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rp173x series 11v input 150ma ldo no.ea-256-110621 1 outline the rp173x series are cmos-based vo ltage regulator ics featuring 150 ma output and low supply current of typ.2.0 a. each of these ics consists of a voltage referenc e unit, an error amplifier, a resistor-net for voltage setting, a current limit circuit, a chip enable circuit an d a reverse current protecti on circuit. rp173x series are suitable for the power source such as the equipment bei ng in the standby-mode. a version with /ce input pin has reduced ce pull-up resistance to make its supply current ultra low. the rp173x series have max.11v input voltage and are applicable to the portable communication equipment that require the 2-cell li-ion battery. also they are applicable to the non-portable communication equipments. as this series includes reverse current protection circui t, there is little leakage curren t, if it's used as back-up circuit. since the packages for these ics are the sot-23-5 pac kage, sc-88a, or dfn(plp)1010-4 of 1mm square, high density mounting of the ics on boards is possible. features ? output curren t ............................................................. typ. 150ma ? supply current ............................................................. typ. 2.0 a ? standby current ........................................................... typ. 0.2 a ? input voltage range .................................................... 2.5v to set v out + 6.5v (max.11v) ? output voltage ra nge.................................................. 1.2v to 5. 5v (0.1v steps) ( for other voltages, please refer to mark informations.) ? dropout voltage ........................................................... typ. 0.13v ( i out = 30ma, v out = 3.0v) typ. 0.90v ( i out = 150ma, v out = 3.0v) ? output voltage accuracy.............................................. 1.0%(1.5v < v out 5.5v, topt = 25 c) ? temperature-drift coefficient of output voltage........... typ. 100ppm/ c ? line regulation ............................................................ typ. 0.02%/v ? packages ..................................................................... dfn( plp)1010-4, sc-88a, sot-23-5 ? built-in reverse current protection circuit ? short current li mit....................................................... typ. 45ma ? built-in peak current limit circuit ? output capa citors ......................................................... 0.1 f or more applications ? power source for portable communication equipments. ? power source for battery-powerd equipments. ? power source for electrical appliances such as cameras, vsrs and camcorders. ? power source for digital home appliances.
rp173x 2 block diagrams rp173xxxxa rp173xxxxb v dd gnd v out ce vref current limit reverse detecto r v dd gnd v out ce vref current limit reverse detector (pull-up resistance is not built-in.) rp173xxxxd v dd gnd v out ce vref current limit reverse detector selection guide the output voltage, auto discharge func tion, package for the ics can be selected at the user?s request. product name package quantity per reel pb free halogen free rp173kxx1 ? -tr dfn(plp)1010-4 10,000 pcs yes yes rp173qxx2 ? -tr-fe sc-88a 3,000 pcs yes yes rp173nxx1 ? -tr-fe sot-23-5 3,000 pcs yes yes xx : the output voltage can be designated in the rang e of 1.2v (12) to 5.5v (55) in 0.1v steps. (for other voltages, please refer to mark informations.) ? : the auto discharge function at off state are options as follows. (a) "l" acrive, without auto discharge function at off state (pull-up resistance is not built-in.) (b) "h" active, without aut o discharge function at off state (d) "h" active, with auto discharge function at off state
rp173x 3 pin configurations ? dfn ( plp ) 1010-4 ? sc-88a ? sot-23-5 top view 2 1 3 4 bottom view 1 2 4 3 ? 54 1 3 2 (mark side) 1 2 3 4 5 (mark side) pin descriptions z dfn(plp)1010-4 pin no. symbol description 1 v out output pin 2 gnd ground pin 3 ce /ce chip enable pin 4 v dd input pin ? ) 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. z sc-88a pin no. symbol description 1 ce /ce chip enable pin 2 nc no connection 3 gnd ground pin 4 v out output pin 5 v dd input pin z sot-23-5 pin no. symbol description 1 v dd input pin 2 gnd ground pin 3 ce /ce chip enable pin 4 nc no connection 5 v out output pin
rp173x 4 absolute maximum ratings symbol item rating unit v in input voltage 12 v v ce input voltage (ce pin) 12 v v out output voltage ? 0.3 to 6.0 v i out output current 165 ma power dissipation (dfn(plp)1010-4)* 400 power dissipation (sc-88a)* 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 safe ty 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.
rp173x 5 electrical characteristics unless otherwise noted,v in =set v out +1.0v(v out >1.5), i out =1ma,c in = c out = 0.1 f. the values in are applicable under the condition of ? 40c t opt 85c. ? rp173xxxxa topt = 25 c symbol item conditons min. typ. max. unit v out 1.5v 0.99 1.01 v t opt = 25 c v out 1.5v ? 15 15 mv v out 1.5v 0.982 1.018 v v out output voltage ? 40 c t opt 85 c v out 1.5v ? 28 27 mv i out output current 150 ma v out / i out load regulation 0.1ma i out 150ma ? 30 ? 3 35 mv v dif dropout voltage refer to the "dropout voltage" i ss supply current i out = 0ma 2.0 3.7 a i standby standby current v in = v in max. v ce = 0v 0.2 0.6 a v out / v in load regulation set v out + 0.5v v in v in max. when v out 2.0v, 2.5v v in v in max. 0.02 0.20 %/v rr ripple rejection = 1khz, rippke 0.2vp ? p,i out = 10ma when v out 2.0v,v in = 3.0v 30 db 1.2 v out < 4.5 2.5 vset + 6.5 v in input voltage 4.5 v out 5.5 2.5 11 v v out / t opt output voltage temperature coefficient ? 40 c t opt 85 c 100 ppm / i sc short current limit circuit v out = 0v 45 ma v ceh ce input voltage"h" 1.7 v v cel ce input voltage"l" 0.8 v i rev reverse current 0 v in 11.0v, v out 1.5v 0 0.16 a v rev _ det * reverse current protection mode detection offset, v rev = v dd ? v out 0 v in 11.0v, v out 1.5v 55 100 mv v rev _ rel * reverse current protection mode release offset 0 v in 11.0v, v out 1.5v 70 120 mv the values in have been tested and guaranteed by design engineering. all of units are tested and specified unde r the pulse load conditions such that tj t opt 25 c except for ripple rejection and output voltage temperature coefficient. *) the operation coverage of the reve rse current protection circuit is v out 1.5v. however, under the condition of v in = v out = 0v, always the reverse current protection circuit is operating.
rp173x 6 unless otherwise noted,v in =set v out +1.0v(v out >1.5), i out =1ma, c in = c out = 0.1 f. the values in are applicable under the condition of ? 40c t opt 85c. ? rp173xxxxb/d topt = 25 c symbol item conditons min. typ. max. unit v out 1.5v 0.99 1.01 v t opt = 25 c v out 1.5v ? 15 15 mv v out 1.5v 0.982 1.018 v v out output voltage ? 40 c t opt 85 c v out 1.5v ? 28 27 mv i out output current 150 ma v out / i out load regulation 0.1ma i out 150ma ? 30 ? 3 35 mv v dif dropout voltage refer to the "dropout voltage" i ss supply current i out = 0ma 2.0 3.7 a i standby standby current v in = v in _max. v ce = 0v 0.2 0.6 a v out / v in load regulation set v out + 0.5v Q v in Q v in _max. when v out 2.0v, 2.5v v in set v out +6.5v 0.02 0.20 %/v rr ripple rejection = 1khz, rippke 0.2vp ? p,i out = 10ma when v out 2.0v,v in = 3.0v 30 db 1.2 v out < 4.5 2.5 vset + 6.5 v in input voltage 4.5 v out 5.5 2.5 11 v v out / t opt output voltage temperature coefficient ? 40 c t opt 85 c 100 ppm / i sc short current limit circuit v out = 0v 45 ma i pd ce pull-down current 0.30 0.90 a v ceh ce input voltage"h" 1.7 v v cel ce input voltage"l" 0.8 v i rev reverse current 0 v in 11.0v, v out 1.5v 0 0.16 a v rev _ det * reverse current protection mode detection offset, v rev = v dd ? v out 0 v in 11.0v, v out 1.5v 55 100 mv v rev _ rel * reverse current protection mode release offset 0 v in 11.0v, v out 1.5v 70 120 mv r low autodischarge nch tr. on resistance d version only v in = 7.0v, v ce = 0v 380 the values in have been tested and guaranteed by design engineering. all of units are tested and specified unde r the pulse load conditions such that tj t opt = 25 c except for ripple rejection and output voltage temperature coefficient. *) the operation coverage of the reve rse current protection circuit is v out 1.5v. however, under the condition of v in = v out = 0v, always the reverse current protection circuit is operating.
rp173x 7 ? dropout voltage topt = 25 c dropout voltage v dif (v) output voltage v out (v) condition typ. max. 1.2 v out < 1.3 1.68 2.59 1.3 v out < 1.5 1.63 2.49 1.5 v out < 1.8 1.48 2.23 1.8 v out < 2.3 1.16 2.19 2.3 v out < 3.0 0.90 1.47 3.0 v out < 4.0 0.61 1.05 4.0 v out 5.5 i out = 150ma 0.39 0.76 the values in are applicable under the condition of ? 40c t opt 85c. 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.
rp173x 8 typical applications c1 rp173x series v dd v out ce gnd c2 v out external parts example: c2: ceramic capacitor 0.1f, murata,grm155b31c104ka87d technical notes when using the ics, please note 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 0.1 f or more capacitor c2. in case of using a tantalum capacitor, the output may be unstable due to inappropriate esr. therefore, the full range of operating conditions for the capacito r in the application should be considered. 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 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. power activation if the ics are started up with v in and v ce under the no-load condition, the both pin voltages have to be started up with faster than 2.0v/s. if the ic is started up with sl ower than 2.0v/s under the no-load condition, start up the ic only with v ce .
rp173x 9 reverse current protection circuit the rp173 series include a reverse current protecti on circuit, which stops the reverse current from v out pin to v dd pin or to gnd pin when v out becomes higher than v in . usually, the ldo using pch output transist or contains a parasitic diode between v dd pin and v out pin. therefore, if v out is higher than v in , the parasitic diode becomes forward dire ction. as a result, the current flows from v out pin to v dd pin. the ics of this series switches the mode to the reverse current protection mode before v in becomes lower than v out by connecting the parasitic diode of pch output tran sistor to the backward direction, and connecting the gate to v out pin. as a result, the pch output transistor is turned off and the all the current pathways from v out pin to gnd pin are shut down to maintain the reverse current lower than [i rev ] of the electrical characteristics. switching to either the normal mode or to the revers e current protection mode is determined by the magnitude of v in voltage and v out voltage. for the stable operation, offset and hysteresis are set as the threshold. the detection/ release thresholds of both normal and re verse current protection modes are specified by [v rev_det ] and [v rev_rel ] of the electrical characteristics. therefore, the minimum dropout voltage under the small load current condition is restricted by the value of [v rev_rel ]. fig.1 and fig.2 show the diagrams of each mode, and fig.3 shows the l oad characteristics of each mode. when giving the v out pin a constant-voltage and decreasing the v in voltage, the dropout voltage will become lower than the [v rev_det ]. as a result, the reverse current protection starts to function to stop the load current. by increasing the dropout voltage higher than the [v rev_rel ], the protection mode will be released to let the load current to flow. if the dropout voltage to be used is lower than [v rev_rel ], the detection and the release may be repeated. the operation coverage of the reverse current protection circuit is v out 1.5v. however, under the condition of v in =0v, always the reverse current protection mode is operating. fig. 1 normal mode fig. 2 reverse current protection mode fig. 3 reverse current protection mode detection/ release & output/reverse current input/output voltage v rev_ det v rev_ rel v out v in 0 reverse current protection mode normal mode normal mode v in /v out [v] i out /i rev i out i rev reverse current/ output current characteristics
rp173x 10 test circuits c1 rp173x series v dd v out ce gnd v c2 v out i out c1=ceramic 0.1 f c2=ceramic 0.1 f basic test circuit c1 rp173x series v dd v out ce gnd c2 a i ss c1=ceramic 0.1 f c2=ceramic 0.1 f v out supply current test circuit rp173x series v dd v out ce gnd c2 pulse generator i out c2=ceramic 0.1 f p. g. ripple rejection test circuit c1 rp173x series v dd v out ce gnd c2 i outa i outb c1=ceramic 0.1 f c2=ceramic 0.1 f v out load transient response test circuit
rp173x 11 typical characteristics 1) output voltage vs. output current c 1 = ceramic 0.1 f, c2 = ceramic 0.1 f, t opt = 25 c rp173x12xx rp173x18xx 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 100 200 300 400 output current i out (ma) output voltage v out (v) vdd=2.5v vdd=3.2v vdd=4.2v vdd=5.5v vdd=7.7v 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 100 200 300 400 output current i out (ma) output voltage v out (v) vdd=2.8v vdd=3.8v vdd=5.5v vdd=8.3v 0 rp173x30xx rp173x55xx 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 100 200 300 400 output current i out (ma) output voltage v out (v) vdd=4v vdd=5.5v vdd=9.5v 0 0 1 2 3 4 5 6 0 100 200 300 400 output current i out (ma) output voltage v out (v) vdd=6.5v vdd=11v 0 2 output voltage vs. input voltage ( c1 = ceramic 0.1 f, c2 = ceramic 0.1 f, t opt = 25 c rp173x12xx rp173x18xx 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0246 input voltage v in (v) output voltage v out (v) iout=1ma iout=30ma iout=50ma 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 02468 input voltage v in (v) output voltage v out (v) iout=1ma iout=30ma iout=50ma 0
rp173x 12 rp173x30xx rp173x55xx 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 02468 input voltage v in (v) output voltage v out (v) iout=1ma iout=30ma iout=50ma 0 0 1 2 3 4 5 6 0246810 input voltage v in (v) output voltage v out (v) iout=1ma iout=30ma iout=50ma 3 supply current vs. input voltage c1 = ceramic 0.1 f, c2 = ceramic 0.1 f, t opt = 25 c rp173x12xx rp173x18xx 0.0 0.5 1.0 1.5 2.0 2.5 0246 input voltage v out (v) supply current i ss (a) 0 0.0 0.5 1.0 1.5 2.0 2.5 02468 input voltage v out (v) supply current i ss (a) 0 rp173x30xx rp173x55xx 0.0 0.5 1.0 1.5 2.0 2.5 02468 input voltage v out (v) supply current i ss (a) 0 0.0 0.5 1.0 1.5 2.0 2.5 0246810 input voltage v out (v) supply current i ss (a) 0
rp173x 13 4 output voltage vs. temperature ( c1 = ceramic 0.1 f, c2 = ceramic 0.1 f, i out = 1ma rp173x12xx rp173x18xx 1.17 1.18 1.19 1.20 1.21 1.22 1.23 1.24 -50 -25 0 25 50 75 100 temperature topt (c) output voltage v out (v) 1.77 1.78 1.79 1.80 1.81 1.82 1.83 1.84 -50 -25 0 25 50 75 100 temperature topt (c) output voltage v out (v) rp173x30xx rp173x55xx 2.96 2.97 2.98 2.99 3.00 3.01 3.02 3.03 -50 -25 0 25 50 75 100 temperature topt (c) output voltage v out (v) 5.42 5.44 5.46 5.48 5.50 5.52 5.54 5.56 -50 -25 0 25 50 75 100 temperature topt (c) output voltage v out (v) 5 dropout voltage vs. output current c1 = ceramic 0.1 f, c2 = ceramic 0.1 f rp173x12xx rp173x30xx 0 200 400 600 800 1000 1200 1400 1600 1800 2000 0 25 50 75 100 125 150 output current i out (ma) dropout voltage v dif (mv) 85 25 -40 0 100 200 300 400 500 600 700 800 0 25 50 75 100 125 150 output current i out (ma) dropout voltage v dif (mv) 85 25 -40
rp173x 14 rp173x55xx 0 50 100 150 200 250 300 350 400 450 500 0 25 50 75 100 125 150 output current i out (ma) dropout voltage v dif (mv) 85 25 -40 6 dropout voltage vs. set output voltage c1 = ceramic 0.1 f, c2 = ceramic 0.1 f, t opt = 25 c rp173x 0 200 400 600 800 1000 1200 1400 1600 1800 0123456 set output voltage v reg (v) dropout voltage v dif (mv) iout=150ma iout=50ma iout=30ma 7 minimum operating voltage c1 = ceramic 0.1 f, c2 = ceramic 0.1 f, t opt =? 40 85 c 2.0 2.5 3.0 3.5 4.0 0 25 50 75 100 125 150 output current i out (ma) input voltage v in (v)
rp173x 15 8 ripple rejection vs. input vias voltage c1 = none, c2 = ceramic 0.1 f, ripple = 0.2vp-p, t opt = 25 c rp173x28xx rp173x28xx 0 10 20 30 40 50 60 246810 input bias voltage v in (v) ripple rejection rr (db) 100hz 1khz 10khz 100khz i out =1ma 0 10 20 30 40 50 60 246810 input bias voltage v in (v) ripple rejection rr (db) 100hz 1khz 10khz 100khz i out =30ma rp173x28xx 0 10 20 30 40 50 60 246810 input bias voltage v in (v) ripple rejection rr (db) 100hz 1khz 10khz 100khz i out =50ma 9 ripple rejection vs.temperature c1 = none, c2 = ceramic 0.1 f, ripple = 0.2vp-p, t opt = 25 c rp173x12xx rp173x18xx 0 10 20 30 40 50 60 70 0.1 1 10 100 1000 frequency f (khz) ripple rejection rr (db) iout=1ma iout=30ma iout=50ma v in =2.5v 0 10 20 30 40 50 60 70 0.1 1 10 100 1000 frequency f (khz) ripple rejection rr (db) iout=1ma iout=30ma iout=50ma v in =2.8v
rp173x 16 rp173x30xx rp173x55xx 0 10 20 30 40 50 60 70 0.1 1 10 100 1000 frequency f (khz) ripple rejection rr (db) iout=1ma iout=30ma iout=50ma v in =4.0v 0 10 20 30 40 50 60 70 0.1 1 10 100 1000 frequency f (khz) ripple rejection rr (db) iout=1ma iout=30ma iout=50ma v in =6.5v 10 input transient response c1 = none, c2 = ceramic 0.1 f, tr = tf = 5.0 s, t opt = 25 c rp173x12xx rp173x18xx 0.6 0.8 1.0 1.2 1.4 1.6 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms) output voltage v out (v) 2.5 3.0 3.5 4.0 input voltage v in (v) input voltage output voltage i out =1ma 1.2 1.4 1.6 1.8 2.0 2.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms) output voltage v out (v) 2.5 3.0 3.5 4.0 input voltage v in (v) input voltage output voltage i out =1ma rp173x30xx rp173x55xx 2.4 2.6 2.8 3.0 3.2 3.4 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms) output voltage v out (v) 4.0 4.5 5.0 5.5 input voltage v in (v) input voltage output voltage i out =1ma 4.9 5.1 5.3 5.5 5.7 5.9 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms) output voltage v out (v) 6.5 7.0 7.5 8.0 input voltage v in (v) input voltage output voltage i out =1ma
rp173x 17 rp173x12xx rp173x18xx 0.6 0.8 1.0 1.2 1.4 1.6 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 tim e t (m s ) output voltage v out (v) 2.5 3.0 3.5 4.0 input voltage v in (v) input voltage output voltage i out =30ma 1.2 1.4 1.6 1.8 2.0 2.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 tim e t (m s ) output voltage v out (v) 2.5 3.0 3.5 4.0 input voltage v in (v) input voltage output voltage i out =30ma rp173x30xx rp173x55xx 2.4 2.6 2.8 3.0 3.2 3.4 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms) output voltage v out (v) 4.0 4.5 5.0 5.5 input voltage v in (v) input voltage output voltage i out =30ma 4.9 5.1 5.3 5.5 5.7 5.9 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms) output voltage v out (v) 6.5 7.0 7.5 8.0 input voltage v in (v) input voltage output voltage i out =30ma 11 load transient response c1 = ceramic 0.1 f,c2 = ceramic ? 0.1 f, tr = tf = 0.5 s,t opt = 25 c rp173x12xx rp173x18xx 0.6 0.8 1.0 1.2 1.4 1.6 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms) output voltage v out (v) 0 10 20 output current i out (ma) output current 1ma ? 10ma output voltage v in =2.5v 1.2 1.4 1.6 1.8 2.0 2.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms ) output voltage v out (v) 0 10 20 output current i out (ma) output current 1ma ? 10ma output voltage v in =2.8v
rp173x 18 rp173x30xx rp173x55xx 2.4 2.6 2.8 3.0 3.2 3.4 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms) output voltage v out (v) 0 10 20 output current i out (ma) output current 1ma ? 10ma output voltage v in =4.0v 4.9 5.1 5.3 5.5 5.7 5.9 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms) output voltage v out (v) 0 10 20 output current i out (ma) output current 1ma ? 10ma output voltage v in =6.5v rp173x12xx rp173x18xx 0.3 0.6 0.9 1.2 1.5 1.8 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms) output voltage v out (v) 0 50 100 150 output current i out (ma) output current 50ma ? 100ma output voltage v in =4.0v 0.9 1.2 1.5 1.8 2.1 2.4 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms ) output voltage v out (v) 0 50 100 150 output current i out (ma) output current 50ma ? 100ma output voltage v in =4.0v rp173x30xx rp173x55xx 2.1 2.4 2.7 3.0 3.3 3.6 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms) output voltage v out (v) 0 50 100 150 output current i out (ma) output current 50ma ? 100ma output voltage v in =4.0v 4.6 4.9 5.2 5.5 5.8 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 time t (ms ) output voltage v out (v) 0 50 100 150 output current i out (ma) output current 50ma ? 100ma output voltage v in =6.5v
rp173x 19 12 turn on speed c1 = ceramic 0.1 f, c2 = ceramic 0.1 f, t opt = 25 c rp173x12xx rp173x18xx 0.0 0.5 1.0 1.5 -100 -50 0 50 100 150 200 250 300 350 400 time t (s) output voltage v out (v) 0 2 4 6 ce input voltage v ce (v) iout=0ma iout=1ma iout=30ma iout=100ma ce input voltage 0v ? 2.5v output voltage ce input voltage 0v ? 4.0v v in =2.5v (i out =0,1,30ma) v in =4.0v (i out =100ma) 0 0.0 1.0 2.0 -100 -50 0 50 100 150 200 250 300 350 400 time t (s ) output voltage v out (v) 0 2 4 6 ce input voltage v ce (v) iout=0ma iout=1ma iout=30ma iout=100ma ce input voltage 0v ? 2.8v output voltage ce input voltage 0v ? 4.0v v in =2.8v (i out =0,1,30ma) v in =4.0v (i out =100ma) 0 rp173x30xx rp173x55xx 0.0 1.0 2.0 3.0 -100 -50 0 50 100 150 200 250 300 350 400 time t (s) output voltage v out (v) 0 2 4 6 ce input voltage v ce (v) iout=0ma iout=1ma iout=30ma iout=100ma output voltage ce input voltage 0v ? 4.0v v in =4.0v 0 0.0 2.0 4.0 6.0 -100 -50 0 50 100 150 200 250 300 350 400 time t (s ) output voltage v out (v) 0 3 5 8 ce input voltage v ce (v) iout=0ma iout=1ma iout=30ma iout=100ma output voltage ce input voltage 0v ? 6.5v v in =6.5v 0 13 turn off speed with ce pin c1 = ceramic 0.1 f, c2 = ceramic 0.1 f, t opt = 25 c rp173x12xx rp173x18xx 0.0 0.5 1.0 1.5 -100 -50 0 50 100 150 200 250 300 350 400 times t (s ) output voltage v out (v) 0 2 4 6 ce input voltage v ce (v) iout=0ma iout=1ma iout=30ma iout=100ma output voltage ce input voltage 2.5v ? 0v ce input voltage 4.0v ? 0v v in =2.5v(i out =0,1,30ma) v in =4.0v(i out =100ma) 0 0.0 1.0 2.0 -100 -50 0 50 100 150 200 250 300 350 400 times t (s ) output voltage v out (v) 0 2 4 6 ce input voltage v ce (v) iout=0ma iout=1ma iout=30ma iout=100ma output voltage ce input voltage 2.8v ? 0v ce input voltage 4.0v ? 0v v in =2.8v(i out =0,1,30ma) v in =4.0v(i out =100ma) 0
rp173x 20 rp173x30xx rp173x55xx 0.0 1.5 3.0 4.5 -100 -50 0 50 100 150 200 250 300 350 400 times t (s) output voltage v out (v) 0 2 4 6 ce input voltage v ce (v) iout=0ma iout=1ma iout=30ma iout=100ma ce input voltage 4.0v ? 0v output voltage v in =4.0v 0 0.0 2.0 4.0 6.0 -100 -50 0 50 100 150 200 250 300 350 400 times t (s ) output voltage v out (v) 0.0 2.5 5.0 7.5 ce input voltage v ce (v) iout=0ma iout=1ma iout=30ma iout=100ma ce input voltage 6.5v ? 0v output voltage v in =6.5v 0 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 conditi ons 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 2mhz temperature : ? 40 ? c to 85 ? c c1,c2 :0.1 f rp173x0121x rp173x301x 0.01 0.1 1 10 100 0 25 50 75 100 125 150 output current (ma) esr ( ? ) v in =2.5v 7.7v 0.01 0.1 1 10 100 0 25 50 75 100 125 150 output current (ma) esr ( ? ) v in =3.0v 9.5v
rp173x 21 rp173x551x 0.01 0.1 1 10 100 0 25 50 75 100 125 150 output current (ma) esr ( ? ) v in =5.5v 11v
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