E L E C T R O N I C S I N C .

Surface Mount Power Inductor

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

PCA ELECTRONICS, INC.

16799 SCHOENBORN ST.

NORTH HILLS, CA 91343

• General Purpose Power Inductors

• Low loss material ensures operation in high frequency switching

converters, such as Buck, Boost or as output averaging filter inductor

• Also suitable for use in high quality filter applications

• 500 KHz & 200 KHz Switching Frequency

EPI B50 Series

Product performance is limited to specified parameters. Data is subject to change without prior notice.

Primary Specification

Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25

CSIXXXXXXB50

Rev. 3

3/5/03

Induct.

(µH 15%)

@ Idc

1.0 ± 20%

1.5 ± 20%

2.2 ± 20%

3.3

4.7

6.8

10

15

22

33

47

56

60

68

100

150

220

330

470

680

1000

Temp.Rise

1.18

1.9

2.9

4.0

6.1

9.6

16.2

21.3

29.4

44.3

62.4

73

64.9

81

118

177

270

418

607

894

1314

Induct.

(µH ± 15%)

@ 0 Adc

DCR

(

Ω Typ.)

.0037

.0047

.0058

.0069

.0085

.0106

.016

.026

.037

.061

.086

.121

.100

.202

.300

.460

.566

.705

.850

1.03

1.25

Vt1

(V-µSec)

@ 500 KHz

1.4

1.8

2.2

2.6

3.2

4.0

5.0

6.0

7.0

8.6

10.2

11.0

---

11.6

13.6

17.2

21.2

26.4

31.8

38.6

46.

@ Vt1

°C (Typ.)

35

39

39

37

40

40

37

40

36

38

38

37

---

36

34

36

36

36

34

31

27

Part

Number

EPI1L0113B50

EPI1L5103B50

EPI2L2942B50

EPI3L3832B50

EPI4L7792B50

EPI6L8702B50

EPI100552B50

EPI150452B50

EPI220352B50†

EPI330292B50

EPI470242B50

EPI560202B50

EPI600102B50

EPI680152B50

EPI101122B50

EPI151102B50

EPI221901B50

EPI331801B50

EPI471701B50

EPI681601B50

EPI102501B50

Idc

(Amps)

11.0

10.4

9.4

8.3

7.9

7.0

5.5

4.5

3.5

2.9

2.4

2.0

1.0

1.5

1.2

1.0

0.9

0.8

0.7

0.6

0.5

Vt2

(V-µSec)

@ 200 KHz

---

---

---

---

---

---

---

---

---

---

---

---

19.8

---

---

---

---

---

---

---

---

@ Vt2

°C (Typ.)

---

---

---

---

---

---

---

---

---

---

---

---

14

---

---

---

---

---

---

---

---

Package B50

.660

(16.76)

.580

(14.73)

.690

(17.53)

.590

(14.99)

.620

(15.75)

.060 (1.52)

Suggested

Pad

Latout

.380 Max.

(9.65)

Note: Coplanarity within .005” Max.

PCA

EPIXXXXXXB50

D.C.

• Core Loss at Ref. Vt1 : 48 mW • Core Loss at Ref. Vt2 : 53.7 mW •

• †National Chip : LM259X-L41 •

+Vin

Regulated

Output

Load

LX

µH

D1

1N5822

Cin

Cout

Feedback

Output

Vsw

On/Off

Gnd

LM259X

+

+

Unregulated

DC Input

Application