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5a low dropout linear regulator az1084c data sheet 1 jan. 2013 rev. 1. 7 bcd semiconductor manufacturing limited general description the az1084c is a series of low dropout positive volt- age regulators with a maximum dropout of 1.5v at 5a of load current. the series features on-chi p thermal limiting which pro- vides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures. it al so includes a trimmed band- gap reference and a current limiting circuit. the az1084c is available in 1.5v, 1.8v, 2.5v, 3.3v and 5.0v versions. the fixed versions integrate the adjust resistors. it is also available in an adjustable ver- sion which can set the output voltage with two external resistors. the az1084c series is avai lable in standard packages of to-263-3, to-263-2, to-252-2 (3) and to-252-2 (4). features low dropout voltage: 1.35v typical at 5a current limiting and thermal protection output current: 5a current limit: 6.5a operating junction temperature range: 0 to 125 o c compatible with low esr ceramic capacitor line regulation (adj version): 0.015% (typ) load regulation (adj version): 0.1% (typ) applications high efficiency linear regulators battery chargers post regulation for switching supply microprocessor supply desktop pcs, risc and embedded processors' supply figure 1. package types of az1084c to-263-2 to-263-3 to-252-2 (3) to-252-2 (4)
5a low dropout linear regulator az1084c data sheet 2 jan. 2013 rev. 1. 7 bcd semiconductor manufacturing limited figure 2. pin configuration of az1084c (top view) pin configuration s package (to-263-3) s2 package (to-263-2) d packages (to-252-2 (3)) 1 2 3 input output adj/gnd input output (tab) adj/gnd 1 2 3 (to-252-2 (4)) 1 2 3 input output adj/gnd 1 2 3 input output adj/gnd
data sheet 3 bcd semiconductor manufacturing limited 5a low dropout linear regulator az1084c jan. 2013 rev. 1. 7 functional block diagram figure 3. functional block diagram of az1084c thermal protection + - for adjustable output, disconnect a1 and a2, connect b input output adj/ gnd a1 a2 b for fixed output, connect a1 and a2, disconnect b 3 2 1
5a low dropout linear regulator az1084c data sheet 4 jan. 2013 rev. 1. 7 bcd semiconductor manufacturing limited circuit type package adj: adjustable output 1.5: fixed output 1.5v 1.8: fixed output 1.8v 2.5: fixed output 2.5v 3.3: fixed output 3.3v 5.0: fixed output 5.0v e1: lead free g1: green az1084c - tr: tape and reel blank: tube s: to-263-3 ordering information package tempera- ture range part number marking id packing type lead free green lead free green to-263-3 0 to 125 o c az1084cs-adje1 az1084cs-adjg1 az1084cs-adje1 az1084cs-adjg1 tube az1084cs-adjtre1 az1084cs-adjtrg1 az1084cs-adje1 az1084cs-adjg1 tape & reel az1084cs-1.5e1 az1084cs-1.5g1 az1084cs-1.5e1 az1084cs-1.5g1 tube az1084cs-1.5tre1 az1084cs-1.5trg1 az1084cs-1.5e1 az1084cs-1.5g1 tape & reel az1084cs-1.8e1 az1084cs-1.8g1 az1084cs-1.8e1 az1084cs-1.8g1 tube az1084cs-1.8tre1 az1084cs-1.8trg1 az1084cs-1.8e1 az1084cs-1.8g1 tape & reel az1084cs-2.5e1 az1084cs-2.5g1 az1084cs-2.5e1 az1084cs-2.5g1 tube az1084cs-2.5tre1 az1084cs-2.5trg1 az1084cs-2.5e1 az1084cs-2.5g1 tape & reel az1084cs-3.3e1 az1084cs-3.3g1 az1084cs-3.3e1 az1084cs-3.3g1 tube az1084cs-3.3tre1 az1084cs-3.3trg1 az1084cs-3.3e1 az1084cs-3.3g1 tape & reel az1084cs-5.0e1 az1084cs-5.0g1 az1084cs-5.0e1 az1084cs-5.0g1 tube az1084cs-5.0tre1 az1084cs-5.0trg1 az1084cs-5.0e1 az1084cs-5.0g1 tape & reel to-263-2 0 to 125 o c az1084cs2-adje1 az1084cs2-adjg1 az1084cs2-adje1 az1084cs2-adjg1 tube az1084cs2-adjtre1 az1084cs2-adjtrg1 az1084cs2-adje1 az1084cs2-adjg1 tape & reel az1084cs2-1.5e1 az1084cs2-1.5g1 az1084cs2-1.5e1 az1084cs2-1.5g1 tube az1084cs2-1.5tre1 az1084cs2-1.5trg1 az1084cs2-1.5e1 az1084cs2-1.5g1 tape & reel az1084cs2-1.8e1 az1084cs2-1.8g1 az1084cs2-1.8e1 az1084cs2-1.8g1 tube az1084cs2-1.8tre1 az1084cs2-1.8trg1 az1084cs2-1.8e1 az1084cs2-1.8g1 tape & reel az1084cs2-2.5e1 az1084cs2-2.5g1 az1084cs2-2.5e1 az1084cs2-2.5g1 tube az1084cs2-2.5tre1 az1084cs2-2.5trg1 az1084cs2-2.5e1 az1084cs2-2.5g1 tape & reel az1084cs2-3.3e1 az1084cs2-3.3g1 az1084cs2-3.3e1 az1084cs2-3.3g1 tube az1084cs2-3.3tre1 az1084cs2-3.3trg1 az1084cs2-3.3e1 az1084cs2-3.3g1 tape & reel az1084cs2-5.0e1 az1084cs2-5.0g1 az1084cs2-5.0e1 az1084cs2-5.0g1 tube az1084cs2-5.0tre1 az1084cs2-5.0trg1 az1084cs2-5.0e1 az1084cs2-5.0g1 tape & reel s2: to-263-2 d: to-252-2 (3)/to-252-2 (4)
data sheet 5 bcd semiconductor manufacturing limited 5a low dropout linear regulator az1084c jan. 2013 rev. 1. 7 ordering information (continued) package temperature range part number marking id packing type to-252-2 (3)/ to-252-2 (4) 0 to 125 o c az1084cd-adjtrg1 az1084cd-adjg1 tape & reel az1084cd-1.5trg1 az1084cd-1.5g1 tape & reel az1084cd-1.8trg1 az1084cd-1.8g1 tape & reel az1084cd-2.5trg1 az1084cd-2.5g1 tape & reel az1084cd-3.3trg1 az1084cd-3.3g1 tape & reel az1084cd-5.0trg1 az1084cd-5.0g1 tape & reel bcd semiconductor's pb-free product s, as designated with "e1" suffix in the part number, are rohs compliant. products with "g1" suffix are available in green packages.
5a low dropout linear regulator az1084c data sheet 6 jan. 2013 rev. 1. 7 bcd semiconductor manufacturing limited note 1: stresses greater than those listed under "absolute maximum ratings" may cause permanent damage to the device. these are stress ratings only, and functional operatio n of the device at these or any other conditions beyond those indicated under"recommended operating conditions" is not implied. exposure to "absolute maximum ratings" for extended periods ma y affect device reliability. note 2: absolute maximum ratings indicate limits beyond which damage to the component may occur. electrical specifications do not apply when operating the device outside of its operating ratings. the maximum allowable power dissipation is a function of the maximum junction temperature, t j(max), the junction-to-ambient thermal resistance, ja, and the ambient temperature, t a. the maximum allowable power di ssipation at any ambient tem- perature is calculated using: p d(max) =(t j(max) -t a )/ ja. exceeding the maximum allowa ble power dissipation will result in excessive die temperature, and th e regulator will go into thermal shutdown. recommended operating conditions parameter symbol value unit operating junction temperature t j 150 o c storage temperature range t stg -65 to 150 o c lead temperature (s oldering, 10sec.) t lead 260 o c thermal resistance (note 2) ja to-263-2 60 o c/w to-263-3 60 to-252-2 (3)/to-252-2 (4) 100 esd (human body model) esd 2000 v esd (machine model) esd 400 v parameter symbol min max unit input voltage v in 12 v operating junction temperature range t j 0 125 o c absolute maximum ratings (note 1)
data sheet 7 bcd semiconductor manufacturing limited 5a low dropout linear regulator az1084c jan. 2013 rev. 1. 7 electrical characteristics typicals and limits appearing in normal type apply for t j =25 o c. limits appearing in boldface type apply over parameter symbol conditions min typ max unit reference voltage v ref az1084c-adj, i out =10ma, v in -v out =3v, 10ma i out 5a, 1.5v v in -v out 5v 1.238 1.225 1.250 1.250 1.262 1.270 v output voltage v out az1084c-1.5, i out =0ma, v in =4.5v, 10ma i out 5a, 3.0v v in 6v 1.485 1.47 1.5 1.5 1.515 1.53 v az1084c-1.8, i out =0ma, v in =4.8v, 10ma i out 5a, 3.3v v in 6v 1.782 1.764 1.8 1.8 1.818 1.836 v az1084c-2.5, i out =0ma, v in =5.5v 10ma i out 5a, 4.0v v in 7v 2.475 2.45 2.5 2.5 2.525 2.55 v az1084c-3.3, i out =0ma, v in =6.3v, 10ma i out 5a, 4.8v v in 8v 3.267 3.234 3.3 3.3 3.333 3.366 v az1084c-5.0, i out =0ma, v in =8v, 10ma i out 5a, 6.5v v in 10v 4.95 4.9 5 5 5.05 5.1 v line regulation v out az1084c-adj, i out =10ma, 2.85v v in 10v 0.015 0.035 0.2 0.2 % az1084c-1.5, i out =10ma, 3.0v v in 10v 0.5 1 6 6 mv az1084c-1.8, i out =10ma, 3.3v v in 10v 0.5 1 6 6 mv az1084c-2.5, i out =10ma, 4.0v v in 10v 0.5 1 6 6 mv az1084c-3.3, i out =10ma, 4.8v v in 10v 0.5 1 6 6 mv az1084c-5.0, i out =10ma, 6.5v v in 10v 0.5 1 10 10 mv the entire operating junctio n temperature range.
5a low dropout linear regulator az1084c data sheet 8 jan. 2013 rev. 1. 7 bcd semiconductor manufacturing limited electrical characteristics (continued) parameter symbol conditions min typ max unit load regulation v out az1084c-adj, 0ma i out 5a, v in -v out =3v 0.1 0.2 0.3 0.4 % az1084c-1.5, 0ma i out 5a, v in -v out =3v 3 7 15 20 mv az1084c-1.8, 0ma i out 5a, v in -v out =3v 3 7 15 20 mv az1084c-2.5, 0ma i out 5a, v in -v out =3v 3 7 15 20 mv az1084c-3.3, 0ma i out 5a, v in -v out =3v 3 7 15 20 mv az1084c-5.0, 0ma i out 5a, v in -v out =3v 5 10 20 35 mv dropout voltage v drop i out =4.5a, v ref , v out =1% 1.35 1.5 v thermal resistance (junction to case) jc to-263-3 4.15 o c/w to-263-2 4.15 to-252-2 (3)/to-252-2 (4) 7.36 current limit i limit v in -v out =3v 5.5 6.5 a minimum load current i load (min) v in =10v (az1084c-adj) 3 10 ma quiescent current i q v in =10v (az1084c) 5 10 ma ripple rejection psrr f ripple =120hz, c out =25 f tantalum, i out =5a, v in -v out =3v 60 72 db adjust pin current i adj v in =4.25v, i out =10ma 55 120 a adjust pin current change i adj 10ma i out 5a, 1.5v (v in -v out ) 4.5v 0.2 5 a temperature stability i out =10ma, v in -v out =1.5 0.5 % long term stability t a =125 o c, 1000hrs 0.5 % rms noise (% of v out ) 10hz f 10khz 0.003 % typicals and limits appearing in normal type apply for t j =25 o c. limits appearing in boldface type apply over the entire operating junctio n temperature range.
data sheet 9 bcd semiconductor manufacturing limited 5a low dropout linear regulator az1084c jan. 2013 rev. 1. 7 typical performance characteristics figure 4. dropout voltage vs. output current figure 5. output voltage vs. junction temperature 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 1.25 1.30 1.35 1.40 1.45 1.50 dropout voltage (v) output current (a) 0 25 50 75 100 125 2.47 2.48 2.49 2.50 2.51 2.52 2.53 output voltage (v) junction temperature ( o c) 0 20 40 60 80 100 120 1.246 1.248 1.250 1.252 1.254 1.256 1.258 1.260 reference voltage (v) junction temperature ( o c) i out =10ma 0 25 50 75 100 125 0.50 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.59 0.60 minimum load current (ma) junction temperature ( 0 c) figure 6. reference voltage vs. junction temperature f igure 7. minimum load curren t vs. junction temperature
5a low dropout linear regulator az1084c data sheet 10 jan. 2013 rev. 1. 7 bcd semiconductor manufacturing limited typical performance char acteristics (continued) 0 25 50 75 100 125 -1.0 -0.8 -0.6 -0.4 -0.2 0.0 line regulation (mv) junction temperature ( o c) figure 9. line regulation vs. junction temperature 012345 20 25 30 35 40 45 50 55 60 65 70 75 80 adjust pin current ( a) output current (a) figure 10. adjust pin current vs. output current 0 20406080100120 64 65 66 67 68 69 70 adjust pin current ( a) junction temperature ( o c) figure 8. adjust pin current vs. junction temperature 0 25 50 75 100 125 1.20 1.25 1.30 1.35 1.40 dropout voltage (v) junction temperature ( o c) figure 11. dropout voltage vs. junction temperature
data sheet 11 bcd semiconductor manufacturing limited 5a low dropout linear regulator az1084c jan. 2013 rev. 1. 7 i out (2.5a/div) typical performance char acteristics (continued) figure 14. load transient response figure 15. line transient response (conditions: v in =5.5v, v out =2.5v, i out =10ma to 5a c in =10 f, c out =10 f) (conditions: v in =4.5v to 6.5v, v out =2.5v, v out (100mv/div) time (100 s/div) 0 2.5 5 -100 0 100 200 -2.5 v out (20mv/div) v in (1v/div) time (200 s/div) 4.5 5.5 6.5 -20 0 20 40 3.5 figure 12. short circuit current vs. dropout voltage 024681012 0 1 2 3 4 5 6 7 8 short circuit current (a) dropout voltage (v) i out =200ma, c out =10 f) 0.1a -5 2.5 10 100 1k 10k 100k 1m 0 10 20 30 40 50 60 70 80 psrr (db) frequency (hz) figure 13. psrr vs. frequency
5a low dropout linear regulator az1084c data sheet 12 jan. 2013 rev. 1. 7 bcd semiconductor manufacturing limited figure 16. typical applications of az1084c typical application az1084c- adj v in v out adj v in r2 v in az1084 c-5.0 v in v out gnd v out v out r1 v out =v ref * (1+r2 /r1) + i adj * r2 150 150 22 f 10 f 22 f 10 f
data sheet 13 bcd semiconductor manufacturing limited 5a low dropout linear regulator az1084c jan. 2013 rev. 1. 7 mechanical dimensions to-263-3 unit: mm(inch) 7 3 7 8 . 6 4 0 ( 0 . 3 4 0 ) 9 . 6 5 0 ( 0 . 3 8 0 ) 0.990(0.039) 0.510(0.020) 2.540(0.100) 1.150(0.045) 9.650(0.380) 3 1 4 . 7 6 0 ( 0 . 5 8 1 ) 8.840(0.348) 2.640(0.104) 0.020(0.001) 8 2 0 6 0.380(0.015) 2 . 3 9 0 ( 0 . 0 9 4 ) 0.360(0.014) 2 . 2 0 0 ( 0 . 0 8 7 ) 7 0 10.290(0.405) 4 . 0 7 0 ( 0 . 1 6 0 ) 4 . 8 2 0 ( 0 . 1 9 0 ) 1.390(0.055) 1.150(0.045) 1.390(0.055) 2.540(0.100) 1.270(0.050) 1.390(0.055) 2 . 6 9 0 ( 0 . 1 0 6 ) 1 5 . 7 4 0 ( 0 . 6 2 0 ) 0.250(0.010) 2.700(0.106) 0.400(0.016) 5 . 6 0 0 ( 0 . 2 2 0 ) 7.420(0.292) 7.980(0.314) 2.540(0.100) 2.540(0.100)
5a low dropout linear regulator az1084c data sheet 14 jan. 2013 rev. 1. 7 bcd semiconductor manufacturing limited mechanical dimens ions (continued) to-263-2 unit: mm(inch) 7 3 7 8 . 6 4 0 ( 0 . 3 4 0 ) 9 . 6 5 0 ( 0 . 3 8 0 ) 0.990(0.039) 0.510(0.020) 2.540(0.100) 1.150(0.045) 9.650(0.380) 3 1 4 . 7 6 0 ( 0 . 5 8 1 ) 8.840(0.348) 2.640(0.104) 0.020(0.001) 8 2 0 6 0.380(0.015) 2 . 3 9 0 ( 0 . 0 9 4 ) 0.360(0.014) 2 . 2 0 0 ( 0 . 0 8 7 ) 7 0 10.290(0.405) 4 . 0 7 0 ( 0 . 1 6 0 ) 4 . 8 2 0 ( 0 . 1 9 0 ) 1.390(0.055) 1.150(0.045) 1.390(0.055) 2.540(0.100) 1.270(0.050) 1.390(0.055) 2 . 6 9 0 ( 0 . 1 0 6 ) 1 5 . 7 4 0 ( 0 . 6 2 0 ) 0.250(0.010) 2.700(0.106) 0.400(0.016) 5 . 6 0 0 ( 0 . 2 2 0 ) 7.420(0.292) 7.980(0.314) 2.540(0.100) 2.540(0.100) 1.500(0.059)
data sheet 15 bcd semiconductor manufacturing limited 5a low dropout linear regulator az1084c jan. 2013 rev. 1. 7 mechanical dimens ions (continued) to-252-2 (3) unit: mm(inch) 1.290.1 2.900ref 1 .400(0.05 5 ) 1 .700(0.06 7 ) 0.470(0.019) 0.600(0.024) 5 9 0 8 9.800(0.386) 10.400(0.409) 2.200(0. 087) 2.380(0.094) 0.900(0. 035) 1.100(0.043) 4.700ref 6.500(0. 256) 6.700(0. 264) 5.130(0.202) 5.460(0.215) 0.150(0.006) 0.750(0.030) 6.000(0.236 ) 6.200(0.244 ) 0.720(0.028) 0.850(0.033) 2.286(0. 090) bsc 0.720(0.028) 0.900(0. 035) 0.900(0.035) 1.250(0.049) 1.800ref 8 0 0.600(0. 0 24) 1.000(0.039) 7 3 9 5 5.250ref option 1 option 2
5a low dropout linear regulator az1084c data sheet 16 jan. 2013 rev. 1. 7 bcd semiconductor manufacturing limited mechanical dimens ions (continued) to-252-2 (4) unit: mm(inch) 5.460(0.215) 4.960(0.195) 6.350(0.250) 6.730(0.265) 1.200.05 1.900(0.075) 1.700(0.067) 6.220(0.245) 5.970(0.235) 1.270(0.050) 0.890(0.035) 1.492(0.059) 1.145(0.045) 1.010(0.040) 1.124(0.044) 0.765(0.030) 2.290(0.090) 0.640(0.025) 0.884(0.035) max bsc 10.340(0.407) 9.940(0.391) 0.600(0.024) 0.460(0.018) 2.380(0.094) 2.180(0.086) 4.320(0.170) min min 5.210(0.205) 15 0 3 3 0.780(0.031) 0.650(0.026) 0.884(0.035) 0.640(0.025) 0.460(0.018) 0.610(0.024) 0.410(0.016) 0.560(0.022) detail a 2.160(0.085) min base metal plating section b-b 0.020(0.001) 0.120(0.005) 2.740(0.108) 1.500(0.059) ref 1.780(0.070) 0 10 seating plane gauge plane b b
important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing co., ltd. 800 yi shan road, shanghai 200233, china tel: +86-21-6485 1491, fax: +86-21-5450 0008 main site regional sales office shenzhen office shanghai sim-bcd semiconductor manuf acturing co., ltd., shenzhen office unit a room 1203, skyworth bldg., gaoxin ave.1.s., nanshan district, shenzhen, china tel: +86-755-8826 7951 fax: +86-755-8826 7865 taiwan office bcd semiconductor (taiwan) company limited 4f, 298-1, rui guang road, nei-hu district, taipei, taiwan tel: +886-2-2656 2808 fax: +886-2-2656 2806 usa office bcd semiconductor corp. 30920 huntwood ave. hayward, ca 94544, usa tel : +1-510-324-2988 fax: +1-510-324-2788 - headquarters bcd semiconductor manufacturing limited no. 1600, zi xing road, shanghai zizhu sc ience-based industrial park, 200241, china tel: +86-21-24162266, fax: +86-21-24162277 bcd semiconductor manufacturing limited important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing limited 800, yi shan road, shanghai 200233, china tel: +86-21-6485 1491, fax: +86-21-5450 0008 bcd semiconductor manufacturing limited main site regional sales office shenzhen office shanghai sim-bcd semiconductor manuf acturing co., ltd. shenzhen office advanced analog circuits (shanghai) corporation shenzhen office room e, 5f, noble center, no.1006, 3rd fuzhong road, futian district, shenzhen 518026, china tel: +86-755-8826 7951 fax: +86-755-8826 7865 taiwan office bcd semiconductor (taiwan) company limited 4f, 298-1, rui guang road, nei-hu district, taipei, taiwan tel: +886-2-2656 2808 fax: +886-2-2656 2806 usa office bcd semiconductor corporation 30920 huntwood ave. hayward, ca 94544, u.s.a tel : +1-510-324-2988 fax: +1-510-324-2788 - ic design group advanced analog circuits (shanghai) corporation 8f, zone b, 900, yi shan road, shanghai 200233, china tel: +86-21-6495 9539, fax: +86-21-6485 9673 bcd semiconductor manufacturing limited http://www.bcdsemi.com bcd semiconductor manufacturing limited

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