LM259X-L20

Surface Mount Power Inductor ELECTRONICS INC. EPI B38 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 • 200 KHz & 500 KH KHz Switching Frequency • Low Cost Inductor Primary Specification Part Number EPI1L1942B38 EPI1L9802B38 EPI3L0662B38 EPI5L0502B38 EPI6L6442B38 EPI100342B38 EPI120282B38 EPI150262B38 EPI180232B38 EPI220182B38 EPI270162B38 EPI330142B38 EPI390122B38 EPI470112B38 EPI560102B38 EPI680102B38 EPI2L8802B38 EPI4L9542B38 EPI170272B38 EPI600132B38 EPI101821B38 EPI151661B38 EPI201901B38 EPI221551B38 EPI331421B38 EPI381721B38 National Semicon. Chip --------------LM259X-L25 --LM259X-L24 --LM259X-L23 --LM259X-L22 --LM259X-L21 --------LM259X-L20 LM259X-L19 --LM259X-L18 LM259X-L17 --Inductance (µH ± 15%) @ 0 Adc 1.3 2.3 3.6 6.0 8.1 11.6 14.4 17.4 20.7 24.0 30.0 37.0 41.6 52.0 60.5 76 3.6 6.1 20.7 69.7 113 166 260 242 360 518 DCR (Ω Typ.) .004 .005 .006 .013 .020 .030 .042 .046 .062 .087 .097 .130 .174 .248 .268 .300 .0063 .0132 .050 .180 .365 .560 .434 .836 1.30 .783 Idc (Amps) 9.4 8.0 6.6 5.0 4.4 3.4 2.8 2.6 2.3 1.8 1.6 1.4 1.2 1.1 1.0 1.0 8.0 5.4 2.7 1.3 .82 .66 .90 .55 .42 .72 Inductance (µH ± 15%) @ Idc 1.1 1.9 3.0 5.0 6.6 10.0 12.0 15.0 18.0 22.0 27.0 33.0 39.0 47.0 56.0 68.0 2.8 4.9 17 60 100 150 200 220 330 380 Vt1 (V-µsec) @ 200 KHz 2.3 3.1 3.9 5.0 5.8 7.0 7.8 8.5 9.3 10.0 11.3 12.4 13.3 14.8 16.0 19.5 3.8 5.0 9.0 17 21.5 26 33 31.5 38.5 46.5 Vt2 (V-µsec) @ 500 KHz 1.0 1.3 1.6 2.0 2.3 2.8 3.1 3.4 3.7 4.0 4.5 5.0 5.3 5.9 6.4 7.8 2.0 2.8 5.2 9.4 12 14.8 18.2 17.6 21.6 26 Vt3 (V-µsec) @ 150 KHz --------------12.7 --14.7 --18 --22 --26 --------32 38.7 --46.7 56.7 --Temp. Rise @ Vt1 @ Vt2 °C °C (Typ.) (Typ.) 40 40 39 39 35 35 40 40 37 37 40 40 40 40 38 38 39 39 35 35 32 32 33 33 32 32 37 37 34 34 37 37 46 46 46 46 43 43 37 37 32 32 32 32 42 42 32 32 30 30 46 46 @ Vt3 °C (Typ.) --------------41 --38 --36 --40 --40 --------35 35 --35 33 --- Package B38 .545 (13.94) PCA EPIXXXXXXB38 D.C. Application .060 (1.52) Unregulated DC Input Feedback +Vin Regulated Output Load + Cout LM259X Vsw Output D1 1N5822 LX µH .550 (103.97) .520 (13.21) Suggested Pad Latout Cin + .510 (12.95) Gnd On/Off .350 Max. (8.89) .510 (12.95) Note: Coplanarity within .005” Max. Notes : 1. Core loss at ref. Vt 1 & VT 2 = 37 mW 2. Core loss at ref. Vt 3 = 67 mW 3. Inductance change at Idc: 20% Max. 4. 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. CSIXXXXXXB38 Rev. 6 3/5/03 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com