1/9 axelite confidential materials, do not copy or distribute without written consent. rev.1.0 apr. 25, 2011 a x7805/09/12 3-terminal fixed negative voltage regulator ? general description the ax7805/09/12 series voltage regulator s are monolithic integrated circuits designed as fixed-voltage regul ators for a wide variety of applications including local, on-card regulation. these regulators employ inte rnal current limiting, thermal shutdown, and safe-area compensation. with adequate heatsink they can deliver output currents up to 1 ampere. although designed primarily as a fi xed voltage regulator, these devices can be used with external components to obt ain adjustable voltages and currents. ? features - output voltage range 5 to 24v - output current up to 1a - no external components required - internal thermal overload protection - internal short-circuit current limiting - output transistor safe-area compensation - output voltage offered in 4% tolerance ? pin assignment the packages of ax7805/09/12 are to220-3l and to 252-3l; the pin assignment is given by: name description in voltage input gnd (tab) grand out voltage output to220-3l 3 2 1 top view in metal tap gnd out gnd(tab ) c?gcn?tuf? gofo m?w3^v?mw`r?y?b?g ?pqls? tel ? 0755-8398 3377 135 9011 2223 http://www.gofotech.com free datasheet http:///
2/9 axelite confidential materials, do not copy or distribute without written consent. rev.1.0 apr. 25, 2011 a x7805/09/12 ? order/marking information order information top marking ? absolute maximum ratings (t a = 25 o c unless otherwise noted) characteristics symbol rating unit input voltage v out =5~18v v in 35 v v out =24v 40 output current i out internal limited power dissipation p d internal limited operating junction temperature t j 0~+125 c storage temperature range t stg -65~+150 c thermal resistance - junction to case to220-3l jc 5 c/w to252-3l 10 thermal resistance - junction to ambient to220-3l ja 45 c/w to252-3l 55 note: absolute maximum ratings are those values bey ond which damage to the device may occur. functional operation under these conditions is not implied c?gcn?tuf? gofo m?w3^v?mw`r?y?b?g ?pqls? tel ? 0755-8398 3377 135 9011 2223 http://www.gofotech.com free datasheet http:///
3/9 axelite confidential materials, do not copy or distribute without written consent. rev.1.0 apr. 25, 2011 a x7805/09/12 ? electrical characteristics ax7805 electrical characteristics (v in =10v, i out =500ma, 0c ? tj ? 125c, c in =0.33uf, c out =0.1uf; unless otherwise specified.) parameter symbol test condition min typ max unit output voltage v out tj=25c 4.80 5 5.20 v 7.5v ? v in ? 20v, 10ma ? i out ? 1a, pd? 15w 4.75 5 5.25 line regulation re gline tj=25c 7.5v ? v in ? 25v - 3 100 mv 8v ? v in ? 12v - 1 50 load regulation re gload tj=25c 10ma ? i out ? 1a - 15 100 250ma ? i out ? 750ma - 5 50 quiescent current iq i out =0, tj=25c - 4.2 8 ma quiescent current change ? iq 7.5v ? v in ? 25v - - 1.3 10ma ? i out ? 1a - - 0.5 output noise voltage vn 10hz ? f ? 100khz, tj=25c - 40 - v ripple rejection ratio rr f=120hz, 8v ? vin ? 18v 62 78 - db voltage drop v dro p i out =1.0a, tj=25c - 2 - v output resistance r out f=1khz - 17 - m ? output short circuit current i os tj=25c - 750 - ma peak output current io peak tj=25c - 2.2 - a temperature coefficient of output voltage ? v out / ? tj i out =10ma, 0c ? tj ? 125c - -0.6 - mv/ c note1 : pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible, and thermal effects must be taken into account separately. note 2 : this specification applies only for dc power di ssipation permitted by absolute maximum ratings. c?gcn?tuf? gofo m?w3^v?mw`r?y?b?g ?pqls? tel ? 0755-8398 3377 135 9011 2223 http://www.gofotech.com free datasheet http:///
4/9 axelite confidential materials, do not copy or distribute without written consent. rev.1.0 apr. 25, 2011 a x7805/09/12 AX7809 electrical characteristics (v in =15v, i out =500ma, 0c ? tj ? 125c, c in =0.33uf, c out =0.1uf; unless otherwise specified.) parameter symbol test condition min typ max unit output voltage v out tj=25c 8.65 9 9.36 v 11.5v ? v in ? 23v, 10ma ? i out ? 1a, pd ? 15w 8.57 9 9.45 line regulation re gline tj=25c 11.5v ? v in ? 26v - 6 180 mv 12v ? v in ? 17v - 2 90 load regulation regload tj=25c 10ma ? i out ? 1a - 12 180 250ma ? i out ? 750ma - 4 90 quiescent current iq i out =0, tj=25c - 4.3 8 ma quiescent current change iq 11.5v ? v in ? 26v - - 1 10ma ? i out ? 1a - - 0.5 output noise voltage vn 10hz ? f ? 100khz, tj=25c - 52 - uv ripple rejection ratio rr f=120hz, 12v ? v in ? 22v 55 72 - db voltage drop v dro p i out =1.0a, tj=25c - 2 - v output resistance r out f=1khz - 16 - m ? output short circuit current ios tj=25c - 450 - ma peak output current io peak tj=25c - 2.2 - a temperature coefficient of output voltage v out / tj i out =10ma, 0c ? tj ? 125c - -1 - mv/ c note1 : pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible, and thermal effects must be taken into account separately. note 2 : this specification applies only for dc power di ssipation permitted by absolute maximum ratings. c?gcn?tuf? gofo m?w3^v?mw`r?y?b?g ?pqls? tel ? 0755-8398 3377 135 9011 2223 http://www.gofotech.com free datasheet http:///
5/9 axelite confidential materials, do not copy or distribute without written consent. rev.1.0 apr. 25, 2011 a x7805/09/12 ax7812 electrical characteristics (v in =19v, i out =500ma, 0c ? tj ? 125c, c in =0.33uf, c out =0.1uf; unless otherwise specified.) parameter symbol test condition min typ max unit output voltage v out tj=25c 11.53 12 12.48 v 14.5v ? v in ? 27v, 10ma ? i out ? 1a, pd ? 15w 11.42 12 12.60 line regulation re gline tj=25c 14.5v ? v in ? 30v - 10 240 mv 15v ? v in ? 19v - 3 120 load regulation re gload tj=25c 10ma ? i out ? 1a - 12 240 250ma ? i out ? 750ma - 4 120 quiescent current iq tj=25c, i out =0 - 4.3 8 ma quiescent current change iq 14.5v ? v in ? 30v - - 1 10ma ? i out ? 1a - - 0.5 output noise voltage vn 10hz ? f ? 100khz, tj=25c - 75 - uv ripple rejection ratio rr f=120hz, 15v ? v in ? 25v 55 71 - db voltage drop v dro p i out =1.0a, tj=25c - 2 - v output resistance r out f=1khz - 18 - m ? output short circuit current i os tj=25c - 350 - ma peak output current io peak tj=25c - 2.2 - a temperature coefficient of output voltage v out / tj i out =10ma, 0c ? tj ? 125c - -1 - mv/ c note1 : pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible, and thermal effects must be taken into account separately. note 2 : this specification applies only for dc power di ssipation permitted by absolute maximum ratings c?gcn?tuf? gofo m?w3^v?mw`r?y?b?g ?pqls? tel ? 0755-8398 3377 135 9011 2223 http://www.gofotech.com free datasheet http:///
6/9 axelite confidential materials, do not copy or distribute without written consent. rev.1.0 apr. 25, 2011 a x7805/09/12 ? application circuit note1 : a common ground is required between the input and the output voltages. the input voltage must remain typically 2.0v above the output voltage even during the low point on the input ripple voltage. note2 : xx = these two digits of the type number indicate voltage. * = cin is required if regulator is located an appreciable distance from power supply filter. ** = co is not needed for stability; however, it does improve transient response. ? typical characteristics peak output current as a function of input-output diff erential voltage ripple rejection as a function of output voltage ripple rejection as a function of frequency output voltage as a function of junction temperature c?gcn?tuf? gofo m?w3^v?mw`r?y?b?g ?pqls? tel ? 0755-8398 3377 135 9011 2223 http://www.gofotech.com free datasheet http:///
7/9 axelite confidential materials, do not copy or distribute without written consent. rev.1.0 apr. 25, 2011 a x7805/09/12 ? typical characteristics output impedance as a function of output voltage quiescent current as a function of temperature d 2 pak thermal resistance and maximum power dissipation vs. p.c.b copper length c?gcn?tuf? gofo m?w3^v?mw`r?y?b?g ?pqls? tel ? 0755-8398 3377 135 9011 2223 http://www.gofotech.com free datasheet http:///
8/9 axelite confidential materials, do not copy or distribute without written consent. rev.1.0 apr. 25, 2011 a x7805/09/12 ? package outlines (1) to252-3l b2 e e b l2 e1 d l1 h a c1 c a1 seating plane l 5.6 11.0 5.6 2.0 2.25 land pattern recommendation (unit: mm) 7.2 1.2 d1 notes: 1. jedec outline: to-252 ab 2. mils suggested for positive contact at mounting. symbol dimensions in millimeters dimensions in inches min. nom. max. min. nom. max. a 2.18 2.29 2.40 0.086 0.090 0.094 a 1 0.89 - 1.14 0.035 - 0.045 b 0.61 typ. 0.024 typ. b2 5.20 5.35 5.50 0.205 0.211 0.217 c 0.45 0.52 0.58 0.018 0.020 0.023 c1 0.45 0.52 0.58 0.018 0.020 0.023 d 5.40 5.57 6.20 0.213 0.219 0.244 d1 4.57 4.77 4.97 0.180 0.188 0.196 e 6.35 6.58 6.80 0.250 0.259 0.268 e 2.28 bsc. 0.090 bsc. e1 4.57 bsc. 0.180 bsc. h 9.00 9.70 10.40 0.354 0.382 0.409 l 0.51 - - 0.020 - - l1 0.64 0.83 1.02 0.025 0.033 0.040 l2 0.88 - 1.27 0.035 - 0.050 c?gcn?tuf? gofo m?w3^v?mw`r?y?b?g ?pqls? tel ? 0755-8398 3377 135 9011 2223 http://www.gofotech.com free datasheet http:///
9/9 axelite confidential materials, do not copy or distribute without written consent. rev.1.0 apr. 25, 2011 a x7805/09/12 (2) to220-3l a j1 f c seating plane d q e l1 l b e e1 b1 h1 a j1 f c seating plane d q e l1 l b e e1 b1 h1 p symbol dimensions in millimeters dimensions in inches min. nom. max. min. nom. max. a 3.55 4.20 4.85 0.140 0.165 0.191 b1 1.14 1.46 1.78 0.045 0.057 0.070 b 0.51 0.83 1.14 0.020 0.033 0.045 c 0.31 0.72 1.14 0.012 0.028 0.045 d 14.20 15.35 16.50 0.559 0.604 0.650 e 9.70 10.20 10.70 0.382 0.402 0.421 e 2.29 2.54 2.79 0.090 0.100 0.110 e1 4.83 5.08 5.33 0.190 0.200 0.210 f 0.51 0.95 1.40 0.020 0.037 0.055 h1 5.84 6.35 6.86 0.230 0.250 0.270 j1 2.03 2.48 2.92 0.080 0.098 0.115 l 12.72 13.72 14.72 0.501 0.540 0.580 l1 3.66 5.00 6.35 0.144 0.197 0.250 p 3.53 3.81 4.09 0.139 0.150 0.161 q 2.54 2.98 3.43 0.100 0.117 0.135 c?gcn?tuf? gofo m?w3^v?mw`r?y?b?g ?pqls? tel ? 0755-8398 3377 135 9011 2223 http://www.gofotech.com free datasheet http:///
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