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ame, inc. 1 ame8815 1.5a cmos ldo n typical application n functional block diagram l very low dropout voltage l guaranteed 1.5a output l accurate to within 1.5% l 45 m a quiescent current typically l over-temperature shutdown l current limiting l short circuit current fold-back l space-saving dpak and sot223, to-220 package l low temperature coefficient the ame8815 family of linear regulators feature low quiescent current (45 m a typ.) with low dropout voltage, making them ideal for battery applications. it is available in d 2 pak and to-220 packages. the space-efficient sot- 223 and dpak package are attractive for "pocket" and "hand held" applications. output voltages are set at the factory and trimmed to 1.5% accuracy. these rugged devices have both thermal shutdown, and current fold-back to prevent device failure under the "worst" of operating conditions. the ame8815 is stable with an output capacitance of 4.7 m f or greater. l instrumentation l portable electronics l wireless devices l pc peripherals l battery powered widgets n general description n features n applications 4.7 m m m m f ame8815 out in c2 c1 1 m m m m f in gnd out overcurrent shutdown thermal shutdown amp gnd out in r1 r2
ame, inc. 2 1.5a cmos ldo ame8815 n pin configuration ame 8815aegtxxx 1. v in 2. gnd (heat sink) 3. v out sot-223 top view sot-223 top view ame 8815begtxxx 1. gnd 2. v out (heat sink) 3. v in to-252(dpak-2) top view to-252(dpak-2) top view ame 8815aecsxxx 1. v in 2. gnd (heat sink) 3. v out ame 8815becsxxx 1. gnd 2. v out (heat sink) 3. v in to-220 top view to-220 top view ame 8815aebtxxx 1. v in 2. gnd (heat sink) 3. v out ame 8815bebtxxx 1. gnd 2. v out (heat sink) 3. v in 13 2 ame8815 13 2 ame8815 1 3 2 ame8815 1 3 2 ame8815 amexxxx 1 ame8815 23 amexxxx 1 ame8815 23
ame, inc. 3 ame8815 1.5a cmos ldo n ordering information operating temperature range number of pins package type pin configuration special feature ame8815 x x x x x x voltage a: 1. vin e: -40 o c to 85 o c b: to-220 s: 2 150: v=1.5v z: lead free 2. gnd c: to-252 (d pack) t: 3 180: v=1.8v 3. vout d: to-263 250: v=2.5v b: 1. gnd g: sot223 330: v=3.3v 2. vout 475: v=4.75v 3. vin 500: v=5.0v special feature pin configuration voltage operating temperature range package type number of pins
ame, inc. 4 1.5a cmos ldo ame8815 n ordering information (contd.) part number marking output voltage package operating temp. range ame8815aebt150 ame8815 aebt150 yyww 1.50 to-220 - 40 o c to + 85 o c ame8815aebt180 ame8815 aebt180 yyww 1.80 to-220 - 40 o c to + 85 o c ame8815aebt250 ame8815 aebt250 yyww 2.50 to-220 - 40 o c to + 85 o c ame8815aebt330 ame8815 aebt330 yyww 3.30 to-220 - 40 o c to + 85 o c ame8815aebt475 ame8815 aebt475 yyww 4.75 to-220 - 40 o c to + 85 o c ame8815aebt500 ame8815 aebt500 yyww 5.00 to-220 - 40 o c to + 85 o c ame8815aecs150 ame8815 aecs150 yyww 1.50 to-252 - 40 o c to + 85 o c ame8815aecs180 ame8815 aecs180 yyww 1.80 to-252 - 40 o c to + 85 o c ame8815aecs250 ame8815 aecs250 yyww 2.50 to-252 - 40 o c to + 85 o c ame8815aecs330 ame8815 aecs330 yyww 3.30 to-252 - 40 o c to + 85 o c ame8815aecs475 ame8815 aecs475 yyww 4.75 to-252 - 40 o c to + 85 o c ame8815aecs500 ame8815 aecs500 yyww 5.00 to-252 - 40 o c to + 85 o c
ame, inc. 5 ame8815 1.5a cmos ldo n ordering information (contd.) part number marking output voltage package operating temp. range ame8815aeds150 ame8815 aeds150 yyww 1.50 to-263 - 40 o c to + 85 o c ame8815aeds180 ame8815 aeds180 yyww 1.80 to-263 - 40 o c to + 85 o c ame8815aeds250 ame8815 aeds250 yyww 2.50 to-263 - 40 o c to + 85 o c ame8815aeds330 ame8815 aeds330 yyww 3.30 to-263 - 40 o c to + 85 o c ame8815aeds475 ame8815 aeds475 yyww 4.75 to-263 - 40 o c to + 85 o c ame8815aeds500 ame8815 aeds500 yyww 5.00 to-263 - 40 o c to + 85 o c ame8815aegt150 aspyww 1.50 sot-223 - 40 o c to + 85 o c ame8815aegt150z aspyww 1.50 sot-223 - 40 o c to + 85 o c ame8815aegt180 aquyww 1.80 sot-223 - 40 o c to + 85 o c ame8815aegt180z aquyww 1.80 sot-223 - 40 o c to + 85 o c ame8815aegt250 apryww 2.50 sot-223 - 40 o c to + 85 o c ame8815aegt250z apryww 2.50 sot-223 - 40 o c to + 85 o c ame8815aegt330 akcyww 3.30 sot-223 - 40 o c to + 85 o c AME8815AEGT330Z akcyww 3.30 sot-223 - 40 o c to + 85 o c ame8815aegt475 aqryww 4.75 sot-223 - 40 o c to + 85 o c ame8815aegt500 aqsyww 5.00 sot-223 - 40 o c to + 85 o c
ame, inc. 6 1.5a cmos ldo ame8815 n ordering information (contd.) part number marking output voltage package operating temp. range ame8815bebt150 ame8815 bebt150 yyww 1.50 to-220 - 40 o c to + 85 o c ame8815bebt180 ame8815 bebt180 yyww 1.80 to-220 - 40 o c to + 85 o c ame8815bebt250 ame8815 bebt250 yyww 2.50 to-220 - 40 o c to + 85 o c ame8815bebt330 ame8815 bebt330 yyww 3.30 to-220 - 40 o c to + 85 o c ame8815bebt475 ame8815 bebt475 yyww 4.75 to-220 - 40 o c to + 85 o c ame8815bebt500 ame8815 bebt500 yyww 5.00 to-220 - 40 o c to + 85 o c ame8815becs150 ame8815 becs150 yyww 1.50 to-252 - 40 o c to + 85 o c ame8815becs180 ame8815 becs180 yyww 1.80 to-252 - 40 o c to + 85 o c ame8815becs250 ame8815 becs250 yyww 2.50 to-252 - 40 o c to + 85 o c ame8815becs330 ame8815 becs330 yyww 3.30 to-252 - 40 o c to + 85 o c ame8815becs475 ame8815 becs475 yyww 4.75 to-252 - 40 o c to + 85 o c ame8815becs500 ame8815 becs500 yyww 5.00 to-252 - 40 o c to + 85 o c
ame, inc. 7 ame8815 1.5a cmos ldo n ordering information (contd.) please consult ame sales office or authorized rep./distributor for other output voltage and package type availability. part number marking output voltage package operating temp. range ame8815beds150 ame8815 beds150 yyww 1.50 to-263 - 40 o c to + 85 o c ame8815beds180 ame8815 beds180 yyww 1.80 to-263 - 40 o c to + 85 o c ame8815beds250 ame8815 beds250 yyww 2.50 to-263 - 40 o c to + 85 o c ame8815beds330 ame8815 beds330 yyww 3.30 to-263 - 40 o c to + 85 o c ame8815beds475 ame8815 beds475 yyww 4.75 to-263 - 40 o c to + 85 o c ame8815beds500 ame8815 beds500 yyww 5.00 to-263 - 40 o c to + 85 o c ame8815begt150 ajyyww 1.50 sot-223 - 40 o c to + 85 o c ame8815begt150z ajyyww 1.50 sot-223 - 40 o c to + 85 o c ame8815begt180 ajzyww 1.80 sot-223 - 40 o c to + 85 o c ame8815begt180z ajzyww 1.80 sot-223 - 40 o c to + 85 o c ame8815begt250 akbyww 2.50 sot-223 - 40 o c to + 85 o c ame8815begt250z akbyww 2.50 sot-223 - 40 o c to + 85 o c ame8815begt330 akdyww 3.30 sot-223 - 40 o c to + 85 o c ame8815begt330z akdyww 3.30 sot-223 - 40 o c to + 85 o c ame8815begt475 amnyww 4.75 sot-223 - 40 o c to + 85 o c ame8815begt500 aqtyww 5.00 sot-223 - 40 o c to + 85 o c
ame, inc. 8 1.5a cmos ldo ame8815 parameter maximum unit input voltage 8 v output current p d / (v in - v o )ma output voltage gnd - 0.3 to v dd + 0.3 v esd classification b parameter rating unit ambient temperature range - 40 to + 85 o c junction temperature - 40 to + 125 o c n absolute maximum ratings n recommended operating conditions caution: stress above the listed absolute maximum rating may cause permanent damage to the device
ame, inc. 9 ame8815 1.5a cmos ldo n thermal information note1:conductive and non-conductive are die attach epoxy characteristics unit sot-223 to-252 (dpak) to-263 (d 2 pak) to-220 conductive 7 non-conductive 31 conductive 7 non-conductive 30 conductive 7 non-conductive 27 conductive 7 non-conductive 24 sot-223 to-252 (dpak) to-263 (d 2 pak) to-220 o c o c maximum lead temperature (10 sec) internal power dissipation (p d ) ( d t = 100 o c) mw o c / w o c / w 625 1200 2800 3000 150 parameter thermal resistance ( q ja ) maximum junction temperature thermal resistance ( q jc ) 300 maximum sot-223 to-220 to-263 (d 2 pak) to-252 (dpak) 160 90 60 50
ame, inc. 10 1.5a cmos ldo ame8815 parameter symbol min typ max units input voltage v in note 1 7 v output voltage accuracy v o -1.5 1.5 % 1.4v v o >= 2.0v -0.1 0.02 0.1 % 4.0v <= v o -0.4 0.4 % load regulation reg load -1 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 m vrms dropout voltage v dropout db psrr i o =1ma to 1500ma line regulation reg line i o =1ma v in =v o +1 to v o +2 30 f=10hz to 100khz i o =10ma co=4.7 m f i o =1ma i o =1.5a v o =v o(nom) -2.0% mv v o >1.2v v o >1.2v v in = v o(nom) +1v, v o <0.4v see chart test condition i o =0ma i o =1ma to 1500ma i o =100ma c o =4.7 m f power supply rejection output voltage noise en n electrical specifications v in = v o(nom) +2v, ta = 25 o c unless otherwise noted note1:v in(min) =v out +v dropout
ame, inc. 11 ame8815 1.5a cmos ldo the ame8815 family of cmos regulators contain a pmos pass transistor, voltage reference, error amplifier, 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 ampli- fier compares the output voltage to a precision reference. over-current and thermal shutdown circuits become ac- tive when the junction temperature exceeds 150 o c, or the current exceeds 2.2a. during thermal shutdown, the output voltage remains low. normal operation is restored when the junction temperature drops below 120 o c. the ame8815 behaves like a current source when the load reaches 2.2a. however, if the load impedance drops below 0.3 ohms, the current drops back to 600ma to prevent excessive power dissipation. normal operation is restored when the load resistance exceeds 0.75 ohms. n detailed description n external capacitors the ame8815 is stable with an output capacitor to ground of 4.7 m f or greater. ceramic capacitors have the lowest esr, and will offer the best ac performance. con- versely, aluminum electrolytic capacitors exhibit the high- est esr, resulting in the poorest ac response. unfortu- nately, large value ceramic capacitors are comparatively expensive. one option is to parallel a 0.1 m f ceramic 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. 12 1.5a cmos ldo ame8815 dropout voltage vs. i load quiescent current vs. temperature ground current vs. v in v out vs. temperature(2.5v) ground current vs. load current dropout voltage vs. v out dropout voltage (v) i load (a) 0 0.2 0.4 0.6 0.8 1 1.2 0 0.3 0.6 0.9 1.2 1.5 1.8 1.8 2.0 2.1 2.8 3.3 v out =1.5 dropout voltage (v) v out (v) 0 0.2 0.4 0.6 0.8 1 02468 i load =1.5a i load =1.0a i load =0.5a temperature ( o c) quiescent current @ 5v (ua) 25 27 29 31 33 35 37 39 41 -45 -5 25 55 85 115 2.475 2.480 2.485 2.490 2.495 2.500 -45-5255585115 output voltage (v) temperature ( o c) ground current ( m m m m a) v in (v) 10 15 20 25 30 35 40 45 50 234 5678 i out = 140ma v out = 1.5v ground current ( m m m m a) load current (ma) 34.5 35 35.5 36 36.5 37 37.5 38 38.5 0 0.25 0.5 0.75 1 1.25 1.5 v in = 2.5v v out = 1.5v
ame, inc. 13 ame8815 1.5a cmos ldo load step 40ma to 1.5a dropout voltage vs. load current(2.5v) line transient response load regulation vs. temperature current limit response current limit vs. v in load regulation (%) temperature ( o c) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 -45 -5 25 55 85 115 i load 1a/div v out 1v/div time 1ms/div i lim i sc 0a 0v v in = 5v c in = 4.7 m f c out = 4.7 m f 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 2345678 current limit (a) v in (v) c in = 4.7 m f c out = 4.7 m f v out = 1.8v 0 50 100 150 200 250 300 350 400 0.3 0.6 0.9 1.2 1.5 115 o c 85 o c 55 o c 25 o c -5 o c -45 o c load current (a) dropout voltage @1.5a (mv) v out 10mv/div i load 1a/div time 500 m m m m s/div 0a c in = 4.7 m f c out = 4.7 m f v in = 4.0v v out = 1.8v v in (2v/div) v out (50mv/div) time (20ms/div) c in = 4.7 m f c out = 4.7 m f t r = t f = 1 m s vout = 1.5v 0v
ame, inc. 14 1.5a cmos ldo ame8815 short circuit current vs. v in overtemperature shutdown stability vs. esr vs. i load stability vs. esr vs. i load stability vs. esr vs. i load short circuit current (a) v in (v) 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 2345678 c in = 4.7 m f c out = 4.7 m f v out 1v/div i out 1a/div time 100ms/div 0v 0a v in = 4v c in = 4.7 m f c out = 4. 7m f c l esr ( w w w w ) iload (ma) 0.01 0.1 1 10 100 1000 10000 0 250 500 750 1000 1250 1500 stable region untested region unstable region c l =5 m f 0.01 0.1 1 10 100 1000 10000 0 250 500 750 1000 1250 1500 stable region untested region unstable region c l =2 m f c l esr ( w w w w ) iload (ma) 0.001 0.01 0.1 1 10 100 1000 10000 0 250 500 750 1000 1250 1500 stable region untested region unstable region c l =10 m f c l esr ( w w w w ) iload (ma)
ame, inc. 15 ame8815 1.5a cmos ldo to-220 top view side view g i p o m n k d e c a min max min max a 5.58 7.49 0.2197 0.2949 c 3.55 4.83 0.1398 0.1900 d 0.50 1.40 0.0197 0.0550 e 0.30 1.15 0.0118 0.0453 g 9.65 10.67 0.3799 0.4200 i 3.53 4.09 0.1390 0.1610 k 0.50 1.15 0.0197 0.0453 m 1.14 1.78 0.0449 0.0700 n 2.28 2.80 0.0898 0.1102 o 12.70 14.74 0.5000 0.5803 p 14.22 16.51 0.5600 0.6500 symbols millimeters inches n package dimension sot-223 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 h 6.70 7.30 0.2638 0.2874 0 o 10 o 0 o 10 o f 1.40 1.80 0.0560 0.0702 2.30 bsc 0.0906 bsc millimeters inches symbols c 13 o (4x) top view side view c d b1 h e e a1 b 13 o (4x) front view f
ame, inc. 16 1.5a cmos ldo ame8815 min max min max a 0.45 0.58 0.0177 0.0230 b 1.60 1.95 0.0630 0.0768 c 0.51 1.50 0.0201 0.0591 d 0.45 0.60 0.0177 0.0236 e 6.40 6.80 0.2520 0.2677 f 5.40 7.20 0.2126 0.2835 g 2.20 2.85 0.0866 0.1122 h - * 2.30 - * 0.0906 j - 0.97 - 0.0380 k 5.20 5.50 0.2047 0.2165 l 1.40ref 0.055ref symbols millimeters inches n package dimension to-252(dpak)-eiaj to-252(dpak)-jedc *: typical value notes: 1. controlling dimension: millimeters. 2. maximum lead thickness includes lead finish thickness mini- mum lead thickness is the minimum thickness of base material. c g f l top view side view e k b a d h j top view side view d c b a j f g l e k h min max min max a 0.49 0.51 0.0192 0.0201 b 1.79 1.81 0.0704 0.0713 c 0.55 - 0.0216 - d 0.49 0.51 0.0192 0.0201 e 6.58 6.62 0.259 0.2606 f 6.08 6.12 0.2393 0.2409 g 2.68 2.72 0.1055 0.1071 h j k 5.31 5.37 0.2090 0.2114 l 0.68 0.72 0.0267 0.0283 symbols millimeters inches * 2.30ref * 0.0906ref 0.96 0.0377 *: typical value notes: 1. controlling dimension: millimeters. 2. maximum lead thickness includes lead finish thickness mini- mum lead thickness is the minimum thickness of base material.
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 2004 document: 2013-ds8815-n 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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