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ame, inc. 1 ame8800 / 8811 300ma cmos ldo n n n n n typical application n n n n n functional block diagram n n n n n features l very low dropout voltage l guaranteed 300ma output l accurate to within 1.5% l 30 m a quiescent current l over-temperature shutdown l current limiting l short circuit current fold-back l space-saving sot-23, sot-25, sot-89 and to-92 package l factory pre-set output voltages l low temperature coefficient n n n n n general description the ame8800/8811 family of positive, linear regula- tors feature low quiescent current (30 m a typ.) with low dropout voltage, making them ideal for battery applica- tions. the space-saving sot-23, sot-25, sot-89 and to-92 packages are attractive for "pocket" and "hand held" aplications. these rugged devices have both thermal shutdown, and current fold-back to prevent device failure under the "worst" of operating conditions. the ame8800/8811 is stable with an output capacitance of 2.2 m f or greater. n n n n n applications l instrumentation l portable electronics l wireless devices l cordless phones l pc peripherals l battery powered widgets l electronic scales ame8800 ame8811 out in c2 2.2 m f c1 1 m f in gnd out 5v overcurrent shutdown thermal shutdown amp gnd out in r1 r2 v ref =1.215v
ame, inc. 2 300ma cmos ldo ame8800 / 8811 n n n n n pin configuration to-92 front view ame8800 1. gnd 2. v in 3. v out ame8811 1. v out 2. gnd 3. v in 1 23 sot-23 top view 3 12 1. gnd 2. v out 3. v in sot-25 top view 1. gnd 4. nc 2. v in 5. nc 3. v out 5 4 12 3 sot-89 top view 12 3 ame8800 1. gnd 2. v in 3. v out ame8811 1. v out 2. gnd 3. v in
ame, inc. 3 ame8800 / 8811 300ma cmos ldo n n n n n ordering information (contd.) part number marking output package operating temp. ame8800aeet aaaww 3.3v sot-23 -40 o c to +85 o c ame8800beet aabww 3.0v sot-23 -40 o c to +85 o c ame8800ceet aacww 2.8v sot-23 -40 o c to +85 o c ame8800deet aadww 2.5v sot-23 -40 o c to +85 o c ame8800eeet aaeww 3.8v sot-23 -40 o c to +85 o c ame8800feet abnww 3.6v sot-23 -40 o c to +85 o c ame8800geet acdww 3.5v sot-23 -40 o c to +85 o c ame8800heet aedww 2.7v sot-23 -40 o c to +85 o c ame8800ieet aelww 3.4v sot-23 -40 o c to +85 o c ame8800jeet agnww 2.85v sot-23 -40 o c to +85 o c ame8800keet ahpww 3.7v sot-23 -40 o c to +85 o c ame8800leet ajwww 1.5v sot-23 -40 o c to +85 o c ame8800meet ajxww 1.8v sot-23 -40 o c to +85 o c ame8800neet akgww 2.9v sot-23 -40 o c to +85 o c ame8800oeet akhww 3.1v sot-23 -40 o c to +85 o c ame8800aeev abrww 3.3v sot-25 -40 o c to +85 o c ame8800beev absww 3.0v sot-25 -40 o c to +85 o c ame8800ceev abtww 2.8v sot-25 -40 o c to +85 o c ame8800deev abuww 2.5v sot-25 -40 o c to +85 o c ame8800eeev abvww 3.8v sot-25 -40 o c to +85 o c ame8800feev abwww 3.6v sot-25 -40 o c to +85 o c ame8800geev aceww 3.5v sot-25 -40 o c to +85 o c ame8800heev aeeww 2.7v sot-25 -40 o c to +85 o c
ame, inc. 4 300ma cmos ldo ame8800 / 8811 part number marking output package operating temp. ame8800ieev aemww 3.4v sot-25 -40 o c to +85 o c ame8800jeev agoww 2.85v sot-25 -40 o c to +85 o c ame8800keev ahqww 3.7v sot-25 -40 o c to +85 o c ame8800leev ajuww 1.5v sot-25 -40 o c to +85 o c ame8800meev ajvww 1.8v sot-25 -40 o c to +85 o c ame8800neev akiww 2.9v sot-25 -40 o c to +85 o c ame8800oeev akjww 3.1v sot-25 -40 o c to +85 o c ame8800aeft a8800 aefww 3.3v sot-89 -40 o c to +85 o c ame8800beft a8800 befww 3.0v sot-89 -40 o c to +85 o c ame8800ceft a8800 cefww 2.8v sot-89 -40 o c to +85 o c ame8800deft a8800 defww 2.5v sot-89 -40 o c to +85 o c ame8800eeft a8800 eefww 3.8v sot-89 -40 o c to +85 o c ame8800feft a8800 fefww 3.6v sot-89 -40 o c to +85 o c ame8800geft a8800 gefww 3.5v sot-89 -40 o c to +85 o c ame8800heft a8800 hefww 2.7v sot-89 -40 o c to +85 o c ame8800ieft a8800 ie f w w 3.4v sot-89 -40 o c to +85 o c ame8800jeft a8800 jefww 2.85v sot-89 -40 o c to +85 o c ame8800keft a8800 kefww 3.7v sot-89 -40 o c to +85 o c ame8800left a8800 lefww 1.5v sot-89 -40 o c to +85 o c ame8800meft a8800 mefww 1.8v sot-89 -40 o c to +85 o c ame8800neft a8800 nefww 2.9v sot-89 -40 o c to +85 o c ame8800oeft a8800 oefww 3.1v sot-89 -40 o c to +85 o c ame8800seft a8800 sefww 5.0v sot-89 -40 o c to +85 o c n n n n n ordering information (contd.)
ame, inc. 5 ame8800 / 8811 300ma cmos ldo n n n n n ordering information (contd.) part number marking output package operating temp. ame8800aeat ame 8800 aeat yyww 3.3v to-92 -40 o c to +85 o c ame8800beat ame 8800 beat yyww 3.0v to-92 -40 o c to +85 o c ame8800ceat ame 8800 ceat yyww 2.8v to-92 -40 o c to +85 o c ame8800deat ame 8800 deat yyww 2.5v to-92 -40 o c to +85 o c ame8800eeat ame 8800 eeat yyww 3.8v to-92 -40 o c to +85 o c ame8800feat ame 8800 feat yyww 3.6v to-92 -40 o c to +85 o c ame8800geat ame 8800 geat yyww 3.5v to-92 -40 o c to +85 o c ame8800heat ame 8800 heat yyww 2.7v to-92 -40 o c to +85 o c
ame, inc. 6 300ma cmos ldo ame8800 / 8811 n n n n n ordering information (contd.) part number marking output package operating temp. ame8800ieat ame 8800 ieat yyww 3.4v to-92 -40 o c to +85 o c ame8800jeat ame 8800 jeat yyww 2.85v to-92 -40 o c to +85 o c ame8800keat ame 8800 keat yyww 3.7v to-92 -40 o c to +85 o c ame8800leat ame 8800 leat yyww 1.5v to-92 -40 o c to +85 o c ame8800meat ame 8800 meat yyww 1.8v to-92 -40 o c to +85 o c ame8800neat ame 8800 neat yyww 2.9v to-92 -40 o c to +85 o c ame8800oeat ame 8800 oeat yyww 3.1v to-92 -40 o c to +85 o c
ame, inc. 7 ame8800 / 8811 300ma cmos ldo n n n n n ordering information (contd.) part number marking output package operating temp. ame8811aeat ame 8811 aeat yyww 3.3v to-92 -40 o c to +85 o c ame8811beat ame 8811 beat yyww 3.0v to-92 -40 o c to +85 o c ame8811ceat ame 8811 ceat yyww 2.8v to-92 -40 o c to +85 o c ame8811deat ame 8811 deat yyww 2.5v to-92 -40 o c to +85 o c ame8811eeat ame 8811 eeat yyww 3.8v to-92 -40 o c to +85 o c ame8811feat ame 8811 feat yyww 3.6v to-92 -40 o c to +85 o c ame8811geat ame 8811 geat yyww 3.5v to-92 -40 o c to +85 o c ame8811heat ame 8811 heat yyww 2.7v to-92 -40 o c to +85 o c
ame, inc. 8 300ma cmos ldo ame8800 / 8811 part number marking output package operating temp. ame8811ieat ame 8811 ieat yyww 3.4v to-92 -40 o c to +85 o c ame8811jeat ame 8811 jeat yyww 2.85v to-92 -40 o c to +85 o c ame8811keat ame 8811 keat yyww 3.7v to-92 -40 o c to +85 o c ame8811leat ame 8811 leat yyww 1.5v to-92 -40 o c to +85 o c ame8811meat ame 8811 meat yyww 1.8v to-92 -40 o c to +85 o c ame8811neat ame 8811 neat yyww 2.9v to-92 -40 o c to +85 o c ame8811oeat ame 8811 oeat yyww 3.1v to-92 -40 o c to +85 o c n n n n n ordering information (contd.)
ame, inc. 9 ame8800 / 8811 300ma cmos ldo n n n n n ordering information please consult ame sales office or authorized rep./distributor for other output voltage and package typeavailability. part number marking output package operating temp. ame8811aeft a8811 aefww 3.3v sot-89 -40 o c to +85 o c ame8811beft a8811 befww 3.0v sot-89 -40 o c to +85 o c ame8811ceft a8811 cefww 2.8v sot-89 -40 o c to +85 o c ame8811deft a8811 defww 2.5v sot-89 -40 o c to +85 o c ame8811eeft a8811 eefww 3.8v sot-89 -40 o c to +85 o c ame8811feft a8811 fefww 3.6v sot-89 -40 o c to +85 o c ame8811geft a8811 gefww 3.5v sot-89 -40 o c to +85 o c ame8811heft a8811 hefww 2.7v sot-89 -40 o c to +85 o c ame8811ieft a8811 iefww 3.4v sot-89 -40 o c to +85 o c ame8811jeft a8811 jefww 2.85v sot-89 -40 o c to +85 o c ame8811keft a8811 kefww 3.7v sot-89 -40 o c to +85 o c ame8811left a8811 lefww 1.5v sot-89 -40 o c to +85 o c ame8811meft a8811 mefww 1.8v sot-89 -40 o c to +85 o c ame8811neft a8811 nefww 2.9v sot-89 -40 o c to +85 o c AME8811OEFT a8811 oefww 3.1v sot-89 -40 o c to +85 o c
ame, inc. 10 300ma cmos ldo ame8800 / 8811 n n n n absolute maximum ratings: parameter maximum unit 8v p d / (v in - v o )ma gnd - 0.3 to v in + 0.3 v b n n n n recommended operating conditions: parameter rating unit -40 to +85 o c -40 to +125 o c caution: stress above the listed absolute rating may cause permanent damage to the device input voltage output current output voltage esd classification ambient temperature range junction temperature
ame, inc. 11 ame8800 / 8811 300ma cmos ldo n n n n thermal information parameter maximum unit sot-23 110 sot-25 81 sot-89 38 to-92 80 sot-23 325 sot-25 260 sot-89 180 to-92 180 sot-23 300 sot-25 380 sot-89 550 sot-89 2750* to-92 625 150 o c 300 o c * with heat sink capable of twice times the q jc caution: stress above the listed absolute rating may cause permanent damage to the device o c / w o c / w mw thermal resistance ( q jc ) thermal resistance ( q ja ) internal power dissipation (p d ) ( d t = 100 o c) maximum junction temperature maximum lead temperature ( 10 sec)
ame, inc. 12 300ma cmos ldo ame8800 / 8811 n n n n n electrical specifications parameter symbol min typ max units input voltage v in note 1 7 v output voltage accuracy v o -1.5 1.5 % 1.4v1.2v i o =1ma test condition mv power supply rejection i o =100ma c o =2.2 m f v o >1.2v i o =0ma i o =1ma to 300ma line regulation reg line output voltage noise en f=10hz to 100khz i o =10ma 30 % m vrms v o <0.8v i o =1ma to 300ma i o =1ma v in =v o +1 to v o +2 co=2.2 m f
ame, inc. 13 ame8800 / 8811 300ma cmos ldo n n n n n detailed description the ame8800/8811 family of cmos regulators con- tain a pmos pass transistor, voltage reference, error amplifier, over-current protection, and thermal shut- down. the p-channel pass transistor receives data from the error amplifier, over-current shutdown, and thermal pro- tection circuits. during normal operation, the error am- plifier compares the output voltage to a precision refer- ence. over-current and thermal shutdown circuits be- come active when the junction temperature exceeds 150 o c, or the current exceeds 300ma. during thermal shutdown, the output voltage remains low. normal op- eration is restored when the junction temperature drops below 120 o c. the ame8800/8811 switches from voltage mode to cur- rent mode when the load exceeds the rated output cur- rent. this prevents over-stress. the ame8800/8811 also incorporates current foldback to reduce power dis- sipation when the output is short circuited. this feature becomes active when the output drops below 0.8 volts, and reduces the current flow by 65%. full current is restored when the voltage exceeds 0.8 volts. n n n n n external capacitors the ame8800/8811 is stable with an output capacitor to ground of 2.2 m f or greater. ceramic capacitors have the lowest esr, and will offer the best ac performance. conversely, aluminum electrolytic capacitors exhibit the highest esr, resulting in the poorest ac response. unfortunately, large value ceramic capacitors are com- paratively expensive. one option is to parallel a 0.1uf ceramic capacitor with a 10uf aluminum electrolytic. the benefit is low esr, high capacitance, and low over- all cost. a second capacitor is recommended between the input and ground to stabilize v in . the input capacitor should be at least 0.1 m f to have a beneficial effect. all capacitors should be placed in close proximity to the pins. a "quiet" ground termination is desirable. this can be achieved with a "star" connection.
ame, inc. 14 300ma cmos ldo ame8800 / 8811 -80 -70 -60 -50 -40 -30 -20 -10 0 1.0e+01 1.0e+03 1.0e+05 1.0e+07 power supply rejection ratio psrr (db) frequency (hz) 100ma 10ma 1ma 100 m a 100ma 100 m a c l =2.2 m f tantalum c byp =0 0 5 10 15 20 25 30 35 40 45 012345678 ground current vs. input voltage ground current ( m m m m a) input voltage (v) 85 o c 25 o c load step ( 1ma-300ma) i l (200ma/div) vo(5mv/div) time( 20ms/div) c l =2.2 m f c in =2.2 m f output i load 0 0 50 100 150 200 250 300 2.5 2.75 3 3.25 3.5 3.75 4 drop out voltage vs output voltage output voltage (v) drop out voltage (mv) i load =300ma i load =200ma i load =100ma 0 50 100 150 200 250 0 50 100 150 200 250 300 drop out voltage vs load current load current (ma) dropout voltage (mv) top to bottom v out =2.5v v out =2.8v v out =3.0v v out =3.3v v out =3.5v v out =3.8v short circuit response time (2ms/div) v out (1v/div) i load (400ma/div) r load =100 w r short =0.1 w 0 0
ame, inc. 15 ame8800 / 8811 300ma cmos ldo c l = 2.2 m f no filter transient line response time (2ms/div) v o (1mv/div) v in (1v/div) c l = 2.2 m f v in dc = 5.0v current limit response v out (1v/div) i out (200ma/div) time (2ms/div) r load =3.3 w 0 0 overtemperature shutdown v out (1v/div) i out (200ma/div) time (0.5sec/div) r load =6.6 w 0 0 noise measurement time (20ms/div) vo (1mv/ div) safe operating area output current (ma) input-output voltage differential (v) sot-223 dpak-2 75 o c rise with hs capable of twice q jc
ame, inc. 16 300ma cmos ldo ame8800 / 8811 0.01 0.1 1 10 100 1000 10000 0 50 100 150 200 iload (ma) stable region untested region unstable region esr ( w w w w ) c l =2 m f stability vs. esr vs i load 0.01 0.1 1 10 100 1000 10000 0 50 100 150 200 stable region untested region unstable region iload (ma) esr ( w w w w ) c l =3 m f stability vs. esr vs i load 0.001 0.01 0.1 1 10 100 1000 10000 0 50 100 150 200 stable region untested region unstable region iload (ma) esr ( w w w w ) c l =10 m f stability vs. esr vs i load 0.01 0.1 1 10 100 1000 10000 0 50 100 150 200 esr ( w w w w ) stable region untested region unstable region iload (ma) c l =1 m f stability vs. esr vs i load
ame, inc. 17 ame8800 / 8811 300ma cmos ldo 27 28 29 30 31 32 33 34 35 -45 -5 25 55 85 temperature ( 0 c) quiescent current @ 5v (ua) quiescent current vs. temp. 150 160 170 180 190 200 210 220 -45-5 255585 temperature ( 0 c) dropout voltage @ 300ma (mv) dropout voltage vs. temp. v out =3v 0.40 0.42 0.44 0.46 0.48 0.50 0.52 0.54 0.56 0.58 -45-5 2555 85 temperature ( 0 c) load regulation (%) load regulation vs. temp.
ame, inc. 18 300ma cmos ldo ame8800 / 8811 n n n n n package dimension sot-23 sot-25 min max min max a 1.00 1.40 0.0394 0.0551 a 1 0.00 0.15 0.0000 0.0059 a 2 0.70 1.25 0.0276 0.0492 b 0.35 0.50 0.0138 0.0197 c 0.09 0.25 0.0035 0.0098 d 2.70 3.10 0.1063 0.1220 e 1.40 1.80 0.0551 0.0709 e h 2.60 3.00 0.1024 0.1181 l 0.35 0.55 0.0138 0.0197 q1 q1 q1 q1 0 o 9 o 0 o 9 o r symbols m illim eters inches 1.90 bsc 0.0748 bsc 0.95(typ) 0.0374(typ) min max min max a 1.00 1.45 0.0394 0.0571 a 1 0.00 0.15 0.0000 0.0591 a2 0.70 1.25 0.0276 0.0492 b 0.35 0.55 0.0138 0.0217 c 0.08 0.25 0.0031 0.0098 d 2.70 3.10 0.1063 0.1220 e 1.40 1.80 0.0551 0.0709 e h 2.60 3.00 0.1024 0.1181 l 0.30 - 0.0118 - q1 q1 q1 q1 0 10 0 10 s 1 0.85 1.05 0.0335 0.0413 1.90 bsc 0.07480 bsc symbols millimeters inches
ame, inc. 19 ame8800 / 8811 300ma cmos ldo n n n n n package dimension to-92 sot-89 min max min max a 1.40 1.60 0.0551 0.0630 a 1 0.89 - 0.0350 - b 0.36 0.52 0.0142 0.0205 b 1 0.41 0.56 0.0161 0.0220 c 0.35 0.44 0.0138 0.0173 d 4.40 4.60 0.1732 0.1811 d 1 1.35 1.83 0.0531 0.0720 he - 4.25 - 0.1673 e 2.29 2.60 0.0902 0.1024 e 2.90 3.10 0.1142 0.1220 h 0.35 0.70 0.0138 0.0276 s1 1.40 1.60 0.0551 0.0630 symbols millimeters inches min max min max a 4.32 4.95 0.170 0.195 b 0.36 0.51 0.014 0.020 e 3.30 3.94 0.130 0.155 e 2.41 2.67 0.095 0.105 e1 1.14 1.40 0.045 0.055 l 12.70 15.49 0.500 0.610 r 2.16 2.41 0.085 0.095 s1 1.14 1.52 0.045 0.060 w 0.41 0.56 0.016 0.022 d 4.45 4.95 0.175 0.195 a 4 6 4 6 note: dimension 2. package outline exclusive of burr dimension 1. package outline exclusive of any mold flashes symbols millimeters inches
life support policy: these products of ame, inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president of ame, inc. ame, inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. ? ame, inc. , january 2002 document: 2006-ds8800/8811-f u.s. headquarter corporate headquarter analog microelectronics, inc. ame, inc. 3100 de la cruz blvd. suite 201 2f, 189 kang-chien road, nei-hu district santa clara, ca. 95054-2046 taipei 114, taiwan, r.o.c. tel : (408) 988-2388 tel : 886 2 2627-8687 fax: (408) 988-2489 fax : 886 2 2659-2989 www.ame.com.tw e-mail: info@ame.com.tw

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