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2002. mar. 14 rev. 1.11 - 1 - 300ma ldo regulator r1130xxxxa/b/c series outline the r1130xxxxx series are voltage regulator (vr) ics by cmos process. vr function has features of high ripple rejection, low dropout voltage, high output voltage accuracy, and ultra-low supply current. each of these ics consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, and a current limit circuit. each of the r1130xxxxa/b type includes also a chip enable circuit. output voltage of the r1130xxxxc type is adjustable with external resistors. output voltage of r1130xxxxa/b is fixed in the ic. low supply current by the merit of cmos process and built-in transistors with low on-resistance make low dropout voltage. these regulators in the r1130xxxxx series are remarkable improvement on the current regulators in terms of ripple rejection, input transient response, and load transient response. maximum output current is large for its compact size. thus, the r1130xxxxx series are suitable for power supply for cd-drives, dvd-drives, and so forth. since the package for these ics is the sot-89-5 package or hson-6p, high density mounting of the ics on boards is possible. features ultra-low supply current ? ? ? ? ? ? ? ? typ. 50a low standby current ? ? ? ? ? ? ? ? ? ? ? typ. 0.1a (vr) for a type high ripple rejection ? ? ? ? ? ? ? ? ? ? typ. 60db(f=1khz)(vr) output current ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? min. 300ma(vin=vout+1v) output voltage (vr) ? ? ? ? ? ? ? ? ? ? stepwise setting with a step of 0.1v in the range of 1.5 to 5.0v(a/b version) (reference 1.8v(c version)) high output voltage accuracy ? ? ? ? 2.0%(vr) for a/b type, 2.0%(reference voltage for adjustable vr) for c type low dropout voltage ? ? ? ? ? ? ? ? ? ? ? typ. 0.2v(i out =100ma)(vr) small packages ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? sot-89-5, hson-6p built-in current limit circuit low temperature-drift coefficient of output voltage ? ? ? ? ? ? ? ? ? typ. 100ppm/ c absolute maximum voltage ? ? ? ? ? ? 9v internal phase compensation (small output capacitance such as 0.1uf ceramic can be used with.) applications power source for cd-drives and dvd-drives, hdd. local power source for notebook pc.
rev. 1.11 - 2 - block diagrams r1130hxxxa r1130dxxxa v dd v out gnd 3 2 1 current limit + - vref 5 ce v dd v out gnd 2 1 6 current limit + - vref 5 ce r1130hxxxb r1130dxxxb v dd out gnd ce v 3 2 1 current limit + - vref 5 v dd out gnd ce v 2 1 6 current limit + - vref 5 r1130hxxxc r1130dxxxc v dd v out gnd 3 2 1 current limit + - vref 5 a dj 4 ce v dd v out gnd 2 1 6 current limit + - vref 5 a dj 3 ce
rev. 1.11 -3- selection guide the output voltage, chip-enable polarity, the taping type can be selected at the user ? s request. the selection can be made with designating the part number as follows; r1130x xxxx-xx part number a b c d code contents a package type; h: sot89-5, d: hson6 b serial number for voltage setting c designation of option; a: fixed output voltage regulator with ce pin ("l" enable) b: fixed output voltage regulator with ce pin ("h" enable) c: output voltage adjustable regulator with ce pin ("h" enable) d designation of taping type; t1 or t2 (refer to taping specifications) for sot89-5 tr or tl for hson-6p pin configuration sot-89-5 5 4 1 2 3 mark side hson-6p 1 2 3 6 5 4 mark side
rev. 1.11 - 4 - pin description sot89-5 pin no. symbol description 1v out voltage regulator output pin 2v dd input pin 3 gnd ground pin n.c.(a/b type) no connection 4 adj(c type) adjustable regulator feedback input pin (connect to resistor voltage divider.) 5 ce (a type) or ce(b/c type) chip enable pin hson-6p pin no. symbol description 1v dd input pin 2 gnd ground pin n.c.(a/b type) no connection 3 adj(c type) adjustable regulator feedback input pin (connect to resistor voltage divider.) 4 n.c. no connection 5 ce (a type) or ce(b/c type) chip enable pin 6v out voltage regulator output pin absolute maximum ratings item symbol rating unit input voltage v in 9.0 v input voltage(ce or ce input pin) v ce -0.3 ~ v in +0.3 v input voltage(adj input pin) v adj -0.3 ~ v in +0.3 v output voltage v out -0.3 ~ v in +0.3 v output current i out 450 ma power dissipation (sot-89-5) p d 500 mw power dissipation (hson6) p d 400 mw operating temperature t opt -40 ~ 85 c storage temperature t stg -55 ~ 125 c
rev. 1.11 -5- electrical characteristics r1130xxxxa (topt=25 c) symbol item conditions min. typ. max. unit v in input voltage 2.5 8.0 v i ss1 supply current1 v in -v out =1.0v v in =gnd 50 100 a i stby standby current v in -v out =1.0v v in =v ce 0.1 1.0 a v out output voltage v in -v out =1.0v 1ma i out 80ma x0.98 set v out x1.02 v i out1 output current refer to the table of input voltage by set output voltage 300 ma ? v out / ? i out load regulation v in -v out =1.0v 1ma i out 80ma 40 80 mv v dif dropout voltage i out =100ma refer to the table of dropout voltage by set output voltage ? v out / ? v in line regulation i out =80ma, set v out 2.0v:v out +0.5v v in 8.0v set v out 1.9v:2.5v v in 8.0v 0.1 0.2 %/v rr ripple rejection f=1khz,ripple 0.5vp-p, i out =80ma set v out 1.8v: v in -v out =1.0v set v out 1.7v: v in=2.8v 60 db ? v out / ? t output voltage temperature coefficient i out =10ma, v in -v out =1.0v -40 c topt 85 c 100 ppm / c set v out 3.9v , v out =0v 70 i lim short current limit set v out 4.0v , v out =0v 50 ma r pu pull-up resistance for ce pin 2.5 5.0 10.0 m ? v ceh ce input voltage ?h? v in =2.5v 1.5 v in v v cel ce input voltage ?l? v in =2.5v 0.00 0.25 v
rev. 1.11 - 6 - r1130xxxxb (topt=25 c) symbol item conditions min. typ. max. unit v in input voltage 2.5 8.0 v i ss1 supply current1 v in -v out =1.0v v in =v ce 50 100 a i stby standby current v in -v out =1.0v v in =gnd 0.1 a v out output voltage v in -v out =1.0v 1ma i out 80ma x0.98 set v out x1.02 v i out1 output current refer to the table of input voltage by set output voltage 300 ma ? v out / ? i out load regulation v in -v out =1.0v 1ma i out 80ma 40 80 mv v dif dropout voltage i out =100ma refer to the table of dropout voltage by set output voltage ? v out / ? v in line regulation i out =80ma set v out 2.0v: v out +0.5v v in 8v set v out 1.9v:2.5v vin 8.0v 0.1 0.2 %/v rr ripple rejection f=1khz,ripple 0.5vp-p, i out =80ma set v out 1.8v : v in -v out =1.0v set v out 1.7v: v in =2.8v 60 db ? v out / ? topt output voltage temperature coefficient i out =10ma, v in -v out =1.0v -40 c topt 85 c 100 ppm / c set v out 3.9v , v out =0v 70 i lim short current limit set v out 4.0v , v out =0v 50 ma r pd pull-down resistance for ce pin 2.5 5 10 m ? v ceh ce input voltage ?h? v in =2.5v 1.5 v in v v cel ce input voltage ?l? v in =2.5v 0 0.25 v dropout voltage by set output voltage (topt=25 c) input voltage by set output voltage (topt=25 c) dropout voltage (v) output voltage v out(v) input voltage (v) output voltage v out(v) typ. max. 1.5v v out 1.9v v in= v out+ 1.5v v out =1.5 1.00 1.05 2.0v v out 2.7v v in= v out+ 1.3v v out =1.6 0.90 0.95 2.8v v out 5.0v v in= v out+ 1.0v v out =1.7 0.80 0.85 v out =1.8 0.70 0.75 v out =1.9 0.60 0.65 v out =2.0 0.50 0.60 v out =2.1 0.40 0.55 2.2v v out 2.5v 0.30 0.49 2.6v v out 3.3v 0.25 0.34 3.4v v out 5.0v 0.20 0.28
rev. 1.11 -7- r1130xxxxc (topt=25 c) symbol item conditions min. typ. max. unit v in input voltage 2.5 8.0 v i ss1 supply current v in -v out =1.0v, v in =v ce 50 100 a istby standby current v in -v out =1.0v v in =gnd 0.1 1.0 a v out reference voltage for adjustable voltage regulator v out =v adj, v in -v out =1.0v i out= 80ma 1.764 1.800 1.836 v i out1 output current v out =v adj, v in -v out =1.5v 300 ma ? v out / ? i out load regulation v in =2.5v, v out =v adj 1ma i out 80ma 40 80 mv v dif dropout voltage i out =100ma, v out =v adj 0.70 0.75 v ? v out / ? v in line regulation i out =80ma, v out =v adj 2.5v v in 8v 0.1 0.2 %/v rr ripple rejection f=1khz,ripple 0.5vp-p, i out =80ma,v in -v out =1.0v v out =v adj, i out= 80ma 60 db ? v out / ? topt output voltage temperature coefficient i out =10ma, v in -v out =1.0v -40 c topt 85 c 100 ppm / c i lim short current limit v out =0v 70 ma r pd pull-down resistance for ce pin 2.5 5 10 m ? v ceh ce input voltage ?h? v in =2.5v 1.5 v in v v cel ce input voltage ?l? v in =2.5v 0 0.25 v
rev. 1.11 - 8 - test circuits standard test circuit v out gnd ce r1130x xxxa series in iout 0.1uf in iss test circuit for supply current gnd ce v dd r1130x xxxaseries test circuit for ripple rejection and input transient response p.g gnd ce r1130x xxxaseries in iout test circuit for load transient response i1 i2 gnd ce r1130x xxxaseries in iout v dd v out 0.1uf 0.1uf 0.1uf v dd v out 0.1uf v dd v out 0.1uf 0.1uf + + + + + + + nc nc nc nc
rev. 1.11 -9- standard test circuit v out gnd ce v dd r1130x xxxb series in iout 0 .1uf in iss test circuit for supply current gnd ce r1130x xxxb series test circuit for ripple rejection and input transient response p.g gnd ce r1130x xxxb series in iout test circuit for load transient response i1 i2 gnd ce r1130x xxxb series in iout 0.1uf v dd v out 0.1uf 0.1uf v dd v out 0.1uf 0.1uf v dd v out 0.1uf + + + + + + + nc nc nc nc
rev. 1.11 - 10 - standard test circuit v out gnd ce v dd r1130x001c in iout 0 .1 f in iss test circuit for supply current gnd ce r1130x001c test circuit for ripple rejection and input transient response p.g gnd ce r1130x001c in iout test circuit for load transient response i1 i2 gnd ce r1130x001c in iout 0.1 f v dd v out 0.1 f 0.1 f v dd v out 0.1 f 0.1 f v dd v out 0.1 f + + + + + + + adj adj adj adj
rev. 1.11 -11- typical appplication in v dd gnd v out c1 + c2 + r1130xxxxa ce c1=c2=0.1 f in v dd ce gnd v out c1 + c2 + r1130xxxxb c1=c2=0.1 f in v dd a dj gnd v out c1 + c2 + r1130xxxxc ce r3 r2 c1=c2=0.1uf, r2, r3: refer to the technical notes on output voltage setting of c type.
rev. 1.11 - 12 - typical characteristics 1) output voltage vs. output current (topt=25 c) r1130x151b 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 100 200 300 400 500 600 700 800 output current i out (ma) output voltage v out (v) v in =4.5v 3.5v 3.0v r1130x331b 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 100 200 300 400 500 600 700 800 output current i out (ma) output voltage v out (v) v in =5.3 v 4.3 v 3.8 v r1130x501b 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 100 200 300 400 500 600 700 800 output current i out (ma) output voltage v out (v) v in =7.0v 6.0v 5.5v 2) input voltage vs. output voltage (topt=25 c) r1130x151b 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2345678 input voltage v in (v) output voltage v out (v) i out =1ma 80ma r1130x331b 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 2345678 input voltage v in (v) output voltage v out (v) i out =1ma 80ma
rev. 1.11 -13- r1130x501b 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2345678 input voltage v in (v) output voltage v out (v) i out =1ma 80ma 3) dropout voltage vs. output current r1130x151b 0.0 0.5 1.0 1.5 2.0 2.5 0 50 100 150 200 250 300 output current i out (ma) dropout voltage v dif (v) topt=85 25 -40 r1130x331b 0.0 0.5 1.0 1.5 2.0 2.5 0 50 100 150 200 250 300 output current i out (ma) dropout voltage v dif (v) topt=85 25 -40 r1130x501b 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 50 100 150 200 250 300 output current i out (ma) dropout voltage v dif (v) topt=85 25 -40 c c c c c c c c c
rev. 1.11 - 14 - 4) output voltage vs. temperature r1130x151b 1.40 1.42 1.44 1.46 1.48 1.50 1.52 1.54 1.56 1.58 1.60 -50 -25 0 25 50 75 100 temperature topt output voltage v out (v) i out =80ma r1130x331b 3.20 3.22 3.24 3.26 3.28 3.30 3.32 3.34 3.36 3.38 3.40 -50 -25 0 25 50 75 100 temperature topt output voltage v out (v) i out =80ma r1130x501b 4.90 4.92 4.94 4.96 4.98 5.00 5.02 5.04 5.06 5.08 5.10 -50 -25 0 25 50 75 100 temperature topt output voltage v out (v) i out =80ma 5) supply current vs. input voltage(topt=25 c) r1130x151b 0 10 20 30 40 50 60 70 80 2345678 input voltage v in (v) supply current iss (ua) r1130x331b 0 10 20 30 40 50 60 70 80 2345678 input voltage v in (v) supply current iss (ua) ( c) ( c) ( c)
rev. 1.11 -15- r1130x501b 0 10 20 30 40 50 60 70 80 2345678 input voltage v in (v) supply current iss (ua) 6) supply current vs. temperature r1130x151b 0 10 20 30 40 50 60 70 80 90 100 -50 -25 0 25 50 75 100 temperature topt supply current iss (ua) v in =2.5v r1130x331b 0 10 20 30 40 50 60 70 80 90 100 -50 -25 0 25 50 75 100 temperature topt supply current iss (ua) v in =4.3v r1130x501b 0 10 20 30 40 50 60 70 80 90 100 -50 -25 0 25 50 75 100 temperature topt supply current iss (ua) v in =6.0v ( c) ( c) ( c)
rev. 1.11 - 16 - 7) ripple rejection vs. frequency r1130x151b 0 10 20 30 40 50 60 70 80 90 0.01 0.1 1 10 100 frequency f(khz) ripple rejection rr (db) v in =v out +1v, 0.5vp-p c out =0.1u f r1130x331b 0 10 20 30 40 50 60 70 80 90 0.01 0.1 1 10 100 frequency f(khz) ripple rejection rr(db) v in =v out +1v, 0.5vp-p c out =0.1u f r1130x501b 0 10 20 30 40 50 60 70 80 90 0.01 0.1 1 10 100 frequency f(khz) ripple rejection rr (db) v in =v out +1v, 0.5vp-p c out =0.1u f 8) ripple rejection vs. input voltage r1130x151b 0 10 20 30 40 50 60 70 80 90 1.5 2.0 2.5 3.0 3.5 4.0 input voltage v in (v) ripple rejection rr (db) f=400hz 1khz 10khz r1130x331b 0 10 20 30 40 50 60 70 80 90 3.0 3.5 4.0 4.5 5.0 5.5 input voltage v in (v) ripple rejection rr(db) f=400hz 1khz 10khz
rev. 1.11 -17- r1130x501b 0 10 20 30 40 50 60 70 80 90 5.0 5.5 6.0 6.5 7.0 input voltage v in (v) ripple rejection rr(db) f=400hz 1khz 10khz 9) input transient response r1130x151b 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 0 20 40 60 80 100 120 140 160 180 200 time (us) output voltage v out (v) -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 input voltage v in (v) input voltage output voltage i out =80m a tr=tf=5us c out =0.1uf r1130x331b 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 0 20 40 60 80 100 120 140 160 180 200 time (us) output voltage v out (v) -1.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 input voltage v in (v) i out =80ma tr=tf=5us c out =0.1uf input voltage output voltage
rev. 1.11 - 18 - r1130x501b 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 0 20 40 60 80 100 120 140 160 180 200 time (us) output voltage v out (v) 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 input voltage v in (v) i out =80ma tr=tf=5us c out =0.1uf input voltage output voltage 10) load transient response r1130x151b 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 0 20 40 60 80 100 120 140 160 180 200 time (us) output voltage v out (v) -250 -200 -150 -100 -50 0 50 100 150 output current i out (ma) v in =2.5v c in =1.0uf c out =0.1uf output current output voltage r1130x331b 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 0 20 40 60 80 100 120 140 160 180 200 time (us) output voltage v out (v) -250 -200 -150 -100 -50 0 50 100 150 output current i out (ma) v in =4.3v c in =1.0uf c out =0.1uf output voltage output current
rev. 1.11 -19- r1130x501b 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 0 20 40 60 80 100 120 140 160 180 200 time (us) output voltage v out (v) -250 -200 -150 -100 -50 0 50 100 150 output current i out (ma) v in =6.0v c in =1.0uf c out =0.1uf output voltage output current appendix * technical notes on output voltage setting of c type figure 1. adjustable regulator (c type) r3 adj gnd r ic i ic r2 i2 i3 v out 1.8v v out the output voltage of regulator in r1130xxxxc may be adjustable for any output voltage between its 1.8v reference and its v dd setting level. an external pair of resistors is required, as shown in figure 1. the complete equation for the output voltage is described step by step as follows; i 2 =i ic +i 3 ? ? ? (1) i 3 =1.8/r 3 ? ? ? (2) thus, i 2 = i ic +1.8/r 3 ? ? ? (3) therefore, v out =1.8+r 2 i 2 ? ? ? (4) put equation (3) into equation (4), then v out =1.8+r 2 (i ic +2.0/r3) =1.8 (1+r 2 /r 3 )+r 2 i ic ? ? ? (5) in 2 nd term, or r2 iic will produce an error in v out. in equation (5), i ic =1.8/r ic ? ? ? (6) r 2 i ic =r 2 2.0/r ic =1.8 r 2 /r ic ? ? ? (7) for better accuracy, choosing r 2 (< rev. 1.11 - 20 - * adjustable resister dependence of output voltage r1130x001c 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 5 10 15 20 r2 resistance (kohm) output voltage v out (v) r3=10kohm topt=25 r1130x001c 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 50 100 150 200 r2 resistance (kohm) output voltage v out (v) r3=100kohm topt=25 c c

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