Thru-Hole Power Inductor
ELECTRONICS INC.
EPI AC1 Series
• Optimized for National’s LM267X & 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 & 260 KHz Switching Frequency
• Low Cost Inductor
Primary Specification
Part
Number
EPI100452AC1
EPI150352AC1
EPI150352AC1
National
Semiconductor
Chip
LM267X-L45
LM267X-L34
LM259X-L34
Induct.
(µH ± 15%)
@ 0 Adc
13.5
20.0
20.0
DCR
(Ω Typ.)
0.022
0.035
0.035
Induct.
(µH 10%)
@ Idc
10
15
15
Idc
(mA)
4500
3500
3500
Core Loss
@ Vt1
@ Vt2
(mW)
(mW)
---
---
55
55
55
---
Vt1
(V-µSec)
150 KHz
---
---
12.7
Vt2
(V-µSec)
260 KHz
7.2
8.7
---
Temp.Rise
@ Vt1
@ Vt2
°C (Typ.) °C (Typ.)
---
---
43
45
43
---
For no header version : add “V” for Vertical Mount and add “H” for Horizonal Mount
Applications
Unregulated
DC Input
Feedback
+Vin
Regulated
Output
Load
+
Cout
On/Off
Gnd
CB
Vin
8V-40V
+
Cin
FB
LM259X
Vsw
Output
D1
1N5822
LX
µH
LM267X
Vsw
10nF
LX
µH
+
Vout
Cout
Cin
+
D1
Gnd
On/Off
Package AC1V
Pad Layout
.185
(4.70)
.060 Ø
(1.52)
.580
Max.
(14.99)
Package AC1
Pad Layout
.060 Ø
(1.52)
.220
(5.59)
Package AC1H
.550
Max.
(13.97)
.250 Max.
(6.35)
.550
Max.
(13.97)
.360
9.14)
.375 ± .125
(9.53 ± 3.18)
.465
(11.81)
Pad Layout
.550
Max.
(13.97)
.465
(11.81)
.715
Max.
(18.16)
.375 ± .125
(9.53 ± 3.18)
.185
(4.70)
.290
(7.37)
.110/.150
(2.79/3.81)
.220
(5.59)
.060 Ø
(1.52)
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.
CSIXXXXXXAC1
Rev. 3
2/22/05
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
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