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[???3??w ? tx?3tw????]b;<^m{ x x x n b y j n j d d p n ????3??tgl^?h o0xz?t???3tw?s???3????`h?wpb{?t?? \a? t|??t mmow y x ?mtv?b{ y?s o0w rtx?3tw?w???3???]? <^m{ ________________________________________________________________ maxim integrated products 1 ?a ___________________________________ . " 9 . " 9 . " 9 x ? . " 9? -?w??psa??? % $ % $ ???pb{ ?8 tv+? o b?\qt?lo? ?zw3???? ??|??u ?aqs?z??pz 2??t| ?a??q`?b{~ ? ? ?vxz?t "pb{ ?^ ?? ?y c?x 7? 7 0 6 5 pb{ 7 0 6 5 x 7? 7 ?p ? pv?b{????? ?yw- a ?xz 7pb{ . " 9 . " 9 . " 9 xz 7 x 7pw???t|e? ? r z?ud qsl om?b{?h? ? ? x??;b?yz z? ?y? ?t e tb?\qupv?b{ \??w ??xb?oz /??? . 0 4 ' & 5 w?????? o `om?b{ . " 9 px ?v???? ?x "z . " 9 x " p?? ?w ???????;pv?b{ . " 9 x e? . " 9 ?-?p ?^?z ?v????w e tt|??? ????a??wn ?ud pb{ ??-?3?? _______________________ ??? 3 ? ??;+ ???????e?? 1 % " 3 '?? ? ?w??????;+ ? ? ___________________________________ ??p n " z? ~ ? ? ?v " ?8 tv+ o ? ???|?? ?a ?? m?3????? 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" 9 & 7 , * 5 max1674/MAX1675/max1676 ??pz ? ? ? ?vz ?z a??? % $ % $??? gnd lbo shdn ref 1 2 8 7 out lx lbi fb max1674 MAX1675 max top view 3 4 6 5 1 2 3 4 5 10 9 8 7 6 out lx gnd batt clsel lbo lbi fb max1676 max shdn ref max1674 MAX1675 input 0.7v to v out shdn lx lbo out lbi 0.1 f low-battery detect out off on ref gnd fb output 3.3v, 5v, or adj (2v to 5.5v) up to 300ma low-battery detect in part max1674 eua -40? to +85? temp. range pin-package 8 ?ax j ___________________________________ MAX1675 eua -40? to +85? 8 ?ax max1676 eub -40? to +85? 10 ?ax evaluation kit manual follows data sheet a j ?^s? ___________________________ e? ? _______________________________ 19-1360; rev 3; 3/00 max1674/MAX1675/max1676 ??pz ? ? ? ?vz ?z a??? % $ % $??? absolute maximum ratings electrical characteristics 7 # " 5 5 7 ' # 0 6 5 7 0 6 5 7 3 - ? t a = 0? to +85? v o m f t t p u i f s x j t f o p u f e 5 z q j d b m w b m v f t b s f b u 5 " $ stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. supply voltage (out to gnd) ..............................-0.3v to +6.0v switch voltage (lx to gnd) .....................-0.3v to (v out + 0.3v) battery voltage (batt to gnd).............................-0.3v to +6.0v shdn , lbo to gnd ..............................................-0.3v to +6.0v lbi, ref, fb, clsel to gnd ...................-0.3v to (v out + 0.3v) switch current (lx) ...............................................-1.5a to +1.5a output current (out) ...........................................-1.5a to +1.5a continuous power dissipation (t a = +70?) 8-pin ?ax (derate 4.1mw/? above +70?) .............330mw 10-pin ?ax (derate 5.6mw/? above +70?) ...........444mw operating temperature range ...........................-40? to +85? junction temperature ......................................................+150? storage temperature range .............................-65? to +165? lead temperature (soldering, 10s) .................................+300? t a = +25?, r l = 3k ? (note 1) v lx = 0, 5.5v; v out = 5.5v t a = +25? MAX1675, max1676 (clsel = gnd) max1674, max1676 (clsel = out) i lx = 100ma fb = out (v out = 3.3v) v out = 2v to 5.5v i ref = 0 to 100? 90 130 MAX1675, max1676 (clsel = gnd) fb = out fb = gnd i ref =0 conditions ? 0.05 1 i leak lx leakage current a 0.4 0.5 0.65 i lim 0.80 1 1.20 lx switch current limit (nfet) ? 0.3 0.6 r ds(on) internal nfet, pfet on-resistance v 1.274 1.30 1.326 fb, lbi input threshold mv/v 0.08 2.5 v ref_line reference voltage line regulation mv 315 v ref_load reference voltage load regulation mv/? 0.024 tempco reference voltage tempco v 1.274 1.30 1.326 v ref reference voltage v 0.9 1.1 start-up voltage v 1.1 5.5 v in v 0.7 minimum input voltage operating voltage 150 220 fb = gnd (v out = 5v) MAX1675, max1676 (clsel = gnd) 180 285 i out max1674, max1676 (clsel = out) ma 300 420 steady-state output current (note 2) mv/? -2 start-up voltage tempco v 3.17 3.30 3.43 v out output voltage 4.80 5 5.20 max1674, max1676 (clsel = out) v 25.5 output voltage range units min typ max symbol parameter 2 _______________________________________________________________________________________ max1674/MAX1675/max1676 ??pz ? ? ? ?vz ?z a??? % $ % $??? electrical characteristics 7 # " 5 5 7 ' # 0 6 5 3 - t a = -40? to +85? v o m f t t p u i f s x j t f o p u f e / p u f v out = 2v, i load = 1ma v out = 3.3v, i load = 200ma shdn = gnd conditions % 85 efficiency 90 ? 0.1 1 shutdown current into out units min typ max symbol parameter max1676, v batt = 2v v lbo = 5.5v, v lbi = 5.5v v lbi = 0, i sink = 1ma v shdn = 0 or v out v fb = 1v, v out = 3.3v max1676, clsel = out v lbi = 1.4v v fb = 1.4v v fb = 1v, v out = 3.3v 0.8v out v ih 0.2v out v il clsel input voltage v 0.8v out v ih 0.2v out v il shdn input voltage ? 88 150 damping switch resistance ? 0.07 1 i lbo lbo off leakage current v 0.2 0.4 lbo low output voltage na 0.07 50 i shdn shdn input current ? 1.4 3 i clsel clsel input current na 150 i lbi lbi input current na 0.03 50 i fb fb input current ? 0.8 1 1.2 t off lx switch off-time ? 347 t on lx switch on-time v electrical characteristics (continued) 7 # " 5 5 7 ' # 0 6 5 7 0 6 5 7 3 - ? t a = 0? to +85? v o m f t t p u i f s x j t f o p u f e 5 z q j d b m w b m v f t b s f b u 5 " $ fb = gnd fb = out v fb = 1v, v out = 3.3v v fb = 1v, v out = 3.3v shdn = gnd v fb = 1.4v, v out = 3.3v i ref = 0 MAX1675, max1676 (clsel = gnd) max1674, max1676 (clsel = out) conditions 0.36 0.69 a 0.75 1.25 i lim lx switch current limit (nfet) v 2.20 5.5 output voltage range v 4.75 5.25 3.13 3.47 v out output voltage ? 0.75 1.25 t off lx switch off-time ? 2.7 7.0 t on lx switch on-time ? 1 shutdown current into out ? 40 operating current into out (note 3) v 1.2675 1.3325 v ref reference voltage v 1.2675 1.3325 fb, lbi thresholds ? 0.6 r ds(on) internal nfet, pfet on-resistance units min max symbol parameter v fb = 1.4v, v out = 3.3v ? 16 35 operating current into out (note 3) _______________________________________________________________________________________ 3 max1674/MAX1675/max1676 ??pz ? ? ? ?vz ?z a??? % $ % $??? 4 _______________________________________________________________________________________ a j ?^ ? q ______________________________________________________________________ (l = 22?, c in = 47?, c out = 47? ?? 0.1?, c ref = 0.1?, t a = +25?, unless otherwise noted.) v lbo = 5.5v, v lbi = 5.5v v shdn = 0 or v out max1676, clsel = out conditions ? 1 i lbo lbo off leakage current na 75 i shdn shdn input current ? 3 i clsel clsel input current units min max symbol parameter electrical characteristics (continued) 7 # " 5 5 7 ' # 0 6 5 3 - t a = -40? to +85? v o m f t t p u i f s x j t f o p u f e / p u f note 1: start-up voltage operation is guaranteed with the addition of a schottky mbr0520 external diode between the input and output. note 2: steady-state output current indicates that the device maintains output voltage regulation under load. see figures 5 and 6. note 3: device is bootstrapped (power to the ic comes from out). this correlates directly with the actual battery supply. note 4: specifications to -40? are guaranteed by design, not production tested. 100 0 0.01 0.1 1 10 100 1000 efficiency vs. load current 20 30 10 max1674 toc01 load current (ma) efficiency (%) 40 50 60 70 90 80 v in = 1.2v v out = 5v i limit = 500ma v in = 2.4v v in = 3.6v 100 0 0.01 0.1 1 10 100 1000 efficiency vs. load current 20 30 10 max1674 toc02 load current (ma) efficiency (%) 40 50 60 70 90 80 v in = 1.2v v out = 5v i limit = 1a v in = 2.4v v in = 3.6v 100 0 0.01 0.1 1 10 100 1000 efficiency vs. load current 20 30 10 max1674 toc03 load current (ma) efficiency (%) 40 50 60 70 90 80 v in = 1.2v v out = 3.3v i limit = 500ma v in = 2.4v 100 0 0.01 0.1 1 10 100 1000 efficiency vs. load current 20 30 10 max1674 toc04 load current (ma) efficiency (%) 40 50 60 70 90 80 v in = 1.2v v out = 3.3v i limit = 1a v in = 2.4v 1.290 1.292 1.296 1.294 1.298 1.300 -40 0 -20 20406080100 reference output voltage vs. temperature max1674 toc05 temperature (?) reference output voltage (v) i ref = 0 i ref = 100 a max1674/MAX1675/max1676 ??pz ? ? ? ?vz ?z a??? % $ % $??? _______________________________________________________________________________________ 5 0 40 20 100 80 60 140 120 160 0 1.5 2.0 0.5 1.0 2.5 3.0 3.5 4.0 4.5 no-load battery current vs. input battery voltage max1674toc07 input battery voltage (v) input battery current ( a) i limit = 1a, 5.0v i limit = 0.5a, 5.0v i limit = 0.5a, 3.3v i limit = 1a, 3.3v 1.8 0 0.01 1 10 0.1 100 start-up voltage vs. load current 0.2 0.4 max1674toc08 load current (ma) start-up voltage (v) 0.8 0.6 1.0 1.2 1.4 1.6 without diode with 1n5817 -1.0 -0.6 -0.8 -0.2 -0.4 0.2 0 0.4 0.8 0.6 1.0 1 2.0 2.5 3.0 1.5 3.5 4.0 4.5 5.0 5.5 shutdown current vs. supply voltage max167toc09 supply voltage (v) shutdown current ( a) 0 0.4 0.2 0.8 0.6 1.2 1.0 1.4 0 1.0 1.5 0.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 shutdown threshold vs. supply voltage max1674toc10 supply voltage (v) shutdown threshold (v) 0 200 100 500 300 400 800 700 600 900 1.0 2.0 1.5 2.5 3.0 3.5 4.0 4.5 maximum output current vs. input voltage (v out = 5v) max1674toc11 input voltage (v) maximum output current (ma) 1a current limit 0.5a current limit 0 200 100 400 300 600 500 800 700 1.0 1.4 1.6 1.2 1.8 2.0 2.2 2.4 2.6 2.8 3.0 maximum output current vs. input voltage (v out = 3.3v) max1674toc12 input voltage (v) maximum output current (ma) 0.5a current limit 1a current limit a j ?^ ? q v _______________________________________________________________ (l = 22?, c in = 47?, c out = 47? ?? 0.1?, c ref = 0.1?, t a = +25?, unless otherwise noted.) 1 s/div heavy-load switching waveforms max1674 toc13 v lx 5v/div i lx 0.5a/div v out ac coupled 100mv/div v in = 2.4v v out = 5.0v 0 0.4 0.2 0.8 0.6 1.0 1.2 2.0 3.0 3.5 2.5 4.0 4.5 5.0 lx current limit vs. output voltage max1674toc14 output voltage (v) i lim (a) max1674, max1676 (clsel = out) MAX1675, max1676 (clsel = gnd) 0 0.15 0.10 0.05 0.25 0.20 0.35 0.30 0.45 0.40 -60 -20 -40 020406080100 switch resistance vs. temperature max1674toc13.5 temperature ( c) resistance ( ? ) p-channel n-channel 10 s/div line-transient response max1674 toc15 v in 2v to 3v 1v/div v out ac coupled 100mv/div i load 100ma 5 s/div load-transient response max1674 toc16 i out 200ma/div v out 50mv/div ac coupled v in = 2.4v v out = 3.3v 500 s/div exiting shutdown max1674 toc17 v shdn 2v/div v out 2v/div max1674/MAX1675/max1676 ??pz ? ? ? ?vz ?z a??? % $ % $??? 6 _______________________________________________________________________________________ a j ?^ ? q v ____________________________________________________________ (l = 22?, c in = 47?, c out = 47? ?? 0.1?, c ref = 0.1?, t a = +25?, unless otherwise noted.) % v b m . p e fxz . b y j n * o u f h s b u f e 1 s p e v d u tw ? apb{ z? ? __________________________________________________________________________ e? ? ;y max1674 MAX1675 max1676 1 1 fb % v b m . p e f 5 . ?????? ??{ 7 z?x ( / %t ? { 7 z?x 0 6 5t ? { 7? 7w z? ?y ? txz????????;{ 2 2 lbi ??a???? ??{ o ? ? t??z 7p???{ 3 3 lbo |?????w??a???? z?{ l ?p lbo ? 0 6 5t ? { 7 - # * 7 z z?x?{3?????z lbo x????e???{ 4 clsel ?v????w ?? ? r{ $ - 4 & - 0 6 5pz ?v????? 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" 9 pb{ hrw???e?? % $ % $??? ??? ?u ?? ?yp!= qx?s?z g?? px ??? ?yu????? ?vw???? ?s?| ???????w sa3??? ? & 4 3 w u? q?\qxk??d?{ ?8 tv ?8 tv+w o t?lo? ?3??????|??u ?aqslhh?z?t|??????_n b?\qupv?b{|???~???w8pxz 1??? . 0 4 ' & 5u|?qs?z . 0 4 ' & 5w??? ??|???3???`?b{ ?8 tv+? o b?\qt??z? ? ? ?? ?cdct ?p?2 ^d?`h{!??px ? a j ?^ ? q t ?b?ot7 g pb{hi`z o? ???z / j $ ex / j . ) pw ? ?y ??xzi ?;t / srw? ?3??????|????;`oxi^m{ max1674/MAX1675/max1676 ??pz ? ? ? ?vz ?z a??? % $ % $??? _______________________________________________________________________________________ 7 max1674 MAX1675 max1676 one-shot trig q f/f r s q one-shot trig q current-limit amplifier error amplifier low-battery comparator reference ref fb v in 47 f 47 f r1 200 ? r5 r6 damping switch 22 h batt (max1676) gnd lx out 0.1 f 0.1 f v out r4 lbi lbo r2 100k r3 v in v out clsel (max1676) shdn minimum off-time one-shot zero crossing amplifier en maximum on-time one-shot p n $ ????3??????? max1674/MAX1675/max1676 ?y???? 3 & ' ?yxz? ? 7pb{ 3 & 'x? ?s?tz 7 g "?p1?d pb{\w????xz ?h ?ya?3???-?`?b ? a j ?^ ? q ?? `oxi^m { y ?^?- ab?txz 'w??????;`oxi^m{ 3????? vsdn u? 7 0 6 5 u 7 shdn ts?qz?? x3?????`?b{ ?^pxz shdn ??? 7 0 6 5 u 7 shdn t???zx shdn ? 0 6 5t ? `?b{3????? x 1??? . 0 4 ' & 5w ?????|??t?loz z?t?a?t? ?vu v??b{ 7 0 6 5 xs?f 7 * / 7qs?z - 9x??? e????-j?b{ 0 6 5w0?s?| ?yt??z 7 0 6 5 w ?y?<u>???b{3?????x 0 6 5w ?yqxtz7 g 7?p???pv?b{ ?v mv ? re? . 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" 9 . " 9 . " 9 xz )t? )w c?w?????p? ?^`?b{ ??????? ?^xb?y g $ go? ?^x slo1lw ? ?? ????h?z ? . $s??? hq?\qupv?b{`t`?????we?? ?vu gvxs?z z? ?y??? * 1 & " , z??? ?????w & 4 3 ??xs??b{?????? ?? gvxb?q g z? ?v?vd?buz1lw ? ?? ??oqb?q g $t??u gvxslo `?m?b{?????w^ ?v xze??w ????? ?v????w ??? gvxsz?y s?cz . " 9 px "z . " 9 px n "z f`o . " 9 px "x " qs??b{`t` su? ` $tx?????x^ ?w ? qo ??d pb{hi\w ?txz?pu ?n ? `?b{ tz * ? ? ???`?b{ ?????w % $ ?x?pt gvx1`?b{ t k??????w?7 z?? `oxi^m{7 g z? ?vxp? z`?b{ \\pz * 0 6 5 . " 9 7 g z? ?v 7 * / ?? ?y - ????? ? ) ?p u z q u 0 ' ' - 9???w|??? t * - * . "?hx " i v v it vv xl out max in out lim off out in () = ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 2 ??pz ? ? ? ?vz ?z a??? % $ % $??? 10 ______________________________________________________________________________________ max1674 MAX1675 max1676 batt (max1676) v in lbi ref gnd r3 r1 200 ? r4 22 h 47 f 0.1 f lx lbo v out fb r2 100k shdn out clsel (max1676) low- battery output 0.1 f 47 f $ 7 * / ? 7wz??a???-?? ? ? max1674 MAX1675 max1676 lbi gnd v trip (v h , v l ) r3 r4 r7 v h is the upper trip level v l is the lower trip level where r2 100k lbo out v out 0.1 f 47 f v = 1.3v v = 1.3v h l () ++ ? ? ? ? ? ? () +? ? + ? ? ? ? ? ? ( .) (. ) ( ) 1 3 7 3 4 1 3 4 13 3 13 2 7 r r r r r r vvr vr r out $ ??a???-??; ? ??a?3w ?c ???w ? r 7t? 7?wa???w ?z z?????~ ???t 'z 7w ?? ???? 4 . 5 ? ?;b?qz z????x n 7qs??b{ ?0?w ??? ???m & 4 3p7 ? ' x ?yu0m ?z ?h z????u gvxo?e jwsm??-? 3??p?;pv?b{ '? 'w c?w?w? * ?`?b{?;s?|????;??? pxz ? sa ? & 4 3 u?pq z????t1 `?b{ z? ?y???w ?xze??????? ?vq z???? & 4 3w uqs??b{ q ? k[? ?x ? & 4 3w?????;b?tz?? ?????? x? ??t ? `oxi^m{ ? & 4 3? 4 . 5???????xz 4 q s b h v f % 3??? z " 7 9 5 1 43??? t? ? pv?b{ ?? ?????~8 0 4 $ 0 / ; r ? . w ???????? & 4 3u ? t ?m?tz ?9pw ?^?e jk??d?{\\px tz * ? ? ?wy????g`?b{ max1674/MAX1675/max1676 ______________________________________________________________________________________ 11 a m ????? ??? tv+ |3?? surface mount sumida cd43 series sumida cd54 series coilcraft dt1608c coilcraft do1608c coiltronics uni-pac murata lqh4 series sprague 593d series sprague 595d series avx tps series ceramic motorola mbr0530 nihon ec 15qs02l miniature through-hole sumida rch654-220 sanyo os-con series * ? ? ? ?? ? ?z?????w?7 a y?w ? j? ? 7 g ? i peak (a) ?^ n n coilcraft dt1608c-103 10 0.095 0.7 2.92 coilcraft do1608c-153 15 0.200 0.9 2.92 coilcraft do1608c-223 22 0.320 0.7 2.92 coiltronics up1b-100 10 0.111 1.9 5.0 ? ?y? a y? ? j? ' " 9 avx usa (803) 946-0690 usa (803) 626-3123 coilcraft usa (847) 639-6400 usa (847) 639-1469 coiltronics usa (561) 241-7876 usa (561) 241-9339 murata usa (814) 237-1431 (800) 831-9172 usa (814) 238-0490 nihon usa (805) 867-2555 japan 81-3-3494-7411 usa (805) 867-2556 japan 81-3-3494-7414 motorola usa (303) 675-2140 (800) 521-6274 usa (303) 675-2150 sanyo usa (619) 661-6835 japan 81-7-2070-6306 usa (619) 661-1055 japan 81-7-2070-1174 sumida usa (647) 956-0666 japan 81-3-3607-5111 usa (647) 956-0702 japan 81-3-3607-5144 taiyo yuden usa (408) 573-4150 usa (408) 573-4159 sprague usa (603) 224-1961 usa (603) 224-1430 coiltronics up1b-150 15 0.175 1.5 5.0 coiltronics up1b-220 22 0.254 1.2 5.0 murata lqh4n100 10 0.560 0.4 2.6 murata lqh4n220 22 0.560 0.4 2.6 sumida cd43-8r2 8.2 0.132 1.26 3.2 sumida cd43-100 10 0.182 1.15 3.2 sumida cd54-100 10 0.100 1.44 4.5 sumida cd54-180 18 0.150 1.23 4.5 sumida cd54-220 22 0.180 1.11 4.5 ??pz ? ? ? ?vz ?z a??? % $ % $??? max1674/MAX1675/max1676 ??pz ? ? ? ?vz ?z a??? % $ % $??? 12 ______________________________________________________________________________________ transistor count: 751 ?? ?c _____________________________ ?-? _________________________________________________________________________ ? ? tv+ |3?? - 9t| 0 6 5t3??????|?? . # 3 sr ? ? b?qz????? ?y $ ? ?xb? \qupvz ?? ?y 7?<pw ?^t * ?`?b{ hi`??|??? ?c`o??pw g ?2 xl?? d?{ 1 $???w???t|???? ????w! ?????7 ?vt-mh?zs?w ???? ? ot?loxi^m{ * $w ( / %e?q ? z????????w???????xz n n? m?sm?ot ?`oxi^m{?h ' #q - 9e??w ?ow ? xzpv?iz yx`oxi^m{ ?t? ? t?????? ???;b? ?zpv?iz ' #w xt ?`oxi^m{ z? ?yt|?p?7 g tz?h z???? ?y?7 ?tb?txz ???? ??? ?zz * $w ( / %? ? ? `oxi^m{ max1674 MAX1675 max1676 batt (max1676) v in lbi ref gnd r3 r1 200 ? r4 r2 100k 22 h 47 f 0.1 f lx lbo fb shdn out low-battery output 0.1 f mbr0520 47 f clsel (max1676) $ ? ?? ?ypw ?^z3??????|??? ?c 10lumax.eps |
Price & Availability of MAX1675
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