LPD3015

Document 661-1
Coupled Inductors – LPD3015
For SEPIC and other
Applications
• Only 1.4 mm high and 3 mm square
• Ideal for use in flyback, multi-output buck, SEPIC and Zeta
applications.
• High inductance, high efficiency and excellent current
handling
• Can also be used as two single inductors connected in
series or parallel or as a common mode choke.
+
+
D
L1
C
L2
VOUT
C
VIN
–
SW
–
Typical Flyback Converter
D
L2
+
VOUT
C
AUX
–
+
0.118 ±0.003
3,00 ±0,076
Dot indicates pin 1
1
+
VIN
L1
D
SW
VOUT
C
–
4
–
Typical Buck Converter with auxiliary output
0.118 ±0.003
3,00 ±0,076
XXX X
2
Dash
number
L1
Internal
code
VIN
1
solder applied. Maximum height with
solder applied is 0.061 inches / 1,56 mm.
2
45°
typ
0.130
3,30
0.040
1,02
0.094
2,30
0.130
3,30
+
C1
L2
Q
C
+
L2
C1
Q
VIN
VOUT
–
Typical SEPIC schematic
+
–
3
2
*Height dimension is without optional
L1
4
0.022
0,54
0.094 0.040
2,30 1,02
0.039
0,99
C
–
0.055 ±0.004 *
1,4 ±0,1
1
D
+
3
L1
C
D
Typical Zeta schematic
C
VOUT
–
4
Dimensions are in
L2
inches
mm
3
Specifications subject to change without notice.
Please check our website for latest information.
Document 661-1 Revised 11/09/15
Document 661-2
Coupled Inductors for SEPIC - LPD3015 Series
Isat (A)6 Irms (A)
CouplingLeakage
2
3
4
5
Inductance DCR max SRF typ coefficient
L typ
10% 20%
30%
both
one
Part number1
windings7 winding8
±20% (µH) (Ohms)
(MHz)
typ
(µH)
drop
drop drop
LPD3015-391MR_
LPD3015-561MR_
LPD3015-102MR_
LPD3015-152MR_
LPD3015-182MR_
0.390.071289
0.560.079235
1.0 0.129160
1.5 0.204140
1.8 0.273135
0.89
0.93
0.95
0.96
0.96
0.083.23.33.4
0.082.72.82.8
0.09 2.0 2.12.2
0.11 1.6 1.71.8
0.13 1.5 1.61.6
1.45 2.05
1.37 1.94
1.08 1.52
0.86 1.20
0.78 1.10
LPD3015-222MR_ 2.2 0.300110
LPD3015-332MR_ 3.3 0.337 90
LPD3015-472MR_ 4.70.503
79
LPD3015-682MR_ 6.80.622
58
LPD3015-103MR_10 1.040
48
0.97 0.14 1.5 1.61.6
0.75 1.05
0.98 0.16 1.0 1.11.2
0.67 0.94
0.980.18
0.86
0.87
0.880.54
0.76
0.980.22
0.77
0.78
0.790.49
0.69
0.990.28
0.58
0.59
0.600.38
0.53
LPD3015-153MR_15
LPD3015-183MR_18
LPD3015-223MR_22
LPD3015-333MR_33
LPD3015-473MR_47
0.990.37
0.49
0.50
0.510.32
0.46
0.990.42
0.46
0.47
0.480.31
0.44
0.990.48
0.42
0.43
0.440.28
0.40
0.990.63
0.34
0.35
0.360.23
0.32
0.990.81
0.28
0.29
0.300.19
0.27
1.420
35
1.550
33
1.8930
2.8423
4.0317
LPD3015-683MR_68 6.1114 0.991.13
0.24
0.25
0.260.16
0.22
LPD3015-104MR_
100 8.5411 0.991.50
0.20
0.21
0.220.13
0.19
LPD3015-124MR_
120 9.23 9.00.991.76
0.19
0.20
0.200.13
0.18
LPD3015-154MR_
15012.40 8.00.992.22
0.16
0.17
0.180.11
0.16
LPD3015-184MR_
18015.32 7.50.992.79
0.15
0.16
0.170.10
0.14
LPD3015-224MR_
22018.56 6.00.993.56
0.13
0.14
0.150.09
0.13
LPD3015-334MR_
33027.70 5.00.995.18
0.11
0.12
0.120.07
0.10
1. When ordering, please specify termination and packaging codes:
Coupled Inductor Core and Winding Loss Calculator
LPD3015-334MRC
Termination:R= Matte tin over nickel over silver
Special order, added cost: Q = RoHS tin-silver-copper (95.5/4/0.5) or P = 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 25°C that causes the specified inductance drop 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. This information is
for reference only and does not represent absolute maximum ratings.
8. Maximum current when applied to one winding that causes a 40°C
temperature rise from 25°C ambient. This information is for reference
only and does not represent absolute maximum ratings.
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.
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 45 – 52 mg
Terminations RoHS compliant matte tin over nickel over silver.
Other terminations available at additional cost.
Ambient temperature –40°C to +85°C with (40°C rise) Irms current.
Maximum part temperature +125°C (ambient + temp rise).
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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 1000/7″ reel; 3500/13″ reel Plastic tape: 12 mm wide,
0.26 mm thick, 8 mm pocket spacing, 1.65 mm pocket depth
Recommended pick and place nozzle OD: 3 mm; ID: ≤ 1.5 mm
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Specifications subject to change without notice.
Please check our website for latest information.
Document 661-2 Revised 11/09/15
Document 661-3
Coupled Inductors for SEPIC - LPD3015 Series
Typical L vs Current
Typical L vs Frequency
1000
1000
330 µH
330 µH
220 µH
220 µH
100
100 µH
Inductance (µH)
Inductance (µH)
100
33 µH
22 µH
10
10 µH
3.3 µH
2.2 µH
1
100 µH
33 µH
22 µH
10
10 µH
3.3 µH
2.2 µH
1
1.0 µH
1.0 µH
0.1
0.1
0.01
0.1
Current (A)
1
10
0.01
Specifications subject to change without notice.
Please check our website for latest information.
0.1
1
Frequency (MHz)
10
Document 661-3 Revised 11/09/15