semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk prelim. 4/95 lm1085m military version absolute maximum ratings (t case = 25c unless otherwise stated) device (1) package lm1085mk?xx to?3 lm1085mg?xx to?257 lm 1085mig?xx isolated to?257 lm1085msm?xx to?220sm description the l m 1085 voltage regulators are monolithic integ rated circuits designed for use in applications requiring a well regulated positive output voltage with low input-output differential voltage. features include full power usage of up to 3a load current, internal current limiting and thermal shutdown. safe area protection on the die is also included, providing protection of the series pass darlington transistor under most conditions. the hermetically sealed to?3 packages are utilised for high reliablitiy and low thermal resistance, whilst the smd1 package is designed for surface mount applications. note 1) ?xx = voltage option: 3.3, 5 or 12 ?xx = left blank for adjustable option. 3 amp positive voltage regulator v in input ? output voltage differential p d power dissipation r q jc thermal resistance junction to case to?3 control to?3 power r q jc thermal resistance junction to case smd1 control smd1 power r q jc thermal resistance junction to case to?257 control to?257 power t j operating junction temperature range control power t stg storage temperature range t lead lead temperature (for 10 sec.) 35v internally limited * 0.93c / w 3.0c / w 0.79c / w 4.0c / w 0.79c / w 4.0c / w ?55 to 150c ?55 to 200c ?65 to 150c 300c features ? low dropout performance fixed or adjustable voltages fixed output voltages of 3.3v, 5v & 12v adjustable output voltage range from 1.2v line regulation 0.015% / v typical. load regulation 0.01% typical. available in hermetically sealed to?3,smd1 and to?257 (isolated & non-isolated) packages. military temperature range (?55 to +150c) input safe area protection thermal overload current limiting amplifier voltage regulation amplifier output adjust limit sense v ref * these ratings are only applicable for power dissipations of 30 watts over a limited range of v in ? v out .
semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk prelim. 4/95 lm1085m military version v o 4 output voltage v ref 4 reference voltage reg (line) 4 line regulation reg (load) 4 load regulation v d dropout voltage i cl current limit i q quiescent current reg (therm) thermal regulation i pin adjust pin current d i pin adjust pin current change t s temperature stability i o minimum load current v n rms output noise 5 r a ripple rejection ratio 6 v in ? v out = 6.3v i o = 10ma i o = 10ma to 3a t j = over temp 3 v in ? v out = 8v i o = 10ma i o = 10ma to 3a t j = over temp 3 v in ? v out = 15v i o = 10ma i o = 10ma to 3a t j = over temp 3 v in ? v out = v o + 3v i o = 10ma i o = 10ma to 3a t j = over temp 3 v in ? v out = 1.5 to 15v t j = 25c i o = 10ma t j = over temp 3 v in ? v out = 1.5 to 35v i o = 10ma t j = over temp 3 v in ? v out = 3v t j = 25c v in ? v out = 3v t j = over temp 3 d v out , d v ref = 1% t j = over temp 3 v in ? v out = 5v t j = over temp 3 v in ? v out = 25v t j = over temp 3 v in ? v out = 35v t j = over temp 3 t p = 30ms t j = 25c t j = 25c t j = over temp 3 t j = over temp 3 v in ? v out = 5v i o = 0.5a t j = over temp 3 v in ? v out = 25v i o = 0.5a t j = over temp 3 t j = 25c v in ? v out = 3v i o = 3a t j = over temp 3 3.267 3.3 3.333 3.234 3.3 3.366 4.95 5 5.05 4.90 5 5.10 11.88 12 12.12 11.76 12 12.24 1.238 1.25 1.262 1.225 1.25 1.270 0.015 0.2 0.035 0.05 0.6 0.1 0.3 0.2 0.4 1.3 1.5 3.2 4.0 0.2 0.5 10 0.002 0.01 55 120 0.2 5 0.5 510 0.003 60 75 3.3 5 12 adj. output parameter voltage test conditions 1,2 min. typ. max. unit electrical characteristics (t j = 25 c unless otherwise stated) v v % % % v a ma % / w m a m a % ma %v o db notes 1. test conditions unless otherwise stated: v in = 1.5 to 35v, or maximum input, whichever is less. i o = 10ma to 3a. 2. these specifications are only applicable for power dissipations of 30 watts over a limited range of v in ? v out . 3. over temp. = over specified junction temperature range (see absolute maximum ratings). 4. low duty cycle pulse test with kelvin connections required. changes in output voltage are covered under the specification for thermal regulation. 5. bandwidth of 10hz to 10khz. 6. 120hz input ripple, 15v = 64db min. c out (c adj ) = 25m f.
semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk prelim. 4/95 lm1085m military version g & ig packages (to?257) 3.05 0.08 (0.12 0.003) ? 3.05 (0.120) 3.30 (0.130) 0.64 (0.025) 0.89 (0.035) 2.54 0.08 (0.10 0.003) 1 0.4 1 (0.4 1) 1 0.9 2 (0.4 3) 1 6.3 8 (0 .64 5) 1 6.8 9 (0 .66 5) 0.89 (0.035) 1.14 (0.045) 10.41 (0.410) 10.72 (0.422) 4.83 (0.190) 5.46 (0.215) 12.70 (0.50) 19.05 (0.75) 1 3.39 (0.5 27) 1 3.64 (0.5 37) 123 k package (to ?3) smd1 package lm1085mk pin fixed adjustable 1 common adjust 2 output output 3 input input case is output pin fixed adjustable 1 common adjust 2 input input case is output lm1085msmd pin fixed adjustable 1 common adjust 2 output output 3 input input lm1085mg pin fixed adjustable 1 common adjust 2 output output 3 input input case is isolated lm1085mig 40.01 (1.575) max. 4.47 (0.176) rad. 2 pls. 22.23 (0.875) max. 11.43 (0.450) 6.35 (0.250) 12.19 (0.48) 11.18 (0.44) 1.63 (0.064) 1.52 (0.060) 1.09 (0.043) 0.97 (0.038) dia. 30.40 (1.197) 29.90 (1.177) 16.97 (0.668) 16.87 (0.664) 4.09 (0.161) 3.84 (0.151) 2 pls 11.18 (0.440) 10.67 (0.420) 26.67 (1.050) max. 2 1
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