FP1308 Series FLAT-PAC™ High Current Power Inductors Description RoHS 2002/95/EC • 125°C 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°C to +125°C • Operating temperature range: -40°C to +125°C (range is application specific) • Solder reflow temperature: +260°C max. for 10 seconds maximum Part Number FP1308-R11-R FP1308-R21-R FP1308-R26-R FP1308-R32-R FP1308-R44-R Rated Inductance (nH) 110 210 260 320 440 Packaging • Supplied in tape and reel packaging, 450 per reel OCL (1) nH±10% Irms(2) Amperes Isat (3) Amperes 110 210 260 320 440 68 68 68 68 68 120 72 60 45 32 (1) Open Circuit Inductance Test Parameters: 100kHz, 1.0V, 0.0Adc. (2) Irms: DC current for an approximate ∆T of 40°C without core loss. Derating is necessary for AC currents. PCB layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise. It is recommended that the temperature of the part not exceed 125°C under worst case operating conditions verified in the end application. (3) Isat Amperes peak for 20% maximum rolloff (@25°C) DCR mΩ @25°C (Typical) 0.20 0.20 0.20 0.20 0.20 DCR mΩ @25°C (Maximum) 0.24 0.24 0.24 0.24 0.24 K-factor (4) 21.330 21.333 21.335 21.340 21.366 (4) K-factor: 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 µH), ∆I (Peak to peak ripple current in Amps). (5) Part Number Definition: FP1308-xxx-R FP1308 = Product code and size; -xxx = Inductance value in uH; R = decimal point; If no R is present, third character = # of zeros. -R suffix = RoHS compliant Mechanical Diagrams 1 7.62 2.54 (2plcs) 12.95 max. SCHEMATIC RECOMMENDED PCB LAYOUT FRONT VIEW BOTTOM VIEW TOP VIEW 1 3.18 5.4 13.70 max. FP1308-XXX wwllyy R 7.2 8.0 LEFT VIEW 2 8.0 max. Dimensions are in millimeters. wwlly = Date Code. R = Revision level. 2 FP1308 Series FLAT-PAC™ High Current Power Inductors Packaging Information 1.5 dia +0.1/-0.0 4.0 A 1.5 dia min 2.0 1.75 11.5 24.0 +/-0.3 B0 FP1308-XXX wwllyy R K0 A A0 SECTION A-A A0= 13.20 mm B0= 13.90 mm K0= 8.20 mm User direction of feed Parts packaged on 13" Diameter reel, 450 parts per reel. Core Loss Core loss vs Bp-p 500kHz 100kHz 10 Core Loss (W) 1 300kHz 1MHz 50kHz 0.1 0.01 0.001 0.0001 1 10 Bp-p(mT) 100 1000 FP1308 Series FLAT-PAC™ High Current Power Inductors Temperature Rise(°C) Temperature Rise vs. Loss 100 80 60 40 20 0 0 0.5 1 Inductance Characteristics 1.5 2 Total Loss(W) 2.5 3 OCL vs Isat 120% 100% % of OCL 80% 60% 40% +25 Deg.C 20% -40 Deg.C +125 Deg.C 0% 0% 20% 40% 60% 80% 100% 120% 140% 160% % of Isat PM-4148 3/07 © Cooper Electronic Technologies 2007 Visit us on the Web at www.cooperbussmann.com 1225 Broken Sound Pkwy. Suite F Boca Raton, FL 33487 Tel: +1-561-998-4100 Toll Free: +1-888-414-2645 Fax: +1-561-241-6640 This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Electronic Technologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Electronic Technologies also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. Life Support Policy: Cooper Electronic Technologies does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.