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? semiconductor components industries, llc, 2013 october, 2013 ? rev. 16 1 publication order number: mc33375/d mc33375, ncv33375 series 300 ma, low dropout voltage regulator with on/off control the mc33375 series are micropower low dropout voltage regulators available in a wide variety of output voltages as well as packages, sot ? 223 and sop ? 8. these devices feature a very low quiescent current and are capable of supplying output currents up to 300 ma. internal current and thermal limiting protection are provided by the presence of a short circuit at the output and an internal thermal shutdown circuit. the mc33375 has a control pin that allows a logic level signal to turn ? off or turn ? on the regulator output. due to the low input ? to ? output voltage differential and bias current specifications, these devices are ideally suited for battery powered computer, consumer, and industrial equipment where an extension of useful battery life is desirable. features: ? low quiescent current (0.3 a in off mode; 125 a in on mode) ? low input ? to ? output v oltage differential of 25 mv at i o = 10 ma, and 260 mv at i o = 300 ma ? extremely tight line and load regulation ? stable with output capacitance of only 0.33 f for 2.5 v output voltage ? internal current and thermal limiting ? logic level on/off control ? ncv prefix for automotive and other applications requiring unique site and control change requirements; aec ? q100 qualified and ppap capable ? these are pb ? free devices figure 1. simplified block diagram v in thermal & anti ? sat protection 54 k rint this device contains 41 active transistors 1.23 v v. ref. v out gnd on/off block on/off low dropout micropower voltage regulator soic ? 8 d suffix case 751 sot ? 223 st suffix case 318e 4 1 ordering information see detailed ordering and shipping information in the package dimensions section on page 11 of this data sheet. http://onsemi.com 1 aym 375xx marking diagrams a = assembly location y = year m = date code l = wafer lot w = work week xx = voltage version = pb ? free package 1 8 375xx alyw 1 8 (note: microdot may be in either location)
mc33375, ncv33375 series http://onsemi.com 2 gnd v in v out 4 123 on/ off input gnd gnd on/off output gnd gnd n/c 1 2 3 4 8 7 6 5 pin connections maximum ratings rating symbol value unit input voltage v cc 13 vdc power dissipation and thermal characteristics t a = 25 c maximum power dissipation case 751 (sop ? 8) d suffix thermal resistance, junction ? to ? ambient thermal resistance, junction ? to ? case case 318e (sot ? 223) st suffix thermal resistance, junction ? to ? air thermal resistance, junction ? to ? case p d r ja r jc r ja r jc internally limited 160 25 245 15 w c/w c/w c/w c/w output current i o 300 ma maximum junction temperature t j 150 c operating ambient temperature range t a ? 40 to +125 c storage temperature range t stg ? 65 to +150 c stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above t he recommended operating conditions is not implied. extended exposure to stresses above the recommended operating conditions may af fect device reliability.
mc33375, ncv33375 series http://onsemi.com 3 electrical characteristics (c l = 1.0 f, t a = 25 c, for min/max values t j = ? 40 c to +125 c, note 1) characteristic symbol min typ max unit output voltage i o = 0 ma to 250 ma 1.8 v suffix t a = 25 c, v in = [v o + 1] v 2.5 v suffix 3.0 v suffix 3.3 v suffix 5.0 v suffix 1.8 v suffix v in = [v o + 1] v, 0 < i o < 100 ma 2.5 v suffix 2% tolerance from t j = ? 40 to +125 c 3.0 v suffix 3.3 v suffix 5.0 v suffix v o 1.782 2.475 2.970 3.267 4.950 1.764 2.450 2.940 3.234 4.900 1.80 2.50 3.00 3.30 5.00 ? ? ? ? ? 1.818 2.525 3.030 3.333 5.05 1.836 2.550 3.060 3.366 5.100 vdc line regulation v in = [v o + 1] v to 12 v, i o = 250 ma, all suffixes t a = 25 c reg line ? 2.0 10 mv load regulation v in = [v o + 1] v, i o = 0 ma to 250 ma, all suffixes t a = 25 c reg load ? 5.0 25 mv dropout voltage (note 3) i o = 10 ma t j = ? 40 c to +125 c i o = 100 ma i o = 250 ma i o = 300 ma v in ? v o ? ? ? ? 25 115 220 260 100 200 400 500 mv ripple rejection (120 hz) v in(peak ? peak) = [v o + 1.5] v to [v o + 5.5] v ? 65 75 ? db output noise voltage c l = 1.0 fi o = 50 ma (10 hz to 100 khz) c l = 200 f v n ? ? 160 46 ? ? vrms current parameters quiescent current on mode v in = [v o + 1] v, i o = 0 ma i qon ? 125 200 a quiescent current off mode i qoff ? 0.3 4.0 a quiescent current on mode sat v in = [v o ? 0.5] v, i o = 0 ma (notes 2, 4) 3.0 v suffix 3.3 v suffix 5.0 v suffix i qsat ? ? ? 1500 1500 1500 2000 2000 2000 a current limit v in = [v o + 1] v, v o shorted i limit ? 450 ? ma on/off inputs on/off input voltage logic ?1? (regulator on) v out = v o 2% logic ?0? (regulator off) v out < 0.03 v logic ?0? (regulator off) v out < 0.05 v (1.8 v option) v ctrl 2.4 ? ? ? ? ? ? 0.5 0.3 v thermal shutdown thermal shutdown ? ? 150 ? c 1. low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible. 2. quiescent current is measured where the pnp pass transistor is in saturation. v in = [v o ? 0.5] v guarantees this condition. 3. for 1.8 v version v do is constrained by the minimum input voltage of 2.5 v. 4. for 1.8 v and 2.5 v versions, i qsat is constrained by the minimum input voltage of 2.5 v.
mc33375, ncv33375 series http://onsemi.com 4 definitions load regulation ? the change in output voltage for a change in load current at constant chip temperature. dropout v oltage ? the input/output dif ferential at which the regulator output no longer maintains regulation against further reductions in input voltage. measured when the output drops 100 mv below its nominal value (which is measured at 1.0 v differential), dropout voltage is affected by junction temperature, load current and minimum input supply requirements. output noise voltage ? the rms ac voltage at the output with a constant load and no input ripple, measured over a specified frequency range. maximum power dissipation ? the maximum total dissipation for which the regulator will operate within specifications. quiescent current ? current which is used to operate the regulator chip and is not delivered to the load. line regulation ? the change in output voltage for a change in the input voltage. the measurement is made under conditions of low dissipation or by using pulse techniques such that the average chip temperature is not significantly affected. maximum package power dissipation ? the maximum package power dissipation is the power dissipation level at which the junction temperature reaches its maximum value i.e. 150 c. the junction temperature is rising while the difference between the input power (v cc x i cc ) and the output power (v out x i out ) is increasing. depending on ambient temperature, it is possible to calculate the maximum power dissipation and so the maximum current as following: pd t j ?t a r ja the maximum operating junction temperature t j is specified at 150 c, if t a = 25 c, then p d can be found. by neglecting the quiescent current, the maximum power dissipation can be expressed as: i out p d v cc ?v out the thermal resistance of the whole circuit can be evaluated by deliberately activating the thermal shutdown of the circuit (by increasing the output current or raising the input voltage for example). then you can calculate the power dissipation by subtracting the output power from the input power. all variables are then well known: power dissipation, thermal shutdown temperature (150 c for mc33375) and ambient temperature. r ja t j ?t a p d
mc33375, ncv33375 series http://onsemi.com 5 0 3.5 0 300 output voltage (v) input voltage (v) load current (ma) c l = 1.0 f v out = 3.3 v t a = 25 c v in = 4.3 v figure 2. line transient response figure 3. line transient response figure 4. load transient response figure 5. load transient response figure 6. output voltage versus input voltage output voltage change (mv) 50 100 150 200 250 400 100 -100 -200 -500 -600 -700 -0.8 -0.6 -0.4 -0.2 -1.0 0.4 0 0.2 output voltage change (v) v out change load current -750 load current (ma) c l = 33.0 f v out = 3.3 v t a = 25 c v in = 4.3 v 0 250 300 -0.11 -0.16 -0.01 0.14 output voltage change (v) v out change load current 200 -0.06 0.04 0.09 3.0 2.5 2.0 1.5 1.0 0.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 i l = 1 ma i l = 250 ma 50 100 150 1 300 dropout voltage (mv) i o , output current (ma) 10 100 1000 250 200 150 100 50 0 0 v in , input voltage (v) time ( s) 20 40 60 80 100 120 140 160 180 200 7 6 5 4 3 2 1 0 -100 -50 0 50 100 150 200 output voltage change (mv) v in v out figure 7. dropout voltage versus output current 0 v in , input voltage (v) time ( s) 50 100 150 200 7 6 5 4 3 2 1 0 -20 -10 0 20 40 50 70 10 30 60 t a = 25 c c l = 33 f i l = 10 ma v out = 3.3 v v in v out -400 -300 0 200 300 350 0.6 0.8 1.0 -650 -550 -450 -350 -250 -150 -50 50 150 250 350 time ( s) time ( s) t a = 25 c c l = 0.47 f i l = 10 ma v out = 3.3 v
mc33375, ncv33375 series http://onsemi.com 6 figure 8. dropout voltage versus temperature figure 9. ground pin current versus input voltage figure 10. ground pin current versus ambient temperature figure 11. output voltage versus ambient temperature (v in = v out + 1v) -40 8 0 i t a ( c) v in (volts) 23 8 10 6 4 2 0 7 5 4 3 2 1 0 -20 0 20 40 60 80 100 120 140 i l = 100 ma i l = 250 ma -40 2.5 v temperature ( c) 2.495 2.49 2.485 2.48 2.475 2.47 02585 (ma) gnd 6 i l = 50 ma (volts) out i o = 0 i o = 250 ma -40 300 temperature ( c) 250 200 150 100 50 0 02585 dropout voltage (mv) i l = 10 ma i l = 100 ma i l = 250 ma i l = 300 ma 1 8 12 i (ma) gnd i l = 300 ma i l = 100 ma i l = 50 ma 45 67
mc33375, ncv33375 series http://onsemi.com 7 figure 12. output voltage versus ambient temperature (v in = 12 v) figure 13. ripple rejection figure 14. ripple rejection -40 2.5 v temperature ( c) 2.49 2.485 2.48 2.475 2.47 02585 (volts) out i o = 0 i o = 250 ma 2.495 2.465 0.1 70 db frequency (khz) 60 50 40 30 20 10 0 1 10 100 i l = 100 ma i l = 250 ma 0.1 70 db frequency (khz) 60 50 40 30 20 10 0 1 10 100 i l = 10 ma i l = 1 ma figure 15. enable transient 0 5 voltage (v) c l = 1.0 f 500 100 200 400 4 3 2.5 1 0.5 0 1.5 2 3.5 4.5 300 time ( s) c l = 33 f enable
mc33375, ncv33375 series http://onsemi.com 8 1.8 v option 0.1 80 psrr (db) f, frequency (khz) figure 16. output voltage versus temperature figure 17. output voltage versus input voltage figure 18. ground current versus load current figure 19. quiescent current versus input voltage figure 20. psrr versus frequency 60 50 40 30 20 10 0 110 100 1000 -40 v out , output voltage (v) t a , ambient temperature ( c) -20 0 20 40 60 80 100 120 1.85 1.81 1.80 1.79 1.78 1.77 1.76 1.75 figure 21. enable response 0 v out , output voltage (v) v cc , (v) 1346 2.0 1.8 1.6 0.8 0.6 0.4 0.2 0 t a = 25 c i load = 0 ma 1.84 1.83 1.82 i load = 100 ma 2 5 1.4 1.2 1.0 0 i gnd , (ma) i load , (ma) 50 100 150 200 250 300 350 12 6 4 2 0 0 i q v cc , (v) 1346 140 120 40 20 0 t a = 25 c i load = 0 ma 10 8 2 5 100 80 60 t a = 25 c v cc = 3 v 70 2 v 0 v enable v out v cc = 3 v i load = 1 ma t a = 25 c c out = 1 f ( a) 0 5 10 15 20 25 30 35 40 45 50 t, time ( s)
mc33375, ncv33375 series http://onsemi.com 9 1 ma figure 22. load transient response 1.82 v v cc = 3 v i load = 1 ma to 100 ma t a = 25 c 1.80 v 1.78 v 100 ma 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 t, time (ms) applications information load c out v out v in c in gnd mc33375 ? xx figure 23. typical application circuit on/off the mc33375 regulators are designed with internal current limiting and thermal shutdown making them user ? friendly. figure 15 is a typical application circuit. the output capability of the regulator is in excess of 300 ma, with a typical dropout voltage of less than 260 mv. internal protective features include current and thermal limiting. external capacitors these regulators require only a 0.33 f (or greater) capacitance between the output and ground for stability for 1.8 v, 2.5 v, 3.0 v, and 3.3 v output voltage options. output voltage options of 5.0 v require only 0.22 f for stability. the output capacitor must be mounted as close as possible to the mc33375. if the output capacitor must be mounted further than two centimeters away from the mc33375, then a larger value of output capacitor may be required for stability. a value of 0.68 f or larger is recommended. most type of aluminum, tantalum, or multilayer ceramic will perform adequately. solid tantalums or appropriate multilayer ceramic capacitors are recommended for operation below 25 c. an input bypass capacitor is recommended to improve transient response or if the regulator is connected to the supply input filter with long wire lengths, more than 4 inches. this will reduce the circuit?s sensitivity to the input line impedance at high frequencies. a 0.33 f or larger tantalum, mylar, ceramic, or other capacitor having low internal impedance at high frequencies should be chosen. the bypass capacitor should be mounted with shortest possible lead or track length directly across the regulator?s input terminals. figure 16 shows the esr that allows the ldo to remain stable for various load currents. 0 100 esr (ohm) load current (ma) 100 200 30 0 10 1.0 0.1 figure 24. esr for v out = 3.0v v out = 3.0 v c out = 1.0 f c in = 1.0 f 50 150 250 stable region applications should be tested over all operating conditions to insure stability.
mc33375, ncv33375 series http://onsemi.com 10 thermal protection internal thermal limiting circuitry is provided to protect the integrated circuit in the event that the maximum junction temperature is exceeded. when activated, typically at 150 c, the output is disabled. there is no hysteresis built into the thermal protection. as a result the output will appear to be oscillating during thermal limit. the output will turn off until the temperature drops below the 150 c then the output turns on again. the process will repeat if the junction increases above the threshold. this will continue until the existing conditions allow the junction to operate below the temperature threshold. thermal limit is not a substitute for proper heatsinking. the internal current limit will typically limit current to 450 ma. if during current limit the junction exceeds 150 c, the thermal protection will protect the device also. current limit is not a substitute for proper heatsinking. output noise in many applications it is desirable to reduce the noise present at the output. reducing the regulator bandwidth by increasing the size of the output capacitor will reduce the noise on the mc33375. on/off pin when this pin is pulled low, the mc33375 is off. this pin should not be left floating. the pin should be pulled high for the mc33375 to operate. figure 25. sot ? 223 thermal resistance and maximum power dissipation versus p.c.b. copper length 60 80 100 120 140 160 180 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0102030 25 15 5.0 l, length of copper (mm) p d(max) for t a = 50 c r ja , thermal resistance, junction ? to ? air ( cw) p d , maximum power dissipation (w) minimum size pad r ja l l 2.0 oz. copper ??? ??? ??? ??? figure 26. sop ? 8 thermal resistance and maximum power dissipation versus p.c.b. copper length r , thermal resistance, ja junction\to\air ( c/w) 30 50 70 90 110 170 0.4 0.8 1.2 1.6 3.2 0204050 30 10 l, length of copper (mm) p d(max) for t a = 50 c l l r ja 130 2.0 150 2.4 2.8 ??????? ??????? ??????? graph represents symmetrical layout 2.0 oz. copper 3.0 mm
mc33375, ncv33375 series http://onsemi.com 11 ordering information device type operating temperature range, tolerance package shipping ? mc33375st ? 1.8t3g 1.8 v (fixed voltage) sot ? 223 (pb ? free) 4000 / tape & reel ncv33375st1.8t3g* mc33375d ? 2.5g 2.5 v (fixed voltage) soic ? 8 (pb ? free) 98 units / rail mc33375d ? 2.5r2g soic ? 8 (pb ? free) 2500 / tape & reel ncv33375d ? 2.5r2g* mc33375st ? 2.5t3g sot ? 223 (pb ? free) 4000 / tape & reel mc33375d ? 3.0g 3.0 v (fixed voltage) soic ? 8 (pb ? free) 98 units / rail mc33375d ? 3.0r2g 1% tolerance at t a = 25 c soic ? 8 (pb ? free) 2500 / tape & reel mc33375st ? 3.0t3g 2% tolerance at t j from ? 40 to +125 c sot ? 223 (pb ? free) 4000 / tape & reel mc33375d ? 3.3g 3.3 v (fixed voltage) soic ? 8 (pb ? free) 98 units / rail mc33375d ? 3.3r2g soic ? 8 (pb ? free) 2500 / tape & reel ncv33375d ? 3.3r2g* mc33375st ? 3.3t3g sot ? 223 (pb ? free) 4000 / tape & reel ncv33375st3.3t3g* mc33375d ? 5.0g 5.0 v (fixed voltage) soic ? 8 (pb ? free) 98 units / rail mc33375d ? 5.0r2g soic ? 8 (pb ? free) 2500 / tape & reel mc33375st ? 5.0t3g sot ? 223 (pb ? free) 4000 / tape & reel ?for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specifications brochure, brd8011/d. *ncv prefix for automotive and other applications requiring unique site and control change requirements; aec ? q100 qualified and ppap capable device marking device version marking (1st line) mc33375, ncv33375 1.8 v 37518 mc33375, ncv33375 2.5 v 37525 mc33375 3.0 v 37530 mc33375, ncv33375 3.3 v 37533 mc33375 5.0 v 37550 tape and reel specifications ? device reel size tape width quantity mc33375d, ncv33375d 13 12 mm embossed tape 2500 units mc33375st, ncv33375st 13 8 mm embossed tape 4000 units ?for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specifications brochure, brd8011/d.
mc33375, ncv33375 series http://onsemi.com 12 package dimensions sot ? 223 (to ? 261) case 318e ? 04 issue n 1.5 0.059 mm inches scale 6:1 3.8 0.15 2.0 0.079 6.3 0.248 2.3 0.091 2.3 0.091 2.0 0.079 soldering footprint* *for additional information on our pb ? free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. a1 b1 d e b e e1 4 123 0.08 (0003) a l1 c notes: 1. dimensioning and tolerancing per asme y14.5m, 1994. 2. controlling dimension: inch. h e dim a min nom max min millimeters 1.50 1.63 1.75 0.060 inches a1 0.02 0.06 0.10 0.001 b 0.60 0.75 0.89 0.024 b1 2.90 3.06 3.20 0.115 c 0.24 0.29 0.35 0.009 d 6.30 6.50 6.70 0.249 e 3.30 3.50 3.70 0.130 e 2.20 2.30 2.40 0.087 0.85 0.94 1.05 0.033 0.064 0.068 0.002 0.004 0.030 0.035 0.121 0.126 0.012 0.014 0.256 0.263 0.138 0.145 0.091 0.094 0.037 0.041 nom max l1 1.50 1.75 2.00 0.060 6.70 7.00 7.30 0.264 0.069 0.078 0.276 0.287 h e ? ? e1 0 1 0 0 1 0 l l 0.20 ??? ??? 0.008 ??? ???
mc33375, ncv33375 series http://onsemi.com 13 package dimensions soic ? 8 nb case 751 ? 07 issue ak seating plane 1 4 5 8 n j x 45 k notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. 3. dimension a and b do not include mold protrusion. 4. maximum mold protrusion 0.15 (0.006) per side. 5. dimension d does not include dambar protrusion. allowable dambar protrusion shall be 0.127 (0.005) total in excess of the d dimension at maximum material condition. 6. 751 ? 01 thru 751 ? 06 are obsolete. new standard is 751 ? 07. a b s d h c 0.10 (0.004) dim a min max min max inches 4.80 5.00 0.189 0.197 millimeters b 3.80 4.00 0.150 0.157 c 1.35 1.75 0.053 0.069 d 0.33 0.51 0.013 0.020 g 1.27 bsc 0.050 bsc h 0.10 0.25 0.004 0.010 j 0.19 0.25 0.007 0.010 k 0.40 1.27 0.016 0.050 m 0 8 0 8 n 0.25 0.50 0.010 0.020 s 5.80 6.20 0.228 0.244 ? x ? ? y ? g m y m 0.25 (0.010) ? z ? y m 0.25 (0.010) z s x s m 1.52 0.060 7.0 0.275 0.6 0.024 1.270 0.050 4.0 0.155 mm inches scale 6:1 *for additional information on our pb ? free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. soldering footprint* on semiconductor and are registered trademarks of semiconductor co mponents industries, llc (scillc). scillc owns the rights to a numb er of patents, trademarks, copyrights, trade secrets, and other inte llectual property. a listing of scillc?s product/patent coverage may be accessed at ww w.onsemi.com/site/pdf/patent ? marking.pdf. scillc reserves the right to make changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and s pecifically disclaims any and all liability, including without limitation special, consequential or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/ or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including ?typical s? must be validated for each customer application by customer?s technical experts. scillc does not convey any license under its patent rights nor the right s of others. scillc products are not designed, intended, or a uthorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in whic h the failure of the scillc product could create a situation where personal injury or death may occur. should buyer purchase or us e scillc products for any such unintended or unauthorized appli cation, buyer shall indemnify and hold scillc and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unin tended or unauthorized use, even if such claim alleges that scil lc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyrig ht laws and is not for resale in any manner. publication ordering information n. american technical support : 800 ? 282 ? 9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81 ? 3 ? 5817 ? 1050 mc33375/d literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 303 ? 675 ? 2175 or 800 ? 344 ? 3860 toll free usa/canada fax : 303 ? 675 ? 2176 or 800 ? 344 ? 3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your local sales representative

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