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| ! " # ! ! ! " " " $ % &'())*+ ,% - ? .* ,/)* $ 0 1 /) 2 $ 01 & )2 $ $ /))3 ! $ 4 !!5 " * * ()) * 4 1 ,%(62 % & ' 1 ,/))62 / &7 ' 4 8 /) 7 ' * 9 * :) * ; 8 '! ; %&) < 4 '! % & ' ; +!'! ; 7 ( < !5 8 = + !!5 7 ( *5 8 8 1 ,%(62> % ( ? 8 1 ,%(62 7( ? "!%(6 ) :& ?56 + ((@/() 6 a /5b ( :)) 6 + + < % -b 6 ? + + < ' " > () 6 ? + + < ' " //) 6 ? ! " ! ! ! " " " ! " ! ! ! " " " january 200 9 qfet ? ? rohs compliant ?2009 fairchild semiconductor internati rev. a2, january 2009 !" # $%# &##' ( # )*+#,- *./ 0/ ?, 1 - .2 00.2 / 3/ 1 " !" 00 4%(%( 5 6 % 7 # c* c = * * ,)*4 ,%() ' ()) * ? c* 5 ? c = * 4 ,%() '+ %(6 ) :b *56 4 d9 * * ,())** ,)* / ' * ,7))* ,/%(6 /) ' 4 9 c0 = * ,:)** ,)* /)) ' 4 9 c0 = +! * ,:)** ,)* /)) ' * 9 * * ,* 4 ,%() ' : ) ( ) * + + * ,/)*4 ,/ :' % ) % - ? * ,()*4 ,/ :' % & 4 * ,%(** ,)* ,/ ) e# :() 7&) (( -) +! & b * ,%()*4 ,: 7' + ,%( ? /% :) + 7( /)) %) () :) -) f 9 * ,7))*4 ,: 7' * ,/)* /) /: f 9 % ( f 9 7 - 4 a % & ' 4 a 8 /) 7 ' * * * ,)*4 ,% &' / 7 * +!+ ! * ,)*4 ,: 7' 4 5,/))'5 %/) f +!+ ! / /( ?2009 fairchild semiconductor internati rev. a2, january 2009 ? !" !"# $ %&' !" ! ! " #$ % # & ' ?2009 fairchild semiconductor internati rev. a2, january 2009 ( # )* % + , - ./ + 0 !1- ) 2 3( # ! ! "#! ! ! $ ! " # % $ # % & ! ( ) *$$" & + ', ) *$$ #$ - . ! #$ / #$ '' # #$ " ?200 9 fairchild semiconductor internati rev. a 2 , january 2009 # 01 &$ "! # 01 &$ 2 $ 3 "! # 01 &$ 81 #. 81 41 00 9 0: 00 9 / 81 #. 81 41 00 9 0: 00 9 / 81 41 05 ;05 44 41 ) 8 81 81 41 05 ;05 44 41 ) 8 81 .1 .1 411 44 411 44 41 411 44 .1 41 4 8 4 .1 .1 .1 .1 411 44 411 44 41 411 44 .1 41 4 8 4 4 ?200 9 fairchild semiconductor internati rev. a 2 , january 2009 4 . 5 # 01 &$ 41 ! " 8 #' (# 81 44 14 44 14 < !" ########################## 41 ! " 8 #' (# 81 44 14 44 14 < !" ########################## !" ########################## ?200 9 fairchild semiconductor internati rev. a 2 , january 2009 ?200 9 fairchild semiconductor internati rev. a 2 , january 2009 to-252 (dpak) (fs pkg code 36) 1:1 scale 1:1 on letter size paper dimensions shown below are in: millimeters part weight per unit (gram): 0.33 dimensions in millimeters i - pak ?200 9 fairchild semiconductor internati rev. a 2 , january 2009 fqd4n50 / fqu4n50 rev. i37 trademarks the following includes registered and unregistered trademarks and service marks, owned by fairchild semiconductor and/or its gl obal subsidiaries, and is not intended to be an exhaustive list of all such trademarks. * ezswitch? and flashwriter ? are trademarks of system general corporation, used under license by fairchild semiconductor. disclaimer fairchild semiconductor reserves the right to make changes with out further notice to any products herein to improve reliability, function, or design. fairch ild does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey an y license under its patent rights, nor the rights of others. these specifications do not expand the terms of fairchild?s worldwide terms and conditions, specifically the warranty therein, which covers these products. life support policy fairchild?s products are not authorized fo r use as critical components in life support devices or systems without the express written approval of fa irchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. a critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. product status definitions definition of terms build it now? coreplus? corepower? crossvolt ? ctl? current transfer logic? ecospark ? efficentmax? ezswitch? * ? fairchild ? fairchild semiconductor ? fact quiet series? fact ? fast ? fastvcore? flashwriter ? * fps? f-pfs? frfet ? global power resource sm green fps? green fps? e-series? gto? intellimax? isoplanar? megabuck? microcoupler? microfet? micropak? millerdrive? motionmax? motion-spm? optologic ? optoplanar ? ? pdp spm? power-spm? powertrench ? powerxs? programmable active droop? qfet ? qs? quiet series? rapidconfigure? ? saving our world, 1mw /w /kw at a time? smartmax? smart start? spm ? stealth? superfet? supersot?-3 supersot?-6 supersot?-8 supremos? syncfet? ? the power franchise ? tinyboost? tinybuck? tinylogic ? tinyopto? tinypower? tinypwm? tinywire? serdes? uhc ? ultra frfet? unifet? vcx? visualmax? xs? tm ? tm tm datasheet identification product status definition advance information formative / in design datasheet contains the design specifications for product development. specifications may change in any manner without notice. preliminary first production datasheet contains preliminary data; supplementary data will be published at a later date. fairchild semiconductor reserves the right to make changes at any time without notice to improve design. no identification needed full production datasheet contains final specifications. fair child semiconductor reserves the right to make changes at any time withou t notice to improve the design. obsolete not in production datasheet contains specifications on a product th at is discontinued by fairchild semiconductor. the datasheet is for reference information only. anti-counterfeiting policy fairchild semiconductor corporation?s anti-counterfeiting policy. farichild?s anti-counterfeiting policy is also stated on our external website, www.fairchildsemi.com, under sales support . counterfeiting of semiconductor parts is a growing problem in th e industry. all manufactures of semiconductor products are expe riencing counterfeiting of their parts. customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed application, and increased cost of production and manufacturing del ays. fairchild is taking strong measures to protect ourselve s and our customers from the proliferation of counterfeit parts. farichild strongly encourages customers to purchase farichild parts either directly from fa irchild or from authorized fairchild distributors who are listed by country on our web page cited above. products customers buy either from fairchild directly or fr om authorized fairchild distributors are genuine parts, have full traceability, meet fairchild?s quality standards for handing and storage and provide access to farichild?s full range of up-to-date technical and product information. fairchild and our authorized distributors will stand behind all warranties and wi ll appropriately address and warranty issues that may arise. fairchild will not provide any warranty coverage or other assistance for parts bought from unau thorized sources. farichild is committed to combat this global problem and encourage our customer s to do their part in stopping this practice by buying direct or from authorized distributors. rev. a2. january 2009 ?2009 fairchild semiconductor corporation |
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