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150khz 3a buck dc-dc converter ap3003 data sheet 1 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited general description the ap3003 series of regulators are fixed frequency pwm buck (step-down) dc/dc converter, capable of driving a 3a load with exce llent line and load regula- tion. these regulators incl ude internal frequency com- pensation and a fixed frequency oscillator so that they are easy to use. a system adopting ap3003 requires a minimum number of external components to work. a standard series of induct ors, optimized for use with the ap3003 series, are available from several manu- facturers. this feature great ly simplifies the design of switch-mode power supplies. these ics are available in to-220-5 and to-263-5 packages. features 3.3v, 5v, 12v fixed ( 4% tolerance) and adjust- able ( 3% tolerance) output versions guaranteed 3a output load current 150khz fixed frequency internal oscillator input voltage range up to 32v requires only 4 external components high efficiency up to 90% excellent line an d load regulation ttl shutdown capability low power standby mode, i q typically 80 a built-in current limit protection and thermal shutdown circuit applications lcd monitor and lcd tv on-card dc-dc converter dvd recorder pdp figure 1. package types of ap3003 to-220-5 to-263-5
150khz 3a buck dc-dc converter ap3003 data sheet 2 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited figure 2. pin configuratio n of ap3003 (top view) pin description pin number pin name function 1v in unregulated input voltage 2 output switch driver output 3 gnd ground 4 feedback feedback pin. for fixed version, connec t it to system output. for adjustable version, connect it with an external resistor and ca pacitor feedback network to program the sys- tem output voltage 5on /off the ttl logic compatible input to control the regulator on or off pin configuration t package (to-220-5) on /off feedback gnd output v in s package (to-263-5) on /off feedback gnd output v in 5 4 3 2 1 5 4 3 2 1 metal tab gnd metal tab gnd
150khz 3a buck dc-dc converter ap3003 data sheet 3 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited functional block diagram figure 3. functional block diagram of ap3003 on /off feedback v in output gnd + _ + _ + _ + _ start up 2.5v regulator 1.23v reference latch 150khz osc driver & inv thermal shutdown ea comp comp comp 2.5v bias current frequency shift 220 mv 200 mv 1:100 r2 r1 1 2 3 4 5 r1=2.49k ? r2=4.18k ? r1=2.49k ? r2=7.57k ? r1=2.49k ? r2=21.8k ? for 3.3v 5v 12v adj 4.4 ? r1=open r2=0 ?
150khz 3a buck dc-dc converter ap3003 data sheet 4 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited ordering information circuit type package t: to-220-5 adj: adjustable output 3.3: fixed output 3.3v 5.0: fixed output 5.0v e1: lead free ap3003 - tr: tape and reel blank: tube s: to-263-5 package temperature range part number marking id packing type lead free green lead free green to-220-5 -40 to 85 o c ap3003t-adje1 ap3003t-adjg1 ap3003t-adje1 ap3003t-adjg1 tube ap3003t-3.3e1 ap3003t-3.3g1 ap3003t-3.3e1 ap3003t-3.3g1 tube ap3003t-5.0e1 ap3003t-5.0g1 ap3003t-5.0e1 ap3003t-5.0g1 tube ap3003t-12e1 ap3003t-12g1 ap3003t-12e1 ap3003t-12g1 tube to-263-5 -40 to 85 o c ap3003s-adje1 ap3003s-adjg1 ap 3003s-adje1 ap3003s-adjg1 tube AP3003S-ADJTRE1 ap3003s-adjtrg1 ap3003s -adje1 ap3003s-adjg1 tape & reel ap3003s-3.3e1 ap3003s-3.3g1 ap3003s-3.3e1 ap3003s-3.3g1 tube ap3003s-3.3tre1 ap3003s-3.3trg1 ap3003s-3.3e1 ap3003s-3.3g1 tape & reel ap3003s-5.0e1 ap3003s-5.0g1 ap3003s-5.0e1 ap3003s-5.0g1 tube ap3003s-5.0tre1 ap3003s-5.0trg1 ap3003s-5.0e1 ap3003s-5.0g1 tape & reel ap3003s-12e1 ap3003s-12g1 ap 3003s-12e1 ap3003s-12g1 tube ap3003s-12tre1 ap3003s-12trg1 ap3003s -12e1 ap3003s-12g1 tape & reel 12: fixed output 12v g1: green bcd semiconductor's pb-free pr oducts, as designated with "e1" suffix in the part number, are rohs compliant. products with "g1" suffix are available in green packages.
150khz 3a buck dc-dc converter ap3003 data sheet 5 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited parameter symbol value unit input voltage v in 40 v on /off pin voltage v on /off 40 v feedback pin voltage v fb 40 v operating junction temperature t j 150 o c thermal resistance (junction to ambient, no heatsink) to-220-5 r ja 60 o c/w to-263-5 lead temperature (soldering, 10sec) t lead 260 o c storage temperature range t stg -65 to 150 o c 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 operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. exposure to "absolute max- imum ratings" for extended periods may affect device reliability. parameter symbol value unit maximum input voltage (note 2) 3.3v v in 32 v 5.0v 32 12v 32 adj (v out =3.2v) 32 adj (v out =2.5v) 25 operating junction temperature t j -40 to 125 o c recommended operating conditions absolute maximum ratings (note 1) note 2: for adj version, the recommended supply voltage depends on the needed output voltage.
150khz 3a buck dc-dc converter ap3003 data sheet 6 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited electrical characteristics parameter symbol conditions min typ max unit output voltage v out 5.5v v in 32v, 0.2a i load 3a 3.168 3.135 3.3 3.432 3.465 v efficiency v in =12v, i load =3a 75 % for 3.3v output voltage version unless otherwise specified, t j =25 o c . the specifications with boldface type apply over full operating junction temperature range. parameter symbol conditions min typ max unit output voltage v out 7v v in 32v, 0.2a i load 3a 4.800 4.750 5 5.200 5.250 v efficiency v in =12v, i load =3a 80 % for 5v output voltage version unless otherwise specified, t j =25 o c . the specifications with boldface type apply over full operating junction temperature range. parameter symbol conditions min typ max unit feedback voltage v fb 4.5v v in 25v, 0.2a i load 3a, v out programmed for 2.5v 1.193 1.18 1.23 1.267 1.28 v efficiency v in =12v, i load =3a, v out =2.5v 73 % for adj output voltage version unless otherwise specified, t j =25 o c . the specifications with boldface type apply over full operating junction temperature range. parameter symbol conditions min typ max unit output voltage v out 15v v in 32v, 0.2a i load 3a 11.52 11.40 12.0 12.48 12.60 v efficiency v in =24v, i load =3a 88 % for 12v output voltage version unless otherwise specified, t j =25 o c . the specifications with boldface type apply over full operating junction temperature range.
150khz 3a buck dc-dc converter ap3003 data sheet 7 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited parameter symbol conditions min typ max unit feedback bias current i fb adjustable version only, v fb =1.3v 10 50 100 na oscillator frequency f (note 3) 127 110 150 173 173 khz saturation voltage v sat i load =3a ( no output devices, v fb =0v) 1.2 1.5 1.6 v maximum duty cycle d max v fb =0v 100 % minimum duty cycle d min v fb =1.3v 0 % current limit i cl peak current , no output devices, v fb =0v 3.6 3.4 4.5 6.9 7.5 a output leakage current i swl output=0v, no output devices, v fb =1.3v, v in =32v 50 a output=-1v, no output devices, v fb =1.3v, v in =32v 2 30 ma quiescent current i q v fb =1.3v 5 10 ma standby quiescent current i stby on /off pin=5v, v in =18v 80 200 250 a on /off pin logic input threshold voltage v il regulator on 0.6 v v ih regulator off 2.0 on /off pin input current i h v pin5 =2.5v (regulator off) 5 15 a i l v pin5 =0.5v (regulator on) 0.02 5 a for all output voltage versions unless otherwise specified , v in =12v for 3.3v, 5v and adjustable version, v in =24v for 12v version, i load =500ma, t j =25 o c . specifications with boldface type apply over full operating junction temperature range. electrical characteristics (continued) note 3: the switching frequency is reduced wh en the second stage curr ent limit is activated. note 4: the specifications with boldf ace are gbd (guaranteed by design ).
150khz 3a buck dc-dc converter ap3003 data sheet 8 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited figure 6. efficiency vs. output current figure 7. efficiency vs. output current typical performance characteristics figure 4. efficiency vs. output current figure 5. efficiency vs. output current 0.00.51.01.52.02.53.03.5 60.0 62.5 65.0 67.5 70.0 72.5 75.0 77.5 80.0 82.5 85.0 87.5 90.0 efficiency (%) output current (a) adj version (v out regulated to 2.5v) v in =10v, t j =25 o c 0.00.51.01.52.02.53.03.5 60.0 62.5 65.0 67.5 70.0 72.5 75.0 77.5 80.0 82.5 85.0 87.5 90.0 efficiency (%) output current (a) 5.0v version v in =12v, t j =25 o c 0.00.51.01.52.02.53.03.5 60.0 62.5 65.0 67.5 70.0 72.5 75.0 77.5 80.0 82.5 85.0 87.5 90.0 efficiency (%) output current (a) 3.3v version v in =12v, t j =25 o c 0.00.51.01.52.02.53.03.5 60.0 62.5 65.0 67.5 70.0 72.5 75.0 77.5 80.0 82.5 85.0 87.5 90.0 efficiency (%) output current (a) 12v version v in =24v,t j =25 o c
150khz 3a buck dc-dc converter ap3003 data sheet 9 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited typical performance ch aracteristics (continued) figure 10. load regulation figure 8. efficiency vs. input voltage figure 9. line regulation 0 4 8 12162024283236 60.0 62.5 65.0 67.5 70.0 72.5 75.0 77.5 80.0 82.5 85.0 87.5 90.0 92.5 i out =3a, t j =25 o c 3.3v version 5.0v version 12v version adj version (v out =2.5v) efficiency (%) input voltage (v) figure 11. switch saturation voltage vs. switch current 0 4 8 12 16 20 24 28 32 36 -0.20 -0.16 -0.12 -0.08 -0.04 0.00 0.04 0.08 0.12 0.16 0.20 output voltage change (%) input voltage (v) v out =5.0v i load =0.1a t j =25 o c 0.00.51.01.52.02.53.03.5 4.95 4.96 4.97 4.98 4.99 5.00 5.01 5.02 5.03 5.04 5.05 output voltage (v) output current (a) v in =12v, v out =5.0v t j =25 o c 0.00.51.01.52.02.53.03.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 switch saturation voltage (v) switch current (a) v in =12v, t j =25 o c
150khz 3a buck dc-dc converter ap3003 data sheet 10 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited typical performance ch aracteristics (continued) figure 14. quiescent current vs. junction temperature figure 12. switch current limit vs. junction temperature f igure 13. quiescent current vs. supply voltage figure 15. shutdown quiescent current vs. input voltage -40-20 0 20406080100120 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.25 5.50 switch current limit (a) junction temperature ( o c) v in =12v 0 5 10 15 20 25 30 35 40 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 quiescent current (ma) supply voltage (v) t j =25 o c v on/off =0, switch off -40-20 0 20406080100120 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.25 5.50 quiescent current (ma) junction temperature ( o c) v in =12v v on/off =0v, switch off 0 4 8 12 16 20 24 28 32 36 0 20 40 60 80 100 120 140 160 180 shutdown quiescent current ( a) supply voltage (v) t j =25 o c v on/off =5v
150khz 3a buck dc-dc converter ap3003 data sheet 11 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited typical performance ch aracteristics (continued) figure 18. switching frequency vs. junction temperature figure 16. on /off threshold voltage figure 17. on /off pin current vs. on /off pin voltage -40-20 0 20406080100120 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 off on on/off voltage (v) junction temperature ( o c) v in =12v 0.0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5 25.0 0 1 2 3 4 5 6 7 8 on/off pin current ( a) on/off pin voltage (v) v in =32v, t j =25 o c -40-20 0 20406080100120 120 124 128 132 136 140 144 148 152 156 160 frequency (khz) junction temperature ( o c) vs. junction temperature
150khz 3a buck dc-dc converter ap3003 data sheet 12 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited figure 20. typical application of ap3003-5.0v figure 19. typical application of ap3003-3.3v l1: sumida cdrh127/ldnp-220mc or equivalent l1: sumida cdrh127/ldnp-220mc or equivalent typical application + + l1 22 h d1 1n5822 c out on/off gnd v in output feedback 220 f c in 47 0 f regulated dc output 3a load ap3003-3.3v 4 2 5 3 1 + + l1 22 h d1 1n5822 c out on/off gnd v in output feedback 220 f c in 470 f 12 v unregulated dc input regulated dc output 3a load ap3003-5.0v 4 2 5 3 1
150khz 3a buck dc-dc converter ap3003 data sheet 13 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited typical application (continued) figure 20. typical application of ap3003-adj figure 19. typical application of ap3003-12v l1: sumida cdrh127/ldnp-220mc or equivalent l1: sumida cdrh127/ldnp-220mc or equivalent + + l1 22 h d1 1n5822 c out on/off gnd v in output feedback 220 f c in 470 f v unregulated dc input regulated dc output 3a load $39 4 2 5 3 1 + + l1 22 h d1 1n5822 c out on/off gnd v in output feedback 220 f c in 470 f 9 8quhjxodwhg '&,qsxw 9 5hjxodwhg '&2xwsxw $/rdg r1 n r2 n ap3003-adj 4 2 5 3 1 c )) 33nf 9 287 55 5
150khz 3a buck dc-dc converter ap3003 data sheet 14 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited mechanical dimensions unit: mm(inch) 2.590(0.102) 2.890(0.114) 4.470(0.176) 4.670(0.184) 8.200(0.323) 8.600(0.339) 6.700(0.264) 6.900(0.272) 13.500(0.531) 13.900(0.547) 11.760(0.463) 12.160(0.479) 1.700(0.067) typ 0.310(0.012) 0.530(0.021) 2.520(0.099) 2.820(0.111) 0.710(0.028) 0.910(0.036) 9.850(0.388) 10.150(0.400) 1.170(0.046) 1.370(0.054) 9 3.790(0.149) 3.890(0.153) to-220-5
150khz 3a buck dc-dc converter ap3003 data sheet 15 aug. 2008 rev. 1. 2 bcd semiconductor manufacturing limited mechanical dimens ions (continued) 5.600 (0.220) ref 9.880 (0.389) 10.180 (0.401) 1.560 (0.061) 1.760 (0.069) 8.200 (0.323) 8.600 (0.339) 5.080 (0.200) 5.480 (0.216) 0.710 (0.028) 0.910 (0.036) 1.700 (0.067) typ 6.700 (0.264) 6.900 (0.272) 15.140 (0.596) 15.540 (0.612) 1.170 (0.046) 1.370 (0.054) 4.470 (0.176) 4.670 (0.184) 0.000 (0.000) 0.150 (0.006) 2.340 (0.092) 2.740 (0.108) 0.310 (0.012) 0.530 (0.021) to-263-5 unit: mm(inch)
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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