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This product may not be used in medical of high

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Specification subject to change without notice.

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CoupledInductorsforSEPICApplications–LPD5030Series

Document 757-2

Document 757-2 Revised 10/11/11

Coupling

Leakage

Irms (A)

10%

20%

30%

both

one

(µH)

(Ohms)

(MHz)

typ

(µH)

drop

drop

drop

LPD5030-102NE_

1.0 ±30%

0.042

156

0.95

0.09

4.6

4.8

5.0

2.60

3.68

LPD5030-152ME_

1.5 ±20%

0.048

123

0.97

0.09

3.9

4.2

4.3

2.20

3.11

LPD5030-222ME_

2.2 ±20%

0.067

78.0

0.98

0.10

3.1

3.3

3.4

2.15

3.04

LPD5030-332ME_

3.3 ±20%

0.077

65.0

0.98

0.10

2.5

2.7

2.8

1.85

2.62

LPD5030-472ME_

4.7 ±20%

0.111

53.0

0.99

0.11

2.1

2.2

2.2

1.45

2.05

LPD5030-562ME_

5.6 ±20%

0.125

48.0

0.99

0.11

2.0

2.0

2.1

1.35

1.91

LPD5030-682ME_

6.8 ±20%

0.159

43.0

0.99

0.12

1.8

1.9

1.9

1.20

1.70

LPD5030-103ME_

10 ±20%

0.210

31.0

0.99

0.13

1.3

1.3

1.3

1.05

1.48

LPD5030-153ME_

15 ±20%

0.298

25.0

0.99

0.15

1.2

1.4

1.4

0.85

1.20

LPD5030-223ME_

22 ±20%

0.452

19.0

>0.99

0.17

1.0

1.1

1.1

0.70

0.99

LPD5030-333ME_

33 ±20%

0.565

15.0

>0.99

0.20

0.80

0.84

0.85

0.60

0.85

LPD5030-473ME_

47 ±20%

0.806

12.6

>0.99

0.24

0.65

0.69

0.72

0.50

0.71

LPD5030-683ME_

68 ±20%

1.13

10.0

>0.99

0.29

0.50

0.54

0.55

0.46

0.64

LPD5030-104ME_

100 ±20%

1.79

8.32

>0.99

0.37

0.47

0.54

0.56

0.35

0.49

LPD5030-154ME_

150 ±20%

2.43

6.80

>0.99

0.46

0.38

0.43

0.45

0.31

0.43

LPD5030-224ME_

220 ±20%

3.30

5.55

>0.99

0.54

0.31

0.35

0.36

0.26

0.37

LPD5030-334ME_

330 ±20%

5.36

4.05

>0.99

0.65

0.25

0.25

0.32

0.20

0.28

LPD5030-474ME_

470 ±20%

7.51

3.35

>0.99

0.76

0.21

0.24

0.26

0.17

0.23

LPD5030-684ME_

680 ±20%

10.8

2.78

>0.99

0.89

0.17

0.20

0.21

0.14

0.19

LPD5030-105ME_

1000 ±20%

16.5

2.24

>0.99

1.20

0.15

0.17

0.17

0.11

0.15

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.

Temperature rise calculation based on specified Irms

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. Visit www.coilcraft.com/coupledloss.

Temperature rise = Winding power loss × 90°C

W

Winding power loss = (+

) × DCR in Watts (W)

II

L1

2

L2

2

Equal current in each winding (1.4 A):

Winding power loss = (1.4 + 1.4 ) × 0.111 = 0.435 W

Temperature rise = 0.435 W × 90°C

W

= 39.2°C

22

Unequal current (II

L1

L2

ower loss = (1.8 + 0.8 ) × 0.111 = 0.431 W

Temperature rise = 0.431 W × 90°C

W

= 38.8°C

22

= 1.8 A,

= 0.8 A):

Winding p

Examples for LPD5030-472ME: