revision 6/14/2012 all contents are subjec t to change without prior notice. ? seaward electronics, inc., 2005. ? www.seawardinc.com ? page 1 seaward electronics se5119 6 00ma super ldo linear regulator description the se5119 is an efficient linear voltage regulator. it has extra low dropout voltage. at light loads the typical dropout voltage is 15mv, at full load the typical dropout voltage is 600mv. the output voltage accuracy is better than 3 %. the se5119 has low ground current at 100 ua, so it can help prolong battery life. the se5119 is specially designed for hand - held, battery - powered devices . features ? typical 175mv dropout voltage at 150ma. ? low ground current at 100 ua. (typ.) ? guaranteed 5 0 0ma output over the full operating temperature range. ? extremely tight load and line regulation. ? low temperature coefficient. ? current and thermal limiting. ? no - load stability. ? standard sot - 89- 3 package. pin configuration 1 2 3 sot-89 top view applications ? active scsi terminators. ? post regulators for switching supplies. ? battery chargers. ? high - efficiency linear power supplies. ? computer motherboard, d isplay , g raphic c ard dc/dc con verter, such as 5v to 3.3v, 3.3v to 2.8v or 3.3v to 2.5v. typical application ordering information se5119 _ _ _ hf/lf pin (1=>3): 1. g: out/gnd/in 2. n: gnd/in/out package type: 1. k: sot - 89- 3l output voltage: 1. a: v out = 3.3v 2. b: v out = 2.8v 3. c: v out = 2.5v 4. d: v out = 1.8v 5. e: v out = 1.5v 6. f: v out = 3.0v 7 . q : v out = 3. 6 v 8 . y : v out = 3. 5 v note lf/hf mean for lead free or halogen free for special o rder
revision 6/14/2012 all contents are subjec t to change without prior notice. ? seaward electronics, inc., 2005. ? www.seawardinc.com ? page 2 seaward electronics se5119 6 00ma super ldo linear regulator absolute maximum ratings (1) supply input voltage (v in ) ..???..??????.+6v pow er dissipation (p d ) ????.. internally limited (3) junction temperature (t j ) ???................?.. 150c lead temperature (soldering, 5 sec.) ??....?. 260c storage temperature (t s ) ????.. - 10c to +150c operating ratings (2) supply input voltage (v in ) ?? ..?? + 3.0 v to +5.5v junction temperature (t j ) ??.??.. 0c to +125c package thermal resistance ?????????????? 180c/w electrical characteristics v in = v out + 1.0v; c in = 2.2f; c out = 2.2f, i out = 10ma; t j = 25c, unless otherwise specified. symbol parameter conditions min typ max units v out output voltage accuracy se5 11 9 -1. 5 v se5 119 -1. 8 v se5 119 -2. 5 v se5 11 9 -2. 8 v se5 119 -3 . 0v se5 119 -3 .3 v se5 119 -3 . 5 v se5 119 -3 . 6 v 1.4 55 1. 7 46 2. 424 2.7 16 2.9 10 3. 201 3.395 3.492 1.5 1.8 2.5 2.8 3.0 3.3 3.5 3.6 1. 545 1.8 54 2.5 75 2.8 84 3.0 9 0 3.3 99 3.605 3.708 v v out /t output voltage temperature coefficient note 4 -- 50 -- ppm/ v out / v out line regulation v in = v out + 1v to 5.5v -- 1 -- % /v v out / v out load regulation (5) i out =10ma to 50 0ma (5) ---- 0.004 ---- % /ma v in - v out dropout voltage (6) i out =10ma -- 15 -- mv i out =150ma -- 175 -- i out =250ma -- 320 -- i out =400ma -- 600 -- t protection thermal protection thermal pr otection temperature -- 150 -- protection hysterisys -- 20 -- psrr ripple rejection f =120hz -- 59 -- db i ground ground current i out =10ma -- 100 -- ua peak i limit current limit -- 600 -- ma
revision 6/14/2012 all contents are subjec t to change without prior notice. ? seaward electronics, inc., 2005. ? www.seawardinc.com ? page 3 seaward electronics se5119 6 00ma super ldo linear regulator note 1: exceeding the absolute maximum rating ma y damage the device. note 2: the device is not guaranteed to function outside its operating rating. note 3: the maximum allowable power dissipation at any ta (ambient temperature) is calculated using: p d(max) = (t j(max) - t a )/ ja . exceeding the maximum al lowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. see table 1 and the ?thermal considerations? section for details. note 4: output voltage temperature coefficient is the worst - case voltage change divided by the total temperature range. note 5: regulation is measured at constant junction temperature using low duty cycle pulse testing. parts are tested for load regulation in the load range from 100a to 5 00ma. changes in output voltage due to heating effects are covered by the thermal regulation specification. note 6: dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1v differential.
revision 6/14/2012 all contents are subjec t to change without prior notice. ? seaward electronics, inc., 2005. ? www.seawardinc.com ? page 4 seaward electronics se5119 6 00ma super ldo linear regulator application hints like any low dropout regulator, se5119 requires external capacitors to ensure stability. the external capacitors must be carefully selected to ensure the performances. inpu t capacitor: an input capacitor of at least 10uf is required. ceramic or tantalum can be used. the value can be increased without upper limit. output capacitor: an output capacitor is required for look stability. it must be located no more than 1cm away f rom the v out pin, and connected directly between v out and gnd pins. the minimum value is 10uf but once again its value can be increased without limit. thermal consideration it is important that the thermal limit of the package should not be exceeded. the se5119 has built - in thermal protection. when the thermal limit is exceeded, the ic will enter protection, and the v out will be reset to zero. the power dissipation for a given application can be calculated as follows: the power dissipation (p d ) is p d = i out * [v in ? v out ] the thermal limit of the package is then limited to p d(max) = [t j ? t a ]/ ja where t j is the junction temperature, t a is ambient temperature, and ja is around 180c/w for se5119. se5119 is designed to enter thermal protection at 150c. for example, if t a is 25c then the max p d is limited to about 0.7w. in other words, if i out(max) = 5 00ma, then [v in ? v out ] can not exceed 1.75v.
revision 6/14/2012 all contents are subjec t to change without prior notice. ? seaward electronics, inc., 2005. ? www.seawardinc.com ? page 5 seaward electronics se5119 6 00ma super ldo linear regulator line transient load transient (10ma ? 500ma) typical performance characte ristics (v in = 5 v, c in = 1f, c out = 10f, t a =25c, unless otherwise noted.) load regulation 1 1.5 2 2.5 3 3.5 0 100 200 300 400 500 600 output current (ma) output voltage 1.5v 1.8v 2.5v 3.3v output voltage vs temperature 1 1.5 2 2.5 3 3.5 0 50 100 150 temperature (c) output voltage (v) 1.5v 1.8v 2.5v 3.3v quiescent current vs temperature (output voltage @ 2.5v) 1.06 1.07 1.08 1.09 1.1 1.11 1.12 1.13 1.14 1.15 1.16 1.17 0 20 40 60 80 100 120 140 temperature (c) quiescent current (ma) dropout voltage vs output current 0 0.1 0.2 0.3 0.4 0.5 0.6 0 100 200 300 400 500 600 output current (ma) dropout voltage (v) 1.5v 1.8v 2.5v 3.3v
revision 6/14/2012 all contents are subjec t to change without prior notice. ? seaward electronics, inc., 2005. ? www.seawardinc.com ? page 6 seaward electronics se5119 6 00ma super ldo linear regulator contact information seaward electronics incorporated ? china rm 1605, building 1, international pioneering park, #1 shangdi xinxi rd haidian district, beijing 10008 5, china tel: 86 - 10- 8289 - 5700/01/05 fax: 86 - 10- 8289 - 5706 email: sales@seawardinc.com.cn seaward electronics corporation ? taiwan 2f, #181, sec. 3, minquan east rd, taipei, taiwan r.o.c tel: 886 - 2 - 2712 - 0307 fax: 886 - 2 - 2712 - 0191 email: sales@seawardinc.com. tw seaward electronics incorporated ? north america 49 showers dr. j126 mountain view, ca 94040, usa tel: 1 - 408- 821 - 6600 last updated - 6/14/2012 outline drawing for sot - 89 a b c d e f g h i j k l m sot-89 min max min max a 0.173 0.181 4.400 4.600 b 0.159 0.167 4.050 4.250 c 0.067 0.075 1.700 1.900 d 0.051 0.059 1.300 1.500 e 0.094 0.102 2.400 2.600 f 0.035 0.047 0.890 1.200 g h i 0.016 0.020 0.400 0.520 j 0.055 0.063 1.400 1.600 k 0.014 0.016 0.350 0.410 l m 3.00ref 1.50ref 0.118ref 0.059ref 0.70ref 10typ 0.028ref 10typ dim n inches mm dimensions
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