ELECTRONICS INC.
Surface Mount Power Inductor
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
Part
Number
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)
Primary Specification
National
Induct.
DCR
Semiconductor (µH ± 15%) (Ω Typ.)
Chip
@ 0 Adc
Induct.
(µH 15%)
@ Idc
Idc
(Amps)
Vt1
(V-µSec)
@ 500 KHz
Vt2
(V-µSec)
@ 150 KHz
--
---
---
---
---
---
---
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
• Core Loss at Ref. Vt1 : 45 mW • Core Loss at Ref. Vt2 : 72 mW •
---
---
---
---
---
---
---
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 ---
.575
(14.61)
Package B44
.060 (1.52)
PCA
EPIXXXXXXB44(-LF)
.600
D.C. (15.24)
.550 Suggested
(13.97)
Pad
Latout
.510
(12.95)
Application
Unregulated
DC Input +Vin
+
Cin
Feedback
LM259X Output
Vsw
D1
1N5822
Gnd On/Off
Regulated
Output
LX Load
µH
+ Cout
.390 Max.
(9.90)
Note: Coplanarity within .005” Max.
.510
(12.95)
Notes :
1. Lead Finish
2. Peak Temperature Rating
3. Weight
4. Packaging Information
(Tube)
(*Add “TR” to end of part number, but
in front of “-LF”when placing order) (Tape & Reel)
EPIXXXXXXB44
SnPb
225°C
TBD grams
TBD pieces/tube
TBD pieces/13” reel
(*EPIXXXXXXB44TR)
EPIXXXXXXB44-LF
Hot Tin Dip (Sn)
260°C
TBD grams
TBD pieces/tube
TBD pieces/13” reel
(*EPIXXXXXXB44TR-LF)
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
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
