Document 757-1
Coupled Inductors
LPD5030
For Flyback, SEPIC, Zeta
and other Applications
The LPD5030 coupled miniature shielded inductors are
only 3 mm high and 5 mm square. They are ideal for
use in a variety of circuits including flyback, multi-output
buck and SEPIC.
These inductors provide high inductance, high efficiency
and excellent current handling in a rugged, low cost part.
They can also be used as two single inductors connected
in series or parallel or as a common mode choke.
+
D
+
L1
V
IN
C
SW
L2
C
V
OUT
–
–
Typical Flyback Converter
+
C
V
OUT
AUX
L2
0.189 ±0.003
4,80 ±0,076
1
4
D
–
Dot indicates pin 1
+
V
IN
SW
D
+
L1
C
V
OUT
2
XXX X
Dash
number
0.189 ±0.003
4,80 ±0,076
3
–
–
Typical Buck Converter with auxiliary output
+
L1
C1
Q
D
Internal
code
+
C
V
OUT
0.114 ±0.004
2,90 ±0,10
Recommended
Land Pattern
0.138
3,50
0.090
2,30
45°
typ
V
IN
C
L2
–
Typical SEPIC schematic
–
+
Q
V
IN
+
C1
L2
D
C
V
OUT
0.134 0.090
3,40 2,30
0.030
0,75
0.197
5,00
C
L1
–
0.060
1,52
1
L1
2
L2
3
4
0.060
1,50
0.134
3,40
0.197
5,00
Typical Zeta schematic
–
Dimensions are in
inches
mm
US
+1-847-639-6400 sales@coilcraft.com
UK
+44-1236-730595 sales@coilcraft-europe.com
Taiwan
+886-2-2264 3646 sales@coilcraft.com.tw
China
+86-21-6218 8074 sales@coilcraft.com.cn
Singapore
+ 65-6484 8412 sales@coilcraft.com.sg
Document 757-1
Revised 06/21/13
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
Document 757-2
Coupled Inductors for SEPIC Applications – LPD5030 Series
Part number
1
LPD5030-102NE_
LPD5030-152ME_
LPD5030-222ME_
LPD5030-332ME_
LPD5030-472ME_
LPD5030-562ME_
LPD5030-682ME_
LPD5030-103ME_
LPD5030-153ME_
LPD5030-223ME_
LPD5030-333ME_
LPD5030-473ME_
LPD5030-683ME_
LPD5030-104ME_
LPD5030-154ME_
LPD5030-224ME_
LPD5030-334ME_
LPD5030-474ME_
LPD5030-684ME_
LPD5030-105ME_
Inductance
2
(µH)
1.0 ±30%
1.5 ±20%
2.2 ±20%
3.3 ±20%
4.7 ±20%
5.6 ±20%
6.8 ±20%
10 ±20%
15 ±20%
22 ±20%
33 ±20%
47 ±20%
68 ±20%
100 ±20%
150 ±20%
220 ±20%
330 ±20%
470 ±20%
680 ±20%
1000 ±20%
DCR
(Ohms)
0.042
0.048
0.067
0.077
0.111
0.125
0.159
0.210
0.298
0.452
0.565
0.806
1.13
1.79
2.43
3.30
5.36
7.51
10.8
16.5
max
3
SRF
(MHz)
153
118
87.0
61.0
49.0
44.0
40.0
28.0
23.0
17.0
typ
4
Coupling Leakage
coefficient
L typ
5
typ
(µH)
0.95
0.97
0.98
0.98
0.99
0.99
0.99
0.99
0.99
>0.99
>0.99
>0.99
>0.99
>0.99
>0.99
>0.99
>0.99
>0.99
>0.99
>0.99
0.09
0.09
0.10
0.10
0.11
0.11
0.12
0.13
0.15
0.17
0.20
0.24
0.29
0.37
0.46
0.54
0.65
0.76
0.89
1.20
10%
drop
4.30
3.90
2.80
2.50
2.10
1.80
1.40
1.20
1.00
0.89
0.73
0.59
0.50
0.47
0.38
0.31
0.25
0.21
0.17
0.15
Isat
(A)
6
20%
30%
drop
drop
4.49
4.20
2.98
2.70
2.20
1.80
1.48
1.20
1.17
0.98
0.77
0.63
0.54
0.54
0.43
0.35
0.25
0.24
0.20
0.17
4.67
4.30
3.07
2.80
2.20
1.89
1.48
1.20
1.17
0.98
0.78
0.65
0.55
0.56
0.45
0.36
0.32
0.26
0.21
0.17
Irms
(A)
both
one
windings
7
winding
8
2.20
2.05
1.95
1.70
1.40
1.35
1.20
1.05
0.85
0.70
0.60
0.50
0.43
0.33
0.28
0.24
0.18
0.15
0.13
0.10
3.11
2.90
2.76
2.40
1.98
1.91
1.70
1.48
1.20
0.99
0.85
0.71
0.61
0.47
0.40
0.34
0.25
0.21
0.18
0.14
16.0
12.0
9.00
8.44
6.72
5.53
4.17
3.52
2.93
2.33
1. Please specify
termination
and
packaging
codes:
LPD5030-105MEC
Termination:E
= RoHS compliant, halogen free silver-palladium-
platinum-glass frit.
Special order:
T
= RoHS tin-silver-copper (95.5/4/0.5) or
S
= non-RoHS tin-lead (63/37).
Packaging: C
= 7″ machine-ready reel. EIA-481 embossed plastic
tape (750 parts per full reel).
B
= Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge), use
code letter D instead.
D
= 13″ machine-ready reel. EIA-481 embossed plastic
tape. Factory order only, not stocked (2500 parts per
full reel).
2. Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms,
0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads
are connected in parallel, inductance is the same value. When leads
are connected in series, inductance is four times the value.
3. DCR is for each winding. When leads are connected in parallel, DCR
is half the value. When leads are connected in series, DCR is twice the
value.
4. SRF measured using an Agilent/HP 4191A or equivalent. When leads
are connected in parallel, SRF is the same value.
5. Leakage Inductance is for L1 and is measured with L2 shorted.
6. DC current, at which the inductance drops the specified amount from
its value without current. It is the sum of the current flowing in both
windings.
7. Equal current when applied to each winding simultaneously that
causes a 40°C temperature rise from 25°C ambient. See temperature
rise calculation.
8. Maximum current when applied to one winding that causes a 40°C
temperature rise from 25°C ambient. See temperature rise calculation.
9. Electrical specifications at 25°C.
Refer to Doc 639 “Selecting Coupled Inductors for SEPIC Applications.”
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Coupled Inductor Core and Winding Loss Calculator
This web-based utility allows you to enter frequency, peak-to-peak
(ripple) current, and
Irms
current to predict temperature rise and overall
losses, including core loss.
Go to online calculator
.
Core material
Ferrite
Core and winding loss
Go to online calculator
Weight
210 – 225 mg
Terminations
RoHS compliant, halogen free silver-palladium-platinum
glass frit. Other terminations available at additional cost.
Ambient temperature
–40°C to +85°C with
Irms
current, +85°C to
+125°C with derated current
Storage temperature
Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Winding to winding isolation
100 V
Resistance to soldering heat
Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL)
1 (unlimited floor life at <30°C /
85% relative humidity)
Mean Time Between Failures (MTBF)
26,315,789 hours
Packaging
750/7″ reel; 2500/13″ reel Plastic tape: 12 mm wide,
0.32 mm thick, 8 mm pocket spacing, 3.1 mm pocket depth
Recommended pick and place nozzle
OD: 5 mm; ID:
≤
2.5 mm
PCB washing
Only pure water or alcohol recommended
Specifications subject to change without notice.
US
+1-847-639-6400 sales@coilcraft.com
Please check
sales@coilcraft-europe.com
UK
+44-1236-730595
our website for latest information.
Taiwan
+886-2-2264 3646 sales@coilcraft.com.tw
China
+86-21-6218 8074 sales@coilcraft.com.cn
Singapore
+ 65-6484 8412 sales@coilcraft.com.sg
Document 757-2
Revised 06/21/13
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
Document 757-3
Coupled Inductors for SEPIC Applications – LPD5030 Series
Typical L vs Current
10000
Typical L vs Frequency
10000
1000
1000 µH
330 µH
1000
1000 µH
330 µH
Inductance (µH)
Inductance (µH)
100
100 µH
33 µH
100
100 µH
33 µH
10
10 µH
3.3 µH
10
10 µH
3.3 µH
1
0.01
0.1
1
10
1
0.1
1
10
100
Current (A)
Frequency (MHz)
Typical Current Derating
120
110
Percent of rated current
100
90
80
70
60
50
40
20
10
0
Isat
Irms
-40
-20
0
20
25°C
40
30
60
80
100
120 140
Ambient temperature (°C)
Specifications subject to change without notice.
US
+1-847-639-6400 sales@coilcraft.com
Please check
sales@coilcraft-europe.com
UK
+44-1236-730595
our website for latest information.
Taiwan
+886-2-2264 3646 sales@coilcraft.com.tw
China
+86-21-6218 8074 sales@coilcraft.com.cn
Singapore
+ 65-6484 8412 sales@coilcraft.com.sg
Document 757-3
Revised 06/21/13
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
