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low dropout voltage regulator 1 rn5rt series outline the rn5rt series are cmos-based voltage regulator ics with high output voltage accuracy and low supply cur- rent developed . each of these voltage regulator ics consists of a voltage reference unit, an error amplifier, output voltage setting resistors and a current limit circuit. the output voltage of these ics is fixed with high accuracy. the built-in driver transistor of low on resistance permits developing of low dropout cmos type regulator as rn5rt series. even if v out is shorted to gnd, the current limit circuit protects the ics from destruction. furthermore, these ics have a chip enable function, so that the supply current on standby can be minimized. since the package for these ics is the sot-23-5 (mini-mold) package, high density mounting of the ics on boards is possible. ultra-low supply current ........................................... typ. 4? (except i cel ) standby mode .............................................................. typ. 0.1? low dropout voltage .................................................. typ. 0.3v (i out =60ma, rn5rt30a) low temperature-drift coefficient of output voltage........typ. ?00ppm/?c excellent line regulation ........................................... typ. 0.15%/v ?output voltage ............................................................. stepwise setting with a step of 0.1v in the range of 2.0v to 6.0v is possible (refer to selection guide). high accuracy output voltage .................................. ?.0% built-in current limit circuit ..................................... typ. 30ma small package .............................................................. sot-23-5 (mini-mold) features applications power source for battery-powered equipment. power source for cellular phones, cameras, vcrs, camcorders, hand-held audio instruments and hand-held com- munication equipment. power source for domestic appliances. no. ea-038-091028
selection guide rn5rt 2 block diagram 2 5 3 1 vr e f v out gnd v dd + ce current limit rn5rt xxxx x part number abc d } the output voltage, the packing type, and the taping type for the ics can be selected at the user's request. these selections can be made by designating the part number as shown below: code contents a setting output voltage (v out ) : stepwise setting with a step of 0.1v in the range of 2.0v to 6.0v is possible. ba designation of packing type : c a : taping c : antistatic bag (for samples only) d designation of taping type : ex. tr, tl (refer to taping specifications ; tr type is the standard direction.)
rn5rt 3 pin configuration pin description ?sot-23-5 12 3 54 (mark side) pin no. symbol description 1 gnd ground pin 2v dd input pin 3v out output pin 4 nc no connection 5 ce chip enable pin absolute maximum ratings absolute maximum ratings absolute maximum ratings are threshold limit values that must not be exceeded even for an instant under any conditions. moreover, such values for any two items must not be reached simultaneously. operation above these absolute maximum ratings may cause degradation or permanent damage to the device. these are stress ratings only and do not necessarily imply functional operation below these limits. symbol item ratings unit v in input voltage 9 v v ce input voltage (ce pin) 0.3 to v in +0.3 v v out output voltage 0.3 to v in +0.3 v i out output current 150 ma p d power dissipation 150 mw topt operating temperature 40 to +85 ? c tstg storage temperature 55 to +125 ? c tsolder lead temperature (soldering) 260 ? c, 10s
rn5rt 4 electrical characteristics topt=25 ? c symbol item conditions min. typ. max. unit v out output voltage v in =4.0v, i out =10ma 2.940 3.000 3.060 v i out output current v in =4.0v 40 60 ma ? v out load regulation v in =4.0v 40 80 mv ? i out 1ma i out 60ma v dif dropout voltage i out =60ma 0.3 0.5 v i ss supply current v in =4.0v (except i cel ) 4.0 10 a istandby supply current (standby) v in =v ce =4.0v 0.1 1.0 a ? v out line regulation i out =30ma 0.00 0.15 0.30 %/v ? v in v out +0.5v v in 8.0v v in input voltage 8v ? v out output voltage i out =10ma 100 ppm/ ? c ? topt temperature coefficient 40 ? c topt 85 ? c i lim short current limit v out =0v 30 ma v ceh ce input voltage h 1.5 v v cel ce input voltage l 0.25 v i ceh ce input current h v ce =v in 0.0 0.1 a i cel ce input current l v ce =0v 4.0 2.0 0.1 a rn5rt30a
rn5rt 5 rn5rt40a topt=25 ? c symbol item conditions min. typ. max. unit v out output voltage v in =5.0v, i out =10ma 3.920 4.000 4.080 v i out output current v in =5.0v 50 80 ma ? v out load regulation v in =5.0v 40 80 mv ? i out 1ma i out 80ma v dif dropout voltage i out =80ma 0.3 0.5 v i ss supply current v in =5.0v (expect i cel )410a istandby supply current (standby) v in =v ce =5.0v 0.1 1.0 a ? v out line regulation i out =30ma 0.15 0.30 %/v ? v in v out +0.5v v in 8.0v v in input voltage 8v ? v out output voltage i out =10ma 100 ppm/ ? c ? topt temperature coefficient 40 ? c topt 85 ? c i lim short current limit v out =0v 30 ma v ceh ce input voltage h 1.5 v v cel ce input voltage l 0.25 v i ceh ce input current h v ce =v in 0.0 0.1 a i cel ce input current l v ce =0v 4.0 2.0 0.1 a rn5rt50a topt=25 ? c symbol item conditions min. typ. max. unit v out output voltage v in =6.0v, i out =10ma 4.900 5.000 5.100 v i out output current v in =6.0v 65 100 ma ? v out load regulation v in =6.0v 40 80 mv ? i out 1ma i out 100ma v dif dropout voltage i out =100ma 0.3 0.5 v i ss supply current v in =6.0v (except i cel )410a istandby supply current (standby) v in =v ce =6.0v 0.1 1.0 a ? v out line regulation i out =30ma 0.15 0.30 %/v ? v in v out +0.5v v in 8.0v v in input voltage 8v ? v out output voltage i out =10ma 100 ppm/ ? c ? topt temperature coefficient 40 ? c topt 85 ? c i lim short current limit v out =0v 30 ma v ceh ce input voltage h 1.5 v v cel ce input voltage l 0.25 v i ceh ce input current h v ce =v in 0.0 0.1 a i cel ce input current l v ce =0v 4.0 2.0 0.1 a
rn5rt 6 electrical characteristics by output voltage output voltage output current load regulation dropout voltage supply current part number v out (v) i out (ma) ? v out / ? i out (ma) v dif (v) i ss (a) conditions min. typ. max. conditions min. typ. conditions typ. max. conditions typ. max. conditions typ. max. rn5rt20a 1.960 2.000 2.040 rn5rt21a 2.058 2.100 2.142 rn5rt22a 2.156 2.200 2.244 rn5rt23a 2.254 2.300 2.346 rn5rt24a 2.352 2.400 2.448 rn5rt25a 2.450 2.500 2.550 rn5rt26a 2.548 2.600 2.652 rn5rt27a 2.646 2.700 2.754 rn5rt28a 2.744 2.800 2.856 rn5rt29a 2.842 2.900 2.958 rn5rt30a 2.940 3.000 3.060 rn5rt31a 3.038 3.100 3.162 rn5rt32a 3.136 3.200 3.264 rn5rt33a 3.234 3.300 3.366 rn5rt34a 3.332 3.400 3.468 rn5rt35a 3.430 3.500 3.570 rn5rt36a 3.528 3.600 3.672 rn5rt37a 3.626 3.700 3.774 rn5rt38a 3.724 3.800 3.876 rn5rt39a 3.822 3.900 3.978 4.0 10 rn5rt40a 3.920 4.000 4.080 rn5rt41a 4.018 4.100 4.182 rn5rt42a 4.116 4.200 4.284 rn5rt43a 4.214 4.300 4.386 rn5rt44a 4.312 4.400 4.488 rn5rt45a 4.410 4.500 4.590 rn5rt46a 4.508 4.600 4.692 rn5rt47a 4.606 4.700 4.794 rn5rt48a 4.704 4.800 4.896 rn5rt49a 4.802 4.900 4.998 rn5rt50a 4.900 5.000 5.100 rn5rt51a 4.998 5.100 5.202 rn5rt52a 5.096 5.200 5.304 rn5rt53a 5.194 5.300 5.406 rn5rt54a 5.292 5.400 5.508 rn5rt55a 5.390 5.500 5.610 rn5rt56a 5.488 5.600 5.712 rn5rt57a 5.586 5.700 5.814 rn5rt58a 5.684 5.800 5.916 rn5rt59a 5.782 5.900 6.018 rn5rt60a 5.880 6.000 6.120 25 40 40 60 50 80 65 100 v in v out =1.0v 1ma i out 40ma v in v out =1.0v 1ma i out 60ma v in v out =1.0v 1ma i out 80ma v in v out =1.0v 1ma i out 100ma 40 80 0.3 0.5 i out =40ma i out =60ma i out =80ma i out =100ma v in v out =1.0v ( except ) i cel v in v out =1.0v i out =10ma v tn v out =1.0v
rn5rt 7 topt=25 ? c supply current line regulation input output voltage short ce input voltage ce input current (standby) voltage temperature coefficient current limit h l h l istandby (a) ? v out / ? v in (%/v) v in (v) ? v out / ? t (ppm/ ? c) i lim (ma) v ceh (v) v cel (v) i ceh (a) i cel (a) conditions typ. max. conditions typ. max. max. conditions typ. conditions typ. min. max. conditions typ. max. conditions min. typ. max. i out = i out = 30ma 10ma 0.1 1.0 v out + 0.15 0.3 8 40 ? c 100 v out 30 1.5 0.25 v ce = 0 0.1 v ce = 4.0 2.0 0.1 0.5v topt =0v v in 0v v in 85 ? c 8v v in v out =1.0v
rn5rt 8 operation 2 5 3 1 vr e f v out gnd v dd + ce current limit r1 r2 in these ics, the output voltage v out is detected by feed-back registers r1, r2, and the detected output voltage is compared with a reference voltage by the error amplifier, so that a constant voltage is output. a current limit circuit working for short protection and a chip enable circuit for standby function are included. test circuits i out v dd v out 1 ce 3 c2 c1 5 2 gnd v in c1, c2=1f v dd v out 1 ce 3 c1 5 2 gnd c1=1f i ss a fig.1 standard test circuit fig.2 supply current test circuit i out v dd v out 1 ce 3 c1 5 2 gnd v in c1=1 f p.g. fig.3 line transient response test circuit
rn5rt 9 typical characteristics 1) output voltage vs. output current v in =4.0v v in =8.0v v in =5.0v v in =3.3v rn5rt30a topt=25 ? c 0 100 200 300 400 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 output voltage v out (v) output current i out (ma) rn5rt40a topt=25 ? c 0 100 200 300 400 500 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 output voltage v out (v) output current i out (ma) v in =5.0v v in =4.3v v in =6.0v v in =8.0v rn5rt50a topt=25 ? c 0 100 200 300 400 500 600 0.0 1.0 2.0 3.0 4.0 5.0 6.0 output voltage v out (v) output current i out (ma) v in =6.0v v in =5.3v v in =7.0v v in =8.0v 2) output voltage vs. input voltage rn5rt30a topt=25 ? c 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 output voltage v out (v) input voltage v in (v) i out =1ma i out =10ma i out =60ma rn5rt30a topt=25 ? c 3.0 4.0 5.0 6.0 7.0 8.0 2.95 2.96 2.97 2.98 2.99 3.00 3.01 3.02 3.03 3.04 3.05 output voltage v out (v) input voltage v in (v) i out =10a i out =1ma i out =10ma
rn5rt 10 rn5rt40a topt=25 ? c 2.0 3.0 4.0 5.0 6.0 7.0 8.0 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 output voltage v out (v) input voltage v in (v) i out =1ma i out =10ma i out =80ma rn5rt40a topt=25 ? c 4.0 5.0 6.0 7.0 8.0 3.95 3.96 3.97 3.98 3.99 4.00 4.01 4.02 4.03 4.04 4.05 output voltage v out (v) input voltage v in (v) i out =10a i out =1ma i out =10ma rn5rt50a topt=25 ? c 3.0 4.0 5.0 6.0 7.0 8.0 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 output voltage v out (v) input voltage v in (v) i out =1ma i out =10ma i out =100ma rn5rt50a topt=25 ? c 5.0 6.0 7.0 8.0 4.95 4.96 4.97 4.98 4.99 5.00 5.01 5.02 5.03 5.04 5.05 output voltage v out (v) input voltage v in (v) i out =10a i out =1ma i out =10ma 3) dropout voltage vs. output current rn5rt30a 0 1020304050607080 0.0 0.1 0.2 0.3 0.4 0.5 dropout voltage v dif (v) output current i out (ma) topt=85 ? c 25 ? c 40 ? c rn5rt40a 0 20406080100 0.0 0.1 0.2 0.3 0.4 0.5 dropout voltage v dif (v) output current i out (ma) topt=85 ? c 25 ? c 40 ? c
rn5rt 11 rn5rt50a 0 20406080100120 0.0 0.1 0.2 0.3 0.4 0.5 dropout voltage v dif (v) output current i out (ma) topt=85 ? c 25 ? c 40 ? c 4) output voltage vs. temperature rn5rt30a v in =4v i out =10ma 50 25 0 25 50 75 100 2.9 3.0 3.1 output voltage v out (v) temperature topt( ? c) rn5rt40a v in =5v i out =10ma 50 25 0 25 50 75 100 3.9 4.0 4.1 output voltage v out (v) temperature topt( ? c) rn5rt50a v in =6v i out =10ma 50 25 0 25 50 75 100 4.9 5.0 5.1 output voltage v out (v) temperature topt( ? c)
rn5rt 12 5) supply current vs. input voltage rn5rt30a topt=25 ? c 3.0 4.0 5.0 6.0 7.0 8.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 supply current i ss (a) input voltage v in (v) rn5rt40a topt=25 ? c 4.0 5.0 6.0 7.0 8.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 supply current i ss (a) input voltage v in (v) rn5rt50a topt=25 ? c 5.0 6.0 7.0 8.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 supply current i ss (a) input voltage v in (v) 6) supply current vs. temperature rn5rt30a v in =8v 50 25 0 25 50 75 100 3.0 3.2 3.4 3.6 3.8 4.0 supply current i ss (a) temperature topt( ? c) rn5rt40a v in =8v 50 25 0 25 50 75 100 3.0 3.2 3.4 3.6 3.8 4.0 supply current i ss (a) temperature topt( ? c)
rn5rt 13 rn5rt50a v in =8v 50 25 0 25 50 75 100 3.0 3.2 3.4 3.6 3.8 4.0 supply current i ss (a) temperature topt( ? c) 7) dropout voltage vs. set output voltage rn5rt series topt=25 ? c 0123456 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 dropout voltage v dif (v) set output voltage vreg(v) i out =50ma i out =10ma i out =1ma 8) line transient response rn5rt30a topt=25 ? c c out =1f i out =1ma 0.0 0.4 0.8 1.2 1.6 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 input voltage v in / output voltage v out (v) time t (ms) input voltage output voltage rn5rt30a topt=25 ? c c out =1f i out =30ma 0 0.4 0.8 1.2 1.6 2 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 input voltage v in / output voltage v out (v) time t (ms) input voltage output voltage
rn5rt 14 typical application i out v dd v out 1 ce 3 c2 c1 5 2 gnd v in in the rn5rt series, a constant voltage can be obtained without using capacitor c1 and c2. however, when the wire connected to v in is long, use a capacitor c1. transient noise of output voltage occurred due to load deviation can be reduced by using a capacitor c2. insert capacitors c1 and c2 with the capacitance of 0.1f to 2.0f between input/output pins and gnd pin with minimum wiring.
package information pe-sot-23-5-090223 ? sot-23-5 (sc-74a) unit: mm package dimensions 2.9 0.2 0.4 0.1 1.9 0.2 (0.95) (0.95) 54 123 +0.2 ? 0.1 1.6 +0.1 ? 0.05 0.15 2.8 0.3 0 to 0.1 0.8 0.1 1.1 0.1 0.2 min. taping specification tr user direction of feed 0.3 0.1 2.0max. 4.0 0.1 2.0 0.05 4.0 0.1 3.3 3.2 8.0 0.3 1.75 0.1 3.5 0.05 1.5 +0.1 0 ? ? 1.1 0.1 taping reel dimensions reuse reel (eiaj-rrm-08bc) (1reel=3,000pcs) 2 0.5 11.4 1.0 9.0 0.3 13 0.2 ? 60 ? +1 0 180 ? 0 ? 1.5 21 0.8
package information pe-sot-23-5-090223 power dissipation (sot-23-5) this specification is at mounted on board. power dissipation (p d ) depends on conditions of mounting on board. this specification is based on the measurement at the condition below: (power dissipation (sot-23-5) is substitution of sot-23-6.) measurement conditions standard land pattern environment mounting on board (wind velocity=0m/s) board material glass cloth epoxy plastic (double sided) board dimensions 40mm 40mm 1.6mm copper ratio top side : approx. 50% , back side : approx. 50% through-holes 0.5mm 44pcs measurement results (topt=25 c, tjmax=125 c) standard land pattern free air power dissipation 420mw 250mw thermal resistance ja = (125 ? 25 c)/0.42w = 238 c/w 400 c/w 40 40 power dissipation recommended land pattern 0.7 max. 0.95 0.95 1.9 2.4 1.0 the above graph shows the power dissipation of the package based on tjmax=125 c and tjmax=150 c. operating the ic in the shaded area in the graph might have an influence it's lifetime. operating time must be within the time limit described in the table below, in case of operating in the shaded area. product name operating time estimated years (operating four hours/day) rp100n 9,000 hrs 6 years rp101n 9,000 hrs 6 years rp102n 2,300 hrs 1.5 years rp103n 9,000 hrs 6 years rp104n 9,000 hrs 6 years rp130n 9,000 hrs 6 years rp200n 9,000 hrs 6 years (unit: mm) measurement board pattern ic mount area (unit: mm) power dissipation p d (mw) a mbient temperature ( c) 600 500 400 300 200 0 150 25 50 75 100 125 0 100 85 free air on board 525 420 250
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