ace 505 low noise 150ma ldo regulator ver 1. 4 1 d escription ace505 series is a group of positive voltage output, low power consumption, low dropout voltage regulator. ace505 can provide output value in the range of 1.2v~5.0v every 0.1v step. it also can be customized on command. ace505 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. ace505 has excellent load and line transient response and good temperature characteristics, which can assure the stability of chip and power system. and it uses t rimming technique to guarantee output voltage accuracy within 2%. features ? low power consumption: 25ua typ. ? low output noise (27uvrms) ? standby mode: 0.1ua ? low dropout voltage: 0.2v@100ma (typ.) ? high ripple rejection: 65db @1khz (typ.) ? low temperature coefficient: 100ppm/ ? c ? excellent line regulation: 0.05%/v ? build - in chip enable circuit ? output voltage range: 1.2v~5.0v (customized on command every 0.1v step) ? highly accurate: 2% (1% customized) ? output current limit applic ation ? 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: ace505 - 1.8v outpu t output current iout (ma)
ace 505 low noise 150ma ldo r egulator ver 1. 4 2 absolute maximum ratings p arameter s ymbol m ax u nit input v oltage 10 v output current 200 ma power dissipation sot - 23 - 5 sc - 70 - 5 2 5 0 2 5 0 mw operating j unction temperature t j 125 o c storage temperatu re t s - 45 to 150 o c packaging type s c - 70 - 5 / sot - 23 - 5 5 4 1 2 3 sc - 70 - 5 sot - 23 - 5(a) sot - 23 - 5(b) description function 5 5 1 v out output pin 1 1 3 v dd input pin 2 2 2 gnd ground pin 3 3 4 ce chip enable pin 4 4 5 nc no connection ordering information ace 50 5 xx xx + h qm : sc - 70 - 5 bna : sot - 23 - 5(a) bnb: sot - 23 - 5(b) output voltage
ace 505 low noise 150ma ldo r egulator ver 1. 4 3 block diagram re commended work conditions item min max unit input voltage range 8 v ambient temperature - 40 85 elec trical characteristics (test conditions: cin=1uf, cout= 2.2 uf,t a =25 , unless otherwise specified.) ace505, for arbitrary output voltage symbol parameter conditions min typ max unit s vin input voltage 1.8 8 v vout output voltage vout>1.5v vin=set vout+1v 1ma iout 30ma vout x0.98 vout x1.02 v vout<=1.5v vout - 0.03 vout+0.03 iout (max.) maximun output current vin - vout=1v 150 ma dropout voltage input - output voltage differentia refer to the e lectrical c haracteristics by o utput v oltage vout / vin? vout line regulation iout=40ma 1.6vvin8v 0.05 0.2 %/v vout / iout load regulation vin=set vout+1v 1maiout80ma 12 40 mv iss supply current vin=set vout+1v 25 50 ua istandby supply current (srandby) vin=set vout+1v vce=gnd 0.1 1.0 u a
ace 505 low noise 150ma ldo r egulator ver 1. 4 4 vout/ t ? vout output voltage temperature coefficiency iout=30ma 100 ppm / ? c psrr ripple rejection f=1khz, ripple=0.5vp - p vin=set vout+1v 6 5 db ilim short current limit vout=0v 20 m a 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 27 uvr ms electrical characteristics by output voltage output voltage vout (v) dropout voltage, v dif (v) condition typ. max. vout =1.5v iout = 120ma 0.38 0.70 vout = 1.6 v 0.36 0.65 vout = 1.7v 0.34 0.60 1.8 ? vout ? 2.0 0.32 0.55 2.1 ? vout ? 2.7 0.28 0.50 2.8 ? vout ? 4.0 0.22 0.35 typical application circuit ce in ace505 v dd v out out + cap gnd + cap application hints: n ote : input capacitor (cin=1uf) and output capacitor (cout=1uf/2.2uf) are recomme nded in all application circuit .
ace 505 low noise 150ma ldo r egulator ver 1. 4 5 typical performance characteristics 1.output voltage vs. output current 2.output voltage vs. input voltage (with output short protection) ace505 - 1.8v ace505 - 1.8v output current iout (ma) input voltage vin(v) 3.droput voltage vs. output current 4.supply current vs. input voltage output current iout (ma) input voltage vin(v)
ace 505 low noise 150ma ldo r egulator ver 1. 4 6 5.ripple rejection vs. frequency 6.line transient response frequency f(khz) 7.load transient response
ace 505 low noise 150ma ldo r egulator ver 1. 4 7 packing information sc - 70 - 5
ace 505 low noise 150ma ldo r egulator ver 1. 4 8 packing information sot - 23 - 5
ace 505 low noise 150ma ldo r egulator ver 1. 4 9 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 reasonably expected to cause the failure of the life support device or system, or to affect its safety o r effectiveness. ace technology co., ltd. http://www.ace - ele.com/
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