ame, inc. 1 ame8824 300ma cmos ldo n typical application n functional block diagram l very low dropout voltage l guaranteed 300ma output l typical accuracy within 2% l 30 m a quiescent current l over-temperature shutdown l current limiting l short circuit current fold-back l power good detector (6 pin version only) l power-saving shutdown mode l space-saving sot-26 l adjustable output voltages l low temperature coefficient the ame8824 family of positive, linear regulators fea- ture low quiescent current (30 m a typ.) with low dropout voltage, making them ideal for battery applications. the space-saving sot-26 package 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 sot-26 version also features a "power good" de- tector, which pulls low when the output is out of regula- tion. the ame8824 is stable with an output capacitance 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 v out = 1.2 (r1 +r2)/r2 c2 is unnecessary when r1 or r2 < 20k pg pin is only available in the sot-26 package option gnd out in adj pg overcurrent shutdown thermal shutdown en v ref =1.2v v ref x90% v ref x110% amp out in c3 2.2 m m m m f 5v c2 100p r1 r2 c1 1 m m m m f ame8824 in en pg adj out gnd
ame, inc. 2 300ma cmos ldo ame8824 n advanced application 10k ame 8824 adj en v o v in 100 m m m m v o =1.2v v in =3.3v 100 m m m m 100k 100 ohm 1 m m m m pg gnd
ame, inc. 3 ame8824 300ma cmos ldo n pin configuration ame8824 1. v in 2. gnd 3. en 4. pg 5. adj 6. v out n ordering information ww: represents the date code please consult ame sales office or authorized rep./distributor for other voltage accuracy and package type avail- ability. sot-26 top view 13 2 6 4 5 ame8824 part number marking output voltage package operating temp. range AME8824AEEY aueww adj sot-26 - 40 o c to + 85 o c ame8824a eeyz aueww adj sot-26 - 40 o c to + 85 o c
ame, inc. 4 300ma cmos ldo ame8824 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 n thermal information caution: stress above the listed absolute maximum rating may cause permanent damage to the device parameter maximum unit input voltage 8 v output current p d / (v in - v o )ma input, output voltage gnd - 0.3 to v in + 0.3 v esd classification b maximum unit thermal resistance ( q ja )sot-26260 o c / w internal power dissipation (p d ) ( d t = 100 o c) sot-26 380 mw 150 o c 300 o c maximum lead temperature (10 sec) maximum junction temperature parameter
ame, inc. 5 ame8824 300ma cmos ldo parameter symbol min typ max units input voltage v in note 1 7 v output voltage v o -3 3 % 1.2v<=v o(nom) <=2.0v 1300 2.0v= 2.0v 0.02 0.1 % load regulation reg load 0.2 1 % over temerature shutdown ots 150 o c over temerature hysterisis oth 30 o c v o temperature coefficient tc 30 ppm/ o c f=1khz 50 f=10khz 20 f=100khz 15 adj input bias current i adj 1 m a adj reference voltage v ref 1.176 1.2 1.224 v v eh 2.0 vin v v el 00.4v i eh 0.1 m a i el 0.5 m a shutdown supply current i sd 0.5 1 m a shutdown output voltage v o , sd 00.1v output under voltage v uv 85 %v o(nom) output over voltage v ov 115 %v o(nom) pg leakage current i lc 1 m a pg voltage rating v pg 7v pg voltage low v ol 0.4 v i o =1ma dropout voltage v dropout test condition psrr db i o =300ma v o =v onom -2.0% mv v o >1.2v v o >1.2v v o <0.8v i o =0ma i o =1ma to 300ma line regulation reg line i o =5ma v in =v o +1 to v o +2 i o =1ma to 300ma output voltage noise en f=10hz to 100khz i o =10ma,c by p =0 m f power supply rejection i o =100ma c o =2.2 m f m vrms v in =5v, v o =0v, v en ame, inc. 6 300ma cmos ldo ame8824 n package dimension sot-26 side view l c 1 top view s1 d e e h front view b a a1 min max min max a a 1 0.00 0.15 0.0000 0.0059 b 0.30 0.55 0.0118 0.0217 d 2.70 3.10 0.1063 0.1220 e 1.40 1.80 0.0551 0.0709 e h 2.60 3.00 0.10236 0.11811 l 1 0 o 10 o 0 o 10 o s 1 1.90 bsc 0.0748 bsc symbols millimeters inches 1.20ref 0.0472ref 0.37ref 0.0146ref 0.95ref 0.0374ref
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. , auguest 2003 document: 2006-ds8824-b 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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