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mitsumi regulator ic with the soft-start mm192x series regulator ic with the soft-start monolithic ic mm192x series outline this ic is 1a regulator ic with soft-start. when cs pin is connected with a capacitor, the output voltage is started up slowly. this ic can reduce a rush current by the soft-start. therefore a transformer in a power supply for this ic can be small, and it is possible to reduce a total cost in the power supply system. and this ic can be turned off by cont pin. package to-252-5 or hsop-8 were used for this device. features 1. input voltage range 2.4v~12v 2. output voltage range 12v~5.1v 3. output voltage accuracy 1 (v out 1.5v) : v out 30mv 4. output voltage accuracy 2 (v out 1.5v) : v out 2% 5. maximum output current 1a 6. supply current 1ma typ. (no-load input current) 1a max. (off) 7. dropout voltage 0.3v max. (i o =500ma), 0.6v max. (i o =1a) 8. line regulation 10mv typ., 20mv max. (i o =250ma) 9. load regulation 20mv typ., 100mv max. (i o =1ma~1a) 10. output capacitor 1f 11. output rise time 10msec typ. (cs capacitor=0.1f) 12. with on/off control pin package to-252-5 hsop-8a applications 1. dvd recorders 2. blu-ray disc recorders 3. tvs phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series pin assignment block diagram bias thermal shutdown reference current limitter gnd v in c s c ont rcs ru amp protect r soft start v o 14 3 25 to - 252-5 (top view) 14 32 85 67 hsop - 8a (top view) 1 cont 2 v in 3 gnd 4 v o 5 cs 1 v o 2 nc 3 gnd 4 cs 5 cont 6 nc 7 nc 8 v in phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series pin description to-252-5 pin no. pin name functions 1 cont on/off?control pin cont output low off high on connect cont pin with v in pin, when it is not used. 2 v in voltage?supply pin 3 gnd ground 4 v o output pin 5 cs soft-start pin hsop-8a pin no. pin name functions 1 v o output pin 2 nc no connection 3 gnd ground 4 cs soft-start pin 5 cont on/off?control pin cont output low off high on connect cont pin with v in pin, when it is not used. 6 nc no connection 7 nc no connection 8 v in voltage?supply pin item symbol ratings units storage temperature t stg ?40~+150 c supply voltage v in 13.2 v power dissipation pd 2.5(note1) to-252-5 w 1.8(note2) hsop-8a absolute maximum ratings ( except where noted otherwise ta=25c) note1 : with the double sided pc board of glass epoxy (copper plane 80%, 150 100 1.0 t mm) note2 : with the double sided pc board of glass epoxy (copper plane 80%, 37 37 1.6 t mm) item symbol ratings units operating ambient temperature t jop - 40~85 c operating voltage v op v o 2.0v 2.4~12 v o 2.0v vo (typ.) + 0.5 ~ 12 v output current i o 0~1 a recommended operating conditions ( except where noted otherwise ta=25c) phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series electrical characteristics 1 (except where noted otherwise v in =v o +1v, v cont =v in , ta=25c) note3 : the parameter is guaranteed by design. note4 : the parameter has thermal shutdown hysteresis. item symbol measurement conditions min. typ. max. units input current(off) iinoff v cont =0v 1 ? no-load input current iin i o =0ma 1 2 ma output voltage tolerance v o i o =250ma v o 1.5v - 22% i o =250ma v o 1.5v - 30 30 mv line regulation v line v in =v o +1.5~v o +2.5v, i o =250ma 10 20 mv load regulation v load 1ma i o 1a 20 100 mv dropout voltage 1 vio1 v in =vo-0.2v, i o =500ma 0.3 v dropout voltage 2 vio2 v in =vo-0.2v, i o =1a 0.6 v ripple rejection rr f=1khz, vripple=1v, i o =250ma (note3) 70 db v out temperature coef? cient v out / t - 40 t op 85? (note3) ?00 ppm/? output rise time tr v cont =l h~v o 0.9, cs=0.1? (note3) 10 ms cs discharge resistance rcs 63 90 117 k cont pin input current i cont v cont =5v 10 20 30 ? cont pin high threshold level v cont h2 v cont pin low threshold level v cont l1 v thermal shutdown tsd (note3, 4) 110 130 150 ? phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series electrical characteristics 2 (except where noted otherwise v in =v o +0.5v, i o =1ma, ta=25c) model no. measurement conditions output voltage (v) min. typ. max. mm1921c ta =25c v in =2.4v i o =250ma 1.170 1.2 1.230 mm1921z 1.230 1.26 1.290 mm1921d 1.270 1.3 1.330 mm1921e 1.370 1.4 1.430 mm1921f 1.470 1.5 1.530 mm1921g 1.568 1.6 1.632 mm1921h 1.666 1.7 1.734 mm1921j 1.764 1.8 1.836 mm1921k 1.862 1.9 1.938 mm1922a ta =25c v in =v o +1v i o =250ma 1.960 2.0 2.040 mm1922b 2.058 2.1 2.142 mm1922c 2.156 2.2 2.244 mm1922d 2.254 2.3 2.346 mm1922e 2.352 2.4 2.448 mm1922f 2.450 2.5 2.550 mm1922g 2.548 2.6 2.652 mm1922h 2.646 2.7 2.754 mm1922j 2.744 2.8 2.856 mm1922k 2.842 2.9 2.958 mm1923a 2.940 3.0 3.060 mm1923b 3.038 3.1 3.162 mm1923c 3.136 3.2 3.264 mm1923d 3.234 3.3 3.366 mm1923e 3.332 3.4 3.468 MM1923F 3.430 3.5 3.570 mm1923g 3.528 3.6 3.672 mm1923h 3.626 3.7 3.774 mm1923j 3.724 3.8 3.876 mm1923k 3.822 3.9 3.978 mm1924a 3.920 4.0 4.080 mm1924b 4.018 4.1 4.182 mm1924c 4.116 4.2 4.284 mm1924d 4.214 4.3 4.386 mm1924e 4.312 4.4 4.488 mm1924f 4.410 4.5 4.590 mm1924g 4.508 4.6 4.692 mm1924h 4.606 4.7 4.794 mm1924j 4.704 4.8 4.896 mm1924k 4.802 4.9 4.998 mm1925a 4.900 5.0 5.100 mm1925b 4.998 5.1 5.202 mm1923w 3.283 3.35 3.417 mm1923y 3.773 3.85 3.927 phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series measuring circuit application circuit v a a a cont v in v o cs gnd 1f 1f 0.1f (reference example of external parts) ?output capacitor c o ceramic capacitor (b temperature characteristics) 1f ?input capacitor c in ceramic capacitor 1f ?softstart capacitor cs ceramic capacitor 0.1f c o 2c o 1 cont v in v o cs gnd 1f 0.1f cin co1 co2 capacity capacity kind characteristics capacity kind characteristics - 40c top 85c 1.0for more ceramic b type/x5r free al electrolytic standard 1.0for more ceramic b type/x5r using only by al electrolytic does not recommend. phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series ?note 1. the output capacitor is required between output and gnd to prevent oscillation. 2. the esr of capacitor must be de ned in esr stability area. 3. the wire of vcc and gnd is required to print full ground plane for noise and stability. 4. the input capacitor must be connected a distance of less than 1cm from input pin. 5. in case the output voltage is above the input voltage, the overcurrent ow by internal parasitic diode from output to input. therefore please connect a schottoky barrier diode from output to input. 6. please connect the soft-start capacitor(cs) more than 0.01f, if not, there's possible to occur oscillation. 7. the output capacitor and the softstart capacitor must be connected it within the limits a rush current peak level 1a showed in the typical performance characteristics. 8. when rush current exceeds 1a, it is restricted with the current limit set up with the chip, an output rise time is uncontrollable by soft-start capacitor. 9. when use connecting vin and cont, in the case of starting vin in input rise time longer then the set-up soft-start time, an output rise time is decied by a vin input rise time. moreover, in this case, in the case of the vo-model 2.4v, since there is a period when output voltage is raised to input voltage by vin 2.4v, vin input rise time earlier than the set-up soft-start time is recommended. 10. when use vin in a smalll dropout voltage, there's possible to occur oscillation. in this case, connect the input capacitor(cin) or output capacitor(co) more than 10f is recommended. v in cont v o cs gnd schottky barrier diode phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series t t t t 0 l h 0 vo 0 0.65v 0 100ma t v in c ont v o output voltage cs soft start pin iin input current timing chart phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series land pattern recommendation about power dissipation this ic's gnd pin and heat spreader bottom effectively radiate heat. by increasing these copper foil pattern area of pcb, power dissipation improves. please kindly design pcb pattern taking care of above features about power dissipation. note : these dimensions are the reference values. 0 500 1000 1500 2000 2500 3000 0 25 50 75 100 125 150 ambient temperature(?c) power dissipation(mw) hsop-8a : 37371.6 t mm double sided glass epoxy copper plane 80% to-252-5 : 1501001.0 t mm double sided glass epoxy copper plane 80% hsop-8a 4.41mm 1.1mm 0.6mm 4.7mm 3.1mm 2.9mm 5.34mm 5.61mm 10.10mm 1.924mm 0.65mm 1.27mm to-252-5 hsop-8a phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series characteristics (vo=1.26v) output - input voltage (except where noted otherwise v in =2.4v, v cont =v in , cin=1.0f, c o =1.0f, cs=0.1f, ta=25c) line regulation load current - output voltage load regulation input voltage - input current 56 1234 0 0.0 1.0 0.5 2.0 1.5 output voltage (v) input voltage (v) r l =5.0, 2.5, 1.26 r l = 6 7 8 9 10 11 12 345 2 50 20 10 40 30 0 ?10 ?20 ?30 ?40 ?50 i o =250ma input voltage (v) line regulation (mv) 2.01.81.61.41.21.00.80.60.40.20.0 2.0 0.0 1.5 1.0 0.5 output voltage (v) load current (a) 1.00.90.80.70.60.50.40.30.20.10.0 0 50 40 ?50 30 20 10 ?10 ?20 ?30 ?40 load current (a) load regulation (mv) 65 48 710 912 11 123 0 0 2 4 10 8 6 20 18 14 12 16 input voltage (v) input current (ma) r l = phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series output voltage - temperature output rise time rush current peak level esr stable area 1501251007550250?25 tempereture (oc) output voltage (v) 1.40 1.35 1.10 1.30 1.25 1.20 1.15 to-252-5 hsop-8a v cont =2v v o =1.26v current 1v/div 4msec/div 2ma/div 0v 0ma 0.1 1 0.1 1 0.01 100 10 1000 10000 rush current peak level (ma) cs ( f) co1=2200f co1=1000f co1=470f co2=1f only co1=10f co1=47f co1=100f x-axis : log 0.1 1 0.4 0.6 0.8 0.2 1.0 0.0 100 10 1000 10000 rush current peak level (ma) cs ( f) co1=100f co1=470f co1=2200f co1=1000f co2=1f only co1=10f co1=47f x-axis : linear ? please refer to note 7,8. ? please refer to note 7,8. phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series characteristics (vo=3.3v) (except where noted otherwise v in =v o +1v, v cont =v in , cin=1.0f, c o =1.0f, cs=0.1f, ta=25c) dropout voltage 0.4 0.5 0.70.6 0.8 0.9 1.0 1.1 1.2 0.1 0.2 0.3 0.0 0.8 0.5 0.4 0.7 0.6 0.3 0.2 0.1 0.0 v in =3.1v dropout voltage (v) load current (a) 56 1234 0 0.0 2.0 1.5 0.5 2.5 1 4.0 3.5 3.0 output voltage (v) input voltage (v) r l = , 13.2, 6.6, 3.3 6 7 8 9 10 11 12 345 2 50 20 10 40 30 0 ?10 ?20 ?30 ?40 ?50 i o =250ma input voltage (v) line regulation (mv) 2.01.81.61.41.21.00.80.60.40.20.0 4.0 3.5 0.0 3.0 2.5 2.0 1.5 1.0 0.5 output voltage (v) load current (a) 1.00.90.80.70.60.50.40.30.20.10.0 0 50 40 ?50 30 20 10 ?10 ?20 ?30 ?40 load current (a) load regulation (mv) 65 48 710 912 11 123 0 0 2 4 10 8 6 20 18 14 12 16 input voltage (v) input current (ma) r l = output - input voltage line regulation load current - output voltage load regulation input voltage - input current phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series output voltage - temperature output rise time rush current peak level rush current peak level 1501251007550250 ?50 ?25 3.50 3.10 3.45 3.40 3.35 3.30 3.25 3.20 3.15 to-252-5 hsop-8a tempereture (oc) output voltage (v) v cont =2v v o =3.3v current 1v/div 2ma/div 4msec/div 0v 0ma 0.1 1 0.1 1 0.01 100 10 1000 10000 rush current peak level (ma) cs ( f) co1=2200f co1=1000f co1=470f co2=1f only co1=10f co1=47f co1=100f x-axis : log 0.1 1 0.4 0.6 0.8 0.2 1.0 0.0 100 10 1000 10000 rush current peak level (ma) cs ( f) co1=100f co1=470f co1=2200f co1=1000f co2=1f only co1=10f co1=47f x-axis : linear ? please refer to note 7,8. ? please refer to note 7,8. phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series characteristics (vo=5.1v) (except where noted otherwise v in =v o +1v, v cont =v in , cin=1.0f, c o =1.0f, cs=0.1f, ta=25c) dropout voltage 0.4 0.5 0.70.6 0.8 0.9 1.0 1.1 1.2 0.1 0.2 0.3 0.0 0.8 0.5 0.4 0.7 0.6 0.3 0.2 0.1 0.0 v in =4.9v dropout voltage (v) load current (a) 67 58 1234 0 0.0 2.0 1.0 3.0 6.0 5.0 4.0 output voltage (v) input voltage (v) r l = , 20.4, 10.2, 5.1 6 7 8 9 10 11 12 345 2 50 20 10 40 30 0 ?10 ?20 ?30 ?40 ?50 i o =250ma input voltage (v) line regulation (mv) 2.01.81.61.41.21.00.80.60.40.20.0 6.0 0.0 5.0 4.0 3.0 2.0 1.0 output voltage (v) load current (a) 1.00.90.80.70.60.50.40.30.20.10.0 0 50 40 ?50 30 20 10 ?10 ?20 ?30 ?40 load current (a) load regulation (mv) 65 48 710 912 11 123 0 0 2 4 10 8 6 20 18 14 12 16 input voltage (v) input current (ma) r l = output - input voltage line regulation load current - output voltage load regulation input voltage - input current phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series output voltage - temperature output rise time rush current peak level rush current peak level 1501251007550250 ?50 ?25 5.30 4.90 5.20 5.25 5.15 5.10 5.05 5.00 4.95 tempereture (oc) output voltage (v) to-252-5 hsop-8a v cont =2v v o =5.1v current 1v/div 5ma/div 4msec/div 0v 0ma 0.1 1 0.1 1 0.01 100 10 1000 10000 rush current peak level (ma) cs ( f) co1=2200f co1=1000f co1=470f co2=1f only co1=10f co1=47f co1=100f x-axis : log 0.1 1 0.4 0.6 0.8 0.2 1.0 0.0 100 10 1000 10000 rush current peak level (ma) cs ( f) co1=100f co1=470f co1=2200f co1=1000f co2=1f only co1=10f co1=47f x-axis : linear ? please refer to note 7,8. ? please refer to note 7,8. phased out products free datasheet http://
mitsumi regulator ic with the soft-start mm192x series characteristics (except where noted otherwise v in =v o +1v, v cont =v in , cin=1.0f, c o =1.0f, cs=0.1f, ta=25c) ?100 10 1000 100 0.1 1 0.01 ?80 ?90 ?40 ?50 ?60 ?70 0 ?20 ?30 ?10 r l =6.6 r l =3.3k r l =13.2 v o =3.3v, vripple=1v frequency (khz) ripple rejection (db) ?100 10 1000 100 0.1 1 0.01 ?80 ?90 ?40 ?50 ?60 ?70 0 ?20 ?30 ?10 cs=0.01 f cs=0.1 f v o =3.3v, r l =13.2 , vripple=1v frequency (khz) ripple rejection (db) 0.1 1 0.1 1 0.01 100 10 1000 output rise time (msec) cs ( f) v cont =l h~v o 0.9v 0.001 0.01 400 1000 600 800 2000 0.1 1 10 instable area output current (ma) esr ( ) stable area ripple rejection ripple rejection output rise time load regulation phased out products free datasheet http://

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