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AN1894 - APPLICATION NOTE

2.1.3 Bill of Materials

The bill of material that corresponds to the Figure 1 can be seen in Table 1.

Table 1: Bill of Material for Non Isolated Buck Converter with Positive Output Voltage

Ref.

Q.ty

Value

Description

CON1

1

WECO 10.877.002 - clamp, 2 pole, horizontal, type 94 380V 15A

CON2

1

WECO 10.877.003 - clamp, 3 pole, horizontal, type 94 380V 15A

C1, C2

2

4.7uF

Nippon Chemi-Con KMG 400 VB 4R7 M Electrolytic capacitor KMG 400V 20%

C3

1

56uF

Nippon Chemi-Con LXY 35 VB 56 M F11 Electrolytic capacitor LXY 35V 273mA

0.35R 20% -

C4

1

10uF

Nippon Chemi-Con KME 50 VB 10 M Electrolytic capacitor KME 50V 20%

C6

1

22nF

Ceramic capacitor X7R 50V 10%

C7

1

100nF

Ceramic capacitor X7R 50V 10%

C8

1

100nF

Ceramic capacitor X7R 50V 10%

D1, D2

2

GL1M

Diotec GL1M diode, trr=1.5us 1000V 1A

D3

1

ZMM13

Zener diode 13V 0.5W 5%

D4, D5

2

RGL34J

Diotec RGL34J Fast recovery diode trr=250ns 600V 0.5A

D6

1

ZMM18

Zener diode 18V 0.5W 5%

D7

1

LL4148

LL4148 diode 75V 200mA

L1

1

1.5mH

EPCOS B78108-S1155-J inductor, bobbin core BC 100mA 23R 10%

L2

1

1mH

EPCOS B82144-A2105-J inductor, large bobbin core LBC 200mA 3.8R 10%

R1

1

10R

Yageo 254-0 10R 5% 1J resistor, wirewound, fusible, TK120 CRF 254-4 3W 5%

R3

1

1k

resistor, metal film 100V 0.125W 1%

R5

1

0R

resistor, metal film

R6

1

0R

resistor, metal film

U1

1

VIPer12AS

STMicroelectronics VIPer12AS Off-line SMPS Primary IC 730V 0.4A 27R

U2

1

L78L05CD

STMicroelectronics L78L05CD positive voltage regulator 5V 100mA 10%, for

variant 1b

U3

1

L78M05CDT

STMicroelectronics L78M05CDT positive voltage regulator 5V 0.5A 5%, for

variant 1a