ace 515 low noise, fast response 300ma ldo regulator ver 1. 5 1 d escription ace515 series is a group of positive voltage output, low power consumption, low dropout voltage regulator. ace515 can provide output value in the range of 1. 0 v~4.5v every 0.1v step. it also can be customized on command. ace515 includes high ac curacy voltage reference, error amplifier, current limit circuit and output driver module with discharge capability. ace515 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 within 2%. features ? low power consumption: 2 5 ua (typ) ? low output noise (47uvrms) ? standby mode: 0.1ua ? low dropout voltage 0.16v@300ma (typ.) ? high ripple rejection: 73db @100hz (typ.) ? low temperature coefficient: 100ppm/ ? excellent line regulation: 0.05%/v ? build - in chip enable and discharge circuit ? output voltage range: 1. 0 v~4.5v (customized on command every 0.1v step) ? high accurate: 2% ? output current limit application ? power source for cellular phones and various kind o f pcss ? battery powered equipment ? power management of mp3 , pda, dsc , mouse, ps2 games ? reference voltage source ? regulation after switching power typical performance characteristic: load regulation (v out = 4 .5v)
ace 515 low noise, fast response 300ma ldo regulator ver 1. 5 2 absolute maximum ratings p arameter s ymbol m ax u nit max input volta ge v in 8 v power dissipation sot - 23 - 5 sc - 70 - 5 250 250 m w j unction temperature t j 125 o c storage temperature t s - 45 to 150 o c output current 300 ma ambient temperature t a - 40 to 85 o c note: exceed these limits to damage to the device. exposure to absolute maximum rating conditions may affect device reliability. packaging type sot - 23 - 5 sc - 70 - 5 5 4 1 2 3 ord ering information ace 5 15 xx xx + h sc - 70 - 5 sot - 23 - 5 ( a ) sot - 23 - 5 ( b ) descr i p t i o n function 5 5 1 vout output pin 1 1 3 vdd input pin 2 2 2 gnd ground pin 3 3 4 ce chip enable pin 4 4 5 nc no connection hn: sc - 70 - 5 bna : sot - 23 - 5 bnb : sot - 23 - 5 output voltage 1.2v/ 1.5v/2.8v ..4.5v pb - free halogen - free
ace 515 low noise, fast response 300ma ldo regulator ver 1. 5 3 block diagram re commended work conditions item min max unit input voltage range 2 6 v ambient temperature - 40 85 electrical characteristics ace 515 for arbitrary output voltage (test conditions: cin=1uf, cout= 1 uf,t a =25 , unless otherwise specified.) parameter symbol conditions min typ max units input voltage v in 2 6 v output voltage v out >1.5v v in =set v out +1v 1ma Q iout Q 30ma v out x 0.98 v out 1 v out x 1.02 v v out <=1.5 v v out C 0.03 v out 1 v out + 0 .03 maximum output current i out (max.) v in - v out =1v 300 ma dropout voltage, v out R 2.8v vdrop 1 i out =100ma 50 80 m v i out =300ma 160 220 m v line regulation v out / v in ?v out i out =40ma 2.8v Q v in Q 6 v 0.05 0.2 %/v load regulation v out / i out v in = set v out +1v 1ma Q i out Q 3 00ma 60 100 m v supply current iss v in =set v out +1v 25 50 ua supply current (standby) istandby v in =set v out +1v vce=gnd 0.1 1.0 ua output voltage tempe rature coefficien t v out / t?v out i out = 3 0ma 100 ppm/
ace 515 low noise, fast response 300ma ldo regulator ver 1. 5 4 ripple rejection psrr f=100hz, ripple=0.5vp - p v in =set v out +1v 7 0 db short current limit iiim v out =0v 500 ma ce pull down resistance rpd 2.0 5.0 10.0 m ce input voltage h vceh 1.5 v in v ce input voltage l vcel 0 0.25 v output noise en bw=10hz~100khz 47 uvrms note: v d r o p=vin 1 - (vout2*0.98) vout2 is the output voltage when vin=vout1+1.0v and iout=300ma . vin is the input voltage at which the output voltage becomes 98% of vout1 after gra dually decreasing the input voltage. typical application circuit a ce5 15 n ote input capacitor (cin=1uf) and output capacitor (cout=1uf) are recommended in all application circuit. explanation ace515 series is a group of positive voltage output, low noise, low power consumption, low dropout voltage regulator. ace515 can provide output value in the range of 1. 0 v~4.5v every 0.1v step. it also can be customized on command. ace515 incl udes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. ace515 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 output voltage accuracy within 2%.
ace 515 low noise, fast response 300ma ldo regulator ver 1. 5 5 typical performance characteristics 1. output voltage vs. output current 2.output voltage vs. input voltage (with output short protection) current limit vs . vout lin regulation v in (v) iload (ma) 3. dropout voltage vs. output current 4.ripple rejection vs. freque ncy dropout & iout psrr iout (ma) freq (khz)
ace 515 low noise, fast response 300ma ldo regulator ver 1. 5 6 5.line transient response cin=cout=1 uf iout=25ma vout=3.3v 6.line transient response cin=cout=1uf vin =4.5v vout=3.3v 7.startup up from en 8.shutdown from en
ace 515 low noise, fast response 300ma ldo regulator ver 1. 5 7 packing information sc - 70 - 5 sot - 23 - 5
ace 515 low noise, fast response 300ma ldo regulator ver 1. 5 8 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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