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ame, inc. 1 ame8805 / 8810 600ma cmos ldo n typical application n functional block diagram l very low dropout voltage l guaranteed 600ma 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-89, sot-223 l factory pre-set output voltages l low temperature coefficient the ame8805/8810 family of positive, linear regulators feature low quiescent current (30 m a typ.) with low drop- out voltage, making them ideal for battery applications. the space-saving sot-89 and sot-223 packages are attractive for "pocket" and "hand held" applications. these rugged devices have both thermal shutdown, and current fold-back to prevent device failure under the "worst" of operating conditions. the ame8805/8810 is stable with an output capaci- tance of 2.2 m f or greater. l instrumentation l portable electronics l wireless devices l cordless phones l pc peripherals l battery powered widgets l electronic scales n general description n features n applications overcurrent shutdown thermal shutdown amp gnd out in r1 r2 v ref =1.215v 2.2 m m m m f ame8805 ame8810 out in c2 c1 1 m m m m f in gnd out 5v
ame, inc. 2 600ma cmos ldo ame8805 / 8810 n pin configuration ame8805 1. gnd 2. v in 3. v out sot-89 top view sot-223 top view ame8805 1. v in 2. gnd 3. v out sot-223 top view ame8810 1. gnd 2. v out 3. v in 13 2 ame8805 13 2 ame8805 13 2 ame8810
ame, inc. 3 ame8805 / 8810 600ma cmos ldo n ordering information ame8810 x x x x x operating temperature range number of pins package type product grade or option special feature ame8805 x x x x x a: 3.3v e: -40 o c to 85 o c f: sot-89 t: 3 z: lead free b: 3.0v g: sot-223 c: 2.8v d: 2.5v e: 3.8v f: 3.6v g: 3.5v h: 2.7v i: 3.4v j: 2.85v k: 3.7v l: 1.5v m: 1.8v n: 2.9v o: 3.1v y: 1.9v 1: 1.3v 2: 2.0v special feature product grade or option operating temperature range package type number of pins
ame, inc. 4 600ma cmos ldo ame8805 / 8810 n ordering information part number marking output voltage package operating temp. range ame8805aeft a8805 aefww 3.3v sot-89 - 40 o c to + 85 o c ame8805aeftz a8805 aefww 3.3v sot-89 - 40 o c to + 85 o c ame8805beft a8805 befww 3.0v sot-89 - 40 o c to + 85 o c ame8805ceft a8805 cefww 2.8v sot-89 - 40 o c to + 85 o c ame8805deft a8805 defww 2.5v sot-89 - 40 o c to + 85 o c ame8805deftz a8805 defww 2.5v sot-89 - 40 o c to + 85 o c ame8805eeft a8805 eefww 3.8v sot-89 - 40 o c to + 85 o c ame8805feft a8805 fefww 3.6v sot-89 - 40 o c to + 85 o c ame8805geft a8805 gefww 3.5v sot-89 - 40 o c to + 85 o c ame8805heft a8805 hefww 2.7v sot-89 - 40 o c to + 85 o c ame8805ieft a8805 iefww 3.4v sot-89 - 40 o c to + 85 o c ame8805jeft a8805 jefww 2.85v sot-89 - 40 o c to + 85 o c ame8805keft a8805 kefww 3.7v sot-89 - 40 o c to + 85 o c ame8805left a8805 lefww 1.5v sot-89 - 40 o c to + 85 o c ame8805meft a8805 mefww 1.8v sot-89 - 40 o c to + 85 o c ame8805meftz a8805 mefww 1.8v sot-89 - 40 o c to + 85 o c ame8805neft a8805 nefww 2.9v sot-89 - 40 o c to + 85 o c ame8805oeft a8805 oefww 3.1v sot-89 - 40 o c to + 85 o c ame8805yeft a8805 yefww 1.9v sot-89 - 40 o c to + 85 o c ame88052eft a8805 2efww 2.0v sot-89 - 40 o c to + 85 o c ame8805aegt adbyww 3.3v sot-223 - 40 o c to + 85 o c ame8805aegtz adbyww 3.3v sot-223 - 40 o c to + 85 o c ame8805begt adcyww 3.0v sot-223 - 40 o c to + 85 o c ame8805cegt addyww 2.8v sot-223 - 40 o c to + 85 o c
ame, inc. 5 ame8805 / 8810 600ma cmos ldo part number marking output voltage package operating temp. range ame8805degt adeyww 2.5v sot-223 - 40 o c to + 85 o c ame8805degtz adeyww 2.5v sot-223 - 40 o c to + 85 o c ame8805eegt adfyww 3.8v sot-223 - 40 o c to + 85 o c ame8805fegt adgyww 3.6v sot-223 - 40 o c to + 85 o c ame8805gegt adhyww 3.5v sot-223 - 40 o c to + 85 o c ame8805hegt aejyww 2.7v sot-223 - 40 o c to + 85 o c ame8805iegt aeryww 3.4v sot-223 - 40 o c to + 85 o c ame8805jegt agtyww 2.85v sot-223 - 40 o c to + 85 o c ame8805kegt ahvyww 3.7v sot-223 - 40 o c to + 85 o c ame8805megt ajjyww 1.8v sot-223 - 40 o c to + 85 o c ame8805negt aksyww 2.9v sot-223 - 40 o c to + 85 o c ame8805oegt aktyww 3.1v sot-223 - 40 o c to + 85 o c AME88051EGT awlww 1.3v sot-223 - 40 o c to + 85 o c ame8810aegt adiyww 3.3v sot-223 - 40 o c to + 85 o c ame8810aegtz adiyww 3.3v sot-223 - 40 o c to + 85 o c ame8810begt adjyww 3.0v sot-223 - 40 o c to + 85 o c ame8810begtz adjyww 3.0v sot-223 - 40 o c to + 85 o c ame8810cegt adkyww 2.8v sot-223 - 40 o c to + 85 o c ame8810degt adlyww 2.5v sot-223 - 40 o c to + 85 o c ame8810eegt admyww 3.8v sot-223 - 40 o c to + 85 o c ame8810fegt adnyww 3.6v sot-223 - 40 o c to + 85 o c ame8810gegt adoyww 3.5v sot-223 - 40 o c to + 85 o c ame8810hegt aekyww 2.7v sot-223 - 40 o c to + 85 o c ame8810iegt aesyww 3.4v sot-223 - 40 o c to + 85 o c ame8810jegt agvyww 2.85v sot-223 - 40 o c to + 85 o c ame8810kegt ahxyww 3.7v sot-223 - 40 o c to + 85 o c ame8810legt ajfyww 1.5v sot-223 - 40 o c to + 85 o c ame8810megt ajgyww 1.8v sot-223 - 40 o c to + 85 o c ame8810negt akwyww 2.9v sot-223 - 40 o c to + 85 o c ame8810oegt akxyww 3.1v sot-223 - 40 o c to + 85 o c n ordering information (contd.) please consult ame sales office or authorized rep./distributor for other output voltage and package type availability.
ame, inc. 6 600ma cmos ldo ame8805 / 8810 parameter maximum unit input voltage 8 v output current 1 a input, output voltage gnd - 0.3 to v in + 0.3 v esd classification b maximum unit sot-89 180 sot-223 160 sot-89 18 sot-223 15 sot-89 550 sot-223 625 sot-89 2750* sot-223 3300* 150 o c 300 o c maximum lead temperature (10 sec) maximum junction temperature parameter thermal resistance ( q ja ) thermal resistance ( q jc ) internal power dissipation (p d ) ( d t = 100 o c, no heat sink) internal power dissipation (p d ) ( d t = 100 o c, with heat sink) o c / w o c / w mw mw n absolute maximum ratings n recommended operating conditions n thermal information * using twice the q jc for this calculation. parameter rating unit supply voltage 4.5 to 5.5 v ambient temperature range - 40 to + 85 o c junction temperature - 40 to + 125 o c caution: stress above the listed absolute maximum rating may cause permanent damage to the device
ame, inc. 7 ame8805 / 8810 600ma cmos ldo parameter symbol min typ max units input voltage v in note 1 7 v output voltage accuracy v o -1.5 1.5 % 1.3v<=v o(nom) <=1.4v 1900 1.4v= 4.0v -0.4 0.2 0.4 load regulation reg load 0.2 1 % over temperature shutdown ots 150 o c over temperature hysterisis oth 30 o c v o temperature coefficient tc 30 ppm/ o c f=1khz 50 f=10khz 20 f=100khz 15 see chart mv line regulation reg line i o =1ma v in =v o +1 to v o +2 % i o =1ma to 600ma v o >1.2v v o >1.2v v o <0.8v db psrr 30 m vrms i o =0ma test condition i o =1ma dropout voltage v dropout i o =600ma v o =v o(nom) -2.0% i o =1ma to 600ma power supply rejection output voltage noise en i o =100ma c o =2.2 m f f=10hz to 100khz i o =10ma,c byp =0 m f co=2.2 m f n electrical specifications ta = 25 o c unless otherwise noted note1: v in(min) =v out +v dropout note2: to prevent the short circuit current protection feature from being prematurely activated, the input voltage must be applied before a current source load is applied.
ame, inc. 8 600ma cmos ldo ame8805 / 8810 the ame8805/8810 family of cmos regulators con- tain a pmos pass transistor, voltage reference, error am- plifier, over-current protection, and thermal shutdown. 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 600ma. during thermal shutdown, the output voltage remains low. normal op- eration is restored when the junction temperature drops below 120 o c. the ame8805/8810 switches from voltage mode to cur- rent mode when the load exceeds the rated output cur- rent. this prevents over-stress. the ame8805/8810 also incorporates current foldback to reduce power dissipa- tion when the output is short circuited. this feature be- comes 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 detailed description n external capacitors the ame8805/8810 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. un- fortunately, large value ceramic capacitors are compara- tively expensive. one option is to parallel a 0.1 m f ce- ramic capacitor with a 10 m f aluminum electrolytic. the benefit is low esr, high capacitance, and low overall cost. a second capacitor is recommended between the in- put and ground to stabilize vin. 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. 9 ame8805 / 8810 600ma cmos ldo time( 20ms/div) c l =2.2 m f c in =2.2 m f output i load 0 i l (200ma/div) v o (5mv/div) ground current vs. input voltage load step (1ma-600ma) drop out voltage vs. output voltage power supply rejection ratio line transient response safe operating area output current (ma) input output votage differential (v) 10 100 600 sot-89 free air sot-223 free air sot-89 heat sink sot-223 heat sink 0.1 1.0 8.0 tim e (2ms/div) v o (1mv/div) v in (1v/div) v indc =5.0v c l =2.2 m f psrr (db) 100ma 10ma 1ma 100 m a 100ma 100 m a c l =2.2 m f tantalum c byp =0 -80 -70 -60 -50 -40 -30 -20 -10 0 10 1k 100k frequency (hz) 10m ground current ( m m m m a) input voltage (v) 0 5 10 15 20 25 30 35 40 45 012345678 85 o c 25 o c 0 200 400 600 800 1000 1200 12 34 5 6 i load =600ma drop out voltage (mv) output voltage (v)
ame, inc. 10 600ma cmos ldo ame8805 / 8810 short circuit response overtemperature shutdown current limit response noise measurement time (20ms/div) vo (1mv div) c l =2.2 m f no filter v out (1v/div) i out (200ma/div) tim e (0.5sec/div) 0 0 r load =6.6 w i out (200ma/div) v out (1v/div) tim e (2ms/div) c load =2.2 m f c in =1.0 m f r load =3.3 w v outnom =3.3v tim e (2ms/div) c load =2.2 m f c in =1 m f r load <100m w v out (1v/div) i out (200mv/div)
ame, inc. 11 ame8805 / 8810 600ma cmos ldo n package dimension sot-223 sot-89 min max min max a 1.39 1.60 0.05472 0.06299 a 1 c 0.35 0.44 0.01378 0.01732 d 4.39 4.60 0.17283 0.1811 d 1 1.35 1.83 0.05315 0.07205 e 2.28 3.60 0.08976 0.14173 e h s1 0.8ref 0.0315ref symbols millimeters inches 3.00ref 0.70ref 1.50ref 0.1181ref 0.0276ref 0.0590ref a h a1 top view side view front view d d1 e e c polish polish matte finish s1 c 13 o (4x) top view side view c d b1 h e e a1 b 13 o (4x) front view f min max min max a 1 0.02 0.10 0.0008 0.0039 b 0.60 0.84 0.0236 0.0330 b 1 2.90 3.15 0.1140 0.1240 c 0.24 0.38 0.0094 0.0150 d 6.30 6.71 0.2480 0.2640 e 3.30 3.71 0.1299 0.1460 e f 1.40 1.80 0.0560 0.0702 h 6.70 7.30 0.2638 0.2874 0 o 10 o 0 o 10 o 2.30 bsc 0.0906 bsc millimeters inches symbols
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. , december 2003 document: 2006-ds8805/8810-k corporate headquarter u.s.a. (subsidiary) ame, inc. analog microelectronics, inc. 2f, 189 kang-chien road, nei-hu district 3100 de la cruz blvd., suite 201 taipei 114, taiwan, r.o.c. santa clara, ca. 95054-2046 tel : 886 2 2627-8687 tel: (408) 988-2388 fax: 886 2 2659-2989 fax: (408) 988-2489 www.ame.com.tw e-mail: sales@ame.com.tw

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