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rp102x series low noise 300ma ldo regulator no.ea-141-100114 1 outline the rp102x series are cmos-based voltage regulator ics with high output voltage accuracy, extremely low supply current, low on-resistance, and high ripple rejecti on. each of these ics consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, a current limit circuit and a chip enable circuit. these ics perform with low dropout voltage and "chip enabl e" function. the line transient response and load transient response of the rp102x series are excellent, thus these ics are very suitable for the power supply for hand-held communication equipment. the output voltage of these ics is fixed with high accuracy. since the packages for these ics are sot-23-5, dfn(plp)1820-6, and wlcsp-4-p2, therefore high den sity mounting of the ics on boards is possible. features ? supply curre nt ......................................................typ. 50 a ? standby mode .......................................................typ. 0.1 a ? dropout voltage ....................................................typ. 0.12v (i out = 300ma, v out = 2.8v) ? ripple rejectio n....................................................typ. 80db (f = 1khz) ? temperature-drift coefficient of output voltage ...typ. 20ppm/ c ? line regulation .....................................................typ. 0.02%/v ? output voltage accuracy....................................... 0.8% ? packages ..............................................................wlcsp- 4-p2, dfn(plp)1820-6, sot-23-5 ? input voltage range .............................................1.7v to 5.25v ? output voltage range...........................................1.2v to 3.3v (0.1v steps) ( for other voltages, please refer to mark informations.) ? built-in fold back protection circuit .....................typ. 50ma (current at short mode) ? ceramic capacitors are recomm ended to be used with this ic ......c in = c out = 1 f or more applications ? power source for portable communication equipment. ? power source for electrical appliances such as cameras, vcrs and camcorders. ? power source for battery-powered equipment.
rp102x 2 block diagrams rp102xxx1b rp102xxx1d v dd gnd v out ce vref current limit v dd gnd v out ce vref current limit selection guide the output voltage, auto discharge functi on, package, and the taping type, et c. for the ics can be selected at the user?s request. product name package quantity per reel pb free halogen free rp102zxx1 ? -tr-f wlcsp-4-p2 5,000 pcs yes yes rp102kxx1 ? -tr dfn(plp)1820-6 5,000 pcs yes yes rp102nxx1 ? -tr-fe sot-23-5 3,000 pcs yes yes xx : the output voltage can be designated in the rang e from 1.2v(12) to 3.3v(33) in 0.1v steps. (for other voltages, please refer to mark informations.) ? : ce pin polarity and auto discharge functi on at off state are options as follows. (b) "h" active, without aut o discharge function at off state (d) "h" active, with auto discharge function at off state
rp102x 3 pin configurations ? wlcsp-4-p2 ? dfn(plp)1820-6 ? sot-23-5 mark side bump side 4 1 3 2 4 1 3 2 top view 6 54 123 bottom view 4 56 321 ? 1 2 3 4 5 (mark side) pin description ? wlcsp-4-p2 pin no symbol pin description 1 v dd input pin 2 ce chip enable pin ("h" active) 3 gnd ground pin 4 v out output pin ? dfn(plp)1820-6 pin no symbol pin description 1 v out output pin ? 2 2 v out output pin ? 2 3 gnd ground pin 4 ce chip enable pin ("h" active) 5 v dd input pin ? 2 6 v dd input pin ? 2 ? 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. ? 2) no.1 pin and no.2 pin, no.5 pin and no.6 pin of dfn(plp)1820-6 package must be wired when it is mounted on board. ? sot-23-5 pin no symbol pin description 1 v dd input pin 2 gnd ground pin 3 ce chip enable pin ("h" active) 4 nc no connection 5 v out output pin
rp102x 4 absolute maximum ratings symbol item rating unit v in input voltage 6.0 v v ce input voltage (ce pin) 6.0 v v out output voltage ? 0.3 to v in + 0.3 v i out output current 400 ma power dissipation (wlcsp-4-p2) ? 530 power dissipation (sot-23-5) ? 420 p d power dissipation (dfn(plp)1820-6) ? 880 mw 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 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. 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 devices may receive seriou s damage when they conti nue to operate over the recommended operating conditions.
rp102x 5 electrical characteristics ? rp102xxx1b/d v in = set v out + 1v for v out options grater than 1.5v. v in = 2.5v for v out < = = 1ma, c in = c out = 1 f, unless otherwise noted. topt = 25 c symbol item conditions min. typ. max. unit v out > 2.0v 0.992 1.008 v v out output voltage v in = set v out + 1v v out < = ? 16 + 16 mv i out output current 300 ma 1ma < = < = v out / i out load regulation 1ma < = < = = 0ma 50 70 a istandby supply current (standby) v ce = 0v 0.1 2.0 a v out / v in line regulation set v out + 0.5v < = < = = 1khz, ripple 0.2vp-p v in = set v out + 1v, i out = 30ma (in case that v out < = = 3v) 80 db v in input voltage* 1.7 5.25 v v out / t opt output voltage temperature coefficient ? 40 c < = < = c 20 ppm / c i sc short current limit v out = 0v 50 ma i pd ce pull-down current 0.05 0.3 0.6 a v ceh ce input voltage ?h? 1.1 v v cel ce input voltage ?l? 0.3 v en output noise bw = 10hz to 100khz, i out = 30ma 30 vrms r low low output nch tr. on resistance (of d version) v in = 4v v ce = 0v 30 ? ) the maximum input voltage of the electrical charac teristics is 5.25v. in case of exceeding this specification, the ic must be oper ated on condition that the input voltage is up to 5.5v and the total operating time is within 500hrs. ? electrical characteristics by output voltage topt = 25 c dropout voltage v dif (v) output voltage v out (v) condition typ. max. condition typ. max. 1.2v < = v out < 1.5v 0.145 - 0.290 0.500 1.5v < = v out < 1.7v 0.110 0.160 0.220 0.320 1.7v < = v out < 2.0v 0.100 0.140 0.200 0.280 2.0v < = v out < 2.5v 0.085 0.120 0.170 0.240 2.5v < = v out < 2.8v 0.070 0.100 0.140 0.200 2.8v < = v out < = 3.3v i out = 150ma 0.060 0.095 i out = 300ma 0.120 0.190
rp102x 6 typical application c1 rp102x series v dd v out ce gnd c2 (external components) c2 1.0 f murata: grm155b31a105ke15 technical notes when using these ics, consider the following points: phase compensation in these ics, phase compensation is made for securing st able operation even if the load current is varied. for this purpose, use a capacitor c2 with good frequency ch aracteristics and esr (equivalent series resistance). (note: if additional ceramic capacitors are connected with parallel to the output pin with an output capacitor for phase compensation, the operation might be unstable. becaus e of this, test these ics with as same external components as ones to be used on the pcb.) pcb layout make v dd and gnd lines sufficient. if their impedance is hi gh, noise pickup or unstable operation may result. connect a capacitor c1 with a capacitance value as much as 1.0 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.
rp102x 7 test circuits c1 rp102x series v dd v out ce gnd v c2 v out i out c1=ceramic 1.0 f c2=ceramic 1.0 f basic test circuit c1 rp102x series v dd v out ce gnd c2 a i ss c1=ceramic 1.0 f c2=ceramic 1.0 f test circuit for supply current rp102x series v dd v out ce gnd c2 pulse generator i out c2=ceramic 1.0 f p. g. test circuit for ripple rejection c1 rp102x series v dd v out ce gnd c2 i outa i outb c1=ceramic 1.0 f c2=ceramic 1.0 f test circuit for load transient response
rp102x 8 typical characteristic 1) output voltage vs. output current (c in = 1.0 f, c out = 1.0 f, t opt = 25 c) rp102x121x rp102x251x v in= 2.2v v in= 3.6v v in= 4.2v v in= 5.0v v in= 5.5v 0 600 400 200 100 700 500 300 0 1.4 1.0 0.8 0.6 1.2 0.4 0.2 output current i out (ma) output voltage v out (v) v in= 3.5v v in= 4.2v v in= 5.0v v in= 5.5v 0 600 400 200 100 700 500 300 0 3.0 2.0 1.5 1.0 2.5 0.5 output current i out (ma) output voltage v out (v) rp102x331x v in= 4.2v v in= 5.0v v in= 5.5v 0 600 400 200 100 700 500 300 0 4.0 3.5 3.0 2.0 1.5 1.0 2.5 0.5 output current i out (ma) output voltage v out (v) 2) output voltage vs. input voltage (c in = 1.0 f, c out = 1.0 f, t opt = 25 c) rp102x121x rp102x251x i out =1ma i out =30ma i out =50ma 04 3 2 15 0 1.4 1.0 0.8 0.6 1.2 0.4 0.2 input voltage v in (v) output voltage v out (v) i out =1ma i out =30ma i out =50ma 04 3 2 15 0 2.8 2.0 1.6 1.2 2.4 0.8 0.4 input voltage v in (v) output voltage v out (v)
rp102x 9 rp102x331x i out =1ma i out =30ma i out =50ma 04 3 2 15 0 3.5 2.5 2.0 1.5 3.0 1.0 0.5 input voltage v in (v) output voltage v out (v) 3) supply current vs. input voltage (c in = 1.0 f, c out = 1.0 f, t opt = 25 c) rp102x121x rp102x251x 04 3 2 15 0 60 40 30 20 50 10 input voltage v in (v) supply current i ss ( a) 04 3 2 15 0 60 40 30 20 50 10 input voltage v in (v) supply current i ss ( a) rp102x331x 04 3 2 15 0 60 40 30 20 50 10 input voltage v in (v) supply current i ss ( a)
rp102x 10 4) output voltage vs. temperature (c in = 1.0 f, c out = 1.0 f, i out = 1ma) rp102x121x rp102x251x 1.15 1.25 1.21 1.20 1.23 1.22 1.24 1.16 1.17 1.18 1.19 -40 75 50 025 -25 85 v in =2.2v temperature topt ( c) output voltage v out (v) 2.45 2.55 2.51 2.50 2.53 2.52 2.54 2.46 2.47 2.48 2.49 -40 75 50 025 -25 85 v in =3.5v temperature topt ( c) output voltage v out (v) rp102x331x 3.25 3.35 3.31 3.30 3.33 3.32 3.34 3.26 3.27 3.28 3.29 -40 75 50 025 -25 85 v in =4.3v temperature topt ( c) output voltage v out (v) 5) supply current vs. temperature (c in = 1.0 f, c out = 1.0 f, i out = 0ma) rp102x121x rp102x251x 40 60 50 55 45 -40 75 50 025 -25 85 v in =2.2v supply current i ss ( a) temperature topt ( c) 40 60 50 55 45 -40 75 50 025 -25 85 v in =3.5v supply current i ss ( a) temperature topt ( c)
rp102x 11 rp102x331x 40 60 50 55 45 -40 75 50 025 -25 85 v in =4.3v supply current i ss ( a) temperature topt ( c) 6) dropout voltage vs. output current (c in = 1.0 f, c out = 1.0 f) rp102x121x rp102x251x 85 c 25 c -40 c 0 300 250 200 150 100 50 0 200 250 150 100 50 300 output current i out (ma) dropout voltage v dif (mv) 85 c 25 c -40 c 0 200 150 100 50 0 200 250 150 100 50 300 output current i out (ma) dropout voltage v dif (mv) rp102x331x 85 c 25 c -40 c 0 200 150 100 50 0 200 250 150 100 50 300 output current i out (ma) dropout voltage v dif (mv)
rp102x 12 7) dropout voltage vs set output voltage (c in = 1.0 f, c out = 1.0 f, t opt = 25 c) 10ma 30ma 100ma 150ma 300ma 0 300 200 250 150 100 50 1.0 3.5 3.0 2.5 1.5 2.0 set output voltage v reg (v) dropout voltage v dif (mv) 8) ripple rejection vs. input bias voltage (c in = none, c out = 1.0 f, ripple = 0.2vp-p, t opt = 25 c) rp102x121x rp102x121x 1khz 10khz 100khz 1.2 1.7 2.7 2.2 3.2 4.2 3.7 4.7 0 80 10 40 30 20 60 50 70 90 i out =1ma input voltage v in (v) ripple rejection rr (db) 1khz 10khz 100khz 1.2 1.7 2.7 2.2 3.2 4.2 3.7 4.7 0 80 10 40 30 20 60 50 70 90 i out =30ma input voltage v in (v) ripple rejection rr (db) rp102x281x rp102x281x 1khz 10khz 100khz 2.8 3.3 3.8 4.8 4.3 5.3 0 80 10 40 30 20 60 50 70 90 i out =1ma input voltage v in (v) ripple rejection rr (db) 1khz 10khz 100khz 2.8 3.3 3.8 4.8 4.3 5.3 0 80 10 40 30 20 60 50 70 90 i out =30ma input voltage v in (v) ripple rejection rr (db)
rp102x 13 9) ripple rejection vs. frequency (c in = 1.0 f, c out = 1.0 f, ripple = 0.2vp-p) rp102x121x rp102x251x i out =1ma i out =30ma i out =150ma 0 20 40 60 120 100 80 v in =2.2v 0.1 10 1 100 1000 frequency f (khz) ripple reiection rr (db) i out =1ma i out =30ma i out =150ma 0 20 40 60 120 100 80 v in =3.5v 0.1 10 1 100 1000 frequency f (khz) ripple reiection rr (db) rp102x331x i out =1ma i out =30ma i out =150ma 0 20 40 60 120 100 80 v in =4.3v 0.1 10 1 100 1000 frequency f (khz) ripple reiection rr (db) rp102x121x rp102x251x t out =-40 c t out =25 c t out =85 c 0 20 40 60 120 100 80 v in =2.2v i out =30ma 0.1 10 1 100 1000 frequency f (khz) ripple reiection rr (db) t out =-40 c t out =25 c t out =85 c 0 20 40 60 120 100 80 v in =3.5v i out =30ma 0.1 10 1 100 1000 frequency f (khz) ripple reiection rr (db)
rp102x 14 rp102x331x t out =-40 c t out =25 c t out =85 c 0 20 40 60 120 100 80 v in =4.3v i out =30ma 0.1 10 1 100 1000 frequency f (khz) ripple reiection rr (db) 10) input transient response (c in = none, c out = 1.0 f, i out = 30ma, tr = tf = 5 s, t opt = 25 c) rp102x121x rp102x251x 3 0 100 40 60 20 80 2 1.190 1.200 1.195 4 output voltage v out (v) input voltage v in (v) time t ( s) input voltage output voltage 3 0 100 40 60 20 80 2.490 2.500 2.495 4 5 output voltage v out (v) input voltage v in (v) time t ( s) input voltage output voltage rp102x331x 5 0 100 40 60 20 80 4 3.290 3.300 3.295 6 output voltage v out (v) input voltage v in (v) time t ( s) input voltage output voltage
rp102x 15 11) load transient response (c out = 1.0 f, t opt = 25 c) rp102x121x rp102x251x 100 0 50 0 100 40 60 20 80 1.17 1.19 1.20 1.18 150 v in =2.2v tr=tf=0.5 s output current 50ma 100ma output voltage v out (v) time t ( s) output voltage output current i out ( ma ) output current 100 0 50 0 100 40 60 20 80 2.47 2.49 2.50 2.48 150 50ma 100ma v in =3.5v tr=tf=0.5 s output voltage v out (v) time t ( s) output voltage output current i out ( ma ) rp102x331x 100 0 50 0 100 40 60 20 80 3.27 3.29 3.30 3.28 150 50ma 100ma v in =3.5v tr=tf=0.5 s output voltage v out (v) time t ( s) output current output voltage output current i out ( ma ) rp102x121x rp102x251x 150 0 0 100 40 60 20 80 1.10 1.20 1.15 300 1ma 150ma v in =2.2v tr=tf=0.5 s output voltage v out (v) time t ( s) output current output voltage output current i out ( ma ) 150 0 0 100 40 60 20 80 2.40 2.50 2.45 300 1ma 150ma v in =3.5v tr=tf=0.5 s output voltage v out (v) time t ( s) output current output voltage output current i out ( ma )
rp102x 16 rp102x331x 150 0 0 100 40 60 20 80 3.15 3.25 3.30 3.20 300 1ma 150ma v in =4.3v tr=tf=0.5 s output voltage v out (v) time t ( s) output current output voltage output current i out ( ma ) 12) turn on speed with ce pin (c i n = 1.0 f, c out = 1.0 f, t opt = 25 c) rp102x121x rp102x121x 0 0.5 1.0 1.5 0 100 40 60 20 80 1 0 2 3 i out =0ma ce input voltage v ce (v) ce input voltage output voltage output voltage v out (v) time t ( s) 0 0.5 1.0 1.5 0 100 40 60 20 80 1 0 2 3 i out =30ma ce input voltage v ce (v) ce input voltage output voltage output voltage v out (v) time t ( s) rp102x121x 0 0.5 1.0 1.5 0 100 40 60 20 80 1 0 2 3 i out =150ma ce input voltage v ce (v) ce input voltage output voltage output voltage v out (v) time t ( s)
rp102x 17 rp102x251x rp102x251x 0 1 2 3 0 100 40 60 20 80 2 0 4 6 i out =0ma ce input voltage v ce (v) ce input voltage output voltage output voltage v out (v) time t ( s) 0 1 2 3 0 100 40 60 20 80 2 0 4 6 i out =30ma ce input voltage v ce (v) ce input voltage output voltage output voltage v out (v) time t ( s) rp102x251x 0 1 2 3 0 100 40 60 20 80 2 0 4 6 i out =150ma ce input voltage v ce (v) ce input voltage output voltage output voltage v out (v) time t ( s) rp102x331x rp102x331x 0 1.5 3.0 4.5 0 100 40 60 20 80 2 0 4 6 i out =0ma ce input voltage v ce (v) ce input voltage output voltage output voltage v out (v) time t ( s) 0 1.5 3.0 4.5 0 100 40 60 20 80 2 0 4 6 i out =30ma ce input voltage v ce (v) ce input voltage output voltage output voltage v out (v) time t ( s)
rp102x 18 rp102x331x 0 1.5 3.0 4.5 0 100 40 60 20 80 2 0 4 6 i out =150ma ce input voltage v ce (v) ce input voltage output voltage output voltage v out (v) time t ( s) 13) turn off speed with ce pin (d version) (c in = 1.0 f, c out = 1.0 f, t opt = 25 c) rp102x121d rp102x121d 0 0.5 1.0 1.5 1 0 2 3 i out =0ma 0 500 200 300 100 400 ce input voltage v ce (v) ce input voltage output voltage output voltage v out (v) time t ( s) 0 0.5 1.0 1.5 0 200 100 150 50 1 0 2 3 i out =30ma ce input voltage output voltage output voltage v out (v) time t ( s) ce input voltage v ce (v) rp102x121d 0 0.5 1.0 1.5 0 100 40 60 20 80 1 0 2 3 i out =300ma ce input voltage output voltage output voltage v out (v) time t ( s) ce input voltage v ce (v)
rp102x 19 rp102x251x rp102x251x 0 0.5 1.5 2.5 0 500 200 300 100 400 ce input voltage v ce (v) 0 3.5 2.5 1.5 output voltage v out (v) i out =0ma time t ( s) ce input voltage output voltage 0 0.5 1.5 2.5 0 500 200 300 100 400 ce input voltage v ce (v) 0 3.5 2.5 1.5 output voltage v out (v) i out =30ma time t ( s) ce input voltage output voltage rp102x251x 0 0.5 1.5 2.5 0 500 200 300 100 400 ce input voltage v ce (v) 0 3.5 2.5 1.5 output voltage v out (v) i out =300ma time t ( s) ce input voltage output voltage rp102x331x rp102x331x 0 0.5 1.5 2.5 3.5 0 500 200 300 100 400 ce input voltage v ce (v) 0 3.5 4.5 2.5 1.5 output voltage v out (v) i out =0ma time t ( s) ce input voltage output voltage 0 0.5 1.5 2.5 3.5 0 500 200 300 100 400 ce input voltage v ce (v) 0 3.5 4.5 2.5 1.5 output voltage v out (v) i out =30ma time t ( s) ce input voltage output voltage
rp102x 20 rp102x331x 0 0.5 1.5 2.5 3.5 0 500 200 300 100 400 ce input voltage v ce (v) 0 3.5 4.5 2.5 1.5 output voltage v out (v) i out =300ma time t ( s) ce input voltage output voltage
rp102x 21 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 2mhz temperature: ? 40 c to 85 c rp102x121x rp102x251x 0 100 250 50 200 150 300 topt=85 c topt=-40 c 0.01 10 100 0.10 1 v in =2.2v to 5.5v c in =c out =1.0 f output current i out (ma) esr ( ) 0 100 250 50 200 150 300 topt=85 c topt=-40 c 0.01 10 100 0.10 1 v in =3.5v to 5.5v c in =c out =1.0 f output current i out (ma) esr ( ) rp102x331x 0 100 250 50 200 150 300 topt=85 c topt=-40 c 0.01 10 100 0.10 1 v in =4.3v to 5.5v c in =c out =1.0 f output current i out (ma) esr ( )
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