lm257x-h470 PCA Electronics Inc., lm257x-h470 Datasheet - Page 43

• Manufacturer Part Number: lm257x-h470
• Description: Contents Surface Mount Power Inductor
• Manufacturer: PCA Electronics Inc.

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PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
(33.02)
1.300
EPI221302AC5
EPI331302AC5
EPI471202AC5
EPI681132AC5
EPI102951AC5
Max.
x
x x
x
x
Number
(9.53 ± 3.18)
Part
.375 ± .125
Package AC5V
.700 Max.
(19.78)
(12.70)
E L E C T R O N I C S I N C .
.500
Pad Layout
.060 Ø
Semiconductor
LM257X-H220
LM257X-H330
LM257X-H470
LM257X-H680
LM257X-H1000
(1.52)
(12.70)
National
.500
Chip
Product performance is limited to specified parameters. Data is subject to change without prior notice.
(60V for HV)
Unregulated
For no header version : add “V” for Vertical Mount and add “H” for Horizonal Mount
DC Input
7V-40V
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
(µH ± 20%)
(15.75)
Cin
(35.56)
@ 0 Adc
.625
1.400
Induct.
Max.
1093
260
437
542
757
+
+Vin
x x x x x x
x x x x x x x x
x x
x x x
x x
Gnd
(33.02)
CSIXXXXXXAC5
LM257X
1.300
• Optimized for National’s LM257X Series
• Low loss material ensures operation in high frequency switching
• Also suitable for use in high quality filter applications
• 52 KHz Switching Frequency
• Low Cost Inductor
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x x x
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Primary Specification
converters, such as Buck, Boost or as output averaging filter inductor
(Ω Typ.)
DCR
.090
.117
.210
.247
.297
Applications
Package AC5
Vsw
(2.79/3.81)
On/Off
.110/.150
Feedback
Output
Rev. 2
1N5822
(µH 10%)
D1
Induct.
@ Idc
1000
220
330
470
680
2/22/05 FT
.060 Ø
(1.52)
(12.70)
.500
EPI AC5 Series
Pad Layout
µH
LX
(19.78)
(12.70)
3000
3000
2000
1300
(mA)
950
Idc
.500
.700
+
Cout
Core Loss
Regulated
@ Vt1
(mW)
Output
510
280
210
150
110
Load
+5V
x x
x x
x x
x x x x
x x
x x
(33.02)
x
x x
x
x x
x x
x x x x
x x x x
x
x
1.300
Max.
(V-µSec)
(9.53 ± 3.18)
52 KHz
.375 ± .125
Package AC5H
230.8
230.8
230.8
230.8
230.8
Vt1
(33.02)
1.300
Max.
TEL: [phone]
FAX: [phone]
http://www.pca.com
Temp.Rise
°C (Typ.)
@ Vt1
Pad Layout
.060 Ø
(1.52)
23
26
20
12
(27.94)
9
1.100
(27.94)
1.100