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ace 50 9 low noise, fast response 500ma ldo regulator ver 1. 4 1 d escription 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 ac curacy voltage reference, error amplifier, current limit circuit and output driver module with discharge capability. ace509 has excellent load and line transient response and good temperature characteristics, which can assure the stability of chip and powe r system. and it uses trimming technique to guarantee output voltage accuracy within2%. features ? low power consumption: 75ua typ. ? low output noise ( 4 7uvrms) ? standby mode: 0.1ua ? low dropout voltage: 0.46v@500ma (typ.) ? high ripple rejection: 66db@100hz (t yp.) ? low temperature coefficient: 100ppm/ ? c ? excellent line regulation: 0.05%/v ? build - in chip enable and discharge circuit ? output voltage range: 1. 2 v~4.5v (customized on command every 0.1v step) ? highly accurate: 2% ( 1% customized) ? output current limit a pplication ? 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: ace50 9 - 2 .8v output i load (ma)
ace 50 9 low noise, fast response 500ma ldo regulator ver 1. 4 2 absolute maximum ratings p arameter s ymbol m ax u nit input v oltage 1 2 v output current 500 ma power dissipation sot - 23 - 5 sot - 23 - 3 sot - 89 - 3 sot - 89 - 5 to - 92 2 50 2 5 0 500 50mw for normal application 800mw wit h 10mm*20mm heat dissipation coil 500 mw j unction 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 - 5 sot - 89 - 3 to - 92 5 4 3 5 4 1 2 3 1 2 1 2 3 1 2 3 1 2 3 sot - 23 - 5 sot - 23 - 3 sot - 89 - 5 sot - 89 - 3 to - 92 d e s c r i p t i o n function 5 2 5 3 3 v out output pin 1 3 4 2 1 v dd input pin 2 1 2 1 2 v ss ground pin 3 3 ce chip enable pin 4 1 nc no connection ordering information ace 50 9 xx xx + h bn: sot - 23 - 5 bm : sot - 23 - 3 a n : sot - 89 - 5 am b : sot - 89 - 3 ep: to - 92 output voltage
ace 50 9 low noise, fast response 500ma ldo regulator ver 1. 4 3 block diagram re commended work conditions item min max unit input voltage range 10 v ambient temper ature - 40 85 electrical characteristics (test conditions: cin=1uf, cout= 3.4 uf,t a =25 , unless otherwise specified.) ace50 9 , for arbitrary output voltage symbol parameter conditions min typ max units vin input voltage 10 v vout output voltage vout> 1.5v vin=set vout+1v 1maiout30ma 1 dropout voltage,vout2.8v vin?vout 2.8vvin8v 1maiout500ma
ace 50 9 low noise, fast response 500ma ldo regulator ver 1. 4 4 vout/ t?vout output voltage temperature coefficiency iout=30ma 100 ppm/ ? c 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 p ull 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 vdrop=vin1 - (vout2*0.98) vout2 is the output voltage when vin=vout1+1.0v and iout=300ma or iout=500ma. vin1 is the input voltage at which the output voltage becomes 98% of vo ut1 after gradually decreasing the input voltage. typical application circuit ce in ace509 v dd v out out + cap gnd + cap note : input capacitor (cin=1uf) and output capacitor (cout= 1 uf/ 2.2 uf) are recommended in all application circuit. explanation ace509 series is a group of positi ve 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 am plifier, current limit circuit and output driver module. ace509 has excellent load and line transient response and good temperature characteristics, which can assure the stability of chip and power system. and it uses trimming technique to guarantee outpu t voltage accuracy within2%.
ace 50 9 low noise, fast response 500ma ldo regulator ver 1. 4 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
ace 50 9 low noise, fast response 500ma ldo regulator ver 1. 4 6 6.load transient response 7.startup response 8 . shutdown response
ace 50 9 low noise, fast response 500ma ldo regulator ver 1. 4 7 packing information sot - 23 - 5
ace 50 9 low noise, fast response 500ma ldo regulator ver 1. 4 8 packing information sot - 23 - 3
ace 50 9 low noise, fast response 500ma ldo regulator ver 1. 4 9 packing information sot - 89 - 3
ace 50 9 low noise, fast response 500ma ldo regulator ver 1. 4 10 packing information sot - 89 - 5
ace 50 9 low noise, fast response 500ma ldo regulator ver 1. 4 11 packing information to - 92
ace 50 9 low noise, fast response 500ma ldo regulator ver 1. 4 12 notes ace does not assume any responsibility for use as critical 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 reason ably 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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