? 2004 fairchild semiconductor corporation www.fairchildsemi.com fan5029 rev. 1.1.3 fan5029 ? 8-bit pro g rammable 2- to 5-phase s y nchronous buck controller january 2007 fan5029 8-bit programmable 2- to 5-ph ase synchronous buck controller features ? selectable 2-, 3-, 4-, or 5-phase operation at up to 1mhz per phase ? 7.7mv worst-case differential sensing error ? active current balanci ng between the output phases ? power good and crowbar blanking supports on-the- fly vid code changes ? selectable vr10 extended (7-bit) and vr11 (8-bit) vid tables ? programmable short-circuit protection and latch-off delay ? programmable soft start ramp applications ? desktop pc/server processor power supplies for existing and next generation intel processors ? vrm modules products part numbers ? FAN5029MPX is not for new designs. ? the FAN5029MPX_naac238 replaces the FAN5029MPX and is compatible with all vr10 and vr11 processors. description the fan5029 is a multi-phase buck switching regulator controller optimized to convert a 12v input supply to the processor core voltage required by high- performance intel? processors. it has an internal 8-bit dac that converts a digita l voltage identification (vid) code that is sent from the processor to set the output voltage between 0.5v and 1.6v. it outputs a pwm to external mosfet drivers that, in turn, drive the switching power mosfets. the switching frequency of the design is programmable by a single resistor value and the number of phases can be programmed to support 2-, 3-, 4-, or 5-phase applications. the fan5029 also includes programmable no-load offset and droop functions to adjust the output voltage as a function of the load current, as required by the intel specifications. the fan5029 also provides an accurate and reliable short-circuit protection function with an adjustable over-current set point. the fan5029 is specified over the extended commercial temperature range of 0c to +85c and is available in a 40-lead mlp package. ordering information part number temperature range package type lead free packing method quantity per reel FAN5029MPX not for new designs FAN5029MPX_naac238 0c to 85c mlp-40 yes tape and reel 3,000 for more information, please contact ron berthiaume at ronald.berthiaume@fairchildsemi.com .
? 2004 fairchild semiconductor corporation www.fairchildsemi.com fan5029 rev. 1.1.3 2 fan5029 ? 8-bit pro g rammable 2- to 5-phase s y nchronous buck controller block diagram figure 1: block diagram
? 2004 fairchild semiconductor corporation www.fairchildsemi.com fan5029 rev. 1.1.3 3 fan5029 ? 8-bit pro g rammable 2- to 5-phase s y nchronous buck controller trademarks the following are registered and unregistered trademarks fairchild semiconductor owns or is authorized to use and is not intend ed to be an exhaustive list of all such trademarks. acex ? globaloptoisolator ? ocxpro ? serdes ? tinyboost ? activearray ? gto ? optologic ? silent switcher ? tinybuck ? bottomless ? hisec ? optoplanar ? smart start ? tinylogic ? build it now ? i 2 c ? pacman ? spm ? tinyopto ? coolfet ? i-lo ? pop ? stealth ? tinypower ? crossvolt ? implieddisconnect ? power247 ? superfet ? tinypwm ? dome ? intellimax ? poweredge ? supersot ? -3 trutranslation ? ecospark ? isoplanar ? powersaver ? supersot ? -6 uhc ? e 2 cmos ? littlefet ? powertrench ? supersot ? -8 unifet ? ensigna ? microcoupler ? qfet ? syncfet ? vcx ? fact ? microfet ? qs ? tcm ? wire ? fact quiet series ? micropak ? qt optoelectronics ? fast ? microwire ? quiet series ? fastr ? msx ? rapidconfigure ? across the board. around the world. ? fps ? msxpro ? rapidconnect ? programmable active droop ? frfet ? ocx ? scalarpump ? the power franchise ? disclaimer fairchild semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. fa irchild does not assume any liability arising out of the application or use of any product or circuit descri bed herein; neither does it convey any license under its patent rights, nor the rights of others. these s pecifications do not expand the terms of fairchild?s worldwide terms and conditions, specifically th e warranty therein, which covers these products. life support policy fairchild?s products are not authorized for use as critical components in life support devices or systems without the express written approval of fairchild 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 datasheet identification product status definition advance information formative or in design this datasheet contains the desi gn specifications for product development. specifications may change in any manner without notice. preliminary first production this datasheet contains preliminar y 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 this datasheet contains final spec ifications. fairchild semiconductor reserves the right to make changes at any time without notice to improve design. obsolete not in production this datasheet contains specifications on a product that has been discontinued by fairchild semiconductor. the datasheet is printed for reference information only. rev. i22
careers | sitema go datasheets, samples, buy technical information applications design center support company investors my f a home >> find products >> fan5029 8-bit programmable 2- to 5-phase synchronous buck controller general description back to top features contents ? general description ? features ? applications ? product status/pricing/packaging ? order samples ? application notes ? qualification support the fan5029 is a multi-phase buck switching regulator controller optimized to convert a 12v input supply to the processor core voltage required by highperformance intel? processors. it has an internal 8-bit dac that converts a digital voltage identification (vid) code that is sent from the processor to set the output voltage between 0.5v and 1.6v. it outputs a pwm to external mosfet drivers that , in turn, drive the switching power mosfets. the switching frequency of the design is programmable by a single resistor value and the number of phases can be programmed to support 2-, 3-, 4-, or 5-phase applications. the fan5029 also includes programmable no-load offset and droop functions to adjust the output voltage as a function of the load current, as required by the intel specifications. the fan5029 also provides an accurate and reliable short-circuit protection function with an adjustable over-current set point. the fan5029 is specified over the extended commercial temperature range of 0c to +85c and is available in a 40-lead mlp package. z selectable 2-, 3-, 4-, or 5-phase operation at up to 1 mhz per phase z 7.7 mv worst-case differential sensing error z active current balancing between all output phases datasheet download this datasheet e - mail this datasheet this page print version related links request samples how to order products product change notices (pcns) support sales support quality and reliability design cente r pa g e 1 of 3 product folder - fairchil d p/n fan5029 - 8-bit pro g rammable 2- to 5-phase s y nchronous buck controlle r 16-au g -2007 mhtml:file://c:\temp\FAN5029MPX.mht
product status/pricing/packaging back to top application notes back to top qualification support click on a product for detailed qualification data back to top applications back to top z power good and crowbar blanking supports on-the-fly vid code changes z selectable vr10 extended (7-bit) and vr11 (8-bit) vid tables z programmable short-circuit protection with programmable latch-off delay z programmable soft start ramp z desktop pc/server power supplies for next generation intel processors z vrm modules products product product status pb-free status pricing* package type leads packing method package marking convention** FAN5029MPX full production $1.14 mlp 40 tape reel line 1: $y (fairchild logo) & z (asm. plant code) & 2 (2-digit date code) & t (die trace code) line 2: 5029mp line 3: c * fairchild 1,000 piece budgetary pricing ** a sample button will appear if the part is available through fa irchild's on-line samples program. if there is no sample butt on, please contact a fairchild distributor to obtain samples indicates product with pb -free second-level interconne ct. for more information click here. package marking information for product fan5029 is available. click here for more information . a n - 6052: an - 6052 instructions for the multi - phase vr11 mathcad design tool (294 k) jul 27, 2007 pa g e 2 of 3 product folder - fairchil d p/n fan5029 - 8-bit pro g rammable 2- to 5-phase s y nchronous buck controlle r 16-au g -2007 mhtml:file://c:\temp\FAN5029MPX.mht
back to top product FAN5029MPX ? 2007 fairchild semiconductor products | design center | support | company news | investors | my fairchild | contact us | site index | privacy policy | site terms & conditions | standard terms & conditions o pa g e 3 of 3 product folder - fairchil d p/n fan5029 - 8-bit pro g rammable 2- to 5-phase s y nchronous buck controlle r 16-au g -2007 mhtml:file://c:\temp\FAN5029MPX.mht
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