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? ??????????????????????????????????????????????????????????????? ????????????????????????? ACE509 ??????????????????????? technology low noise, fast response 500ma ldo regulator ver 1.2 1 ? description ACE509 series is a group of positive voltage output, low power consumption, low dropout voltage regulator. ACE509 can provide output value in the range of 1.2v ~4.5v every 0.1v step. it also can be customized on command. ACE509 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module with discharge capability. ACE509 has excellent load and line transient respons e and good temperature characteristics, which can assure the stability of chip and power system. and it uses trimming technique to guarantee output voltage accuracy within2%. features ? low power consumption: 75ua typ. ? low output noise (47uvrms) ? standby mode: 0.1ua ? low dropout voltage: 0.46v@500ma (typ.) ? high ripple rejection: 66db@100hz (typ.) ? low temperature coefficient: 100ppm/ c ? excellent line regulation: 0.05%/v ? build-in chip enable and discharge circuit ? output voltage range: 1.2v~4.5v (customized on command every 0.1v step) ? highly accurate: 2% ( 1% customized) ? output current limit application ? power source for cellular phones and various kind of pcss ? battery powered equipment ? power management of mp3, pda, dsc, mouse, ps2 games ?? ? reference voltage source ? regulation after switching power ? typical performance characteristic: ACE509-2.8v output i load (ma)
? ??????????????????????????????????????????????????????????????? ????????????????????????? ACE509 ??????????????????????? technology low noise, fast response 500ma ldo regulator ver 1.2 2 absolute maximum ratings parameter symbol max unit input voltage 10 v output current 500 ma power dissipation sot-23-5 sot-23-3 sot-89-3 to-92 250 200 500 350 mw junction temperature t j 125 o c storage temperature t s - 45 to 150 o c packaging type sot-23-5 sot-23-3 sot-89-3 to-92 5 4 3 1 2 3 1 2 1 2 3 1 2 3 pin sot-23-5 sot-23-3 sot-89-3(a) sot-89-3(b) to-92 function v out ? 5 2 1 3 3 output pin v dd ? 1 3 3 2 1 input pin v ss ? 2 1 2 1 2 ground pin ce ? 3 chip enable pin nc ? 4 no connection ordering information selection guide ACE509 xx xx + h bn: sot-23-5 bm: sot-23-3 ama: sot-89-3a amb: sot-89-3b ep: to-92 output voltage ? 1.2v/1.5v?..4.5v pb - free halogen - free
? ??????????????????????????????????????????????????????????????? ????????????????????????? ACE509 ??????????????????????? technology low noise, fast response 500ma ldo regulator ver 1.2 3 block diagram recommended work conditions item min recommended max unit input voltage range 8 v ambient temperature -40 85 electrical characteristics (test conditions: cin=1uf, cout=3.4uf,t a =25 , unless otherwise specified.) ACE509, for arbitrary output voltage symbol parameter conditions min typ max units vin input voltage 8 v vout output voltage vin=set vout+1v 1ma iout 30ma vout x0.98 vout1 vout x1.02 v iout (max.) maximun output current vin-vout=1v 500 ma iout=100ma 88 120 mv iout=300ma 270 350 mv vdrop 1 dropout voltage,vout 2.8v iout=500ma 460 600 mv vout/ vinvout line regulation iout=40ma 2.8v vin 8v 0.05 0.2 %/v vout/ iout load regulation vin=set vout+1v 1ma iout 500ma 20 40 mv iss supply current vin=set vout+1v 75 90 ua istandby supply current (srandby) vin=set vout+1v vce=gnd 0.1 1.0 ua vout/ tvout output voltage temperature coefficiency iout=30ma 100 ppm/ c
? ??????????????????????????????????????????????????????????????? ????????????????????????? ACE509 ??????????????????????? technology low noise, fast response 500ma ldo regulator ver 1.2 4 psrr ripple rejection f=100hz, ripple=0.5vp-p vin=set vout+1v 65 db ilim short current limit vout=0v 200 ma rpd ce pull down resistance 2.0 5.0 10.0 m vceh ce input voltage ?h? 1.5 vin v vcel ce input voltage ?l? 0 0.25 v en output noise bw=10hz~100khz 47 uvrms vdrop=vin1-(vout2*0.98) vout2 is the output voltage when vin=vout1+1.0v and i out=300ma or iout=500ma. vin1 is the input voltage at which the output voltage bec omes 98% of vout1 after gradually decreasing the input voltage. typical application circuit ce in ACE509 v dd v out out + cap gnd + cap application hints: note1:input capacitor (cin=1uf) is recommended in all application circuit. note2:output capacitor (cout=3.3uf/4.7uf) is recommended in all application to assure the stability of circuit. explanation ACE509 series is a group of positive voltage output, low noise, low power consumption, low dropout voltage regulator. ACE509 can provide output value in the range of 1.2v ~4.5v every 0.1v step. it also can be customized on command. ACE509 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. ACE509 has excellent load and line transient respons e and good temperature characteristics, which can assure the stability of chip and power system. and it uses trimming technique to guarantee output voltage accuracy within2%.
? ??????????????????????????????????????????????????????????????? ????????????????????????? ACE509 ??????????????????????? technology low noise, fast response 500ma ldo regulator ver 1.2 5 typical performance characteristics 1.output voltage vs. output current 2.output voltage vs. input voltage (with output short protection) i load(ma) vin(v) 3.droput voltage vs. output current 4.ripple rejection vs. frequency i load(ma) freq(khz) 5.line transient response ? ?
? ??????????????????????????????????????????????????????????????? ????????????????????????? ACE509 ??????????????????????? technology low noise, fast response 500ma ldo regulator ver 1.2 6 6.load transient response 7.startup response 8.shutdown response ?
? ??????????????????????????????????????????????????????????????? ????????????????????????? ACE509 ??????????????????????? technology low noise, fast response 500ma ldo regulator ver 1.2 7 packing information sot-23-5
? ??????????????????????????????????????????????????????????????? ????????????????????????? ACE509 ??????????????????????? technology low noise, fast response 500ma ldo regulator ver 1.2 8 packing information sot-23-3
? ??????????????????????????????????????????????????????????????? ????????????????????????? ACE509 ??????????????????????? technology low noise, fast response 500ma ldo regulator ver 1.2 9 packing information sot-89-3
? ??????????????????????????????????????????????????????????????? ????????????????????????? ACE509 ??????????????????????? technology low noise, fast response 500ma ldo regulator ver 1.2 10 packing information to-92
? ??????????????????????????????????????????????????????????????? ????????????????????????? ACE509 ??????????????????????? technology low noise, fast response 500ma ldo regulator ver 1.2 11 notes ace does not assume any responsibility for use as cr itical components in life support devices or systems without the express written approval of the president and general counsel of ace electronics co., ltd. as sued herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and shoes failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. a critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. ace technology co., ltd. http://www.ace-ele.com/

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