View AME8812SEEV_1432651.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

ame, inc. 1 ame8801 / 8812 / 8840 300ma cmos ldo n typical application n functional block diagram 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 noise reduction bypass capacitor l power-saving shutdown mode l space-saving sot-25, sot-26 package l factory pre-set output voltages l low temperature coefficient the ame8801/8812/8840 family of positive, linear regu- lators feature low quiescent current (30 m a typ.) with low dropout voltage, making them ideal for battery applica- tions. the space-saving sot-23-5 package is 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. in applications requiring a low noise, regulated supply, place a 1000 pf capacitor between bypass and ground. the ame8801 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 ame8801 ame8812 ame8840 output input c3 2.2 m m m m f c1 1 m m m m f gnd out 5v en byp in c2 1000pf amp gnd out in r1 r2 v ref =1.215v byp overcurrent shutdown thermal shutdown en
ame, inc. 2 300ma cmos ldo ame8801 / 8812 / 8840 n pin configuration ame8801 1. v in 2. gnd 3. en 4. byp 5. out sot-25 top view sot-25 top view sot-25 top view sot-26 top view ame8801 1. out_1 2. gnd 3. byp 4. en 5. v in 6. out_2 ame8812 1. en 2. gnd 3. v in 4. out 5. byp ame8840 1. en 2. gnd 3. byp 4. out 5. v in 13 2 5 4 ame8812 13 2 5 4 ame8840 13 2 6 4 5 ame8801 13 2 5 4 ame8801
ame, inc. 3 ame8801 / 8812 / 8840 300ma cmos ldo n ordering information ame8812 x x x x x operating temperature range number of pins package type product grade or option special feature ame8801 x x x x x ame8840 x x x x x a: 3.3v e: -40 o c to 85 o c e: sot-2x v: 5 l: low profile b: 3.0v y: 6 y: lead free & low profile c: 2.8v z: lead free 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 s: 5.0v special feature product grade or option operating temperature range package type number of pins
ame, inc. 4 300ma cmos ldo ame8801 / 8812 / 8840 n ordering information part number marking output voltage package operating temp. range ame8801aeev aafww 3.3v sot-25 - 40 o c to + 85 o c ame8801beev aagww 3.0v sot-25 - 40 o c to + 85 o c ame8801ceev aahww 2.8v sot-25 - 40 o c to + 85 o c ame8801ceevz aahww 2.8v sot-25 - 40 o c to + 85 o c ame8801deev aaiww 2.5v sot-25 - 40 o c to + 85 o c ame8801eeev aajww 3.8v sot-25 - 40 o c to + 85 o c ame8801feev aboww 3.6v sot-25 - 40 o c to + 85 o c ame8801feevz aboww 3.6v sot-25 - 40 o c to + 85 o c ame8801geev acfww 3.5v sot-25 - 40 o c to + 85 o c ame8801heev aegww 2.7v sot-25 - 40 o c to + 85 o c ame8801ieev aeoww 3.4v sot-25 - 40 o c to + 85 o c ame8801jeev agqww 2.85v sot-25 - 40 o c to + 85 o c ame8801jeevz agqww 2.85v sot-25 - 40 o c to + 85 o c ame8801keev ahsww 3.7v sot-25 - 40 o c to + 85 o c ame8801leev ajoww 1.5v sot-25 - 40 o c to + 85 o c ame8801meev ajpww 1.8v sot-25 - 40 o c to + 85 o c ame8801neev akoww 2.9v sot-25 - 40 o c to + 85 o c ame8801oeev akpww 3.1v sot-25 - 40 o c to + 85 o c ame8801oeevz akpww 3.1v sot-25 - 40 o c to + 85 o c ame8801seev aqxww 5.0v sot-25 - 40 o c to + 85 o c ame8801jeey aruww 2.85v sot-26 - 40 o c to + 85 o c ame8812aeev aseww 3.3v sot-25 - 40 o c to + 85 o c ame8812beev asfww 3.0v sot-25 - 40 o c to + 85 o c ame8812ceev augww 2.8v sot-25 - 40 o c to + 85 o c ame8812deev arsww 2.5v sot-25 - 40 o c to + 85 o c ame8812deevz arsww 2.5v sot-25 - 40 o c to + 85 o c ame8812eeev auhww 3.8v sot-25 - 40 o c to + 85 o c ame8812feev auiww 3.6v sot-25 - 40 o c to + 85 o c ame8812geev a ujww 3.5v sot-25 - 40 o c to + 85 o c ame8812heev aukww 2.7v sot-25 - 40 o c to + 85 o c ame8812ieev aulww 3.4v sot-25 - 40 o c to + 85 o c
ame, inc. 5 ame8801 / 8812 / 8840 300ma 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 ame8812jeev arfww 2.85v sot-25 - 40 o c to + 85 o c ame8812jeevz arfww 2.85v sot-25 - 40 o c to + 85 o c ame8812keev aumww 3.7v sot-25 - 40 o c to + 85 o c ame8812leev aunww 1.5v sot-25 - 40 o c to + 85 o c ame8812meev auoww 1.8v sot-25 - 40 o c to + 85 o c ame8812meevz auoww 1.8v sot-25 - 40 o c to + 85 o c ame8812neev aupww 2.9v sot-25 - 40 o c to + 85 o c ame8812oeev auqww 3.1v sot-25 - 40 o c to + 85 o c AME8812SEEV aurww 5.0v sot-25 - 40 o c to + 85 o c ame8840aeev alcww 3.3v sot-25 - 40 o c to + 85 o c ame8840beev aldww 3.0v sot-25 - 40 o c to + 85 o c ame8840ceev aleww 2.8v sot-25 - 40 o c to + 85 o c ame8840deev alfww 2.5v sot-25 - 40 o c to + 85 o c ame8840eeev algww 3.8v sot-25 - 40 o c to + 85 o c ame8840feev alhww 3.6v sot-25 - 40 o c to + 85 o c ame8840geev aliww 3.5v sot-25 - 40 o c to + 85 o c ame8840heev aljww 2.7v sot-25 - 40 o c to + 85 o c ame8840ieev alkww 3.4v sot-25 - 40 o c to + 85 o c ame8840jeev allww 2.85v sot-25 - 40 o c to + 85 o c ame8840keev almww 3.7v sot-25 - 40 o c to + 85 o c ame8840leev alnww 1.5v sot-25 - 40 o c to + 85 o c ame8840meev aloww 1.8v sot-25 - 40 o c to + 85 o c ame8840neev alpww 2.9v sot-25 - 40 o c to + 85 o c ame8840oeev alqww 3.1v sot-25 - 40 o c to + 85 o c
ame, inc. 6 300ma cmos ldo ame8801 / 8812 / 8840 parameter maximum unit input voltage 8 v output current p d / (v in - v o )ma output voltage gnd - 0.3 to v in + 0.3 v esd classification b maximum unit thermal resistance ( q ja )sot-25260 o c / w internal power dissipation (p d ) (dt = 100 o c) sot-25 380 mw thermal resistance ( q ja )sot-26260 o c / w internal power dissipation (p d ) (dt = 100 o c) sot-26 380 mw 150 o c maximum junction temperature parameter 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
ame, inc. 7 ame8801 / 8812 / 8840 300ma cmos ldo parameter symbol min typ max units input voltage v in note 1 7 v -1.5 1.5 -2.5 2.5 1.2v<=v o(nom) <=2.0v 1300 2.0v1.2v v o <0.8v i o =0ma i o =1ma to 300ma i o =1ma to 300ma psrr test condition i o =300ma output voltage accuracy v o i o =1ma m vrms en input threshold v in =2.7v to 7v v in =2.7v to 7v f=10hz to 100khz i o =10ma co=2.2 m f30 % dropout voltage v dropout i o =300ma v o =v o(nom) -2.0% v o >1.2v mv line regulation reg line i o =1ma v in =v o +1 to v o +2 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 300ma cmos ldo ame8801 / 8812 / 8840 a third capacitor can be connected between the by- pass pin and gnd. this capacitor can be a low cost polyester film variety between the value of 0.001 ~ 0.01 m f. a larger capacitor improves the ac ripple rejec- tion, but also makes the output come up slowly. this "soft" turn-on is desirable in some applications to limit turn-on surges. 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. the ame8801/8812/8840 is stable with an output ca- pacitor to ground of 2.2 m f or greater. ceramic capacitors have the lowest esr, and will offer the best ac perfor- mance. conversely, aluminum electrolytic capacitors exhibit the highest esr, resulting in the poorest ac re- sponse. unfortunately, 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. n detailed description n external capacitors n enable the enable pin normally floats high. when actively, pulled low, the pmos pass transistor shuts off, and all internal circuits are powered down. in this state, the quiescent current is less than 1 m a. this pin behaves much like an electronic switch. the ame8801/8812/8840 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 300ma. during thermal shutdown, the output voltage remains low. normal operation is re- stored when the junction temperature drops below 120 o c. the ame8801/8812/8840 switches from voltage mode to current mode when the load exceeds the rated output current. this prevents over-stress. the ame8801/8812/ 8840 also incorporates current foldback to reduce power dissipation when the output is short circuited. this fea- ture becomes active when the output drops below 0.8volts, and reduces the current flow by 65%. full current is restored when the voltage exceeds 0.8 volts.
ame, inc. 9 ame8801 / 8812 / 8840 300ma cmos ldo ground current vs. input voltage load step (1ma-300ma) chip enable transient response chip enable transient response drop out voltage vs. output voltage drop out voltage vs. load current 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 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) 0 0 output (1v/div) enable (2v/div) time ( 1ms/div) c l =2 m f r l =10 w c byp =1000pf 0 0 time ( 1ms/div) c l =2 m f r l =10 w output (1v/div) enable (2v/div) 0 50 100 150 200 250 300 2.5 2.75 3 3.25 3.5 3.75 4 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 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 bottom
ame, inc. 10 300ma cmos ldo ame8801 / 8812 / 8840 power supply rejection ratio power supply rejection ratio power supply rejection ratio power supply rejection ratio short circuit response overtemperature shutdown -80 -70 -60 -50 -40 -30 -20 10 1k 100k 10m psrr (db) frequency (hz) c l =2.2 m f tantalum c byp =1000pf 100ma 100 m a 1ma 10ma 100ma 100 m a 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 p s r r ( d b ) frequency (hz) -80 -70 -60 -50 -40 -30 -20 -10 10 100 1k 10k 100k 1m c l = 10 m f tantalum i l = 100 ma c byp = 0 c byp = 100 pf c byp = 1 nf c byp = 10 nf p s r r ( d b ) frequency (hz) -80 -70 -60 -50 -40 -30 -20 -10 10 100 1k 10k 100k c l = 5.6 m f ceramic i l = 100 ma c byp = 0 c byp = 100 pf c byp = 1 nf c byp = 10 nf r load =100 w r short =0.1 w 0 0 time (2ms/div) v out (1v/div) i load (400ma/div) v o u t ( 1 v / d i v ) i o u t ( 2 0 0 m a / d i v ) time (0.5sec/div) 0 0 r load =6.6 w tantalum
ame, inc. 11 ame8801 / 8812 / 8840 300ma cmos ldo current limit response noise measurement safe operating area line transient response stability vs. esr vs. i load stability vs. esr vs. i load time (2ms/div) 0 0 v out (1v/div) i out (200ma/div) r load =3.3 w time (20ms/div) vo (1mv div) c l =2.2 m f no filter time (2ms/div) v o (1mv/div) v in (1v/div) v indc =5.0v c l =2.2 m f output current (ma) input-output voltage differential (v) 10 100 300 0.1 1.0 8.0 sot-23-5 esr ( w w w w ) iload (ma) 0.01 0.1 1 10 100 1000 10000 0 50 100 150 200 stable region untested region unstable region c l =1 m f iload (ma) esr ( w w w w ) 0.01 0.1 1 10 100 1000 10000 0 50 100 150 200 stable region untested region unstable region c l =2 m f
ame, inc. 12 300ma cmos ldo ame8801 / 8812 / 8840 stability vs. esr vs. i load stability vs. esr vs. i load shut down current vs. temp. quiescent current vs. temp. load regulation vs. temp. en pin lo bias current vs. temp. 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 0.40 0.42 0.44 0.46 0.48 0.50 0.52 0.54 0.56 0.58 -45 -5 25 55 85 temperature ( o c) load regulation (%) -0.50 -0.45 -0.40 -0.35 -0.30 -0.25 -0.20 -45-5 255585 temperature ( o c) en pin lo bias current ( u a) 0.001 10000 0.01 0.1 1 10 100 1000 0 50 100 150 200 stable region untested region unstable region c l =10 m f iload (ma) esr ( w w w w ) 27 28 29 30 31 32 33 34 35 -45 -5 25 55 85 temperature ( o c) quiescent current @ 5v (ua) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 -45-5255585 temperature ( o c) shut down current (ua)
ame, inc. 13 ame8801 / 8812 / 8840 300ma cmos ldo dropout voltage vs. temp. pg vol vs. temp. 150 160 170 180 190 200 210 220 -45 -5 25 55 85 temperature ( o c) dropout voltage @ 300ma (mv) 0.15 0.20 0.25 0.30 0.35 0.40 0.45 -45 -5 25 55 85 temperature ( o c) pg vol @ 0.4ma (v)
ame, inc. 14 300ma cmos ldo ame8801 / 8812 / 8840 n package dimension sot-25 sot-26 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 0.07480 bsc symbols millimeters inches 1.20ref 0.0472ref 0.37bsc 0.0146bsc 0.95bsc 0.0374bsc 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 0.37ref 0.0146ref 0.95ref 0.0374ref 1.90 bsc 0.0748 bsc symbols millimeters inches 1.20ref 0.0472ref l top view side view front view c 1 d s1 e e h a1 b a side view l c 1 top view s1 d e e h front view b a a1
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. , november 2003 document: 2006-ds8801/8812/8840-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

▲Up To Search▲

Price & Availability of AME8812SEEV

	To Download AME8812SEEV Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .