E L E C T R O N I C S I N C .
Surface Mount Power Inductor
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
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
EPI B38 Series
Product performance is limited to specified parameters. Data is subject to change without prior notice.
Primary Specification
Unless Otherwise Specified Dimensions are in Inches /mm .010 /.25
CSIXXXXXXB38 Rev. 6 3/5/03
Package B38
.545
(13.94)
.510
(12.95)
.550
(103.97)
.510
(12.95)
.520
(13.21)
.060 (1.52)
Suggested
Pad
Latout
.350 Max.
(8.89)
Note: Coplanarity within .005" Max.
PCA
EPIXXXXXXB38
D.C.
Temp. Rise
Vt3
(V-sec)
@
150 KHz
---
---
---
---
---
---
---
12.7
---
14.7
---
18
---
22
---
26
---
---
---
---
32
38.7
---
46.7
56.7
---
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
Inductance
(H 15%)
@ 0 Adc
DCR
(
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
Vt2
(V-sec)
@
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
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
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
Inductance
(H 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-sec)
@
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
National
Semicon.
Chip
---
---
---
---
---
---
---
LM259X-L25
---
LM259X-L24
---
LM259X-L23
---
LM259X-L22
---
LM259X-L21
---
---
---
---
LM259X-L20
LM259X-L19
---
LM259X-L18
LM259X-L17
---
40
39
35
40
37
40
40
38
39
35
32
33
32
37
34
37
46
46
43
37
32
32
42
32
30
46
@ Vt1
C
(Typ.)
@ Vt2
C
(Typ.)
40
39
35
40
37
40
40
38
39
35
32
33
32
37
34
37
46
46
43
37
32
32
42
32
30
46
@ Vt3
C
(Typ.)
---
---
---
---
---
---
---
41
---
38
---
36
---
40
---
40
---
---
---
---
35
35
---
35
33
---
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.
Application
+Vin
Regulated
Output
Load
LX
H
D1
1N5822
Cin
Cout
Feedback
Output
Vsw
On/Off
Gnd
LM259X
+
+
Unregulated
DC Input
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