ace 507a precise low dropout voltage regulator ver 1. 7 1 d escription the ace507 a series are precise, low power consumption, positive voltage regulators manufactured using cmos and laser trimming technologies. the series provides large currents with a significantly small dropout voltage. the ace507a consists of a current limit circuit, a driver transistor a precision reference voltage and an error correction circuit. the series is compatible with low esr ceramic capacitors. the current limiter s foldback circuit also operates as a short protect for the output cur rent limiter and the output pin. output voltage can be set internally by laser trimming technologies. it is selectable in 100mv increments with a range of 1.2v to 5.0v. features ? output voltage selectable in 10 0mv steps (1. 2 v to 5.0v) ? highly accurate ? low dropout voltage ? low power consumption ? internal current limiting and short protecting ? small packages application ? battery powered equipment ? cameras, video cameras ? reference voltage source ? mobile phones ? communica tion tools functional block diagram
ace 507a precise low dropout voltage regulator ver 1. 7 2 absolute maximum ratings operating temperature range applies unless otherwise specified. p arameter s ymbol m ax u nit input voltage v in - 0. 3 ~ 6 v output current v out v ss - 0.3 to v i n 0.3 v power dissipation (t a =25 ) sot - 23 - 3 sot - 89 - 3 p d 150 500 mw operating temperature rang t opr - 25 ~ 80 o c storage t emperature rang t s tg - 40 ~ 125 o c packaging type sot - 8 9 - 3 sot - 23 - 3 3 1 2 3 1 2 d e s c r i p t i o n sot - 89 - 3(a) sot - 89 - 3(b) sot - 23 - 3 v ss 2 1 1 v in 3 2 3 v out 1 3 2 ordering information ace 50 7 a xx xx + h ama : sot - 89 - 3 amb : sot - 89 - 3 bm : sot - 23 - 3 output voltage
ace 507a precise low dropout voltage regulator ver 1. 7 3 elec trical characteristics (t a =25 , unless otherwise specified.) symbol parameter test conditions test circuit min typ max units v in input voltage 1.8 6 v i ss supply current v in =v out +1.0v sot - 23 - 3 2 8 a sot - 89 - 3 20 50 v out output voltage v in =v out +1.0v, i out =40ma 1 v out (t) *0.98 v out (t) v out (t) *1.02 v i out output current v in R v out +1.0v 1 300 ma v drop dropout voltage i out = 100ma 1.5v Q v out Q 2.5v 1 0. 51 0.75 v 2.6v Q v out Q 3.3v 0.16 0.24 3.4v Q v out Q 5.0v 0.12 0.20 v out / v in ?v out lin regulations v out +0.5v Q v in Q 5. 5v i out =80ma 0.05 0.3 %/v v out load regulations v in =v out +1.0v 1.0ma Q i out Q 80ma 20 40 mv v out / t a ?v out output voltage temperature characteristics v in =v out +1.0v , i out =10ma 100 ppm/ irri ripple rejection v in =v out +1.0v , f= 120 hz v rip = 1 v rms , i out = 3 0ma 1 62 db i short short current v in =v out +1. 0 v 1 30 ma i out maximum output current v in =v out +1.0v , v out >2.5 v 1 3 5 0 ma note 1. v out (t)=specified output voltage note 2. v out (e)=effective output voltage (i.e. the output voltage when v out (t)+.0v is provided at the v in pin while maintaining a certain i out value) note 3. v drop ={v in1 (note5) - v out1 (note4)} note 4. v out1 =a voltage equal to 98% of the output voltage whenever an amply stabilized i out (v out (t)+1.0v)is input. note 5. v in1 =the voltage when v out =v out1
ace 507a precise low dropout voltage regulator ver 1. 7 4 t est circuit test circuit 1 test circuit 2 typical application circuit ace 507a vin vin vout vout g nd + 1uf + 1uf cin cout
ace 507a precise low dropout voltage regulator ver 1. 7 5 typical performance characteristics 3.0v out unless otherwise specified vin=4.0v topr=25 cin=1uf (ceramic), cl=1uf (ceramic) cin=1uf (ceramic), cl=1uf (ceramic) topr= 80 25 i out =1ma - 25 =40ma =100ma output current iout(ma) input voltage v in (v) figure 1. output voltage vs. output current figure 2. output voltage vs. input voltage iout=10ma, cl=1uf cin=1uf (ceramic) cl=1uf 150ma topr=80 25 1 0 0ma - 25 50ma 3 0ma 1 0ma output current i out (ma) v ota (v) figure 3. dropout voltage vs. output current figure4. dropo ut voltage vs. output voltage
ace 507a precise low dropout voltage regulator ver 1. 7 6 vin=4vdc+1vp - pac iout= 3 0ma cl=1f(ceramic) t a ( ) frequency f(khz) figure 5. output voltage vs. temperature figure 6. ripple rejection rate vin=4.0v iout=10ma , cl=1uf cin=1uf (ceramic), cl=1uf (ceramic) input volt a ge output voltage output voltage time (2msed/div) time (1msed/div) figure 7. input transient response figure 8. load transient response 40m output current 1ma
ace 507a precise low dropout voltage regulator ver 1. 7 7 packing information sot - 23 - 3
ace 507a precise low dropout voltage regulator ver 1. 7 8 packing information sot - 89 - 3
ace 507a precise low dropout voltage regulator ver 1. 7 9 notes ace does not assume any responsibility for use as critical components in life support devices or systems without the express writt en 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 failu re 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 fail ure 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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