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r1172x series super low on resistance / low voltage 1a ldo no.ea-122-130924 1 outline the r1172x series are cmos-based positive voltage regula tor ics. the r1172x series have features of super low dropout, 1a output current capability. even the output vo ltage is set at 1.5v, on resistance of internal fet is typically 0.32 . therefore, applications that require a large curr ent at small dropout are suitable for the r1172x series. low input voltage is acceptable and low output voltage can be set. the minimum input voltage is 1.4v, and the lowest set output voltage is 0.8v. each of these ics consists of a voltage reference unit, an error amplifier, resistor net for setting output voltage, a current limit circuit at over-current, a chip enable circuit, a thermal-shutdown circuit, and so on. a stand-by mode wi th ultra low consumption current can be realized with the chip enable pin. the output voltage of r1172 is fixed in the ic. since the packages for these ics are sot-23-5, sot-89-5, hson-6, and hsop-6j with high power dissipation, high density mounting of the ics on boards is possible. features ? output current ............................................................ 1a ? supply current ............................................................. typ. 60 a ? standby current .......................................................... typ. 0.1 a ? input voltage range ................................................... 1.4v to 6.0v ? output voltage .............................................................. 0.8v to 5.0v (0.1v steps) ( for other voltages, please refer to mark informations.) ? dropout voltage ............................................................ typ. 0.32v (v out = 1.5v, i out = 1a) typ. 0.18v (v out = 2.8v, i out = 1a) ? ripple rejectio n ........................................................... typ. 70db (v out = 2.8v) ? output voltage accuracy .............................................. 2.0% ? temperature-drift coefficient of output voltage .......... typ. 100ppm/ c ? line regulation ............................................................ typ. 0.05%/v ? load regulati on ......................................................... typ. 15mv at i out = 300ma, typ. 50mv at i out = 1a ? packages .................................................................... sot-23-5, so t-89-5, hson-6, hsop-6j ? built-in inrush current lim it circuit ............................... typ. 500 ma ? built-in fold-back protection circuit ........................... typ. 250ma (current at short mode) ? built-in thermal shutdown circuit .............................. ther mal shutdown temperature ; typ. 150 c released temperature ; typ. 120 c ? built-in auto discharg e function ................................ d version ? output capa citors ....................................................... c in = c out = tantalum 4.7 f (v out < 1.0v) c in = c out = ceramic 4.7 f (v out > = 1.0v) applications ? local power source for notebook pc. ? local power source for portable communication equipments, cameras, and vcrs. ? local power source for home appliances.
r1172x 2 block diagrams r1172xxx1a v dd gnd v out vref current limit thermal shutdown ce r1172xxx1b v dd gnd v out ce vref current limit thermal shutdown r1172xxx1d v dd gnd v out ce vref current limit thermal shutdown selection guide the output voltage, chip-enable polarity, auto discharge function, and package for the ics can be selected at the user?s request. product name package quantity per reel pb free halogen free r1172nxx1 ? -tr-fe sot-23-5 3,000 pcs yes yes r1172hxx1 ? -t1-fe sot-89-5 1,000 pcs yes yes r1172dxx1 ? -tr-fe hson-6 3,000 pcs yes yes r1172sxx1 ? -e2-fe hsop-6j 1,000 pcs yes yes xx : the output voltage can be designated in the rang e from 0.8v(08) to 5.0v(50) in 0.1v steps. (hsop-6j : 0.8v to 3.5v) (for other voltages, please refer to mark informations.) ? : ce pin polarity and auto discharge functi on at off state are options as follows. (a) "l" active, without auto discharge function at off state (b) "h" active, without aut o discharge function at off state (d) "h" active, with auto discharge function at off state
r1172x 3 pin configurations z sot-23-5 z sot-89-5 z hson-6 z hsop-6j 1 4 5 2 3 (mark side) 1 3 5 4 2 top view bottom view 456 321 654 123 1 3 6 4 2 5 pin descriptions x sot-23-5 pin no. symbol description 1 v out voltage regulator output pin 2 gnd ground pin 3 v dd input pin 4 nc no connection 5 ce or ce chip enable pin x sot-89-5 pin no. symbol description 1 ce or ce chip enable pin 2 gnd ground pin 3 nc no connection 4 v dd input pin 5 v out voltage regulator output pin x hson-6 pin no. symbol description 1 v out * 1 voltage regulator output pin 2 v out * 1 voltage regulator output pin 3 ce or ce chip enable pin 4 gnd ground pin 5 v dd * 1 input pin 6 v dd * 1 input pin ) tab and tab suspension leads in the parts are gnd level. (they are connected to the reverse side of the ic.) the tab is better to be connected to the gn d, but leaving it open is also acceptable. the tab suspension leads should be open and do not connect to other wires or land patterns. 1) the v out pin and v dd pin must be wired each other when it is mounted on board.
r1172x 4 ? hsop-6j pin no. symbol description 1 v out voltage regulator output pin 2 gnd* 1 ground pin 3 ce or ce chip enable pin 4 nc no connection 5 gnd* 1 ground pin 6 v dd input pin ? 1) the gnd pin must be wired together when it is mounted on board. absolute maximum ratings symbol item rating unit v in input voltage 6.5 v v ce input voltage ( ce or ce input pin) ? 0.3 to 6.5 v v out output voltage ? 0.3 to v in + 0.3 v p d power dissipation (sot-23-5) * 420 mw power dissipation (sot-89-5) * 900 power dissipation (hson-6) * 900 power dissipation (hsop-6j) * 1700 t opt operating temperature range ? 40 to 85 c t stg 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.
r1172x 5 electrical characteristics ? r1172xxx1a topt = 25 c symbol item conditions min. typ. max. unit v in input voltage 1.4 6.0 v i ss supply current v in ? = = = 0a 60 100 a i standby standby current v in = 6.0v, v ce = v in 0.1 1.0 a v out output voltage v in ? v out = 1.0v i out = 100ma v out > 1.5v 0.98 1.02 v v out < = ? 30 + 30 mv v out / i out load regulation v in ? = < = < = < = = 1.4v ? 15 15 30 mv v in ? = < = < = < = = 1.7v 50 v dif dropout voltage refer to dropout voltage table v out / v in line regulation i out = + 0.5v < = < = < = < = < = = < = = 1khz (v out > 4.0v) ripple 0.5vp-p, v in ? v out = 1.0v, i out = 100ma if v out < = ? v out = 1.5v, i out = 100ma 70 60 db v out / t opt output voltage temperature coefficient i out = ? 40 c < = < = c 100 ppm/ c i lim output current v in ? v out = 1.0v 1 a i sc short current limit v out = 0v 250 ma r pu pull-up resistance for ce pin 1.9 5.0 15.0 m v ceh ce input voltage "h" 1.0 6.0 v v cel ce input voltage "l" 0 0.4 v t tsd thermal shutdown temperature junction temperature 150 c t tsr thermal shutdown released temperature junction temperature 120 c en output noise bw = 10hz to 100khz 30 vrms
r1172x 6 ? r1172xxx1b/d topt = 25 c symbol item conditions min. typ. max. unit v in input voltage 1.4 6.0 v i ss supply current v in ? = = = 0a 60 100 a i standby standby current v in = 6.0v, v ce = 0v 0.1 1.0 a v out output voltage v in ? v out = 1.0v i out = 100ma v out > 1.5v 0.98 1.02 v v out < = ? 30 + 30 mv v out / i out load regulation v in ? = < = < = < = = 1.4v ? 15 15 30 mv v in ? = < = < = < = = 1.7v 50 v dif dropout voltage refer to dropout voltage table v out / v in line regulation i out = + 0.5v < = < = < = < = < = = < = = 1khz (v out > 4.0v) ripple 0.5vp-p, v in ? v out = 1.0v i out = 100ma if v out < = ? v out = 1.5v, i out = 100ma 70 60 db v out / t opt output voltage temperature coefficient i out = ? 40 c < = < = c 100 ppm/ c i lim output current v in ? v out = 1.0v 1 a i sc short current limit v out = 0v 250 ma r pd pull-down resistance for ce pin 1.9 5.0 15.0 m v ceh ce input voltage "h" 1.0 6.0 v v cel ce input voltage "l" 0 0.4 v t tsd thermal shutdown temperature junction temperature 150 c t tsr thermal shutdown released temperature junction temperature 120 c en output noise bw = 10hz to 100khz 30 vrms
r1172x 7 ? dropout voltage by output voltage topt = 25 c output voltage v out (v) dropout voltage v dif (v) i out = 300ma i out = 1a typ. max. typ. 0.8 < = v out < 0.9 0.33 0.57 0.72 0.9 < = v out < 1.0 0.22 0.47 0.64 1.0 < = v out < 1.5 0.18 0.32 0.56 1.5 < = v out < 2.6 0.10 0.15 0.32 2.6 < = v out 0.05 0.10 0.18
r1172x 8 typical application (r1172xxx1b/d) c1 r1172x series v dd v out ce gnd c2 v out technical notes when using these ics, consider the following points: phase compensation in these ics, phase compensation is made for securing stable 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). the recommendation value is as follows. output voltage c2 recommendation value components recommendation v out < 1.0v tantalum 4.7 f or more 1.0 < = v out < = 3.3v ceramic 4.7 f or more kyocera murata murata 4.7 f (1608) 10 f (1608) part number : cm105x5r475m06ab part number : grm188r60j475ke19b part number : grm188b30g106me46b 3.3v < v out ceramic 4.7 f or more kyocera murata 4.7 f (2012) part number : ct21x5r475m06ab part number : grm21bb30j106k ? ? 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 c1 with a capacitance value as much as 4.7 f or more between v dd and gnd pin, and as close as possible to the pins. set external components, especially the output capacito r c2, as close as possible to the ics, and make wiring as short as possible. if you use a tantalum type capacitor and esr value of the capacitor is large, output might be unstable. evaluate your circuit with consider ing frequency characteristics. depending on the capacitor size, manufacturer, and pa rt number, the bias characteristics and temperature characteristics are different. evaluate the circuit with actual using capacitors.
r1172x 9 typical characteristics 1) output voltage vs. output current (topt = 25c) r1172x081x r1172x151x v dd= 1.4v v dd= 1.5v v dd= 1.6v v dd= 2.0v v dd= 2.8v 0 1500 1000 500 2000 output current i out (ma) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.9 0.8 output voltage v out (v) v dd= 1.8v v dd= 2.5v v dd= 3.5v 0 1500 1000 500 2000 output current i out (ma) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 output voltage v out (v) r1172x301x r1172x401x v dd= 3.3v v dd= 4.0v v dd= 5.0v 0 1500 1000 500 2000 output current i out (ma) 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 output voltage v out (v) v dd= 4.3v v dd= 5.0v v dd= 6.0v 0 1500 1000 500 2000 output current i out (ma) 0.0 1.0 0.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5 output voltage v out (v) r1172x501x v dd= 5.3v v dd= 6.0v 0 1500 1000 500 2000 output current i out (ma) 0.0 3.0 2.0 1.0 4.0 5.0 6.0 output voltage v out (v)
r1172x 10 2) output voltage vs. input voltage (topt = 25c) r1172x081x r1172x151x i out= 1 ma i out= 50 ma i out= 99 ma i out= 300 ma 06 54321 input voltage v in (v) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 output voltage v out (v) i out= 1 ma i out= 50 ma i out= 99 ma i out= 300 ma 06 54321 input voltage v in (v) 0.0 0.6 0.4 0.2 0.8 1.0 1.2 1.4 1.6 output voltage v out (v) r1172x301x r1172x401x i out= 1 ma i out= 50 ma i out= 99 ma i out= 300 ma 06 54321 input voltage v in (v) 0.0 1.2 0.8 0.4 1.6 2.0 2.4 2.8 3.2 output voltage v out (v) i out= 1 ma i out= 50 ma i out= 99 ma i out= 300 ma 06 54321 input voltage v in (v) 0.0 2.0 1.5 1.0 0.5 2.5 3.0 3.5 4.0 4.5 output voltage v out (v) r1172x501x i out= 1 ma i out= 50 ma i out= 99 ma i out= 300 ma 06 54321 input voltage v in (v) 0.0 3.0 2.5 2.0 1.5 1.0 0.5 3.5 4.0 4.5 5.0 5.5 output voltage v out (v)
r1172x 11 3) supply current vs. input current (topt = 25c) r1172x081x r1172x151x 024 1356 input voltage v in (v) 0 10 20 30 40 50 60 70 supply current i ss ( a) 024 1356 input voltage v in (v) 0 10 20 30 40 50 60 70 supply current i ss ( a) r1172x301x r1172x401x 024 1356 input voltage v in (v) 0 10 20 30 40 50 60 70 supply current i ss ( a) 024 1356 input voltage v in (v) 0 10 20 30 40 50 60 70 supply current i ss ( a) r1172x501x 024 1356 input voltage v in (v) 0 10 20 30 40 50 60 70 supply current i ss (a)
r1172x 12 4) output voltage vs. temperature (i out = 100ma) r1172x081x r1172x151x -50 0 50 -25 25 75 100 temperature topt(c) 0.76 0.77 0.78 0.79 0.80 0.81 0.82 0.83 output voltage v out (v) v in =1.8v -50 0 50 -25 25 75 100 temperature topt(c) 1.46 1.47 1.48 1.49 1.50 1.51 1.52 1.53 output voltage v out (v) v in =2.5v r1172x301x r1172x501x -50 0 50 -25 25 75 100 temperature topt(c) 2.92 2.94 2.96 2.98 3.00 3.02 3.04 3.06 output voltage v out (v) v in =4.0v -50 0 50 -25 25 75 100 temperature topt(c) 4.88 4.90 4.92 4.94 4.96 4.98 5.00 5.02 output voltage v out (v) v in =6.0v 5) supply current vs. temperature r1172x081x r1172x151x -50 0 50 -25 25 75 100 temperature topt(c) 0 10 20 30 40 50 60 70 80 supply current i ss (a) v in =1.8v -50 0 50 -25 25 75 100 temperature topt(c) 0 10 20 30 40 50 60 70 80 supply current i ss (a) v in =2.5v
r1172x 13 r1172x301x r1172x501x -50 0 50 -25 25 75 100 temperature topt(c) 0 10 20 30 40 50 60 70 80 supply current i ss ( a) v in =4.0v -50 0 50 -25 25 75 100 temperature topt(c) 0 10 20 30 40 50 60 70 80 supply current i ss ( a) v in =6.0v 6) dropout voltage vs. output current r1172x081x r1172x091x 85c 25c -40c 0 400 600 200 800 1000 output current i out (ma) 0 100 200 300 400 500 600 700 800 dropout voltage v dif (mv) 85c 25c -40c 0 400 600 200 800 1000 output current i out (ma) 0 100 200 300 400 500 600 700 dropout voltage v dif (mv) r1172x101x r1172x151x 85c 25c -40c 0 400 600 200 800 1000 output current i out (ma) 0 100 200 300 400 500 600 dropout voltage v dif (mv) 85c 25c -40c 0 400 600 200 800 1000 output current i out (ma) 0 50 100 150 200 250 300 350 400 dropout voltage v dif (mv)
r1172x 14 r1172x301x r1172x501x 85c 25c -40c 0 400 600 200 800 1000 output current i out (ma) 0 50 100 150 200 250 dropout voltage v dif (mv) 85c 25c -40c 0 400 600 200 800 1000 output current i out (ma) 0 40 20 60 80 100 120 140 180 160 200 dropout voltage v dif (mv) 7) dropout voltage vs. set output voltage 8) 0.8v output type, operating input voltage range r1172xxx1x r1172x081x 02 14 35 set output voltage v reg (v) 0 100 200 300 400 500 600 800 700 100ma 200ma 400ma 600ma 800ma 1000ma dropout voltage v dif (mv) operating input voltage range 0 800 600 200 400 1000 output current i out (ma) input voltage v in (v) 0.8 1.0 1.2 1.4 1.6 1.8 9) ripple rejection vs. input bias r1172x301x r1172x301x 200hz 1khz 10khz 100khz 3.0 3.2 3.4 3.1 3.3 3.5 input voltage v in (v) 0 10 20 30 40 50 60 70 80 90 ripple rejection rr(db) v in =4.0v dc +0.2vp-p,i out =1ma 200hz 1khz 10khz 100khz 3.0 3.2 3.4 3.1 3.3 3.5 input voltage v in (v) 0 10 20 30 40 50 60 70 80 90 ripple rejection rr(db) v in =4.0v dc +0.5vp-p,i out =1ma
r1172x 15 r1172x301x r1172x301x 200hz 1khz 10khz 100khz 3.0 3.2 3.4 3.1 3.3 3.5 input voltage v in (v) 0 10 20 30 40 50 60 70 80 90 ripple rejection rr(db) v in =4.0v dc +0.2vp-p,i out =10ma 200hz 1khz 10khz 100khz 3.0 3.2 3.4 3.1 3.3 3.5 input voltage v in (v) 0 10 20 30 40 50 60 70 80 90 ripple rejection rr(db) v in =4.0v dc +0.5vp-p,i out =10ma r1172x301x r1172x301x 200hz 1khz 10khz 100khz 3.0 3.2 3.4 3.1 3.3 3.5 input voltage v in (v) 0 10 20 30 40 50 60 70 80 90 ripple rejection rr(db) v in =4.0v dc +0.2vp-p,i out =100ma 200hz 1khz 10khz 100khz 3.0 3.2 3.4 3.1 3.3 3.5 input voltage v in (v) 0 10 20 30 40 50 60 70 80 90 ripple rejection rr(db) v in =4.0v dc +0.5vp-p,i out =100ma 10) ripple rejection vs. frequency r1172x081x r1172x101x 0.1 10 1 100 frequency f(khz) i out =1ma i out =30ma i out =100ma ripple rejection rr(db) 0 10 20 30 40 50 70 60 80 v in =1.8v dc +0.5vp-p, c out =tantalum 4.7f 0.1 10 1 100 frequency f(khz) i out =1ma i out =30ma i out =100ma ripple rejection rr(db) 0 10 20 30 40 50 70 60 80 90 v in =2.0v dc +0.5vp-p, c out =ceramic 4.7f
r1172x 16 r1172x301x r1172x401x 0.1 10 1 100 frequency f(khz) i out =1ma i out =30ma i out =100ma ripple rejection rr(db) 0 10 20 30 40 50 70 60 80 90 v in =4.0v dc +0.5vp-p, c out =ceramic 4.7f 0.1 10 1 100 frequency f(khz) i out =1ma i out =30ma i out =100ma ripple rejection rr(db) 0 10 20 30 40 50 70 60 80 90 v in =5.0v dc +0.5vp-p, c out =ceramic 4.7f r1172x451x r1172x501x 0.1 10 1 100 frequency f(khz) i out =1ma i out =30ma i out =100ma ripple rejection rr(db) 0 10 20 30 40 50 70 60 80 v in =5.5v dc +0.5vp-p, c out =ceramic 4.7f 0.1 10 1 100 frequency f(khz) i out =1ma i out =30ma i out =100ma ripple rejection rr(db) 0 10 20 30 40 50 70 60 80 v in =6.0v dc +0.5vp-p, c out =ceramic 4.7f 11) line transient response (tr = tf= 5 s, i out = 100ma) r1172x081x r1172x101x 02030 10 40 50 60 70 80 90 100 time t(s) 0.76 0 1 2 3 4 0.78 0.80 0.82 0.86 0.84 0.88 0.90 input voltage v in (v) output voltage v out (v) c out =tantalum 4.7f input voltage output voltage 02030 10 40 50 60 70 80 90 100 time t(s) 0.96 0 1 2 3 4 0.98 1.00 1.02 1.06 1.04 1.08 1.10 input voltage v in (v) output voltage v out (v) c out =ceramic 4.7f input voltage output voltage
r1172x 17 r1172x301x r1172x501x 02030 10 40 50 60 70 80 90 100 time t(s) 2.94 0 1 2 3 4 5 6 2.97 3.00 3.03 3.09 3.06 3.12 3.15 input voltage v in (v) output voltage v out (v) c out =ceramic 4.7f input voltage output voltage 02030 10 40 50 60 70 80 90 100 time t(s) 4.94 0 1 2 3 4 5 6 7 4.97 5.00 5.03 5.09 5.06 5.12 5.15 input voltage v in (v) output voltage v out (v) c out =ceramic 4.7f input voltage output voltage 12) load transient response (tr = tf= 500ns) r1172x081x r1172x081x 02030 10 40 50 60 70 80 90 100 time t(s) 600 400 200 0 0.68 0.74 0.80 0.92 0.86 0.98 1.04 output voltage v in =1.8v,c in =c out = tantalum 4.7f output current i out (ma) output voltage v out (v) output current 046 2 8 10 12 14 16 18 20 time t(s) 150 100 50 0 0.76 0.80 0.84 0.92 0.88 0.96 1.00 output current i out ( m a) output voltage v out (v) output current output voltage v in =1.8v,c in =c out = tantalum 4.7f r1172x081x r1172x081x 02030 10 40 50 60 70 80 90 100 time t(s) 40 20 0 0.76 0.80 0.84 0.92 0.88 0.96 1.00 output voltage v in =1.8v,c in =c out = tantalum 4.7f output current i out ( m a) output voltage v out (v) output current 02030 10 40 50 60 70 80 90 100 time t(s) 40 20 0 0.76 0.80 0.84 0.92 0.88 0.96 1.00 output voltage v in =1.8v,c in =tantalum 4.7f, c out =tantalum 10f output current i out ( m a) output voltage v out (v) output current
r1172x 18 r1172x101x r1172x101x 02030 10 40 50 60 70 80 90 100 time t(s) 600 400 200 0 0.8 0.9 1.0 1.2 1.1 1.3 1.4 output voltage v in =2.0v,c in =c out = ceramic 4.7f output current i out ( m a) output voltage v out (v) output current 02030 10 40 50 60 70 80 90 100 time t(s) 600 400 200 0 0.8 0.9 1.0 1.2 1.1 1.3 1.4 output voltage v in =2.0v,c in =ceramic 4.7f, c out =ceramic 10f output current i out (ma) output voltage v out (v) output current r1172x101x r1172x101x 0812 4 16 202428323640 time t(s) 150 100 50 0 0.96 1.00 1.04 1.12 1.08 1.16 1.20 output current i out (ma) output voltage v out (v) output current output voltage v in =2.0v,c in =c out = ceramic 4.7f 046 2 8 10 12 14 16 18 20 time t(s) 150 100 50 0 0.96 1.00 1.04 1.12 1.08 1.16 1.20 output current i out ( m a) output voltage v out (v) output current output voltage v in =2.0v,c in =ceramic 4.7f, c out =ceramic 10f r1172x101x r1172x101x 02030 10 40 50 60 70 80 90 100 time t(s) 40 20 0 0.90 0.95 1.00 1.10 1.05 1.15 1.20 output voltage output current i out ( m a) output voltage v out (v) output current v in =2.0v,c in =c out = ceramic 4.7f 02030 10 40 50 60 70 80 90 100 time t(s) 40 20 0 0.90 0.95 1.00 1.10 1.05 1.15 1.20 output voltage output current i out ( m a) output voltage v out (v) output current v in =2.0v,c in =ceramic 4.7f, c out =ceramic 10f
r1172x 19 r1172x301x r1172x301x time t(s) 600 400 200 0 2.6 2.8 3.0 3.4 3.2 3.6 3.8 output voltage v in =4.0v,c in =c out = ceramic 4.7f output current i out (ma) output voltage v out (v) output current 0 80 120 40 160 200 240 280 320 360 400 0 8 0 1204 0 160 200 240 280 320 360 400 time t(s) 600 400 200 0 2.6 2.8 3.0 3.4 3.2 3.6 3.8 output voltage output current i out ( m a) output voltage v out (v) output current v in =4.0v,c in =ceramic 4.7f, c out =ceramic 10 f r1172x301x r1172x301x 0812 4 16 202428323640 time t(s) 150 100 50 0 2.96 3.00 3.04 3.12 3.08 3.16 3.20 output current i out (ma) output voltage v out (v) output current output voltage v in =4.0v,c in =c out = ceramic 4.7f 046 2 8 10 12 14 16 18 20 time t(s) 150 100 50 0 2.96 3.00 3.04 3.12 3.08 3.16 3.20 output current i out (ma) output voltage v out (v) output current output voltage v in =4.0v,c in =ceramic 4.7f, c out =ceramic 10f r1172x301x r1172x301x 0 80 120 40 160 200 240 280 320 360 400 time t(s) 40 20 0 2.90 2.95 3.00 3.10 3.05 3.15 3.20 output voltage v in =4.0v,c in =c out = ceramic 4.7f output current i out (ma) output voltage v out (v) output current 0 80 120 40 160 200 240 280 320 360 400 time t(s) 40 20 0 2.90 2.95 3.00 3.10 3.05 3.15 3.20 output voltage output current i out (ma) output voltage v out (v) output current v in =4.0v,c in =ceramic 4.7f, c out =ceramic 10f
r1172x 20 r1172x501x r1172x501x time t(s) 600 400 200 0 4.50 4.75 5.00 5.50 5.25 5.75 6.00 output voltage output current i out ( m a) output voltage v out (v) output current v in =6.0v,c in =c out = ceramic 4.7f 0 80 120 40 160 200 240 280 320 360 400 046 2 8 10 12 14 16 18 20 time t(s) 150 100 50 0 4.96 5.00 5.04 5.12 5.08 5.16 5.20 output current i out (ma) output voltage v out (v) output current output voltage v in =6.0v,c in =c out = ceramic 4.7f r1172x501x 0 80 120 40 160 200 240 280 320 360 400 time t(s) 40 20 0 4.90 4.95 5.00 5.10 5.05 5.15 5.20 output voltage v in =6.0v,c in =c out = ceramic 4.7f output current i out ( m a) output voltage v out (v) output current 13) turn-on speed with ce pin control r1172x081x r1172x501x i out =0ma i out =100ma i out =300ma v ce -20 0 20 40 60 80 100 120 140 160 180 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.4 0.8 1.2 1.6 2.0 time t(s) v in =1.8v,c in =c out = tantalum 4.7f ce input voltage v ce (v) output voltage v out (v) i out =0ma i out =100ma i out =300ma v in (v) -40 60 160 260 360 0 2 4 6 8 10 0 2 4 6 8 time t( s) v in =6.0v,c in =c out = ceramic 4.7f ce input voltage v ce (v) output voltage v out (v) 0
r1172x 21 14) turn-off speed with ce pin control r1172x081d r1172x501d -0.4 0.6 1.6 2.8 3.6 0.0 0.6 0.4 0.2 1.4 1.2 1.0 0.8 1.6 1.8 2.0 time t(ms) v in =1.8v,c in =c out = tantalum 4.7f ce input voltage v ce (v) output voltage v out (v) 0.8 0.4 0.0 1.2 1.6 2.0 i out =0ma i out =100ma i out =300ma v in (v) 0 i out =0ma i out =100ma i out =300ma v in (v) -0.2 0.2 0.6 1.41.0 1.8 0 14 12 10 8 6 4 2 8 6 4 2 0 time t(ms) v in =6.0v,c in =c out = tantalum 4.7f ce input voltage v ce (v) output voltage v out (v) 0 15) inrush current (i out = 100ma, c in = none) r1172x081x r1172x081x -40 0 40 12080 160 2.4 600 400 200 0 1.6 0.8 0.0 v in =2.0v,c out = tantalum 4.7f time t(s) c e input voltage v ce ,output voltage v out (v) output voltage inrush current ce input voltage inrush current i vdd ( m a) -40 0 40 12080 160 2.4 1.6 0.8 0.0 time t(s) v in =2.0v,c out = tantalum 10f c e input voltage v ce ,output voltage v out (v) output voltage inrush current ce input voltage inrush current i vdd ( m a) 600 400 200 0
r1172x 22 r1172x301x r1172x301x -40 0 40 12080 160 5 600 400 200 0 4 3 1 0 2 time t(s) v in =4.0v,c out = ceramic 4.7f c e input voltage v ce ,output voltage v out (v) output voltage inrush current ce input voltage inrush current i vdd ( m a) -40 0 40 12080 160 5 4 3 1 0 2 time t(s) v in =4.0v,c out = ceramic 10f c e input voltage v ce ,output voltage v out (v) output voltage inrush current ce input voltage inrush current i vdd ( m a) 600 400 200 0 r1172x501x r1172x501x -40 0 40 12080 160 8 600 400 200 0 6 4 0 2 time t(s) v in =6.0v,c out = ceramic 4.7 f inrush current i vdd ( m a) c e input voltage v ce ,output voltage v out (v) output voltage inrush current ce input voltage -40 0 40 12080 160 8 6 4 0 2 time t(s) v in =6.0v,c out = ceramic 10f inrush current i vdd ( m a) c e input voltage v ce ,output voltage v out (v) output voltage inrush current ce input voltage 600 400 200 0
r1172x 23 esr vs. output current when using these ics, consider the following points: v in c in v ou t ce r1172xxx1b c out spec trum a nalyzer i out esr v in s.a gnd 0.8v to 3.3v output type: c out = 4.7 f (kyocera cm105x5r475m06ab) 5.0v output type : c out = 4.7 f (kyocera ct21x5r475k06ab) as an output capacitor for this ic, ceramic capacitor is recommendable. however, other low esr type capacitor can be used with this ic. for your reference, noise level is tested, and if the noise level is 40 v or less than 40 v, the esr values are plotted as stable area. upper limit is described in the nex t five graphs, or esr vs. output current. (hatched area is the stable area.) measurement conditions ? v in = v out + 1v ? frequency band: 10hz to 1mhz ? temperature : 25 c r1172x081x r1172x081x 0 200 400 600 800 1000 load current i out (ma) topt=85c topt=-40c 0.01 100 1.0 0.1 10 esr() v in =1.4v to 6.0v, c in =c out =ceramic 4.7f 0 200 400 600 800 1000 load current i out (ma) topt=85c topt=-40c 0.01 100 1.0 0.1 10 esr() v in =1.4v to 6.0v, c in =ceramic 4.7 f, c out =ceramic 10 f
r1172x 24 r1172x101x r1172x301x 0 200 400 600 800 1000 load current i out (ma) topt=85c topt=-40c 0.01 100 1.0 0.1 10 esr() v in =1.4v to 6.0v, c in =c out =ceramic 4.7f 0 200 400 600 800 1000 load current i out (ma) topt=85c topt=-40c 0.01 100 1.0 0.1 10 esr() v in =3.1v to 6.0v, c in =c out =ceramic 4.7f r1172x501x 0 200 400 600 800 1000 load current i out (ma) topt=85c topt=-40c 0.01 100 1.0 0.1 10 esr() v in =5.3v to 6.0v, c in =c out =ceramic 4.7f
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