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ame, inc. 1 ame8806 / 8809 / 8842 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 noise reduction bypass capacitor l power-saving shutdown mode l space-saving so-8 package l factory pre-set output voltages l low temperature coefficient the ame8806/8809/8842 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 so-8 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 ame8806/8809/8842 is stable with an output ca- pacitance 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 amp gnd out in r1 r2 v ref =1.215v byp overcurrent shutdown thermal shutdown en ame8806 ame8809 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 ame8842 output input c3 2.2 m m m m f c1 1 m m m m f gnd out 5v en pg in
ame, inc. 2 600ma cmos ldo ame8806 / 8809 / 8842 n pin configuration ame8806 1. in 2. gnd 3. gnd 4. en 5. byp 6. gnd 7. gnd 8. out so-8 top view so-8 top view ame8809 1. en 2. in 3. out 4. byp 5. gnd 6. gnd 7. gnd 8. gnd so-8 top view ame8842 1. pg 2. in 3. out 4. en 5. gnd 6. gnd 7. gnd 8. gnd 1 3 24 ame8806 5 6 7 8 1 3 24 ame8809 5 6 7 8 1 3 24 ame8842 5 6 7 8 part number marking output voltage package operating temp. range ame8806aeha 8806 aeha yyww 3.3v so-8 - 40 o c to + 85 o c ame8806beha 8806 beha yyww 3.0v so-8 - 40 o c to + 85 o c ame8806ceha 8806 ceha yyww 2.8v so-8 - 40 o c to + 85 o c ame8806deha 8806 deha yyww 2.5v so-8 - 40 o c to + 85 o c n ordering information
ame, inc. 3 ame8806 / 8809 / 8842 600ma cmos ldo n ordering information ame8809 x x x x x operating temperature range number of pins package type product grade or option special feature ame8806 x x x x x ame8842 x x x x x a: 3.3v e: -40 o c to 85 o c h: so-8 a: 8 z: lead free b: 3.0v 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 special feature product grade or option operating temperature range package type number of pins
ame, inc. 4 600ma cmos ldo ame8806 / 8809 / 8842 part number marking output voltage package operating temp. range ame8806eeha 8806 eeha yyww 3.8v so-8 - 40 o c to + 85 o c ame8806feha 8806 feha yyww 3.6v so-8 - 40 o c to + 85 o c ame8806geha 8806 geha yyww 3.5v so-8 - 40 o c to + 85 o c ame8806heha 8806 heha yyww 2.7v so-8 - 40 o c to + 85 o c ame8806ieha 8806 ieha yyww 3.4v so-8 - 40 o c to + 85 o c ame8806jeha 8806 jeha yyww 2.85v so-8 - 40 o c to + 85 o c ame8806keha 8806 keha yyww 3.7v so-8 - 40 o c to + 85 o c ame8806leha 8806 leha yyww 1.5v so-8 - 40 o c to + 85 o c ame8806meha 8806 meha yyww 1.8v so-8 - 40 o c to + 85 o c ame8806neha 8806 neha yyww 2.9v so-8 - 40 o c to + 85 o c ame8806oeha 8806 oeha yyww 3.1v so-8 - 40 o c to + 85 o c ame8809aeha 8809 aeha yyww 3.3v so-8 - 40 o c to + 85 o c ame8809beha 8809 beha yyww 3.0v so-8 - 40 o c to + 85 o c ame8809ceha 8809 ceha yyww 2.8v so-8 - 40 o c to + 85 o c n ordering information (contd.)
ame, inc. 5 ame8806 / 8809 / 8842 600ma cmos ldo n ordering information (contd.) part number marking output voltage package operating temp. range ame8809deha 8809 deha yyww 2.5v so-8 - 40 o c to + 85 o c ame8809eeha 8809 eeha yyww 3.8v so-8 - 40 o c to + 85 o c ame8809feha 8809 feha yyww 3.6v so-8 - 40 o c to + 85 o c ame8809geha 8809 geha yyww 3.5v so-8 - 40 o c to + 85 o c ame8809heha 8809 heha yyww 2.7v so-8 - 40 o c to + 85 o c ame8809ieha 8809 ieha yyww 3.4v so-8 - 40 o c to + 85 o c ame8809jeha 8809 jeha yyww 2.85v so-8 - 40 o c to + 85 o c AME8809KEHA 8809 keha yyww 3.7v so-8 - 40 o c to + 85 o c ame8809leha 8809 leha yyww 1.5v so-8 - 40 o c to + 85 o c ame8809meha 8809 meha yyww 1.8v so-8 - 40 o c to + 85 o c ame8809neha 8809 neha yyww 2.9v so-8 - 40 o c to + 85 o c ame8809oeha 8809 oeha yyww 3.1v so-8 - 40 o c to + 85 o c ame8842aeha 8842 aeha yyww 3.3v so-8 - 40 o c to + 85 o c ame8842beha 8842 beha yyww 3.0v so-8 - 40 o c to + 85 o c
ame, inc. 6 600ma cmos ldo ame8806 / 8809 / 8842 n ordering information (contd.) part number marking output voltage package operating temp. range ame8842ceha 8842 ceha yyww 2.8v so-8 - 40 o c to + 85 o c ame8842deha 8842 deha yyww 2.5v so-8 - 40 o c to + 85 o c ame8842eeha 8842 eeha yyww 3.8v so-8 - 40 o c to + 85 o c ame8842feha 8842 feha yyww 3.6v so-8 - 40 o c to + 85 o c ame8842geha 8842 geha yyww 3.5v so-8 - 40 o c to + 85 o c ame8842heha 8842 heha yyww 2.7v so-8 - 40 o c to + 85 o c ame8842ieha 8842 ieha yyww 3.4v so-8 - 40 o c to + 85 o c ame8842jeha 8842 jeha yyww 2.85v so-8 - 40 o c to + 85 o c ame8842keha 8842 keha yyww 3.7v so-8 - 40 o c to + 85 o c ame8842leha 8842 leha yyww 1.5v so-8 - 40 o c to + 85 o c ame8842meha 8842 meha yyww 1.8v so-8 - 40 o c to + 85 o c ame8842neha 8842 neha yyww 2.9v so-8 - 40 o c to + 85 o c ame8842oeha 8842 oeha yyww 3.1v so-8 - 40 o c to + 85 o c please consult ame sales office or authorized rep./distributor for other output voltage and package type availability.
ame, inc. 7 ame8806 / 8809 / 8842 600ma cmos ldo maximum unit 123.7 o c / w 810 mw 150 o c 300 o c maximum lead temperature (10 sec) parameter thermal resistance ( q ja ) internal power dissipation (p d ) ( d t = 100 o c) maximum junction temperature parameter maximum unit input voltage 8 v output current p d / (v in - v o )a input, output voltage gnd - 0.3 to v in + 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 n thermal information caution: stress above the listed absolute maximum rating may cause permanent damage to the device
ame, inc. 8 600ma cmos ldo ame8806 / 8809 / 8842 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 75 f=10khz 55 f=100khz 30 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 pg leakage current i lc 1 m a pg voltage rating v pg 7v pg voltage low v ol 0.4 v v pg =7v v o in regulation i sink =0.4ma m vrms v in =2.7v to 7v v in =2.7v to 7v v en =v in , v in =2.7v to 7v f=10hz to 100khz i o =10ma, c byp =0.01 m f db co=2.2 m f30 test condition en i o =1ma to 600ma i o =1ma to 600ma dropout voltage i o =1ma v o >1.2v v o >1.2v v o <0.8v i o =0ma en input bias current v en =0v, v in =2.7v to 7v v in =5v, v o =0v, v en ame, inc. 9 ame8806 / 8809 / 8842 600ma cmos ldo the ame8806/8809/8842 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 600ma. during thermal shutdown, the output voltage remains low. normal operation is re- stored when the junction temperature drops below 120 o c. the ame8806/8809/8842 switches from voltage mode to current mode when the load exceeds the rated output current. this prevents over-stress. the ame8806/8809/ 8842 also incorporates current foldback to reduce power dissipation when the output is short circuited. this fea- ture becomes active when the output drops below 0.8 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 ame8806/8809/8842 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. 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. 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.
ame, inc. 10 600ma cmos ldo ame8806 / 8809 / 8842 ground current vs. input voltage load step (1ma-600ma) drop out voltage vs. output voltage power supply rejection ratio safe operating area power supply rejection ratio 10 100 600 0.1 1.0 8.0 output current (ma) input-output voltage differential (v) 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 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 -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 time ( 20ms/div) i l (200ma/div) vo(10mv/div) i load out put c l =2. 2 m f ci n=2. 2 m f 0 0 200 400 600 800 1000 1200 12 34 5 6 i load =600ma drop out voltage (v) output voltage (v)
ame, inc. 11 ame8806 / 8809 / 8842 600ma cmos ldo short circuit response overtemperature shutdown current limit response noise measurement chip enable transient response line transient response time (20ms/div) vo (1mv div) c l =2.2 m f no filter v out (1v/div) i out (200ma/div) time (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) v out (10mv/div) v in (1v/div) c load =2.2 m f i load =1ma v outdc =3.3v v indc =4.5v time (200ms/div) 0 0 time ( 1ms/div) c l =2 m f r l =10 w output (1v/div) enable (2v/div)
ame, inc. 12 600ma cmos ldo ame8806 / 8809 / 8842 n package dimension so-8 min max min max a 1.35 1.75 0.05315 0.0689 a 1 0.10 0.25 0.00394 0.00984 a2 b 0.33 0.51 0.01299 0.02008 c 0.19 0.25 0.00748 0.00984 d 4.80 5.00 0.18898 0.19685 e 3.80 4.00 0.14961 0.15748 e l 0.40 1.27 0.01575 0.05 y - 0.10 - 0.004 0 o 8 o 0 o 8 o 1.473 ref 0.058 ref 1.27 bsc 0.050 bsc symbols millimeters inches 7 o (4x) c top view side view front view d e l a a2 a1 e b c
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-ds8806/8809/8842-g 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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