ait semiconductor inc. www.ait - ic.com A6500A low dropout voltage regulator 500m a high psrr, low noise , fast response linear re v 1 . 3 - jun 2011 released , feb 20 15 updated - 1 description features A6500A series is a group of positive voltage output, low power consumption, low dropout voltage regulator. A6500A can provide output value in the range of 1.0v~4.5v every 0.1v step. it also can be customized on command. A6500A inclu des high accuracy voltage reference, error amplifier, current limit circuit and output driver module with discharge capability. A6500A has excellent load and line transient response and good temperature characteristics, which can assure the stability of c hip and power system. and it uses trimming technique to guarantee output voltage accuracy within 2%. A6500A is available in sot - 25 package. ? low power consumption: 30 ua (typ.) ? low output noise ( 50uv rms ) ? standby mode: 0.1ua ? low dropout voltage: 0. 08 v@ 150m a (typ.) ? high ripple rejection: 72 db@ 1khz (typ.) ? low temperature coefficient: 100ppm/ ? excelle nt 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 ? highly accurate: 2% ? output current limit ? available in sot - 25 package application ? power source for ce llular phone s and various kind of pcss ? battery powered equipment ? power management of mp3, pda, dsc, mouse, ps2 games ? reference voltage source ? regulation after switching power ordering information package type part number sot - 25 e5 A6500A e5r - xx z a650 0a e5vr - xx z note xx: output voltage 25=2.5v, 33=3.3v z: a, b ( pin description) r: tape & reel v: halogen free package ait provides all rohs products suffix v means halogen free package typical application circuit note: input capacitor (c in = 1uf) and output capacitor (c out 1uf) are recommended in all application circuit.
ait semiconductor inc. www.ait - ic.com A6500A low dropout voltage regulator 500m a high psrr, low noise , fast response linear re v 1 . 3 - jun 2011 released , feb 20 15 updated - 2 pin description top view top view pin # symbol function sot - 25 - xxa sot - 25 - xxb 1 3 v in input voltage supply 2 2 v ss g r ound 3 4 ce chip enable 4 5 nc no connection 5 1 v out output voltage
ait semiconductor inc. www.ait - ic.com A6500A low dropout voltage regulator 500m a high psrr, low noise , fast response linear re v 1 . 3 - jun 2011 released , feb 20 15 updated - 3 absolute maximum ratings input voltag e 2 v ~ 6 v t j , operation junction temperature 150 output current 600ma storage temperature - 65 ~ 150 power dissipation sot - 2 5 360mw ir reflow lead temperature and time 260 , 10s esd rating, human body mode 3000 v stresses above may cause permanent damage to the device. these are stress ratings only and functional operation of the device at these or any other conditions beyond t hose indicated in the electrical characteristics are not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. recommended operation range parameters value input voltage 2 v ~ 6v operation ambient t emperature - 40 ~ 85 thermal resistance package ja jc sot - 25 250c/w 130c/w note: thermal resistance is specified with approximately 1 square of 1 oz copper.
ait semiconductor inc. www.ait - ic.com A6500A low dropout voltage regulator 500m a high psrr, low noise , fast response linear re v 1 . 3 - jun 2011 released , feb 20 15 updated - 4 electrical characteristics test condition: c in = 1uf, c out = 1 uf, t a = 25, unless ot herwise specif ied. parameter symbol condition s min. typ. max. unit input voltage v in 2 - 6 v output voltage v out v in = v out s et + 1v 1ma Q i out Q 3 0ma v outset x 0.98 v out set v out set x 1.02 v maximum output current i outmax 600 - - ma dropout voltage v out R 2.8v v drop i out = 5 0 ma - 25 40 mv i out = 100ma - 50 75 i out = 1 5 0ma - 75 115 i out = 4 00ma - 220 280 line regulation v out v in v out i out = 40ma 2.8v Q v in Q 6 v - 0.05 0.1 %/v load regulation v out / i out v in = v out set + 1v 1ma Q i out Q 500ma - 1 00 150 mv supply current when operation i ss v in = v out set + 1v - 30 50 ua supply current when shut down ishutdown v in = v out set + 1v v ce = 0v - 0.1 1 ua output voltage temperature coefficien t v out t v out v in = set v out + 1v i out = 30ma - 50 - ppm/ power supply ripple rejection rate psrr f = 1 k h z ripple = 0.5vp p v in = v out set + 1v - 72 - db output short current limit i limit v out = 0v - 500 - ma ce input voltage h v ceh 1.4 - - v ce input voltage l v cel - - 0.25 v output noise e n b andwit h =1 0 hz ~100 k h z - 50 - uv rms note: v out set is the no minal output voltage that A6500A is set to, for example, 3.3v. v drop = v in - (v out * 0.98), in which v out is the output voltage when v in = v out set + 1.0v at d ifferent output current, and v in is the input voltage at which the o utput voltage becomes 98% of v out after gradually decreasing the input voltage.
ait semiconductor inc. www.ait - ic.com A6500A low dropout voltage regulator 500m a high psrr, low noise , fast response linear re v 1 . 3 - jun 2011 released , feb 20 15 updated - 5 typical performance characteristics test condition: c in = 1uf, c out = 1 uf, t a =25, ce pin is tied to v in , v outset = 3.3v, unless otherwise specified. 1. output voltage vs. output current 2. output voltage vs. input voltage 3. dropout voltage vs. output current 4. ripple rejection vs. frequency 5. l ine transient response (ch1: v in 4?5v; ch2: v out )
ait semiconductor inc. www.ait - ic.com A6500A low dropout voltage regulator 500m a high psrr, low noise , fast response linear re v 1 . 3 - jun 2011 released , feb 20 15 updated - 6 6. load transient response (ch1: i out 1?50ma; ch2: v out ) 7. startup by ce (ch1: v out ; ch2: ce) 8. shutdown by ce (ch1: v out ; ch2: ce) 9. load regulation (v in = 4.5v, v out = 3.3v)
ait semiconductor inc. www.ait - ic.com A6500A low dropout voltage regulator 500m a high psrr, low noise , fast response linear re v 1 . 3 - jun 2011 released , feb 20 15 updated - 7 block diagram
ait semiconductor inc. www.ait - ic.com A6500A low dropout voltage regulator 500m a high psrr, low noise , fast response linear re v 1 . 3 - jun 2011 released , feb 20 15 updated - 8 detailed information A6500A includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module with discharge capability. A6500A 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 vo ltage accuracy within 2%. low esr ceramic capacitor can be used for A6500A for both input and output ends. both 1uf can keep A6500A work stable. however, a larger o utput capacitor, such as 3.3uf/ 4.7uf is always recommended to compensate dy nam ic load curr ent change.
ait semiconductor inc. www.ait - ic.com A6500A low dropout voltage regulator 500m a high psrr, low noise , fast response linear re v 1 . 3 - jun 2011 released , feb 20 15 updated - 9 package information dimension in sot - 25 (unit: mm) symbol min max a 1.0 0 0 1. 30 0 a1 0.000 0.100 a2 1.0 0 0 1.200 b 0.300 0.500 c 0.100 0.2 5 0 d 2. 700 3. 100 e 1.500 1. 8 00 e1 2. 50 0 3.100 e 0.950(bsc) e1 1. 7 00 2. 1 00 l 0. 2 00 - 0 8
ait semiconductor inc. www.ait - ic.com A6500A low dropout voltage regulator 500m a high psrr, low noise , fast response linear re v 1 . 3 - jun 2011 released , feb 20 15 updated - 10 important notice ait semiconductor inc. (ait) reserves the right to make changes to any its product, specifications, to dis co ntinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of r elevant information to verify, before placing orders, that the information being relied on is current. ait semiconductor inc. 's integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life support applic ations, 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 serv e property, or enviro nmental damage. in order to minimize risks associated with the customer's applications, the customer should provide adequate design and operating safeguards. ait semiconductor inc . assumes to no liability to customer product design or application suppo rt. ait warrants the performance of its products of the specifications applicable at the time of sale.
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