elektronische bauelemente s3u1085lm series 3a low dropout positive adjustable or fixed-mode regulator 06-jun-2013 rev. b page 1 of 5 http://www.secosgmbh.com/ any changes of specification will not be informed individually. gs1085lm ????????? adj ( gnd ) v out v in date code vout 1.5v: 15 3.3v: 33 1.8v: 18 5.0v:50 2.5v: 25 adj:block rohs compliant product a suffix of ?-c? specifies halogen free description the sj1085 is a low drop voltage regulator able to provide up to 3a output current. the dropout voltage of the device is guaranteed at a maximum 1.3v at the maximum output current, decreasing at lower loads. the sj1085 is pin compatible with older 3-terminal adjustable regulators, but has better performances in term of drop and output tolerance. features ? guaranteed output current up to 3a ? typical dropout 1.3v (at 3a) ? output tolerance: 2% at 25 oc ? wind operating temperature range: -40 oc ~ 125 oc applications ? post regulators for switching supply ? battery-powered circuitry ? low voltage logic supplies ? high efficiency linear regulators ? adjustable power supply marking package information package mpq leader size to-263 0.8k 13? inch typical circuit to-263 ? ? ? ? ? ? millimete r millimete r ref. min. max. ref. min. max. a 4.00 4.85 c2 1.10 1.65 b 0.51 1.00 b2 1.34 ref l4 0.00 0.30 d 8.0 9.65 c 0.36 0.74 e 2.54 ref l3 1.50 ref l ? 14.6 15.88 l1 1.78 2.79 l2 1.27 ref e 9.60 10.67
elektronische bauelemente s3u1085lm series 3a low dropout positive adjustable or fixed-mode regulator 06-jun-2013 rev. b page 2 of 5 http://www.secosgmbh.com/ any changes of specification will not be informed individually. block diagram pin descriptions name i/o pin# description adj (gnd) 1 a resistor divider from this pin to the v out pin and ground sets the output voltage (ground only for fixed mode) v out o 2 the output pin of regulator. a min. of 10 f capacitor must be connected from this pin to ground to insure stability. v in i 3 the input pin of regulator. typically a large storage capacitor is connected from this pin to ground to insure that the input voltage does not sag below the min. dropout voltage during the load transient response. this pin must always be 1.3v higher than v out in order for the device to regulate properly. absolute maximum ratings parameter symbol ratings unit dc supply voltage vin 15 v thermal resistance (junction to case) r jc 3 c / w thermal resistance (junction to ambient) r ja 62.5 c / w power dissipation (t a = 25c) p d 2 w operating, storage te mperature range t opr , t stg -40~125, -65~150 c lead temperature(soldering 10sec) t lead 300 c note: 1. stress above the listed absolute maximum rati ng may cause permanent damage to the device
elektronische bauelemente s3u1085lm series 3a low dropout positive adjustable or fixed-mode regulator 06-jun-2013 rev. b page 3 of 5 http://www.secosgmbh.com/ any changes of specification will not be informed individually. electrical characteristics (i out =0, t j =25c, unless otherwise noted) parameter test conditions min. typ. max unit v in =2.75v, i o =10ma 1.238 1.25 1.263 reference voltage 1 s3u1085lm-adj v in =2.7v~7v, i o =10ma~3a 1.225 1.25 1.275 v v in =4v 1.485 1.5 1.515 s3u1085lm -1.5 v in =3v, 0 Q i o Q 3a 1.47 1.5 1.53 v v in =4.3v 1.782 1.8 1.818 s3u1085lm -1.8 v in =3.3v, 0 Q i o Q 3a 1.764 1.8 1.836 v v in =5v 2.475 2.5 2.525 s3u1085lm -2.5 v in =4v, 0 Q i o Q 3a 2.45 2.5 2.55 v v in =5.8v 3.267 3.3 3.333 s3u1085lm -3.3 v in =4.8v, 0 Q i o Q 3a 3.234 3.3 3.366 v v in =7.5v 4.95 5 5.05 output voltage s3u1085lm -5.0 v in =6.5v, 0 Q i o Q 3a 4.9 5 5.1 v line regulation 1 all i o =10ma, (vout+1.5v) Q v in Q 7v - 0.04 0.2 % load regulation 1 all v in =vo+2.5v, 0 Q i o Q 3a - 0.08 0.4 % dropout voltage (v in -v out ) 1.3 all v out , v ref =1%, i out =3a - 1.1 1.3 v current limit 1 all 3 4 - a quiescent current all v in =5v - 5 10 ma ripple rejection 1 all f=120hz, c out =25 f tantalum, i out =3a, (v in -v out )=3v, c adj =25 f 60 75 - db adjust pin current adjustable - 50 120 a temperature stability - 0.5 - % long term stability t a =25c, 1000hrs - 0.03 1 % note: 1. for s3u1085lm(adj) v adj =0v 2. for the adjustable device the mi nimum load current is the minimum current requir ed to maintain regulation. normally the cur rent in the resistor divider used to set the output voltage is selected to meet the minimum load current requirement. 3. the specification represent the minimum input/ output voltage required to maintain 1% regulation.
elektronische bauelemente s3u1085lm series 3a low dropout positive adjustable or fixed-mode regulator 06-jun-2013 rev. b page 4 of 5 http://www.secosgmbh.com/ any changes of specification will not be informed individually. characteristic curves
elektronische bauelemente s3u1085lm series 3a low dropout positive adjustable or fixed-mode regulator 06-jun-2013 rev. b page 5 of 5 http://www.secosgmbh.com/ any changes of specification will not be informed individually. characteristic curves
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