Document 820-1
Coupled Inductors
LPD5010
For Flyback, SEPIC, Zeta
and other Applications
The LPD5010 coupled miniature shielded inductors are
mere 1 mm high and 5 mm square. They are ideal for use
in a variety of circuits including flyback, multi-output buck,
SEPIC and Zeta.
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
–
0.189 ±0.003
4,80 ±0,076
–
Typical Buck Converter with auxiliary output
+
Recommended
Land Pattern
0.138
3,50
0.090
2,30
45°
typ
2
XXX X
Dash
number
3
D
+
C
V
OUT
Internal
code
L1
V
IN
C1
Q
C
L2
–
0.035 ±0.004
0,9 ±0,1
Typical SEPIC schematic
–
+
Q
V
IN
+
C1
0.134 0.090
3,40 2,30
0.030
0,75
0.197
5,00
L2
D
C
V
OUT
C
L1
0.060
1,52
1
L1
2
L2
4
0.060
1,50
0.134
3,40
0.197
5,00
–
Typical Zeta schematic
–
3
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 820-1
Revised 01/13/12
© Coilcraft Inc. 2014
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 820-2
Coupled Inductors for SEPIC Applications – LPD5010 Series
Part number
1
LPD5010-681ME_
LPD5010-102ME_
LPD5010-152ME_
LPD5010-222ME_
LPD5010-332ME_
LPD5010-472ME_
LPD5010-562ME_
LPD5010-682ME_
LPD5010-822ME_
LPD5010-103ME_
LPD5010-153ME_
LPD5010-223ME_
LPD5010-333ME_
LPD5010-473ME_
LPD5010-683ME_
LPD5010-104ME_
LPD5010-154ME_
LPD5010-224ME_
Inductance
2
±20% (µH)
0.68
1.0
1.5
2.2
3.3
4.7
5.6
6.8
8.2
10
15
22
33
47
68
100
150
220
DCR
(Ohms)
0.07
0.10
0.15
0.20
0.27
0.40
0.45
0.53
0.70
0.78
1.19
1.58
2.50
3.48
5.10
8.0
11.7
15.2
max
3
SRF
(MHz)
191
150
134
108
83
68
60
55
50
46
33
26
23
17.0
14.9
typ
4
Coupling Leakage
coefficient
L typ
5
typ
(µH)
0.95
0.95
0.97
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
0.07
0.09
0.09
0.11
0.13
0.15
0.16
0.19
0.22
0.27
0.34
0.40
0.48
0.63
0.90
1.39
2.10
3.02
10%
drop
2.6
2.1
1.7
1.5
1.2
0.98
0.90
0.83
0.74
0.67
0.53
0.45
0.37
0.31
0.25
0.21
0.17
0.14
Isat
(A)
6
20%
30%
drop
drop
2.7
2.1
1.8
1.6
1.3
1.0
0.93
0.86
0.77
0.69
0.55
0.47
0.38
0.32
0.26
0.22
0.17
0.15
2.8
2.2
1.8
1.6
1.3
1.1
0.94
0.87
0.78
0.70
0.56
0.48
0.39
0.33
0.27
0.22
0.18
0.15
Irms
(A)
both
one
windings
7
winding
8
1.95
1.50
1.20
1.10
0.95
0.75
0.70
0.60
0.50
0.50
0.42
0.35
0.30
0.25
0.19
0.15
0.12
0.11
2.76
2.12
1.70
1.56
1.34
1.06
0.99
0.85
0.71
0.71
0.59
0.49
0.42
0.35
0.26
0.21
0.16
0.15
11.2
9.90
8.05
1. Please specify
termination
and
packaging
codes:
LPD5010-224MEC
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 (1000 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 (3500 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 calcu-
lation.
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
60 – 70 mg
Environmental
RoHS compliant, halogen free
Terminations
RoHS compliant 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 Vrms
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
1000/7″ reel; 3500/13″ reel Plastic tape: 12 mm wide,
0.3 mm thick, 8 mm pocket spacing, 1.02 mm pocket depth
Recommended pick and place nozzle
OD: 5 mm; ID:
≤
2.5 mm
PCB washing
Tested with pure water or alcohol only. For other
solvents, see
Doc787_PCB_Washing.pdf.
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 820-2
Revised 01/13/12
© Coilcraft Inc. 2014
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.
Analog electronics
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