1 date:12/18/04 spx5205 150ma, low noise ldo voltage regulator ? copyright 2004 sipe x corporation 150ma, low-noise ldo voltage regulator spx5205 description features low noise output ldo: 40 v rms possible 1% initial accuracy very low quiecent current: 70 a low dropout voltage (210mv at 150ma) current and thermal limiting reverse-battery protection wide range of fix output voltages:1.2v, 1.5v, 1.8v, 2.0v, 2.5v, 2.8v, 3.0v, 3.3v and 5.0v zero off-mode current small 5-pin sot-23 pin compatible to mic5205/max8877 (fixed options only) and as3815 ? the spx5205 is a positive voltage regulator with very low dropout voltage, output noise and ground current (750 a at 100ma). v out has a tolerance of less than 1% and is temperature compensated. fixed output voltages 1.2v, 1.5v, 1.8v, 2.0v, 2.5v, 2.8v, 3.0v, 3.3v, and 5.0v and an adjustable version are available in a small 5-pin sot-23 package. other key features include zero off-mode current, reverse battery protection, thermal shutdown and current limit. the spx5205 is an excellent choice for use in battery- powered applications, and where powe r conservation is desired such as: cellular/ cordless telephones, radio control systems, and portable computers. applications pda battery powered systems cellular phone cordless telephones radio control systems laptop, palmtop, and notebook computers + + gnd en byp (optn) enable may be tied directly to v in spx5205 1 2 3 4 5 v in v out t op view 1.0 f typical application circuit 54 123 spx5205 5 pin sot-23 v in byp gnd en v out 54 123 spx5205 5 pin sot-23 v in adj/byp gnd en v out fixed output voltage adjustable output voltage now available in lead free packaging portable consumer equipment portable instrumentation bar code scanners smps post-regulator
2 date:12/18/04 spx5205 150ma, low noise ldo voltage regulator ? copyright 2004 sipex corporation thermal shutdown .................................................................... internally limited lead temperature (soldering, 5 seconds) ................................................. 260 c operating junction temperature range .................................... -40 c to +125 c electrical characteristics t j =25 c, v in = v out + 1v, i l = 100 a, c l = 1 f, and v enable 2.4v. the ? denotes the specifications which apply over full temperature range -40 c to +85 c, unless otherwise specified. parameter min typ max units conditions output voltage tolerance (v out )-1 +1%v nom -2 +2 ? output voltage temperature coefficient 57 ppm/ c ? line regulation 0.03 0.1 %/v v in = v out + 1v to 16v 0.2 ? load regulation 0.1 0.2 % i l = 0.1ma to 150ma 0.5 ? dropout voltage (see note 2) 30 50 mv i l = 100 a (v in - v o )70 ? 140 190 mv i l = 50ma 230 ? 180 250 mv i l = 100ma 300 ? 210 275 mv i l = 150ma 350 ? quiescent current (i gnd ) 0.05 1 av enable 0.4v 5 ? v enable 0.25v ground pin current 70 125 ai l = 100 a (i gnd ) 150 ? 350 600 i l = 50ma 800 ? 750 1000 i l = 100ma 1500 ? 1300 1900 i l = 150ma 2500 ? ripple rejection (psrr) 70 db current limit (i limit ) 360 500 ma v out = 0v output noise (e no ) 300 v rms i l = 10ma, c l = 1 f, c in = 1 f (10hz - 100khz.) 40 v rms i l = 10ma, c l = 10 f, c byp = 1 f,c in =1 f,(10hz - 100khz) input voltage level 0.4 v off logic low (v il ) i nput voltage level 2.0 on logic high (v il ) enable input current 0.01 2 av il 0.4v 320 v ih 2.0v absolute maximum ratings input supply voltage ......................................... -20v to +20v enable input voltage ......................................... -20v to +20v input voltage ..................................................................................... +2.5v to 16v operating junction temperature range .................................... -40 c to +125 c enable input voltage .............................................................................. 0v to v in sot-23-5 ( ja ) ................................................................................... see note 1 recommended operating conditions note 1: the maximum allowable power dissipation is a function of maximum operating junction temperature, t j (max) , the junction to ambient thermal resistance, and the ambient, j a , and the ambient temperature t a . the maximum allowable power dissipation at any ambient temperature is given: p d (max) = (t j (max) - t a )/ j a , exceeding the maximum allowable power limit will result in excessive die temperature; thus, the regulator will go into thermal shutdown. the j a of the spx5205 is 220 c/w mounted on a pc board. note 2: not applicable to output voltages of less than 2v.
3 date:12/18/04 spx5205 150ma, low noise ldo voltage regulator ? copyright 2004 sipe x corporation typical performance characteristics ground current vs load current ground current vs input voltage 1.40 1.20 1.00 0.80 0.60 0.40 0.20 0.00 050 100 150 i l (ma) i gnd (ma) 3.3v device v in = 3.2v c l = 1.0 f 110 100 90 80 70 60 50 40 30 46810121416 v in (v) i gnd ( a) v o = 3.3v c l = 1.0 f i l = 100 a ground current vs load current in dropout output voltage vs input voltage 2.00 1.50 1.00 0.50 0.00 050 100 150 i l (ma) i gnd (ma) 3.3v device v in = 4.3v c l = 1.0 f 3.340 3.335 3.330 3.325 3.320 3.315 3.310 3.305 3.300 3.295 3.290 46 8101 214 16 v in (v) v out (v) 3.3v device c l = 1.0 f i l = 100 a
4 date:12/18/04 spx5205 150ma, low noise ldo voltage regulator ? copyright 2004 sipex corporation dropout voltage vs load current output voltage vs load current ground current vs temperature at i load =100 a ground current vs temperature at i load =100ma 200 150 100 50 0 050 100 150 i l (ma) dropout (mv) v o =3.3v v in = 3.2v c l = 1.0 f 3.310 3.308 3.306 3.304 3.302 3.300 050 100 150 i l (ma) v out (v) 3.3v device v in = 4.3v c l = 1.0 f 90.0 80.0 70.0 60.0 50.0 -40 -20 0 20 40 60 80 100 120 t emperature ( c) i gnd ( a) v out = 3.3v v in = 4.3v c l = 1.0 f i l = 100 a 950 850 750 650 550 450 -40 -20 0 20 40 60 80 100 120 t emperature ( c) i gnd ( a) v out = 3.3v v in = 4.3v c l = 1.0 f i l = 100ma typical performance characteristics
5 date:12/ 18/04 spx5205 150ma, low noise ldo voltage regulator ? copyright 2004 sipe x corporation ground current in dropout vs temperature output voltage vs temperature enable voltage, on threshold vs input voltage output noise vs. bypass capacitor value 2.30 2.20 2.10 2.00 1.90 1.80 1.70 1.60 1.50 1.40 -40 -20 0 20 40 60 80 100 120 t emperature ( c) i gnd (ma) v out = 3.3v v in = 4.3v c l = 1.0 f i l = 150ma 1.60 1.50 1.40 1.30 1.20 1.10 1.00 0.90 0.80 46810121416 v in (v) v en, on threshold (v) v out =3.3v c l = 1.0 a i l = 100 a 3.400 3.380 3.360 3.340 3.320 3.300 3.280 3.260 3.240 3.220 3.200 -40 -20 0 20 40 60 80 100 120 t emperature ( c) v out (v) v out = 3.3v v in = 4.3v c l = 1.0 f typical performance characteristics 0 50 100 150 200 250 300 350 11 0 100 1000 10000 100000 1000000 bypass cap (pf) uv rms cin = 1uft, cout = 1uft cin = 1uft, cout = 2.2uft cin = 1uft cout = 10uft
6 date:12/18/04 spx5205 150ma, low noise ldo voltage regulator ? copyright 2004 sipex corporation + + gnd en byp (optn) hi-on lo-off spx5205 1 2 3 4 5 v in v out r1 r2 adj t op view figure 1. typical adjustable output voltage. application information the spx5205 requires an output capacitor for device stability. its value depends upon the application circuit. in general, linear regulator stability decreases with higher output currents. in applications where the spx5205 is putting out less current, a lower output capacitance may be sufficient. for example, a regulator sourcing only 10ma, requires approximately half the capacitance as the same regulator sourcing 150ma. bench testing is the best method for determining the proper type and value of the capacitor since the high frequency characteristics of electro- lytic capacitors vary widely, depending on type and manufacturer. a high quality 2.2 f alumi- num electrolytic capacitor works in most appli- cation circuits, but the same stability often can be obtained with a 1 f tantalum electrolytic. with the spx5205 adjustable version, the mini- mum value of output capacitance is a function of the output voltage. the value decreases with higher output voltages, since closed loop gain is increased. typical applications circuits a 10nf capacitor on byp pin will significantly reduce output noise but it may be left uncon- nected if the output noise is not a major concern. the spx5205 start-up speed is inversely pro- portional to the size of the byp capacitor. ap- plications requiring a slow ramp-up of the out- put voltage should use a larger c byp . however, if a rapid turn-on is necessary, the byp capaci- tor can be omitted. the spx5205? internal reference is available through the byp pin. the typical application circuit shown on page 1 represents a spx5205 standard application circuit. the en (enable) pin is pulled high (>2.0v) to enable the regulator. to disable the regulator, en < 0.4v. the spx5205 in figure 1 illustrates a typical adjustable output voltage configuration. two resistors (r1 and r2) set the output voltage. the output voltage is calculated using the formula: v out = 1.235v x ( 1 + r1/r2) r2 must be > 10 k ? and for best results, r2 should be between 22 k ? and 47k ? . a capacitor placed between adjustable and ground will pro- vide improved noise performance.
7 date:12/18/04 spx5205 150ma, low noise ldo voltage regulator ? copyright 2004 sipe x corporation package: 5 pin sot-23 d e e/2 e1 n/2 2 1 b e e1 e1/2 n n/2 +1 l1 l l ? seating plane gauge plane view c see view c b b c with plating base metal b ? ? section b-b seating plane view a-a side view symbol min nom max a--1.45 a1 0 - 0.15 a2 0.9 1.15 1.3 b0.3 -0.5 c0.08- 0.22 d e e1 e e1 l0.30. 45 0.6 l1 l2 ?0o4 o8o ?5o 10o 15o note: dimensions in (mm) 5 pin sot-23 jedec mo-178 (aa) variation 2.80 bsc 1.60 bsc 2.90 bsc 0.95 bsc 1.90 bsc 0.60 ref 0.25 bsc a a2 a1
8 date:12/18/04 spx5205 150ma, low noise ldo voltage regulator ? copyright 2004 sipex corporation ordering information part number top mark acc. output voltage package spx5205m5 .............. h1ww ................. 1% ...................... adj ................... 5 pin sot-23 spx5205m5/tr ........ h1ww ................. 1% ...................... adj ................... 5 pin sot-23 spx5205m5-1.2 .......... r12 ................... 1% ..................... 1.2v .................. 5 pin sot-23 spx5205m5-1.2/tr ..... r12 ................... 1% ..................... 1.2v .................. 5 pin sot-23 spx5205m5-1.5 .......... r15 ................... 1% ..................... 1.5v .................. 5 pin sot-23 spx5205m5-1.5/tr ..... r15 ................... 1% ..................... 1.5v .................. 5 pin sot-23 spx5205m5-1.8 .......... r18 ................... 1% ..................... 1.8v .................. 5 pin sot-23 spx5205m5-1.8/tr ..... r18 ................... 1% ..................... 1.8v .................. 5 pin sot-23 spx5205m5-2.0 .......... r20 ................... 1% ..................... 2.0v .................. 5 pin sot-23 spx5205m5-2.0/tr ..... r20 ................... 1% ..................... 2.0v .................. 5 pin sot-23 spx5205m5-2.5 .......... r25 ................... 1% ..................... 2.5v .................. 5 pin sot-23 spx5205m5-2.5/tr ..... r25 ................... 1% ..................... 2.5v .................. 5 pin sot-23 spx5205m5-2.8 .......... r28 ................... 1%......................2.8v...................5 pin sot-23 spx5205m5-2.8/tr ..... r28 ................... 1%......................2.8v...................5 pin sot-23 spx5205m5-3.0............r30.....................1% .....................3.0v...................5 pin sot-23 spx5205m5-3.0/tr......r30.....................1% .....................3.0v...................5 pin sot-23 spx5205m5-3.3 .......... r33 ................... 1% ..................... 3.3v .................. 5 pin sot-23 spx5205m5-3.3/tr ..... r33 ................... 1% ..................... 3.3v .................. 5 pin sot-23 spx5205m5-5.0 .......... r50 ................... 1% ..................... 5.0v .................. 5 pin sot-23 spx5205m5-5.0/tr ..... r50 ................... 1% ..................... 5.0v .................. 5 pin sot-23 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 and sales office 233 south hillview drive milpitas, ca 95035 tel: (408) 934-7500 fax: (408) 935-7600 available in lead free packaging. to order add ?-l? suffix to part number. example: spx5205m5-5.0/tr = standard; spx5205m5-5.0-l/tr = lead free note that for top markings on small packages, when the bar is added to indicate lead-free parts, it can be mistaken as a ?1? or an ?i?. /tr = tape and reel pack quantity is 2,500 for 5pin sot-23
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