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1 date: 5/25/04 spx29300/01/02/03 3a low dropout voltage regulator ?copyright 2004 sipex corporation 3a high current, low dropout voltage regulator adjustable & fixed output, fast response time spx29300/01/02/03 features adjustable output down to 1.25v 1% output accuracy output current of 3a low dropout voltage of 450mv @ 3a extremely tight load and line regulation extremely fast transient response reverse-battery protection zero current shutdown (5 pin version) error flag signal output for out of regulation state (5 pin version) standard to-220 and to-263 packages the spx29300/01/02/03 are 3a, highly accurate voltage regulators with a low drop out voltage of 450mv dropout (typical) @ 3a. these regulators are specifically designed for low voltage applications that require a low dropout voltage and a fast transient response. they are fully fault protected against over-current, reverse battery, and positive and negative voltage transients. on-chip trimming adjusts the reference voltage to 1% initial accuracy. other features in the 5 pin versions include enable, and error flag. the spx29300/01/02/03 are offered in 3 & 5-pin to-220 & to-263 packages. for a 1.5a version, refer to the spx29150 data sheet. applications powering vga & sound card power pc supplies smps post regulator high efficiency ?reen?computer systems high efficiency linear power supplies constant current regulators adjustable power supplies battery charger figure 1. fixed output linear regulator figure 2. adjustable output linear regulator spx29302 v out v in gnd adj 1 2 3 4 5 r1 r2 6.8 f ++ 10 f spx29300 v out v in 6.8 f + + 10 f 1 2 3 description now available in lead free packaging 123 spx29300 3 pin to-263 gnd v in v out typical applications circuits
date: 5/25/04 spx29300/01/02/03 3a low dropout voltage regulator ?copyright 2004 sipex corporation 2 absolute maximum ratings lead temperature (soldering, 5 seconds) ................260 c storage temperature range........................-65 c to +150 c operating junction temperature range......-40 c to +125 c input voltage (note 1) .................................................... 16v (note 1) at v in =v out + 1v and i out = 10ma, c in = 6.8 f, c out = 10 f, t a = 25 c, unless otherwise specified. the boldface applies over the junction temperature range. spx29300/01 parameter conditions typ min max units fixed voltage options 1.8v version output voltage i out = 10ma 1.800 1.782 1.818 v 10ma i out 3a, 2.8v v in 16v 1.800 1.764 1.836 2.5v version output voltage i out = 10ma 2.500 2.475 2.525 v 10ma i out 3a, 3.5v v in 16v 2.500 2.450 2.550 3.3v version output voltage i out = 10ma 3.300 3.267 3.333 v 10ma i out 3a, 4.3v v in 16v 3.300 3.234 3.366 5.0v version output voltage i out = 10ma 5.000 4.950 5.050 v 10ma i out 3a, 6.0v v in 16v 5.000 4.900 5.100 all voltage options spx29300/01/02/03 line regulation i out =10ma,(v out +1v) v in 16v 0.06 0.5 % load regulation v in =v out +1v, 10ma i out i fl (note 2) 0.2 1 % ? v/ ? tv out temp coefficient (note 6) 20 100 ppm/ c dropout voltage, except i out =100ma 50 175 mv 1.8v, (note 3) i out =1.5a 150 i out =3.0a 450 700 ground current i out =1.5a 10 35 ma (note 5) i out =3.0a 37 ground pin current v in =0.5v less than specified v out, 0.9 ma at dropout i out =10ma current limit v out =0v (note 4) 4.5 3.0 a output noise voltage c l =10 f 400 v rms (10hz to 100khz) i l =100ma c l =33 f 260 reference voltage adjustable version only 1.240 1.228 1.252 v 1.215 1.265 reference voltage adjustable version only (note 8) 1.203 1.277 v adjust pin bias current 40 80 na 120 reference voltage (note 7) 20 ppm/ c temp. coeff. adjust pin bias 0.1 na/ c current temp. coeff. electrical characteristics
3 date: 5/25/04 spx29300/01/02/03 3a low dropout voltage regulator ?copyright 2004 sipex corporation at v in =v out + 1v and i out = 10ma, c in = 6.8 f, c out = 10 f, t a = 25 c, unless otherwise specified. the boldface applies over the junction temperature range. adjustable versions are set to 5.0v. parameter conditions typ min max units flag output (error comparator) spx29301/03 output leakage v oh =16v 0.01 1 a current 2 output low voltage device set for 5v,v in =4.5v, i ol =250 a 220 300 mv 400 upper threshold device set for 5v, (note 9) 60 40 mv voltage 25 lower threshold device set for 5v, (note 9) 75 95 mv voltage 140 hysteresis device set for 5v, (note 9) 15 mv enable input spx29301/02 input logic voltage low (off) v in <10v 0.8 v high (on) 2.4 enable input pin v en =16v 100 600 a 750 v en =0.8v 1 a 2 regulator output (note 10) 10 500 a current in shutdown thermal resistance to-200 junction to case, at tab 3 c/w to-220 junction to ambient 60 to-263 junction to case, at tab 3 to-263 junction to ambient 60 notes: note 1: maximum positive supply voltage of 20v must be of limited duration (<100ms) and duty cycle of less than 1%. the maximum continuous supply voltage is 16v. note 2: full load current (i fl ) is defined as 3.0a. note 3: dropout voltage is defined as the input to output differential when the output voltage drops to 99% of its nominal valu e. note 4: v in = v out (nominal) +1v. for example, use v in = 4.3v for a 3.3v regulator. employ pulse-testing procedures to minimize temperature rise. note 5: ground pin current is the regulator quiescent current. the total current drawn from the source is the sum of the load current to the ground current. note 6: output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature ran ge note 7: thermal regulation is defined as the change in output voltage at time t after a change in power dissipation is applied, excluding load / line regulation effects. specifications for a 200ma load pulse as v in = 20v (a 4w pulse) for t = 10ms. note 8: v ref v out (v in -1), 2.3v v in 16v, 10ma i l i fl , t j < t jmax . note 9: comparator threshold is expressed in terms of a voltage differential at the adjust terminal below the nominal reference voltage measured 6v input. to express these thresholds in terms of output voltage change, multiply the error amplifier gain = v out /v ref = (r1 + r2)/r2. for example, at a programmable output voltage of 5v, the error output is guaranteed to go low when the output drops by 95mvx 5v/ 1.240v = 38mv. threshold rem ain constant as a percent of v out as v out is varied, with the dropout warning occurring at typically 5% below nominal, 7.7% guaranteed. note 10: v en 0.8v and v in 16v, v out = 0. reference thermal shutdown en in out adj gnd o.v i limit 28v r1* r2* 1.180v 1.240v + + -- flag block diagram electrical characteristics
date: 5/25/04 spx29300/01/02/03 3a low dropout voltage regulator ?copyright 2004 sipex corporation 4 typical performance characteristics figure 3. dropout voltage vs load current figure 4. line regulation figure 5. ground current vs load current figure 6. load regulation figure 7. enable threshold vs temperature 0 200 400 600 800 1000 01.02. 03.0 il (a) 3.3v device cl = 10 f vdropout (mv) 1200 vin = 3.2v 85 c 25 c 2.460 2.470 2.480 2.490 2.500 2.510 2.520 2.530 2.540 46810 12 14 16 v in (v) 2.5v device il = 10ma cl = 10 f v out (v) 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 01.02. 03.0 il (a) 3.3v device vin = 4.3v cl = 10 f ignd (ma) 85 c 25 c 3.280 3.285 3.290 3.295 3.300 3.305 3.310 0 1.0 2.0 3.0 il (a) v in = 4.3v cl = 10 f 3.3v device v out (v ) 1.2 1.3 -40 -20 0 20 40 60 80 100 120 t emperature ( o c) 3.3v device vth (v) 1.4 1.5 1.6 1.7 1.8 1.9
5 date: 5/25/04 spx29300/01/02/03 3a low dropout voltage regulator ?copyright 2004 sipex corporation the spx29300/01/02/03 incorporates protec- tion against over-current faults, reversed load insertion, over temperature operation, and positive and negative transient voltage. thermal considerations although the spx29300/01/02/03 offers limiting circuitry for overload conditions, it is still necessary to insure that the maximum junction temperature is not exceeded in the application. heat will flow through the lowest resistance path, the junction-to-case path. in order to insure the best thermal flow of the component, proper mounting is required. to-220 design example: assume that v in = 10v, v out = 5v, i out = 1.5a, t a = 50 c, ha = 1 c/w, ch = 2 c/w, and jc = 3c /w, where: t a = ambient temperature, ha = heatsink to ambient thermal resistance ch = case to heatsink thermal resistance jc = junction to case thermal resistance the power calculated under these conditions is: p d = (v in ?v out ) * i out = 7.5w. and the junction temperature is calculated as t j = t a + p d * ( ha + ch + jc ) or t j = 50 + 7.5 * (1+2+3) = 95 c reliable operation is insured. capacitor requirements the output capacitor is needed to insure stability and minimize the output noise. the value of the capacitor varies with the load. however, a minimum value of 10 f alumi- num capacitor will guarantee stability over all load conditions. a tantalum capacitor is recommended if a faster load transient response is needed. if the power source has a high ac impedance, a 0.1 f ceramic capaci- tor between input & ground is recommended. minimum load current to ensure a proper behavior of the regulator under light load, a minimum load of 5ma for spx29300/01/02/03 is required. adjustable regulator design the spx29302/03 are adjustable regulators that can be programmed to any value between 1.25v and 16v using 2 resistors, r1 and r2. the relationship between the resistors is: r1 = r2(vout/1.240-1). error flag the spx29301/03 features an error flag that indicates either an over current or under voltage condition. the flag output goes low, sinking 10ma when either condition occurs. enable input the spx29301/02 have an enable function that switches the regulator on and off. their thresholds are ttl compatible. when the regulator is active, approximately 20 ua flows through the enable pin. typical application circuits figure 1 represents at typical fixed output regulator. figure 2 represents an adjustable output regulator. the values of r1 and r2 set the output voltage value as follows: v out =v ref * [1 + (r1/r2)]. for best results, the total series resistance should be small enough to pass a minimum regulator load current of 5 ma. a minimum value of 10kohms is recommended for r2 with a range between 10kohms and 47 kohms. application information
date: 5/25/04 spx29300/01/02/03 3a low dropout voltage regulator ?copyright 2004 sipex corporation 6 package: 3 pin to-220 h1 b seating plane a1 a chamfer optional c a2 a a e ? q d d1 e2 e/2 l l1 c c d d b c with plating base metal b contact area 1 e e1 .140 - .190 .020 - .055 dimensions in (mm) 3 pin to-220 jedec to-220 (ab) variation .080 - .115 .015 .027 .040 .045 - .070 .480 - .507 a a1 a2 b b2 d1 d2 .380 - .420 e min nom max c .014 - .024 d .560 - .650 .330 - .355 e1 .270 - .350 e2 - - .030 e .100 bsc e1 .200 bsc h1 .230 - .270 l1 - - .250 l2 - - - ? p .139 - .161 q .100 - .135 3 pin to-220
7 date: 5/25/04 spx29300/01/02/03 3a low dropout voltage regulator ?copyright 2004 sipex corporation package: 5 pin to-220 .160 - .190 dimensions in (inches) 5 pin to-220 .015 - .040 a b c1 d e min nom max e e1 f h1 j1 ? p q u v l .014 - .022 .560 - .590 .385 - .415 .385 - .415 .062 - .072 .045 - .055 .234 - .258 .090 - .115 .540 - .560 .146 - .156 .103 - .113 - .30 - - .24 - l1 - .250 d b seating plane f a chamfer optional c1 j1 a a e ? q d d1 e/2 l l1 c c d d b e1 h1 e 5 pin to-220
date: 5/25/04 spx29300/01/02/03 3a low dropout voltage regulator ?copyright 2004 sipex corporation 8 package: 3 pin to-263 e d l1 b2 e b .160 - .190 .000 - .010 dimensions in inches 3-pin to-263 jedec to-263 (aa) variation .020 - .039 .015 - .029 .070 - .110 - - - a a1 b c d e e1 l l1 l2 min nom max e .100 bsc .066 - .330 - .380 d1 .270 - - .380 - .420 .245 - - h .575 - .625 .070 l3 .010 bsc 123 c c2 a h seating plane l 0?8 see view c e/2 v iew c gauge plane a1 seating plane c with plating base metal b section b-b b b 3 pin to-263
9 date: 5/25/04 spx29300/01/02/03 3a low dropout voltage regulator ?copyright 2004 sipex corporation package: 5 pin to-263 .160 - .190 0 - .010 dimensions in (mm) 5 pin to-263 jedec to-263 (bb) variation .020 - .039 .015 - .029 .070 - .110 - - - a a1 b c e e1 l l1 l2 min nom max e. 067 bsc .066 - d1 .270 - - .380 - .420 .245 - - h .575 - .625 .070 l3 .010 bsc c with plating base metal (b) contact area 1 23 4 5 e e l2 5x b e 4x (datum a) c2 .045 - .023 c c2 a h seating plane d1 l1 (e) e1 l 0?8 l3 5 pin to-263
date: 5/25/04 spx29300/01/02/03 3a low dropout voltage regulator ?copyright 2004 sipex corporation 10 part number accuracy output voltage package spx29300u-1.8 1.0% 1.8v 3 lead to-220 spx29300u-2.5 1.0% 2.5v 3 lead to-220 spx29300u-3.3 1.0% 3.3v 3 lead to-220 spx29300u-5.0 1.0% 5.0v 3 lead to-220 spx29300t-1.8 1.0% 1.8v 3 lead to-263 spx29300t-1.8/tr 1.0% 1.8v 3 lead to-263 spx29300t-2.5 1.0% 2.5v 3 lead to-263 spx29300t-2.5/tr 1.0% 2.5v 3 lead to-263 spx29300t-3.3 1.0% 3.3v 3 lead to-263 spx29300t-3.3/tr 1.0% 3.3v 3 lead to-263 spx29300t-5.0 1.0% 5.0v 3 lead to-263 spx29300t-5.0/tr 1.0% 5.0v 3 lead to-263 package pinouts t o-263-3 package (t) v out gnd v in front view 123 output t o-263-5 package (t5) t op view 45 3 2 1 gnd flag 1) 3) 4) 5) 2) input enable gnd adjust 1) 3) 4) 5) 2) input enable gnd adjust 1) 3) 4) 5) 2) input flag output output spx29301 spx29302 spx29303 front view t o-220-3 package (u) v in v out gnd t o-220-5 package (u5) t op view 12345 output gnd flag 1) 3) 4) 5) 2) input enable output gnd adjust 1) 3) 4) 5) 2) input enable output gnd adjust 1) 3) 4) 5) 2) input flag spx29301 spx29302 spx29303 3 2 1 *tab is internally connected to gnd ordering information available in lead free packaging. to order add "-l" suffix to part number. example: spx29300t-5.0/tr = standard; spx29300t-5.0-l/tr = lead free /tr = tape and reel pack quantity is 500 for to-263. sipex corporation headquarters 233 south hillview drive milpitas, ca 95035 tel: (408) 934-7500 fax: (408) 935-7600m
11 date: 5/25/04 spx29300/01/02/03 3a low dropout voltage regulator ?copyright 2004 sipex corporation corporation analog excellence sipex corporation reserves the right to make changes to any products described herein. sipex does not assume any liability aris ing out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor t he rights of others. sipex corporation headquarters 233 south hillview drive milpitas, ca 95035 tel: (408) 934-7500 fax: (408) 935-7600m part number accuracy output voltage package spx29301u5-1.8 1.0% 1.8v 5 lead to-220 spx29301u5-2.5 1.0% 2.5v 5 lead to-220 spx29301u5-3.3 1.0% 3.3v 5 lead to-220 spx29301u5-5.0 1.0% 5.0v 5 lead to-220 spx29301t5-1.8 1.0% 1.8v 5 lead to-263 spx29301t5-1.8/tr 1.0% 1.8v 5 lead to-263 spx29301t5-2.5 1.0% 2.5v 5 lead to-263 spx29301t5-2.5/tr 1.0% 2.5v 5 lead to-263 spx29301t5-3.3 1.0% 3.3v 5 lead to-263 spx29301t5-3.3/tr 1.0% 3.3v 5 lead to-263 spx29301t5-5.0 1.0% 5.0v 5 lead to-263 spx29301t5-5.0/tr 1.0% 5.0v 5 lead to-263 spx29302t5 1.0% adj 5 lead to-263 spx29302t5/tr 1.0% adj 5 lead to-263 spx29302u5 1.0% adj 5 lead to-220 spx29303t5 1.0% adj 5 lead to-263 spx29303t5/tr 1.0% adj 5 lead to-263 spx29303u5 1.0% adj 5 lead to-220 ordering information available in lead free packaging. to order add "-l" suffix to part number. example: spx29302t5/tr = standard; spx29302t5-l/tr = lead free /tr = tape and reel pack quantity is 500 for to-263.

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