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voltage regulator r 5rl series application manual no.ea-022-0006
voltage regulator r 5rl series 1 outline the r 5rl series are voltage regulator ics with high accuracy output voltage and ultra-low quiescent cur- rent by cmos process. each of these ics consists of a voltage reference unit, an error amplifier, a driver tran- sistor, and resistors for setting output voltage. the output voltage is fixed with high accuracy. three types of packages, to-92, sot-89 (mini-power mold), sot-23-5 (mini-mold), are available. ? ultra-low quiescent current ........................... typ. 1.1a (r 5rl30a, v in =5.0v) ? small dropout voltage ..................................... typ. 30mv (r 5rl50a, i out =1ma) ? low temperature-drift coefficient of output voltage ............... typ. 100 ppm/?c ? excellent line regulation ................................. typ. 0.1%/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 ......................... 2.5% ? three types of packages ................................... to-92, sot-89 (mini-power mold), sot-23-5 (mini-mold) features applications ? power source for battery-powered equipment. ? power source for cameras, video instruments such as camcorders, vcrs, and hand- held communication equipment. ? precision voltage references. block diagram 2 1 3 vr e f v out gnd v in + 1
r 5rl 2 selection guide the package type, the output voltage, the packing type, and the taping type of r 5rl series can be designated at the user's request by specifying the part number as follows: for example, the product with package type sot-89, output voltage 5.0v, version a,and taping type t1 are designated by part number rh5rl50aa-t1. code contents designation of package type: a e: to-92 h: sot-89 (mini-power mold) n: sot-23-5 (mini-mold) b setting output voltage (v out ): stepwise setting with a step of 0.1v in the range of 2.0v to 6.0v is possible. ca designation of packing type: d a: taping c: antistatic bag for to-92 and samples designation of taping type: ex. to-92 : rf, rr, tz e sot-89 : t1, t2 sot-23-5 : tr, tl (refer to taping specifications) tz, t1, and tr are prescribed as standard directions. r 5rl C ? part number ----- abcde } }
r 5rl 3 ? to-92 pin configuration ? sot-89 ? sot-23-5 pin description ? to-92 ? sot-89 ? sot-23-5 pin no. symbol 1 gnd 2v in 3v out 4nc 5nc pin no. symbol 1 gnd 2v in 3v out pin no. symbol 1 gnd 2v in 3v out 12 3 (mark side) 12 3 (mark side) 12 3 (mark side) 5 4
r 5rl 4 absolute maximum ratings symbol item v in input voltage v out output voltage i out output current p d 1 power dissipation 1 ( note 1) p d 2 power dissipation 2 ( note 2) topt operating temperature tstg storage temperature tsolder lead temperature (soldering) rating unit +12 v C0.3 to v in +0.3 v 150 ma 300 mw 150 mw C 40 to +85 ?c C 55 to +125 ?c 260?c,10s topt=25?c 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. absolute maximum ratings (note 1) applied to sot-89 and to-92 (note 2) applied to sot-23-5
r 5rl 5 electrical characteristics ? r 5rl20a symbol item v out output voltage i out output current ? v out load regulation ? i out v dif dropout voltage i ss quiescent current ? v out ? v in line regulation v in input voltage ? v out output voltage ? topt temperature coefficient conditions min. typ. max. unit v in =4.0v 1.950 2.000 2.050 v 10 a i out 10ma v in =4.0v 25 35 ma v in =4.0v 1ma i out 35ma 30 45 mv i out =1ma 60 90 mv v in =4.0v 1.0 3.0 a i out =1ma v out +0.5v v in 10v 0.05 0.2 %/v 10 v i out =10ma 100 ppm/?c C40?c topt 85?c topt=25?c ? r 5rl30a topt=25?c symbol item v out output voltage i out output current ? v out load regulation ? i out v dif dropout voltage i ss quiescent current ? v out ? v in line regulation v in input voltage ? v out output voltage ? topt temperature coefficient conditions min. typ. max. unit v in =5.0v 2.925 3.000 3.075 v 10a i out 10ma v in =5.0v 35 50 ma v in =5.0v 1ma i out 50ma 40 60 mv i out =1ma 40 60 mv v in =5.0v 1.1 3.3 a i out =1ma v out + 0.5v v in 10v 0.05 0.2 %/v 10 v i out =10ma 100 ppm/?c C40?c topt 85?c
r 5rl 6 ? r 5rl50a topt=25?c ? r 5rl40a topt=25?c symbol item v out output voltage i out output current ? v out load regulation ? i out v dif dropout voltage i ss quiescent current ? v out ? v in line regulation v in input voltage ? v out output voltage ? topt temperature coefficient conditions min. typ. max. unit v in =6.0v 3.900 4.000 4.100 v 10a i out 10ma v in =6.0v 45 65 ma v in =6.0v 1ma i out 65ma 50 75 mv i out =1ma 25 38 mv v in =6.0v 1.2 3.6 a i out =1ma v out + 0.5v v in 10v 0.05 0.2 %/v 10 v i out =10ma 100 ppm/?c C40?c topt 85?c symbol item v out output voltage i out output current ? v out load regulation ? i out v dif dropout voltage i ss quiescent current ? v out ? v in line regulation v in input voltage ? v out output voltage ? topt temperature coefficient conditions min. typ. max. unit v in =7.0v 4.875 5.000 5.125 v 10a i out 10ma v in =7.0v 55 80 ma v in =7.0v 1ma i out 80ma 60 90 mv i out =1ma 25 38 mv v in =7.0v 1.3 3.9 a i out =1ma v out + 0.5v v in 10 v 0.05 0.2 %/v 10 v i out =10ma 100 ppm/?c C40?c topt 85?c
r 5rl 7 ? r 5rl60a topt=25?c symbol item v out output voltage i out output current ? v out load regulation ? i out v dif dropout voltage i ss quiescent current ? v out ? v in line regulation v in input voltage ? v out output voltage ? topt temperature coefficient conditions min. typ. max. unit v in =8.0v 5.850 6.000 6.150 v 10a i out 10ma v in =8.0v 55 80 ma v in =8.0v 1ma i out 80ma 60 90 mv i out =1ma 25 38 mv v in =8.0v 1.3 3.9 a i out =1ma v out + 0.5v v in 10v 0.05 0.2 %/v 10 v i out =10ma 100 ppm/?c C40?c t op t 85?c
r 5rl 8 electrical characteistics by output voltage v in C v out =2.0v 25 35 30 45 1ma i out 35ma v in C v out =2.0v 35 50 40 60 1ma i out 50ma v in C v out =2.0v 45 65 50 70 1ma i out 65ma v in C v out =2.0v 55 80 60 90 1ma i out 80ma r 5rl20a 1.950 2.000 2.050 r 5rl21a 2.048 2.100 2.152 r 5rl22a 2.145 2.200 2.255 r 5rl23a 2.243 2.300 2.357 r 5rl24a 2.340 2.400 2.460 r 5rl25a 2.438 2.500 2.562 r 5rl26a 2.535 2.600 2.665 r 5rl27a 2.633 2.700 2.767 r 5rl28a 2.730 2.800 2.870 r 5rl29a 2.828 2.900 2.972 r 5rl30a 2.925 3.000 3.075 r 5rl31a 3.023 3.100 3.177 r 5rl32a 3.120 3.200 3.280 r 5rl33a 3.218 3.300 3.382 r 5rl34a 3.315 3.400 3.485 r 5rl35a 3.413 3.500 3.587 r 5rl36a 3.510 3.600 3.690 r 5rl37a 3.608 3.700 3.792 r 5rl38a 3.705 3.800 3.895 r 5rl39a 3.803 3.900 3.997 r 5rl40a 3.900 4.000 4.100 r 5rl41a 3.998 4.100 4.202 r 5rl42a 4.095 4.200 4.305 r 5rl43a 4.193 4.300 4.407 r 5rl44a 4.290 4.400 4.510 r 5rl45a 4.388 4.500 4.612 r 5rl46a 4.485 4.600 4.715 r 5rl47a 4.583 4.700 4.817 r 5rl48a 4.680 4.800 4.920 r 5rl49a 4.778 4.900 5.022 r 5rl50a 4.875 5.000 5.125 r 5rl51a 4.973 5.100 5.227 r 5rl52a 5.070 5.200 5.330 r 5rl53a 5.168 5.300 5.432 r 5rl54a 5.265 5.400 5.535 r 5rl55a 5.363 5.500 5.637 r 5rl56a 5.460 5.600 5.740 r 5rl57a 5.558 5.700 5.842 r 5rl58a 5.655 5.800 5.945 r 5rl59a 5.753 5.900 6.047 r 5rl60a 5.850 6.000 6.150 output voltage outputcurrent load regulation part number v out (v) i out (ma) ? v out (mv) conditions min. typ. max. conditions min. typ. conditions typ. max. v in C v out =2.0v 10a i out 10ma v in C v out =2.0v 60 90 50 75 40 60 35 53 30 45 i out =1ma 25 38 dropout voltage v dif (mv) conditions typ. max.
r 5rl 9 1.0 3.0 1.1 3.3 i out =1ma i out v in =10ma v out 0.05 0.2 10 100 =2.0v v out + C40?c 0.5v topt v in 85?c 1.2 3.6 10v 1.3 3.9 quiescent current line regulation input voltage o utput voltage tempco. iss(a) ? v out / ? v in (%/v) v in (v) ? v out / ? t(ppm/?c) conditions typ. max. conditions typ. max. max. conditions typ. topt=25?c
r 5rl 10 operation output voltage v out divided at the node between registers r1 and r2 is compared with reference voltage by error amplifier, so that a constant voltage is output. test circuits fig. 2 test circuit fig. 3 quiescent current test circuit fig. 4 line transient response test circuit fig. 1 brock diagram gnd gnd v in + error amplifire v out r2 r1 vr e f c i 1? co 1? v in gnd r 5rl series v out i out v out v in + + ro co 0.1? p.g gnd r 5rl series v out v out v in + i ss c i 1? v in gnd r 5rl series v out v in +
r 5rl 11 r 5rl30a typical characteristics 1) output voltage vs. output current r 5rl30a r 5rl40a r 5rl50a 2) output voltage vs. input voltage r 5rl30a output voltage v out (v) output current i out (ma) 2.7 2.8 2.9 3.1 3.0 v in =5.0v 0 20 40 60 80 100 120 140 topt= - 40?c 85?c 25?c output current i out (ma) output voltage v out (v) 050 4.7 4.8 4.9 5.0 5.1 v in =7.0v 100 150 200 85?c 25?c topt= - 40?c 2.5 3.0 3.5 2.2 2.4 2.6 2.8 3.0 3.2 i out =1ma output voltage v out (v) topt=25?c input voltage v in (v) 5ma 10ma output current i out (ma) output voltage v out (v) 0 3.7 3.8 3.9 4.1 4.0 v in =6.0v 20 40 60 80 100 120 140 160 180 topt= - 40?c 85?c 25?c 34 5 6 7 8 910 2.95 2.96 2.97 2.98 2.99 3.00 3.01 3.02 3.03 3.04 3.05 input voltage v in (v) output voltage v out (v) i out =1ma topt=25?c
r 5rl 12 r 5rl40a r 5rl50a r 5rl50a r 5rl30a 3) dropout voltage vs. output curret r 5rl40a r 5rl40a 3.5 4.0 4.5 3.2 3.4 3.6 3.8 4.0 4.2 i out =1ma output voltage v out (v) topt=25?c 5ma 10ma input voltage v in (v) 4.5 5.0 5.5 4.2 4.4 4.6 4.8 5.0 5.2 i out =1ma output voltage v out (v) topt=25?c input voltage v in (v) 5ma 10ma output current i out (ma) dropout voltage v dif (v) 0 1020304050 0.0 0.4 0.6 0.2 0.8 1.0 1.2 1.4 1.6 1.8 2.0 25?c 85?c topt= - 40?c input voltage v in (v) 45678 910 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) i out =1ma topt=25?c 5 6 78 9 10 4.95 4.96 4.97 4.98 4.99 5.00 5.01 5.02 5.03 5.04 5.05 input voltage v in (v) output voltage v out (v) i out =1ma topt=25?c output current i out (ma) dropout voltage v dif (v) 01020304050 0.0 0.4 0.6 0.2 0.8 1.0 1.2 1.4 1.6 1.8 2.0 85?c topt= - 40?c 25?c
13 r 5rl r 5rl50a r 5rl30a r 5rl40a r 5rl50a 4) output voltage vs.temperature output current i out (ma) dropout voltage v dif (v) 0 10 20 30 40 50 0.0 0.4 0.6 0.2 0.8 1.0 1.2 1.4 1.6 1.8 2.0 5pqu? ? ? i out =10ma v in =5.0v ?0 ?0 temperature topt(?c) 0 20 40 60 80 100 2.90 2.92 2.94 2.96 2.98 3.00 3.02 3.04 3.06 3.08 3.10 output voltage v out (v) i out =10ma v in =7.0v ?0 ?0 temperature topt(?c) 0 20 40 60 80 100 4.90 4.92 4.94 4.96 4.98 5.00 5.02 5.04 5.06 5.08 5.10 output voltage v out (v) i out =10ma v in =6.0v ?0 ?0 temperature topt(?c) 0 20 40 60 80 100 3.90 3.92 3.94 3.96 3.98 4.00 4.02 4.04 4.06 4.08 4.10 output voltage v out (v)
r 5rl 14 r 5rl30c 5) quiescent current vs. input voltage r 5rl50a r 5rl40a r 5rl30a r 5rl40a 6) quiescent current vs. temperature 34567 8910 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 quiescent current iss(?) topt=25?c input voltage v in (v) 45 678 910 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 quiescent current iss(?) topt=25?c input voltage v in (v) ?0 ?0 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 quiescent current iss(?) temperature topt(?c) v in =5.0v 0 20 40 60 80 100 56 78910 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 quiescent current iss(?) topt=25?c input voltage v in (v) ?0 ?0 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 quiescent current iss(?) temperature topt(?c) v in =6.0v 0 20 40 60 80 100
15 r 5rl r 5rl50a 7) dropout voltage vs. set output voltage 9) line transient response (2) 8) line transient response (1) ?0 ?0 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 quiescent current iss(?) temperature topt(?c) v in =7.0v 020 40 60 80 100 012345 6 0.0 0.2 0.1 0.3 0.4 0.5 0.6 0.7 set output voltage vreg(v) dropout voltage v dif (v) 5ma 1ma i out =10ma 01234 4.0 5.0 4.5 5.5 6.0 6.5 7.0 7.5 8.0 input voltage/output voltage(v) i out =1ma time t(ms) output voltage input voltage 012 34 4.0 5.0 4.5 5.5 6.0 6.5 7.0 7.5 8.0 input voltage/output voltage(v) i out =10ma time t(ms) input voltage output voltage
r 5rl 16 typical application in r 5rl series, a constant voltage can be obtained without using capacitors c1 and c2. however, when the wire connected to vin is long, use capacitor c1. output noise can be reduced by using 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. as shown in the circuit diagram, a dual power sup- ply circuit can be constructed by using two r 5rl series. this circuit diagram shows a dual power supply circuit with an output of 3v and an output of 5v. when the minimum output current of ic2 is larger than i ss of ic1, resistor r is unnecessary. diode d is a protection diode for the case where v out 2 becomes larger than v out 1. ? voltage boost circuit ? dual power supply circuit c2 c1 v in gnd gnd gnd r 5rl series v out v out v in + + c2 c1 v in gnd r 5rl series v out v out v in r1 r2 i ss + + c1 c2 v in gnd gnd gnd r 5rl20a r 5rl30a v out v out 1 5v v out 2 3v v in c3 gnd v out v in r i ss ic1 ic2 d + + + the output voltage can be obtained by the follow- ing formula : v out =vreg (1+r2/r1) + i ss r 2 since the quiescent current of r 5re series is so small that the resistances of r1 and r2 can be set as large as several hundreds k and therefore the sup- ply current of voltage boost circuit itself can be reduced. furthermore, since r 5rl series are operated by a constant voltage, the supply current of voltage boost circuit is not substantially affected by the input voltage. * 1) vreg : set output voltage of r 5rl series. * 1 application circuits
r 5rl 17 ? current boost circuit output current of 60ma or more can be obtained by the current boost circuit constructed as shown in this cir- cuit diagram. ? current boost circuit with overcurrent limit circuit a circuit for protecting tr.1 from the destruction caused by output short-circuit or overcurrent is shown in this circuit diagram. when the voltage reduction caused by the current ( aa i out ) which flows through r2 reaches vbe2 of tr.2 by additionally providing the current boost circuit with tr.2 and r2, tr.2 is turned on and the base current of tr.1 is increased, so that the output current is limited. current limit of overcurrent limit circuit is obtained as follows : i out vbe2/r2 ? current source a current source with the structure as shown in this circuit diagram can be used. output current i out is obtained as follows : i out = vreg /r + i ss take care that output current i out does not exceed its allowable current. c2 gnd gnd gnd r 5rl series v out v out c1 v in v in tr.1 + + c2 gnd gnd gnd r 5rl series v out v out c1 v in v in tr.1 tr.2 r1 r2 i out vbe2 + + gnd r 5rl series c1 v in v in r i out i ss v out + * 1) vreg : set output voltage of r 5rl series. * 1

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