Surface Mount Power Inductor ELECTRONICS INC. EPI B20 Series • Optimized 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 • 150 KHz & 500 KHz Switching Frequency • Low Cost Inductor Primary Specification Part Number National Semiconductor Chip Induct. (µH ± 20%) @ 0 Adc DCR (Ω Typ.) Induct. (µH 15%) @ Idc Idc (mA) EPI1L0342B20 EPI4L7122B20 EPI6L8951B20 EPI100801B20 EPI150701B20 EPI220601B20 EPI330441B20 EPI470371B20 EPI680321B20 EPI101261B20 EPI151211B20 EPI221181B20 ----------LM259X-L7 LM259X-L6 LM259X-L5 LM259X-L4 LM259X-L3 LM259X-L2 LM259X-L1 1.05 5.2 7.5 10.9 16.8 25 36.5 51.6 75 110 166 248 .011 .051 .061 .094 .148 .224 .343 .408 .625 .958 1.476 2.225 0.9 4.7 6.8 10 15 22 33 47 68 100 150 220 3400 1200 950 800 700 600 440 370 320 260 210 180 Core Loss @ Vt1 @ Vt2 (mW) (mW) ----------23.4 23.4 23.4 23.4 23.4 23.4 23.4 Vt1 (V-µSec) 150 KHz Vt2 (V-µSec) 260 KHz ----------6.6 8.0 9.3 11.3 14 17 20.6 0.5 2.0 2.4 3.0 3.6 --------------- 6.5 23.4 23.4 23.4 23.4 --------------- Temp.Rise @ Vt1 @ Vt2 °C (Typ.) °C (Typ.) 54 --40 --34 --35 --40 ----42 --38 --34 --37 --37 --37 --40 Application Unregulated DC Input Cin Feedback +Vin LM259X Vsw + LX Output µH D1 1N5822 Gnd Regulated Output Load + Cout On/Off Package B20 .330 (8.83) PCA EPIXXXXXXB20 D.C. .060 (1.52) .330 (8.38) .300 (7.62) Suggested Pad Latout .270 (6.86) .270 Max. (6.86) .260 (6.60) Note: Coplanarity within .005” Max. 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. CSIXXXXXXB20 Rev. 3 3/5/03 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com