Surface Mount Power Inductor ELECTRONICS INC. EPI B44 & EPI B44-LF Series • 150 KHz Switching Frequency for National’s LM259X Series • Low loss material ensures operation in high frequency switching converters, such as Buck, Boost or as output averaging filter inductor • Also suitable for use in high quality filter applications • Add “-LF” after part number for Lead-Free • 500 KHz Switching Frequency Primary Specification Part Number National Semiconductor Chip Induct. (µH ± 15%) @ 0 Adc DCR (Ω Typ.) Induct. (µH 15%) @ Idc Idc (Amps) Vt1 (V-µSec) @ 500 KHz Vt2 (V-µSec) @ 150 KHz EPI0L8103B44(-LF) EPI1L5902B44(-LF) EPI2L2802B44(-LF) EPI3L3702B44(-LF) EPI4L5602B44(-LF) EPI6L5502B44(-LF) EPI100452B44(-LF) EPI150352B44(-LF) EPI220312B44(-LF) EPI330252B44(-LF) EPI470222B44(-LF) EPI560202B44(-LF) EPI680182B44(-LF) EPI101152B44(-LF) EPI151122B44(-LF) EPI221102B44(-LF) EPI331801B44(-LF) EPI471701B44(-LF) EPI681581B44(-LF) EPI102481B44(-LF) -------------LM259X-L34 LM259X-L33 LM259X-L32 LM259X-L31 --LM259X-L30 LM259X-L29 LM259X-L28 LM259X-L27 LM259X-L26 ------- 0.92 1.60 2.55 4.31 5.74 8.26 13.5 20.0 29.5 45.0 63.75 77.0 95.0 140 202 303 451 645 930 1372 .0036 .0048 .0061 .0079 .009 .014 .022 .027 .043 .065 .077 .121 .122 .182 .284 .427 .650 .778 1.20 1.45 .82 ± 20% 1.5 ± 20% 2.2 ± 20% 3.3 4.5 6.5 10 15 22 33 47 56 68 100 150 220 330 470 680 1000 10.0 9.0 8.0 7.0 6.0 5.0 4.5 3.5 3.1 2.5 2.2 2.0 1.8 1.5 1.2 1.0 0.8 0.7 0.58 0.48 1.2 1.6 2.0 2.6 3.0 3.6 4.6 5.6 6.8 8.4 10.0 11.0 12.2 14.8 17.8 21.8 26.6 31.8 38.2 46.4 --------------13.3 16.7 20.0 24.7 --30 36.7 43.3 53.3 65.3 ------- Temp.Rise @ Vt1 @ Vt2 °C (Typ.) °C (Typ.) 38 --40 --40 --40 --35 --37 --45 --36 38 41 43 41 43 39 41 44 --40 42 41 43 41 43 42 45 42 44 39 --41 --36 --- • Core Loss at Ref. Vt1 : 45 mW • Core Loss at Ref. Vt2 : 72 mW • .575 (14.61) PCA EPIXXXXXXB44(-LF) D.C. Package B44 Application .060 (1.52) Unregulated DC Input .550 (13.97) .600 (15.24) Suggested Pad Latout Cin Feedback +Vin LM259X Vsw + Output LX µH D1 1N5822 .510 (12.95) Gnd Regulated Output Load + Cout On/Off .390 Max. (9.90) Note: Coplanarity within .005” Max. .510 (12.95) EPIXXXXXXB44 EPIXXXXXXB44-LF 1. Lead Finish Notes : SnPb Hot Tin Dip (Sn) 2. Peak Temperature Rating 225°C 260°C 3. Weight (Tube) 4. Packaging Information (*Add “TR” to end of part number, but (Tape & Reel) in front of “-LF”when placing order) TBD grams TBD grams TBD pieces/tube TBD pieces/13” reel TBD pieces/tube TBD pieces/13” reel (*EPIXXXXXXB44TR) (*EPIXXXXXXB44TR-LF) Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25 PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 Product performance is limited to specified parameters. Data is subject to change without prior notice. CSIXXXXXXB44 & -LF Rev. 3 9/18/06 RR TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com