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| ame 1 ame8801 / 8812 / 8840 300ma cmos ldo rev.s.02 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/tsot-25, sot-26/ tsot-26 packages l factory pre-set output voltages l low temperature coefficient l all ame' s lead free product meet rohs standards 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-25/tsot-25 & sot-26/tsot- 26 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" 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 n general description n features n applications amp gnd out in r1 r2 v ref =1.215v byp overcurrent shutdown thermal shutdown en ame8801 ame8812 ame8840 output input c3 2.2 m f c1 1 m f gnd out en byp in c2 1000pf
ame 2 300ma cmos ldo ame8801 / 8812 / 8840 rev.s.02 n pin configuration ame8801 1. in 2. gnd 3. en 4. byp 5. out * die attach: conductive epoxy sot-25/tsot-25 top view sot-25/tsot-25 top view sot-25/tsot-25 top view sot-26/tsot-26 top view ame8801 1. out1 2. gnd 3. byp 4. en 5. in 6. out2 ame8812 1. en 2. gnd 3. in 4. out 5. byp * die attach: conductive epoxy ame8840 1. en 2. gnd 3. byp 4. out 5. in * die attach: conductive epoxy 1 3 2 5 4 ame8812 1 3 2 5 4 ame8840 1 3 2 6 4 5 ame8801 1 3 2 5 4 ame8801 * die attach: non-conductive epoxy n pin description pin name pin description in input voltage pin. it should be decoupled with 1 m f or greater capacitor. gnd ground connection pin. en enable pin. when pulled low, the pmos pass transistor turns off, current consuming less than 1a. byp bypass capacitor connection. to improve ac ripple rejection, connect a capacitor to gnd. this will also provide a soft-start function. out ldo voltage regulator output pin. it should be decoupled with a 1f or greater value low esr ceramic capacitor. ame 3 ame8801 / 8812 / 8840 300ma cmos ldo rev.s.02 n ordering information ame8812 x x x x x operating ambient 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 1: 1.3v e: -40 o c to +85 o c e: sot-2x v: 5 l: low profile b: 3.0v 2: 2.0v y: 6 y: lead free & low profile c: 2.8v 3: 4.2v z: lead free d: 2.5v 4: 4.0v e: 3.8v 6: 3.45v 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 p: 4.1v q: 4.75v r: 2.65v s: 5.0v u: 3.2v v: 3.15v w: 2.3v y: 1.9v z: 1.7v product grade or option special feature operating ambient temperature range package type number of pins ame 4 300ma cmos ldo ame8801 / 8812 / 8840 rev.s.02 n ordering information note: ww represents the date code and pls refer to date code rule on package dimension. * a line on top of the first letter represents lead free plating such as awkww. please consult ame sales office or authorized rep./distributor for the availability of package type. part number marking* output voltage package operating ambient temperature range ame88012eev awkww 2.0v sot-25 - 40 o c to +85 o c ame88012eevl awkww 2.0v tsot-25 - 40 o c to +85 o c ame88012eevz awkww 2.0v sot-25 - 40 o c to +85 o c ame88012eevy awkww 2.0v tsot-25 - 40 o c to +85 o c ame8801aeev aafww 3.3v sot-25 - 40 o c to +85 o c ame8801aeevl aafww 3.3v tsot-25 - 40 o c to +85 o c ame8801aeevz aafww 3.3v sot-25 - 40 o c to +85 o c ame8801aeevy aafww 3.3v tsot-25 - 40 o c to +85 o c ame8801beev aagww 3.0v sot-25 - 40 o c to +85 o c ame8801beevl aagww 3.0v tsot-25 - 40 o c to +85 o c ame8801beevz aagww 3.0v sot-25 - 40 o c to +85 o c ame8801beevy aagww 3.0v tsot-25 - 40 o c to +85 o c ame8801ceev aahww 2.8v sot-25 - 40 o c to +85 o c AME8801CEEVL aahww 2.8v tsot-25 - 40 o c to +85 o c ame8801ceevz aahww 2.8v sot-25 - 40 o c to +85 o c ame8801ceevy aahww 2.8v tsot-25 - 40 o c to +85 o c ame8801deev aaiww 2.5v sot-25 - 40 o c to +85 o c ame8801deevl aaiww 2.5v tsot-25 - 40 o c to +85 o c ame8801deevz aaiww 2.5v sot-25 - 40 o c to +85 o c ame8801deevy aaiww 2.5v tsot-25 - 40 o c to +85 o c ame8801eeev aajww 3.8v sot-25 - 40 o c to +85 o c ame8801eeevl aajww 3.8v tsot-25 - 40 o c to +85 o c ame8801eeevz aajww 3.8v sot-25 - 40 o c to +85 o c ame8801eeevy aajww 3.8v tsot-25 - 40 o c to +85 o c ame8801feev aboww 3.6v sot-25 - 40 o c to +85 o c ame8801feevl aboww 3.6v tsot-25 - 40 o c to +85 o c ame8801feevz aboww 3.6v sot-25 - 40 o c to +85 o c ame8801feevy aboww 3.6v tsot-25 - 40 o c to +85 o c ame 5 ame8801 / 8812 / 8840 300ma cmos ldo rev.s.02 n ordering information (contd.) part number marking* output voltage package operating ambient temperature range ame8801geev acfww 3.5v sot-25 - 40 o c to +85 o c ame8801geev l acfww 3.5v tsot-25 - 40 o c to +85 o c ame8801geev z acfww 3.5v sot-25 - 40 o c to +85 o c ame8801geev y acfww 3.5v tsot-25 - 40 o c to +85 o c ame8801heev aegww 2.7v sot-25 - 40 o c to +85 o c ame8801heevl aegww 2.7v tsot-25 - 40 o c to +85 o c ame8801heevz aegww 2.7v sot-25 - 40 o c to +85 o c ame8801heevy aegww 2.7v tsot-25 - 40 o c to +85 o c ame8801ieev aeoww 3.4v sot-25 - 40 o c to +85 o c ame8801ieevl aeoww 3.4v tsot-25 - 40 o c to +85 o c ame8801ieevz aeoww 3.4v sot-25 - 40 o c to +85 o c ame8801ieevy aeoww 3.4v tsot-25 - 40 o c to +85 o c ame8801jeev agqww 2.85v sot-25 - 40 o c to +85 o c ame8801jeevl agqww 2.85v tsot-25 - 40 o c to +85 o c ame8801jeevz agqww 2.85v sot-25 - 40 o c to +85 o c ame8801jeevy agqww 2.85v tsot-25 - 40 o c to +85 o c ame8801keev ahsww 3.7v sot-25 - 40 o c to +85 o c ame8801keevl ahsww 3.7v tsot-25 - 40 o c to +85 o c ame8801keevz ahsww 3.7v sot-25 - 40 o c to +85 o c ame8801keevy ahsww 3.7v tsot-25 - 40 o c to +85 o c ame8801leev ajoww 1.5v sot-25 - 40 o c to +85 o c ame8801leevl ajoww 1.5v tsot-25 - 40 o c to +85 o c ame8801leevz ajoww 1.5v sot-25 - 40 o c to +85 o c ame8801leevy ajoww 1.5v tsot-25 - 40 o c to +85 o c ame8801meev ajpww 1.8v sot-25 - 40 o c to +85 o c ame8801meevl ajpww 1.8v tsot-25 - 40 o c to +85 o c ame8801meevz ajpww 1.8v sot-25 - 40 o c to +85 o c ame8801meevy ajpww 1.8v tsot-25 - 40 o c to +85 o c ame8801neev akoww 2.9v sot-25 - 40 o c to +85 o c ame8801neevl akoww 2.9v tsot-25 - 40 o c to +85 o c ame8801neevz akoww 2.9v sot-25 - 40 o c to +85 o c ame 6 300ma cmos ldo ame8801 / 8812 / 8840 rev.s.02 n ordering information (contd.) part number marking* output voltage package operating ambient temperature range ame8801neevy akoww 2.9v tsot-25 - 40 o c to +85 o c ame8801oeev akpww 3.1v sot-25 - 40 o c to +85 o c ame8801oeevl akpww 3.1v tsot-25 - 40 o c to +85 o c ame8801oeevz akpww 3.1v sot-25 - 40 o c to +85 o c ame8801oeevy akpww 3.1v tsot-25 - 40 o c to +85 o c ame8801seev aqxww 5.0v sot-25 - 40 o c to +85 o c ame8801seevl aqxww 5.0v tsot-25 - 40 o c to +85 o c ame8801seevz aqxww 5.0v sot-25 - 40 o c to +85 o c ame8801seevy aqxww 5.0v tsot-25 - 40 o c to +85 o c ame8801ueev axaww 5.0v sot-25 - 40 o c to +85 o c ame8801ueevl axaww 5.0v tsot-25 - 40 o c to +85 o c ame8801ueevz axaww 5.0v sot-25 - 40 o c to +85 o c ame8801ueevy axaww 5.0v tsot-25 - 40 o c to +85 o c ame8801jeey aruww 2.85v sot-26 - 40 o c to +85 o c ame8801jeeyl aruww 2.85v tsot-26 - 40 o c to +85 o c ame8801jeeyz aruww 2.85v sot-26 - 40 o c to +85 o c ame8801jeeyy aruww 2.85v tsot-26 - 40 o c to +85 o c ame8812aeev aseww 3.3v sot-25 - 40 o c to +85 o c ame8812aeevl aseww 3.3v tsot-25 - 40 o c to +85 o c ame8812aeevz aseww 3.3v sot-25 - 40 o c to +85 o c ame8812aeevy aseww 3.3v tsot-25 - 40 o c to +85 o c ame8812beev asfww 3.0v sot-25 - 40 o c to +85 o c ame8812beevl asfww 3.0v tsot-25 - 40 o c to +85 o c ame8812beevz asfww 3.0v sot-25 - 40 o c to +85 o c ame8812beevy asfww 3.0v tsot-25 - 40 o c to +85 o c ame8812ceev augww 2.8v sot-25 - 40 o c to +85 o c ame8812ceevl augww 2.8v tsot-25 - 40 o c to +85 o c ame8812ceevz augww 2.8v sot-25 - 40 o c to +85 o c ame8812ceevy augww 2.8v tsot-25 - 40 o c to +85 o c ame8812deev arsww 2.5v sot-25 - 40 o c to +85 o c ame8812deevl arsww 2.5v tsot-25 - 40 o c to +85 o c ame 7 ame8801 / 8812 / 8840 300ma cmos ldo rev.s.02 n ordering information (contd.) part number marking* output voltage package operating ambient temperature range ame8812deevz arsww 2.5v sot-25 - 40 o c to +85 o c ame8812deevy arsww 2.5v tsot-25 - 40 o c to +85 o c ame8812eeev auhww 3.8v sot-25 - 40 o c to +85 o c ame8812eeevl auhww 3.8v tsot-25 - 40 o c to +85 o c ame8812eeevz auhww 3.8v sot-25 - 40 o c to +85 o c ame8812eeevy auhww 3.8v tsot-25 - 40 o c to +85 o c ame8812feev auiww 3.6v sot-25 - 40 o c to +85 o c ame8812feevl auiww 3.6v tsot-25 - 40 o c to +85 o c ame8812feevz auiww 3.6v sot-25 - 40 o c to +85 o c ame8812feevy auiww 3.6v tsot-25 - 40 o c to +85 o c ame8812geev aujww 3.5v sot-25 - 40 o c to +85 o c ame8812geev l aujww 3.5v tsot-25 - 40 o c to +85 o c ame8812geev z aujww 3.5v sot-25 - 40 o c to +85 o c ame8812geev y aujww 3.5v tsot-25 - 40 o c to +85 o c ame8812heev aukww 2.7v sot-25 - 40 o c to +85 o c ame8812heevl aukww 2.7v tsot-25 - 40 o c to +85 o c ame8812heevz aukww 2.7v sot-25 - 40 o c to +85 o c ame8812heevy aukww 2.7v tsot-25 - 40 o c to +85 o c ame8812ieev aulww 3.4v sot-25 - 40 o c to +85 o c ame8812ieevl aulww 3.4v tsot-25 - 40 o c to +85 o c ame8812ieevz aulww 3.4v sot-25 - 40 o c to +85 o c ame8812ieevy aulww 3.4v tsot-25 - 40 o c to +85 o c ame8812jeev arfww 2.85v sot-25 - 40 o c to +85 o c ame8812jeevl arfww 2.85v tsot-25 - 40 o c to +85 o c ame8812jeevz arfww 2.85v sot-25 - 40 o c to +85 o c ame8812jeevy arfww 2.85v tsot-25 - 40 o c to +85 o c ame8812keev aumww 3.7v sot-25 - 40 o c to +85 o c ame8812keevl aumww 3.7v tsot-25 - 40 o c to +85 o c ame8812keevz aumww 3.7v sot-25 - 40 o c to +85 o c ame8812keevy aumww 3.7v tsot-25 - 40 o c to +85 o c ame8812leev aunww 1.5v sot-25 - 40 o c to +85 o c ame 8 300ma cmos ldo ame8801 / 8812 / 8840 rev.s.02 n ordering information (contd.) part number marking* output voltage package operating ambient temperature range ame8812leevl aunww 1.5v tsot-25 - 40 o c to +85 o c ame8812leevz aunww 1.5v sot-25 - 40 o c to +85 o c ame8812leevy aunww 1.5v tsot-25 - 40 o c to +85 o c ame8812meev auoww 1.8v sot-25 - 40 o c to +85 o c ame8812meevl auoww 1.8v tsot-25 - 40 o c to +85 o c ame8812meevz auoww 1.8v sot-25 - 40 o c to +85 o c ame8812meevy auoww 1.8v tsot-25 - 40 o c to +85 o c ame8812neev aupww 2.9v sot-25 - 40 o c to +85 o c ame8812neevl aupww 2.9v tsot-25 - 40 o c to +85 o c ame8812neevz aupww 2.9v sot-25 - 40 o c to +85 o c ame8812neevy aupww 2.9v tsot-25 - 40 o c to +85 o c ame8812oeev auqww 3.1v sot-25 - 40 o c to +85 o c ame8812oeevl auqww 3.1v tsot-25 - 40 o c to +85 o c ame8812oeevz auqww 3.1v sot-25 - 40 o c to +85 o c ame8812oeevy auqww 3.1v tsot-25 - 40 o c to +85 o c ame8812seev aurww 5.0v sot-25 - 40 o c to +85 o c ame8812seevl aurww 5.0v tsot-25 - 40 o c to +85 o c ame8812seevz aurww 5.0v sot-25 - 40 o c to +85 o c ame8812seevy aurww 5.0v tsot-25 - 40 o c to +85 o c ame8840aeev alcww 3.3v sot-25 - 40 o c to +85 o c ame8840aeevl alcww 3.3v tsot-25 - 40 o c to +85 o c ame8840aeevz alcww 3.3v sot-25 - 40 o c to +85 o c ame8840aeevy alcww 3.3v tsot-25 - 40 o c to +85 o c ame8840beev aldww 3.0v sot-25 - 40 o c to +85 o c ame8840beevl aldww 3.0v tsot-25 - 40 o c to +85 o c ame8840beevz aldww 3.0v sot-25 - 40 o c to +85 o c ame8840beevy aldww 3.0v tsot-25 - 40 o c to +85 o c ame8840ceev aleww 2.8v sot-25 - 40 o c to +85 o c ame8840ceevl aleww 2.8v tsot-25 - 40 o c to +85 o c ame8840ceevz aleww 2.8v sot-25 - 40 o c to +85 o c ame8840ceevy aleww 2.8v tsot-25 - 40 o c to +85 o c ame 9 ame8801 / 8812 / 8840 300ma cmos ldo rev.s.02 n ordering information (contd.) part number marking* output voltage package operating ambient temperature range ame8840deev alfww 2.5v sot-25 - 40 o c to +85 o c ame8840deevl alfww 2.5v tsot-25 - 40 o c to +85 o c ame8840deevz alfww 2.5v sot-25 - 40 o c to +85 o c ame8840deevy alfww 2.5v tsot-25 - 40 o c to +85 o c ame8840eeev algww 3.8v sot-25 - 40 o c to +85 o c ame8840eeevl algww 3.8v tsot-25 - 40 o c to +85 o c ame8840eeevz algww 3.8v sot-25 - 40 o c to +85 o c ame8840eeevy algww 3.8v tsot-25 - 40 o c to +85 o c ame8840feev alhww 3.6v sot-25 - 40 o c to +85 o c ame8840feevl alhww 3.6v tsot-25 - 40 o c to +85 o c ame8840feevz alhww 3.6v sot-25 - 40 o c to +85 o c ame8840feevy alhww 3.6v tsot-25 - 40 o c to +85 o c ame8840geev aliww 3.5v sot-25 - 40 o c to +85 o c ame8840geev l aliww 3.5v tsot-25 - 40 o c to +85 o c ame8840geev z aliww 3.5v sot-25 - 40 o c to +85 o c ame8840geev y aliww 3.5v tsot-25 - 40 o c to +85 o c ame8840heev aljww 2.7v sot-25 - 40 o c to +85 o c ame8840heevl aljww 2.7v tsot-25 - 40 o c to +85 o c ame8840heevz aljww 2.7v sot-25 - 40 o c to +85 o c ame8840heevy aljww 2.7v tsot-25 - 40 o c to +85 o c ame8840ieev alkww 3.4v sot-25 - 40 o c to +85 o c ame8840ieevl alkww 3.4v tsot-25 - 40 o c to +85 o c ame8840ieevz alkww 3.4v sot-25 - 40 o c to +85 o c ame8840ieevy alkww 3.4v tsot-25 - 40 o c to +85 o c ame8840jeev allww 2.85v sot-25 - 40 o c to +85 o c ame8840jeevl allww 2.85v tsot-25 - 40 o c to +85 o c ame8840jeevz allww 2.85v sot-25 - 40 o c to +85 o c ame8840jeevy allww 2.85v tsot-25 - 40 o c to +85 o c ame8840keev almww 3.7v sot-25 - 40 o c to +85 o c ame8840keevl almww 3.7v tsot-25 - 40 o c to +85 o c ame8840keevz almww 3.7v sot-25 - 40 o c to +85 o c ame 10 300ma cmos ldo ame8801 / 8812 / 8840 rev.s.02 n ordering information (contd.) part number marking* output voltage package operating ambient temperature range ame8840keevy almww 3.7v tsot-25 - 40 o c to +85 o c ame8840leev alnww 1.5v sot-25 - 40 o c to +85 o c ame8840leevl alnww 1.5v tsot-25 - 40 o c to +85 o c ame8840leevz alnww 1.5v sot-25 - 40 o c to +85 o c ame8840leevy alnww 1.5v tsot-25 - 40 o c to +85 o c ame8840meev aloww 1.8v sot-25 - 40 o c to +85 o c ame8840meevl aloww 1.8v tsot-25 - 40 o c to +85 o c ame8840meevz aloww 1.8v sot-25 - 40 o c to +85 o c ame8840meevy aloww 1.8v tsot-25 - 40 o c to +85 o c ame8840neev alpww 2.9v sot-25 - 40 o c to +85 o c ame8840neevl alpww 2.9v tsot-25 - 40 o c to +85 o c ame8840neevz alpww 2.9v sot-25 - 40 o c to +85 o c ame8840neevy alpww 2.9v tsot-25 - 40 o c to +85 o c ame8840oeev alqww 3.1v sot-25 - 40 o c to +85 o c ame8840oeevl alqww 3.1v tsot-25 - 40 o c to +85 o c ame8840oeevz alqww 3.1v sot-25 - 40 o c to +85 o c ame8840oeevy alqww 3.1v tsot-25 - 40 o c to +85 o c ame8840seev areww 5.0v sot-25 - 40 o c to +85 o c ame8840seevl areww 5.0v tsot-25 - 40 o c to +85 o c ame8840seevz areww 5.0v sot-25 - 40 o c to +85 o c ame8840seevy areww 5.0v tsot-25 - 40 o c to +85 o c ame88011eevz bdpww 1.3v sot-25 - 40 o c to +85 o c ame88011eevy bdpww 1.3v tsot-25 - 40 o c to +85 o c ame8801yeevz bdlww 1.9v sot-25 - 40 o c to +85 o c ame8801yeevy bdlww 1.9v tsot-25 - 40 o c to +85 o c ame8801qeevz apwww 4.75v sot-25 - 40 o c to +85 o c ame8801qeevy apwww 4.75v tsot-25 - 40 o c to +85 o c ame8801weevz bkmww 2.3v sot-25 - 40 o c to +85 o c ame8801weevy bkmww 2.3v tsot-25 - 40 o c to +85 o c ame88016eevz bknww 3.45v sot-25 - 40 o c to +85 o c ame88016eevy bknww 3.45v tsot-25 - 40 o c to +85 o c ame 11 ame8801 / 8812 / 8840 300ma cmos ldo rev.s.02 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. * hbm b:2000v~3999v * measure q jc on center of molding compound if ic has no tab. ** mil-std-202g 210f parameter package die attach symbol maximum unit sot-25 tsot-25 conductive epoxy 81 sot-26 tsot-26 non-conductive epoxy 140 sot-25 tsot-25 conductive epoxy 260 sot-26 tsot-26 non-conductive epoxy 280 sot-25 tsot-25 conductive epoxy 400 sot-26 tsot-26 non-conductive epoxy 400 150 o c 350 o c mw q ja p d o c / w solder iron (10sec)** maximum junction temperature thermal resistance * (junction to case) thermal resistance (junction to ambient) internal power dissipation q jc parameter symbol rating unit ambient temperature range t a - 40 to +85 o c junction temperature range t j - 40 to +125 o c storage temperature range t stg - 65 to +150 o c parameter maximum unit input voltage -0.3 to +8 v en, byp voltage -0.3 to +8 v output voltage -0.3 to v in + 0.3 v output current p d / (v in - v out ) ma esd classification b* ame 12 300ma cmos ldo ame8801 / 8812 / 8840 rev.s.02 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. 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 2.0v ame 13 ame8801 / 8812 / 8840 300ma cmos ldo rev.s.02 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 ma ke s 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 qui- escent 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 re- stored when the voltage exceeds 0.8 volts. ame 14 300ma cmos ldo ame8801 / 8812 / 8840 rev.s.02 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 g r o u n d c u r r e n t ( m a ) input voltage (v) 0 5 10 15 20 25 30 35 40 45 0 1 2 3 4 5 6 7 8 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 ( 2 0 0 m a / d i v ) v o ( 5 m v / d i v ) 0 0 o u t p u t ( 1 v / d i v ) e n a b l e ( 2 v / d i v ) 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 o u t p u t ( 1 v / d i v ) e n a b l e ( 2 v / d i v ) 1200 1000 800 600 400 200 1.3 1.5 2 3 4 output voltage (v) i o =100ma i o =200ma d r o p o u t v o l t a g e ( m v ) 0 i o =300ma 5 1200 1000 800 600 400 200 0 50 100 150 200 250 300 load current (ma) v out =1.3v v out =1.5v v out =1.8v top to bottom v out =2.3v v out =2.5v v out =2.8v v out =3.0v v out =3.3v v out =3.5v d r o p o u t v o l t a g e ( m v ) v out =3.8v v out =4.0v ame 15 ame8801 / 8812 / 8840 300ma cmos ldo rev.s.02 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 p s r r ( d b ) frequency (hz) c l =2.2 m f tantalum c byp =1000pf 100ma 100 m a 1ma 10ma 100ma 100 m a p s r r ( d b ) 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 p f 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 p f c byp = 1 nf c byp = 10 nf r load =100 w r short =0.1 w 0 0 time (2ms/div) v o u t ( 1 v / d i v ) i l o a d ( 4 0 0 m a / d i v ) 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 16 300ma cmos ldo ame8801 / 8812 / 8840 rev.s.02 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 o u t ( 1 v / d i v ) i o u t ( 2 0 0 m a / d i v ) r load =3.3 w time (20ms/div) v o ( 1 m v d i v ) c l =2.2 m f no filter time (2ms/div) v o ( 1 m v / d i v ) v i n ( 1 v / d i v ) v indc =5.0v c l =2.2 m f o u t p u t c u r r e n t ( m a ) input-output voltage differential (v) 10 100 300 0.1 1.0 8.0 sot-23-5 e s r ( 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) e s r ( 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 17 ame8801 / 8812 / 8840 300ma cmos ldo rev.s.02 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) e s r ( 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) l o a d r e g u l a t i o n ( % ) -0.50 -0.45 -0.40 -0.35 -0.30 -0.25 -0.20 -45 -5 25 55 85 temperature ( o c) e n p i n l o b i a s c u r r e n t ( 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) e s r ( w ) 27 28 29 30 31 32 33 34 35 -45 -5 25 55 85 temperature ( o c) q u i e s c e n t c u r r e n t @ 5 v ( u a ) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 -45 -5 25 55 85 temperature ( o c) s h u t d o w n c u r r e n t ( u a ) ame 18 300ma cmos ldo ame8801 / 8812 / 8840 rev.s.02 dropout voltage vs. temp. 150 160 170 180 190 200 210 220 -45 -5 25 55 85 temperature ( o c) d r o p o u t v o l t a g e @ 3 0 0 m a ( m v ) ame 19 ame8801 / 8812 / 8840 300ma cmos ldo rev.s.02 year a a a w w xxx0 a a a w w xxx1 a a a w w xxx2 a a a w w xxx3 a a a w w xxx4 a a a w w xxx5 a a a w w xxx6 a a a w w xxx7 a a a w w xxx8 a a a w w xxx9 marking date code n date code rule n tape and reel dimension package carrier width (w) pitch (p) part per full reel reel size sot-25 8.00.1 mm 4.00.1 mm 3000pcs 1801 mm carrier tape, number of components per reel and reel size sot-25 w p ame ame pin 1 ame 20 300ma cmos ldo ame8801 / 8812 / 8840 rev.s.02 package carrier width (w) pitch (p) part per full reel reel size sot-26 8.00.1 mm 4.00.1 mm 3000pcs 1801 mm n tape and reel dimension carrier tape, number of components per reel and reel size w p ame ame pin 1 package carrier width (w) pitch (p) part per full reel reel size tsot-25 8.00.1 mm 4.00.1 mm 3000pcs 1801 mm tsot-25 pin 1 w p ame ame sot-26 carrier tape, number of components per reel and reel size ame 21 ame8801 / 8812 / 8840 300ma cmos ldo rev.s.02 package carrier width (w) pitch (p) part per full reel reel size tsot-26 8.00.1 mm 4.00.1 mm 3000pcs 1801 mm n tape and reel dimension pin 1 w p ame ame tsot-26 carrier tape, number of components per reel and reel size ame 22 300ma cmos ldo ame8801 / 8812 / 8840 rev.s.02 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 q 1 0 o 10 o 0 o 10 o s 1 0.37bsc 0.0146bsc 0.95bsc 0.0374bsc 1.90 bsc 0.07480 bsc symbols millimeters inches 1.20ref 0.0472ref 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 q 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 top view side view d s 1 e e h front view a 1 b a l c 1 pin 1 side view l c 1 top view s 1 d e e h front view b a a 1 pin 1 ame 23 ame8801 / 8812 / 8840 300ma cmos ldo rev.s.02 tsot-25 n package dimension tsot-26 min max min max a+a 1 0.90 1.25 0.0354 0.0492 b 0.30 0.50 0.0118 0.0197 d 2.70 3.10 0.1063 0.1220 e 1.40 1.80 0.0551 0.0709 e h 2.40 3.00 0.09449 0.11811 l q 1 0 o 10 o 0 o 10 o s 1 1.90 bsc 0.07480 bsc symbols millimeters inches 0.35bsc 0.0138bsc 0.95bsc 0.0374bsc min max min max a+a 1 0.90 1.25 0.0354 0.0492 b 0.30 0.50 0.0118 0.0197 d 2.70 3.10 0.1063 0.1220 e 1.40 1.80 0.0551 0.0709 e h 2.40 3.00 0.09449 0.11811 l q 1 0 o 10 o 0 o 10 o s 1 0.35bsc 0.0138bsc 0.95bsc 0.0374bsc 1.90 bsc 0.07480 bsc symbols millimeters inches top view side view d s 1 e e h front view a 1 b a l c 1 pin 1 side view l c 1 top view s 1 d e e h front view b a a 1 pin 1 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 2008 document: 2006/2095-ds8801/8812/8840-s.02 corporate headquarter ame, inc. 2f, 302 rui-guang road, nei-hu district taipei 114, taiwan, r.o.c. tel: 886 2 2627-8687 fax: 886 2 2659-2989 www.ame.com.tw e-mail: sales@ame.com.tw |
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