ait semiconductor inc. www.ait - ic.com a 650 5 low dropout voltage regulator dual 500ma high psrr linear regulator rev1.0 - may 201 2 released - - 1 - description features A6505 dual, low - noise, low - dropout regulator delivers at least 500ma of continuous output current. the output voltage for each regulator is set independently by trimming. voltages are selectable in 100mv steps within a range of 1.2v to 4.5v . the A6505 includes two independent logic - controlled shutdown inputs and allows the output of each regulator to be turned of independently. A6505 includes high accuracy volt age reference, error amplifier, current limit circuit and output driver mo dule. A6505 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%. a650 5 is availa ble in sot - 26 package . ? two low dropout voltage regulators ? 500ma output current for each ldo ? low output noise (50uv rms ) ? low dropout voltage:0.08v@150ma(typ . ) ? standby mode: 0.1ua ? high ripple rijection:72db@ 1k hz (typ . ) ? excellent line regulation: 0.05%/v ? independe nt shutdown controls ? 1.2v to 4.5v factory - preset output ? output current limit ? highly accurate: 2% ? available in sot - 26 packa ge. application ? cellular phones ? cordless phones and radio communication equipment ? battery powered equipment ? notebook and hand - hol d equipment ? wireless lan ? gps receivers order information package type part number sot - 26 e6 A6505e6r - x A6505e6vr - x note x:outputvoltage see output voltage portfolio r: tape & reel v: halogen free package ait provides all rohs products suffix v mea ns halogen free package typical application note: input capacitor (c in =1uf) and output capacitor (c out =1uf/3.3uf) are recommended in all application circuit.
ait semiconductor inc. www.ait - ic.com a 650 5 low dropout voltage regulator dual 500ma high psrr linear regulator rev1.0 - may 201 2 released - - 2 - pin description top view pin # symbo l function 1 v out2 ch2 output voltage 2 v ss ground pin 3 ce2 chip enable2 4 ce1 chip enable1 5 v in supply voltage input 6 v out1 ch1 output voltage output voltage portfolio code output voltage part number code output voltage part number out1 out2 pb free gr een out1 out2 pb free green b 1.5 2.8 A6505 e6r -b A6505 e6vr -b m 2.8 1.8 A6505 e6r -m A6505 e6vr -m c 1.5 3.0 A6505 e6r -c A6505 e6vr -c o 2.8 2.8 A6505 e6r -o A6505 e6vr -o d 1.5 3.3 A6505 e6r -d A6505 e6vr -d p 2.8 3.0 A6505 e6r -p A6505 e6vr -p e 1.5 4.0 A6505 e6r -e a650 5 e6vr -e q 3.0 2.5 A6505 e6r -q A6505 e6vr -q g 1.8 2.5 A6505 e6r -g A6505 e6vr -g r 3.0 3.0 A6505 e6r -r A6505 e6vr -r h 1.8 2.8 A6505 e6r -h A6505 e6vr -h s 3.0 3.3 A6505 e6r -s A6505 e6vr -s i 1.8 3.0 A6505 e6r -i A6505 e6vr -i t 3.3 1.8 A6505 e6r -t A6505 e6vr -t j 1.8 3.3 a65 05 e6r - j A6505 e6vr - j u 3.3 3.3 A6505e6r -u A6505e6vr -u
ait semiconductor inc. www.ait - ic.com a 650 5 low dropout voltage regulator dual 500ma high psrr linear regulator rev1.0 - may 201 2 released - - 3 - absolute maximum ratings max input voltage 8v t j , operating junction temperature 125 c t a , ambient temperature - 40 c ~ 85 c power dissipation sot - 26 250mw t s , storage temperature - 40 c ~ 150 c le ad temperature & time 260 c,10s stresses above may cause permanent damage to the device. t hese are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the electrical characteristics is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. recommended work conditions input voltage range max. 6v ambient temperature - 40 c ~ 85 c
ait semiconductor inc. www.ait - ic.com a 650 5 low dropout voltage regulator dual 500ma high psrr linear regulator rev1.0 - may 201 2 released - - 4 - electrical characteristics test conditions: c in =1 uf,c out =3.3uf,t a =25 c, unless otherwise specified. parameter symbol conditions min typ . max units input voltage v in 1.2 - 6 v output voltage v out v in =set , v out +1v , 1mai out 30ma v out x 0.98 v out1 v out x 1.02 v maximu m output current i out(max) 600 - - ma dropout voltage v out 2.8v v drop i out = 50ma - 25 40 mv i out = 100ma - 50 75 i out = 150ma - 75 115 i out = 400ma - 220 280 line regulation v out v in v out i out = 40 ma , 2.8vv in 6v - 0.05 0.1 %/v load regulation v out i out v in =set v out +1v 1mai out 500ma - 100 150 mv supply current i ss v in =set v out +1v - 30 50 ua supply current (standby) i standby v in =set v out +1v v ce =0v - 0.1 1.0 ua output voltage temperature coefficiency v out t v out v in =set v out +1v , i out =30ma - 50 - ppm/ c ripple rejection psrr f=1000hz, ripple=0 .5v p-p v in =set v out +1v - 72 - db short current limit i lim v out =0v - 500 - ma ce input voltage h v ceh 1.4 - - v ce i nput voltage l v cel - - 0.25 v output noise en bw=10hz~100khz - 50 - uv rms
ait semiconductor inc. www.ait - ic.com a 650 5 low dropout voltage regulator dual 500ma high psrr linear regulator rev1.0 - may 201 2 released - - 5 - typical characteristics 1. output voltage vs. output current (with output short protection) 2. output voltage vs. input voltage 3. dropout voltage vs. output current 4. ripple rejection vs. frequency 5. line transient response , c in =c out =1uf , i out =25ma , v out =3.3v
ait semiconductor inc. www.ait - ic.com a 650 5 low dropout voltage regulator dual 500ma high psrr linear regulator rev1.0 - may 201 2 released - - 6 - 6. load transient response , c in =c out =1 uf , v in =4.5 v , v out =3.3v 7. start up from en 8. shut down from en
ait semiconductor inc. www.ait - ic.com a 650 5 low dropout voltage regulator dual 500ma high psrr linear regulator rev1.0 - may 201 2 released - - 7 - block diagram
ait semiconductor inc. www.ait - ic.com a 650 5 low dropout voltage regulator dual 500ma high psrr linear regulator rev1.0 - may 201 2 released - - 8 - detailed information A6505 series are highly accurate, dual, low noise, cmos low dropout voltage regulators. the output voltage for each regulator is set independently by trimming. voltages are selectable in 100mv steps within a range of 1.2v to 4.5v. it also can be customized on command. A6505 includes high accuracy volt age reference, error amplifier, current l imit circuit and output driver module. A6505 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 w ithin 2%.
ait semiconductor inc. www.ait - ic.com a 650 5 low dropout voltage regulator dual 500ma high psrr linear regulator rev1.0 - may 201 2 released - - 9 - package information dimension in sot - 2 6 package (unit: mm) symbol min max a 1.050 1.250 a1 0.000 0.100 a2 1.050 1.150 b 0. 2 00 0.500 c 0.100 0.2 5 0 d 2. 70 0 3. 100 e 1.500 1. 8 00 e1 2. 500 3.100 e 0.950(bsc) e1 1. 7 00 2 . 1 00 l 0.300 0.60 0 0 8
ait semiconductor inc. www.ait - ic.com a 650 5 low dropout voltage regulator dual 500ma high psrr linear regulator rev1.0 - may 201 2 released - - 10 - important notice a it semiconductor inc. (ait) reserves the right to make changes to any its pr oduct, specifications, to disco ntinue any integrated circuit product or service w i thout notice, and advises its customers to obtain the latest vers ion of relevant information to verify, before placing orders, that the information being relied on is current. a it semiconductor inc. 's integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life suppor t applications, devices or systems or other critical applications. use of ait products in such applications is understood to be fully at the risk of the customer. as used herein may involve potential risks of death, personal injury, or servere property, or environmental damage. in order to minimize risks associated with the customer's appli c ations, the customer should provide adequate design and operating safeguards. a it semiconductor inc. assumes to no liability to customer product design or applica tion support. ait warrants the performance of its products o f the specifications applicable at the time of sale.
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