050x eco=h r1191x050x eco=l i out =1ma 5 10 15 0 500 250 0 750 800 160 240 320 400 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage i out =1ma 5 10 15 0 500 250 0 2 0 46810 inrush current (ma) output voltage inrush current time t (ms) ce input voltage v ce (v) output voltage v out (v) ce input voltage r1191x050x eco=h r1191x050x eco=l i out =30ma 5 10 15 0 500 250 0 750 800 160 240 320 400 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage i out =30ma 5 10 15 0 500 250 0 4000 800 1200 1600 2000 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage
r1191x 26 r1191x050x eco=h r1191x050x eco=l i out =150ma 5 10 15 0 500 250 0 750 800 160 240 320 400 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage i out =150ma 5 10 15 0 500 250 0 750 4000 800 1200 1600 2000 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage r1191x050x eco=h r1191x050x eco=l i out =300ma 5 10 15 0 500 250 0 750 800 160 240 320 400 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage i out =300ma 5 10 15 0 500 250 0 750 4000 800 1200 1600 2000 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage r1191x150x eco=h r1191x150x eco=l i out =1ma 500 250 0 750 2000 400 600 800 1000 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage 10 15 20 5 0 i out =1ma 10 15 20 5 0 500 250 0 750 4000 800 1200 1600 2000 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage
r1191x 27 r1191x150x eco=h r1191x150x eco=l i out =30ma 500 250 0 750 2000 400 600 800 1000 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage 10 15 20 5 0 i out =30ma 500 250 0 750 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage 10 15 20 5 0 4000 800 1200 1600 2000 r1191x150x eco=h r1191x150x eco=l i out =150ma 500 250 0 750 2000 400 600 800 1000 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage 10 15 20 5 0 i out =150ma 500 250 0 750 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage 10 15 20 5 0 4000 800 1200 1600 2000 r1191x150x eco=h r1191x150x eco=l i out =300ma 500 250 0 750 2000 400 600 800 1000 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage 10 15 20 5 0 i out =300ma 500 250 0 750 inrush current (ma) output voltage inrush current time t (s) ce input voltage v ce (v) output voltage v out (v) ce input voltage 10 15 20 5 0 4000 800 1200 1600 2000
r1191x 28 15) turn off speed with ce pin (d version) (c1 = 2.2 f, c2 = 4.7 f, tf = 0.1 s, t opt = 25 c) r1191x020d r1191x050d 2 v in =5.0v 4 5 3 0 1 10 5 0 0.40 0.8 1.2 1.6 2.0 2.4 2.8 3.2 ce input voltage v ce (v) output voltage time t (ms) output voltage v out (v) ce input voltage i out =0ma i out =30ma i out =150ma i out =300ma 4 v in =8.0v 8 10 6 0 2 10 5 0 0.40 0.8 1.2 1.6 2.0 2.4 2.8 3.2 ce input voltage v ce (v) output voltage time t (ms) output voltage v out (v) ce input voltage i out =0ma i out =30ma i out =150ma i out =300ma r1191x150d 16 v in =16.0v 32 40 24 0 8 20 10 0 0.40 0.8 1.2 1.6 2.0 2.4 2.8 3.2 ce input voltage v ce (v) output voltage time t (ms) output voltage v out (v) ce input voltage i out =0ma i out =30ma i out =150ma i out =300ma
r1191x 29 16) output voltage at mode alternative point (c1 = 2.2 f, c2 = 4.7 f, tr = tf= 0.1 s, topt = 25 c) r1191x020x r1191x050x 1.80 2.05 2.00 1.90 1.85 1.95 1.80 2.05 2.00 1.90 1.85 1.95 1.80 2.05 2.00 1.90 1.85 1.95 1.80 2.05 2.00 1.90 1.85 1.95 1.80 2.05 2.00 1.90 1.85 1.95 1.80 2.05 2.00 1.90 1.85 1.95 v in =5.0v 8 4 6 2 0 eco input voltage v eco (v) i out =1ma eco input voltage i out =10ma i out =50ma i out =100ma i out =150ma i out =300ma output voltage v out (v) time t (ms) -2 876543210-1 4.7 4.8 5.0 4.9 5.1 4.8 4.7 5.0 4.9 5.1 4.8 4.7 5.0 4.9 5.1 4.8 4.7 5.0 4.9 5.1 4.8 4.7 5.0 4.9 5.1 4.8 4.7 5.0 4.9 5.1 v in =8.0v time t (ms) -2 876543210-1 15 10 5 0 eco input voltage v eco (v) i out =1ma i out =10ma i out =50ma i out =100ma i out =150ma i out =300ma output voltage v out (v) eco input voltage r1191x020x r1191x050x v in =5.0v -0.2 1.81.61.41.21.00.80.60.40.20 eco input voltage v eco (v) output voltage v out (v) 1.80 1.85 2.05 1.95 1.90 2.00 6 2 4 0 i out =0ma time t (s) eco input voltage v in =8.0v -0.2 3.2 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 2.8 3.0 4.7 5.1 4.9 4.8 5.0 15 10 5 0 i out =0ma time t (s) eco input voltage v eco (v) output voltage v out (v) eco input voltage
r1191x 30 r1191x150x 14.7 15.1 14.9 14.8 15.0 14.7 15.1 14.9 14.8 15.0 14.7 15.1 14.9 14.8 15.0 14.7 15.1 14.9 14.8 15.0 14.7 15.1 14.9 14.8 15.0 14.7 15.1 14.9 14.8 15.0 v in =16.0v time t (ms) -2 876543210-1 eco input voltage v eco (v) i out =1ma eco input voltage i out =10ma i out =50ma i out =100ma i out =150ma i out =300ma output voltage v out (v) 30 20 10 0 r1191x150x v in =16.0v eco input voltage v eco (v) output voltage v out (v) 14.7 14.8 15.0 14.9 15.1 30 20 10 0 i out =0ma time t (s) -0.2 3.0 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 2.8 eco input voltage
r1191x 31 17) thermal shutdown circuit (c1 = 2.2 f, c2 = 4.7 f, v in = 16v, r load = 1k ) r1191x050x eco=h r1191x050x eco=l 25 65 105 output voltage v out (v) 1 4 8 2 6 5 3 7 0 temperature topt ( c) 45 85 130 150 25 65 105 output voltage v out (v) 1 4 8 2 6 5 3 7 0 temperature topt ( c) 45 85 130 150
r1191x 32 esr vs. output current when using these ics, consider the following points: the relations between i out (output current) and esr of an output capacitor are shown below. the conditions when the white noise level is under 40 v (avg.) are marked as the hatched area in the graph. measurement conditions frequency band : 10hz to 1mhz temperature : ? 40 c to 85 c hached area : noise level is under 40 vms(avg.) c in : 2.2 f murata (grm32rb11e225kc01b) c out : 4.7 f murata (gcm31cr71e475ka40) r1191x020x eco=h, eco=l r1191x050x eco=h, eco=l 0 100 200 300 output current i out (ma) esr () 0.01 100 1 0.1 10 0 100 200 300 output current i out (ma) esr () 0.01 100 1 0.1 10 r1191x150x eco=h, eco=l 0 100 200 300 output current i out (ma) esr () 0.01 100 1 0.1 10
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