pm-22 h i g h c u r r e n t ( f p 1 3 0 8 ) f l a t - p a c ? 1 3 0 8 description ? 125 maximum total temperature operation ? 12.9mm x 13.7mm x 8.0mm surface mount package ? high current handling capability, compact footprint ? ferrite core material ? inductance range from 110nh to 440nh ? current range from 120 amps to 32 amps ? frequency range up to 2mhz applications ? voltage regulator modules (vrm) for servers and microprocessors ? multi-phase buck inductors ? high frequency, high current switching power supplies environmental data ? storage temperature range: -40 to +125? ? operating temperature range: -40 to +125? (range is application specific) ? solder reflow temperature: +260 max. for 10 seconds maxim um p ackaging ? supplied in tape and reel packaging, 450 per reel fp1308 series flat-pac? high current power inductors part number rated ocl (1) irms(2) isat (3) dcr dcr k-factor inductance nh 10% amperes amperes m @25 m @25 (4) (nh) (typical) (maximum) fp1308-r11-r 110 110 68 120 0.20 0.24 21.330 fp1308-r21-r 210 210 68 72 0.20 0.24 21.333 fp1308-r26-r 260 260 68 60 0.20 0.24 21.335 fp1308-r32-r 320 320 68 45 0.20 0.24 21.340 FP1308-R44-R 440 440 68 32 0.20 0.24 21.366 (1) open circuit inductance test parameters: 100khz, 1.0v, 0.0adc. (2) irms: dc current for an approximate ? t of 40 without core loss. derating is necessar y f or a c currents . pcb layout, trace thickness and width, air-flow, and pro ximity of other heat generating components will affect the temperature rise. it is recommended that the temper ature of the par t not e xceed 125 c under w orst case operating conditions verified in the end application. (3) isat amperes peak f or 20% maximum rolloff (@25c) (4) k-f actor: used to determine b p-p for core loss (see graph). b p-p = k*l* ? i, b p-p(mt), k: (k factor from table), l: (inductance in ?), ? i (p eak to peak r ipple current in amps). (5) part number definition: fp1308-xxx-r fp1308 = product code and siz e; -xxx = inductance v alue in uh; r = decimal point; if no r is present, third character = # of zeros. -r suffix = rohs compliant ro hs 2002/95/ec dimensions are in millimeters. wwlly = date code . r = re vision le vel. 1 2 fp1308- xxx wwll y y r 12.95 max. 13.70 max. 8.0 max. 5.4 2.54 ( 2plcs) 8.0 7.62 3.18 7.2 1 2 top view b ott om view rec ommend ed p cb layout fr ont v iew left view s chem atic mechanical diagrams
pm-23 h i g h c u r r e n t ( f p 1 3 0 8 ) f l a t - p a c ? 1 3 0 8 fp1308 series flat-pac? high current power inductors core loss core loss vs bp-p 0.0001 0.001 0.01 0.1 1 10 1 10 100 1000 bp-p(mt) 1mhz 50 0khz 30 0khz 10 0khz 50khz c o r e l o s s ( w ) 2.0 4 .0 fp1 308-xxx wwllyy r 1.5 dia +0.1/-0.0 b0 1 .75 24.0 +/-0.3 a a 0 section a-a k0 user d ire ction of feed a 1 .5 dia min 11.5 b0= 1 3.90 mm a0= 13.20 mm k0= 8.20 mm parts packaged on 13" diameter reel, 450 parts per reel. packaging information
pm-24 h i g h c u r r e n t ( f p 1 3 0 8 ) f l a t - p a c ? 1 3 0 8 ocl vs isat 0% 20% 40% 6 0% 80% 1 00% 120% 0% 20% 40% 60% 80% 100% 120% 140% 160% % of isat % o f o c l +25 deg.c - 40 d eg.c +125 d eg.c inductance characteristics fp1308 series flat-pac? high current power inductors temperature rise vs. loss 0 20 40 60 80 1 00 0 0.5 1 1.5 2 2.5 3 total loss( w) t e m p e r a t u r e r i s e ( c )
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