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3-terminal 1a adjustable voltage regulator az317 data sheet 1 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited general description the az317 is an adjustable three-terminal positive voltage regulator with a very low dropout of 1.2v at 1a output current. using 2 external resistors, the az317 can provide an adjustable output voltage down to 1.25v. the az317 includes a circuit of trimmed bandgap ref- erence to assure output volta ge accuracy to be within 1%. it also provides current limiting and thermal shut- down. the current limit is trimmed to ensure specified output current and controlled short-circuit current. the on-chip thermal limiting provides protection against any combination of overload and ambient temperature that would create excessive junction temperature. the az317 is available in the standard sot-223, to- 220-3, to-252-2 (1) and to-263-3 power packages. features typical 1% output voltage tolerance typical 0.01%/v line regulation typical 0.2% load regulation very low dropout voltage: 1.2v at 1a output current trimmed current limit on-chip thermal protection operation junction temperature: 0 to 125 o c applications pc motherboard lcd monitor graphic card dvd player network interface card/switch telecom equipment printer and other peripheral equipment figure 1. package types of az317 sot-223 to-220-3 to-252-2 (1) to-263-3
3-terminal 1a adjustable voltage regulator az317 data sheet 2 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited h package (sot-223) t package (to-220-3) (to-252-2(1)) d package pin configuration functional block diagram figure 3. functional block diagram of az317 input output adj v out figure 2. pin configuration of az317 (top view) 1 2 3 input output adj v out 1 2 3 input output adj input output adj v out 1 2 3 thermal shutdown + + _ current limiter s package (to-263-3) input output adj 1 2 3 1 2 3
3-terminal 1a adjustable voltage regulator az317 data sheet 3 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited package tempera- ture range part number marking id packing type tin lead lead free tin lead lead free sot-223 0 to 125 o c az317htr az317htr-e1 317h eh31a tape & reel to-220-3 0 to 125 o c az317t az317t-e1 az317t az317t-e1 tube to-252-2 (1) 0 to 125 o c az317d AZ317D-E1 az317d AZ317D-E1 tube az317dtr az317dtr-e1 az317d AZ317D-E1 tape & reel to-263-3 0 to 125 o c az317s az317s-e1 az317s az317s-e1 tube az317str az317str-e1 az317s az317s-e1 tape & reel circuit type package h: sot-223 e1: lead free blank: tin lead az317 - tr: tape and reel blank: tube t: to-220-3 d: to-252-2 (1) s: to-263-3 bcd semiconductor's pb-free products, as designated with "e1" suffix in th e part number, are rohs compliant. ordering information
3-terminal 1a adjustable voltage regulator az317 data sheet 4 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited parameter symbol min max unit input voltage v in v out +2 15 v operating junction temperature range t j 0 125 o c recommended operating conditions note1: stresses greater than those listed under "absolut e maximum ratings" may cause permanent damage to the device. these are stress ratings only, and functional operation 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 may affect device reliability. parameter symbol min max unit input voltage v in 20 v maximum junction temperature t j 150 o c storage temperature t s -65 150 o c lead temperature (soldering, 10sec) t lead 300 o c esd (human body model) esd 4000 v absolute maximum ratings (note 1)
3-terminal 1a adjustable voltage regulator az317 data sheet 5 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited parameter symbol conditions min typ max unit reference voltage v ref 10ma i out 1a, 3v (v in -v out ) 10v 1.20 1.25 1.30 v line regulation s v i out 20ma, 3v v in -v out 10v 0.01 0.04 %/v load regulation si v in -v out = 2v, 10ma i out 1a 0.2 0.4 % thermal regulation 20ms pulse 0.04 0.07 %/w dropout voltage ? v i out = 1a 1.2 1.3 v current limit i limit (v in -v out ) = 2v 1.2 1.5 1.8 a adjust pin current 50 100 a adjust pin current change 1.4v ( v in -v out ) 10v, 10ma i out 1a 0.2 5 a minimum load current 3v (v in -v out ) 15v 3.5 10 ma ripple rejection f =120hz, c out =1 f tantalum, (v in -v out ) = 3v, i out =1a 60 75 db temperature stability 1% long -term stability t a =125 o c, 1000hrs 0.3 % rms output noise (% of v out ) t a =25 o c, 10hz f 10khz 0.003 % thermal resistance, junction to case sot-223 to-252 to-220 to-263 15 10 4.5 4 o c/w thermal shutdown junc tion temperature 150 o c thermal shutdown hysteresis 25 o c (typicals and limits apply for t j =25 o c, p maximum power dissipation unless otherwise specified.)(note 2) note 2: maximum power di ssipation is package type and case temp erature dependent. pl ease see figure 12. electrical characteristics
3-terminal 1a adjustable voltage regulator az317 data sheet 6 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited typical performance characteristics figure 5. dropout voltage vs. output current figure 6. load regulation vs. temperature figure 7. reference voltage vs. temperature figure 8. output voltage vs. temperature 0255075100125 3.10 3.15 3.20 3.25 3.30 3.35 3.40 v out =3.3v i out =30ma output voltage (v) ambient temperature ( o c) 0.2 0.4 0.6 0.8 1.0 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 t a =120 o c t a =25 o c t a =0 o c dropout voltage (v) output current (a) 0 20406080100120 -0.2 0.0 0.2 0.4 0.6 0.8 v out =3.3v output voltage deviation (%) ambient temperature ( o c) 0255075100125 1.210 1.215 1.220 1.225 1.230 1.235 1.240 1.245 1.250 1.255 1.260 v out =3.3v i out =30ma reference voltage (v) ambient temparature ( o c)
3-terminal 1a adjustable voltage regulator az317 data sheet 7 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited figure 9. minimum load current vs. temperature figure 11. short-circuit current vs. temperature figure 12. maximum power dissipation typical performance ch aracteristics (continued) 25 50 75 100 125 0.0 2.5 5.0 7.5 10.0 sot- 223 power (w) case temperature ( o c) figure 10. adjust pin current vs. temperature 0 25 50 75 100 125 1.00 1.25 1.50 1.75 2.00 short-circuit current (a) junction temperature ( o c) 0 25 50 75 100 125 0 1 2 3 4 5 v out =3.3v minimum load current (ma) ambient temperature ( o c) 0 25 50 75 100 125 0 10 20 30 40 50 60 70 80 90 100 v out =3.3v i out =30ma adjust pin current ( a) ambient temperature( o c)
3-terminal 1a adjustable voltage regulator az317 data sheet 8 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited typical performance ch aracteristics (continued) figure 13. ripple rejection vs. frequency figure 14. line transient response figure 15. load transient response 10 100 1k 10k 100k 20 30 40 50 60 70 v in =8.3v v out =3.3v ripple rejection (db) frequency (hz) line_transient_response v in =4.8v, v out =3.33v, c in =1 c out 5"/
v out v in =5.8v v in =4.8v v in =4.8v, v out =3.33v, c in =c out 5"/
preload=0.1a line_transient_response v out i out =0.5a i out =0.1a
3-terminal 1a adjustable voltage regulator az317 data sheet 9 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited typical application figure 4. typical application of az317 v out = v ref x (1+r2/r1) + i adj x r2 since i adj is controlled to less than 100 a, the error associated with this term is negligible in most applications. * = c in is required if the regulator is located near power supply filter. **= c o is needed for stability and it improves transient response. az317 output input adj + + * c in 0.1 f ** c o 1.0 f v in v out r1 240 ? r2
3-terminal 1a adjustable voltage regulator az317 data sheet 10 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited mechanical dimensions sot-223 unit: mm(inch) 3.300(0.130) 3.700(0.146) 6.700(0.264) 7.300(0.287) 2.900(0.114) 3.100(0.122) 0.610(0.024) 0.810(0.032) 2.300(0.091) typ 6.300(0.248) 6.700(0.264) 1.750(0.069) typ 4.500(0.177) 4.700(0.185) 0.020(0.001) 0.100(0.004) 1.520(0.060) 1.800(0.071) 1.500(0.059) 1.700(0.067) 0 . 2 5 0 ( 0 . 0 1 0 ) 0 . 3 5 0 ( 0 . 0 1 4 ) 0.250(0.010) 0 10 0.900(0.035) min
3-terminal 1a adjustable voltage regulator az317 data sheet 11 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited mechanical dimens ions (continued) to-220-3 unit: mm(inch) 9 3.560(0.140) 1 4 . 2 3 0 ( 0 . 5 6 0 ) 1.160(0.046) 0.813(0.032) 8 . 7 6 3 ( 0 . 3 4 5 ) 2.540(0.100) 0.356(0.014) 2.080(0.082) 3 7 3.560(0.140) 7 9.660(0.380) 0.550(0.022) 60 0.381(0.015) 2 . 5 8 0 ( 0 . 1 0 2 ) 6 0 8 . 5 2 0 ( 0 . 3 3 5 ) 9 1.500(0.059) 0.200(0.008) 1 . 8 5 0 ( 0 . 0 7 3 ) 2.540(0.100) 0.381(0.015) 0.406(0.016) 3 . 3 8 0 ( 0 . 1 3 3 ) 10.660(0.420) 4.060(0.160) 1.350(0.053) 2 7 . 8 8 0 ( 1 . 0 9 8 ) 3 0 . 2 8 0 ( 1 . 1 9 2 ) 9 . 5 2 0 ( 0 . 3 7 5 ) 1 6 . 5 1 0 ( 0 . 6 5 0 ) 4.820(0.190) 2.880(0.113) 1.760(0.069)
3-terminal 1a adjustable voltage regulator az317 data sheet 12 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited mechanical dimens ions (continued) unit: mm(inch) to-252-2(1) 1.350(0.053) 1.650(0.065) 0.600(0.024) 0.900(0.035) 4.500(0.177) 4.700(0.165) 3 4 3.800ref(0.150ref) 4.800(0.189) 6.500(0.256) 4.300(0.169) 5.400(0.212) 1.400(0.055) 1.780(0.070) 0.000(0.000) 0.127(0.005) 0.430(0.017) 0.580(0.023) 2.300typ 9.500(0.374) 9.900(0.390) 0.700(0.028) 0.900(0.035) 0.500(0.020) 0.700(0.028) 5.200(0.205) 5.400(0.213) 6.350(0.250) 6.650(0.262) 2.550(0.100) 2.900(0.114) 5.400(0.213) 5.700(0.224) 2.200(0.087) 2.400(0.094) 5 5 8 0.430(0.017) 0.580(0.023)
3-terminal 1a adjustable voltage regulator az317 data sheet 13 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited mechanical dimens ions (continued) 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)
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

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