advanced AD1117-xx 1/9 www.advsemi.com ver.0.10 1a low dropout regulator scsi-ii active terminator ordering information to-220 3-pin to-263 3-pin sot-223 3-pin plastic soic 8 pin sot-89 3-pin to-252 dpak oper. temp. range AD1117u AD1117t AD1117m3 AD1117s AD1117m1 AD1117r -40c to +85c AD1117u-x AD1117t-x AD1117m3-x AD1117s-x AD1117m1-x AD1117r-x -40c to +85c x= output voltage (x = 1.5v, 2.5v, 2.85v, 3.0v, 3.3v, 5.0, or blank for adjustable) pin connections features ? guaranteed 1a output ? three terminal adjustable or fixed 1.5v, 2.5v, 2.85v, 3v, 3.3v & 5v ? very low quiescent current ? low dropout voltage of 1.2 volts at full load ? extremely tight load and line regulation ? very low temperature coefficient ? fixed 2.85v device for scsi-ii active terminator ? logic-controlled electronic shutdown ? surface mount packa g e sot-223 , to-252 , to-220 , sot-89 , to-263 , & so-8 applications ? scsi-ii active terminator ? portable/ palm top / notebook computers ? battery chargers ? disk drives ? portable consumer equipment ? portable instrumentation ? smps post-regulator product description the advanced semiconductor AD1117 is a low power positive-voltage re gulator designed to meet 1a output current and comply with scsi-ii specifications with a fixed output voltage of 2.85v. this device is an excellent choice for use in battery-powered applications, as active terminators for the scsi bus, and portable com puters. the AD1117 features very low quiescent current a nd very low dropout voltage of 1.2v at a full load and lower as output current decreases. AD1117 is available as an adjustable or fixed 2.85v, 3v, 3.3v, and 5v output voltages. the AD1117 is offered in a 3-pin surface mount package sot-223, to-252, to-220, sot-89 & to- 263. the output capacitor of 10mf or larger is needed for output stability of AD1117 as required by most of the other regulator circuits. use of advanced semiconductor?s design, pr ocessing and testing techniques make our AD1117 superior over similar products. www.datasheet.co.kr datasheet pdf - http://www..net/
advanced AD1117-xx 2/9 www.advsemi.com ver.0.10 absolute maximum ratings power dissipation..... ............ ........... ...........internally limite d input supply voltage. ............ .......... .... -20v to +20v lead temp. (soldering, 5 seconds) .......... .... 260c esd rating ...... ............ ............ ........... .......... ......2kv min storage temperature range .... ........ -65 to +150c operating junction temperature range AD1117 ................... ............ ......... ........-40c to +125c electrical characteristics at v in = v out +1 , ta=25c, cl =3.3 f, unless otherwise specified. limits in boldface apply over the full operating temperature range. parameter conditions typ AD1117 units min max 1.5v version output voltage i out = 10ma, v in = 4.85v 1.5 1.485 1.515 v 0 i out 1a, 4.25 v in 10v 1.47 1.53 2.5v version output voltage iout = 10ma, vin = 4.85v 2.5 2.475 2.525 v 0 iout 1a, 4.25 vin 10v 2.45 2.55 2.85v version output voltage iout = 10ma, vin = 4.85v 2.85 2.822 2.879 v 0 iout 1a, 4.25 vin 10v 2.793 2.907 3.0v version output voltage iout = 10ma, vin = 4.85v 3 2.97 3.03 v 0 iout 1a, 4.75 vin 10v 2.94 3.06 3.3v version output voltage iout = 10ma, vin = 5.0v 3.3 3.267 3.333 v 0 iout 1a, 4.75 vin 10v 3.234 3.366 5.0v version output voltage iout = 10ma, vin = 7.0v 5 4.95 5.05 v 0 iout 1a, 6.50 vin 12v 4.9 5.1 all output options reference voltage i out = 10ma, (vin - vout) = 2v 1.25 1.238 1.262 v 10 iout 1a, 1.4 (vin -vin) 10v 1.225 1.27 output voltage temperature stability (note 1) 0.05 % line regulation 4.25v vin 10v, vout = 2.85, iout = 0 1.00 1.00 1.00 1.00 6.00 7.00 7.00 10.00 mv 4.50v vin 12v, vout = 3.00, iout = 0 4.80v vin 12v, vout = 3.30, iout = 0 6.50v vin 15v, vout = 5.00, iout = 0 load regulation 0 iout 1a, vin = 4.25v, vout = 2.85 1.00 1.00 10.00 12.00 mv www.datasheet.co.kr datasheet pdf - http://www..net/
advanced AD1117-xx 3/9 www.advsemi.com ver.0.10 0 iout 1a, vin = 4.50v, vout = 3.00 1.00 1.00 12.00 15.00 0 iout 1a, vin = 4.80v, vout = 3.30 0 iout 1a, vin = 6.50v, vout = 5.00 dropout voltage ( note 2) il = 100ma il = 500ma il = 1a 1.00 1.05 1.10 1.10 1.15 1.20 v quiescent current 4.25v vin 6.5v 5 10 ma current limit (vin-vout) = 5v 1000 1200 ma thermal regulation 25 c,30ms pulse 0.01 0.1 %/w ripple rejection f ripple = 120hz, (v in -v out ) = 3v, v ripple = 1v p-p 60 75 db long term stability 125c, 1000hrs 0.03 % rms output noise % of v out , 10hzf10khz 0.003 % thermal resistance junction to case, at tab 15 c/w note 1: output temperature coefficient is defined as the worst case voltage change divided by the total temperature range note 2: dropout voltage is defined as the input to output differential at which the output vol tage drops 100mv below its nominal value measured at 1v differential at very low values of programmed output voltage, the minimum input supply voltage of 2v ( 2.3v over temperature) must be taken into account. note 3: thermal regulation is defined as th e change in output voltage at a time t a fter a change in power dissipation is applie d. excluding load or line regulation effect. www.datasheet.co.kr datasheet pdf - http://www..net/
advanced AD1117-xx 4/9 www.advsemi.com ver.0.10 application notes externalcapacitor pd = (v in - v out )(i out ) to ensure the stability of the AD1117 an output capacitor ofat least 10f (tantalum)or 50f (aluminum) is required.the value may change based on the applicationrequirements on the output load or temperature range. thecapacitor equivalent series resistance (esr) will effect theAD1117 stability. the value of esr can vary from the typeof capacitor used in the applications. the recommendedvalue for esr is 0.5. the output capacitance couldincrease in size to above the minimum value. the larger value of output capacitance as high as 100f can improvethe load transient response. maximum junction temperature range: t j = t ambient (max) + pd* thermal resistance (junction-to-ambient maximum junction temperature must not exceed the 125c. soldering methodsthe AD1117 sot-223 package is designed to be compatiblewith infrared reflow or vapor- p hase reflow solderingtechniques. during soldering the non-active or mildlyactive fluxes may be used. the AD1117 die is attached tothe heatsink lead which exits opposite the input, output, andground pins.hand soldering and wave soldering should be avoided sincethese methods can cause damage to the device withexcessive thermal gr adients on the package. the sot-223recommended soldering method are as follows: vapo r p hasereflow and infrared reflow with the component preheated towithin 65c of the soldering temperature range. thermal characteristicsthe thermal resistance o f AD1117 is 15c/w from junctionto tab and 31 c/w from tab to ambient for a total of 46c/w from junction to ambient. the AD1117 features theinternal th ermal limiting to protect the device duringoverload conditions. special care needs to be taken duringcontinuos load conditions the maximum j unctiontemperature does not exceed 125 c.taking the fr-4 p rinted circuit board and 1/16 thick with 1ounce copper foil as an experiment (fig.1 & fig.2), the pcbmaterial is effective a t transmitting heat with the tabattached to the p ad area and a ground plane layer on thebackside of the substrate. refer to table 1 for the results ofthe experiment.the thermal interaction from other components in theapplication can effect the thermal resistance of the AD1117.the act ual thermal resistance can be determined withexperimentation. AD1117 p ower dissipation is calculated asfollows: www.datasheet.co.kr datasheet pdf - http://www..net/
advanced AD1117-xx 5/9 www.advsemi.com ver.0.10 total pc board area topdide copper area backside copper area thermal resistance junction to ambient 2500mm 2500mm 2500mm 46c/w 2500mm 1250mm 2500mm 47c/w 2500mm 950mm 2500mm 49c/w 2500mm 2500mm 0 51c/w 2500mm 1800mm 0 53c/w 1600mm 600mm 1600mm 55c/w 2500mm 1250mm 0 58c/w 2500mm 915mm 0 59c/w 1600mm 600mm 0 67c/w 900mm 240mm 900mm 72c/w 900mm 240mm 0 85c/w table 1. www.datasheet.co.kr datasheet pdf - http://www..net/
advanced AD1117-xx 6/9 www.advsemi.com ver.0.10 package drawing to-263-3l (t) package drawing sot-223-3l (m3) www.datasheet.co.kr datasheet pdf - http://www..net/
advanced AD1117-xx 7/9 www.advsemi.com ver.0.10 package drawing to-220-3l (u) package drawing 8-pin soic (s) www.datasheet.co.kr datasheet pdf - http://www..net/
advanced AD1117-xx 8/9 www.advsemi.com ver.0.10 package drawing sot-89 (m1) dim millimeters inches min max min max a 4.40 4.60 0.174 0.181 b 2.29 2.60 0.091 0.102 c 140 160 0.056 0.062 d 0.36 0.48 0.015 0.018 e 1.62 1.80 0.064 0.070 f 0.44 0.53 0.018 0.020 g 150 bsc 0.059 bsc j 0.35 0.44 0.014 0.017 k 0.80 1.04 0.032 0.040 l 300 bsc 0.118 bsc n 2.04 2.28 0.081 0.089 p 3.94 4.25 0.156 0.167 style 1 pin 1. base 2. collector 3. emitter style 2 pin 1. anode 2. cathode 3. no connection style 3 pin 1. gate 2. anode 3. cathode style 4 pin 1. drain 2. gate 3. source www.datasheet.co.kr datasheet pdf - http://www..net/
advanced AD1117-xx 9/9 www.advsemi.com ver.0.10 package drawing to-252-3l (r) s y m b o l inches mm n o t e min max min max e a 0.086 0.094 2.184 2.3876 a1 0.035 0.045 0.889 1.143 b 0.025 0.035 0.635 0.889 b1 0.300 0.045 7.620 1.143 b2 0.205 0.215 5.207 5.461 4 c 0.018 0.023 0.457 0.5842 c1 0.018 0.023 0.457 0.5842 d 0.235 0.245 5.969 6.223 d1 0.170 - 4.318 - 4,5 e 0.250 0.265 6.350 6.731 e1 0.170 - 4.318 - 4,5 e 0.098 2.489 e1 0.180 4.572 h 0.370 0.410 9.398 10.414 l 0.020 - 0.508 - 6 l1 0.025 0.040 0.635 1.016 l2 0.035 0.050 0.889 1.270 4 l3 0.045 0.060 1.143 1.524 3 notes 1. refer to applicable symbol list. 2. dimensions and tolerancing per ansi y14.5m - 1982. 3. lead dimension uncontrolled in l 3. 4. tab contour optional within dim. b 2 & l2 and e1 & d1 5. d1 & e1 establishes a minimum mounting surface for terminal 4. 6. l is the termal length for soldering. 7. controlling dimension: inch 8. 2 mils suggested for postive contact at mounting. www.datasheet.co.kr datasheet pdf - http://www..net/
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