L6728AH datasheet(22/33 Pages) STMICROELECTRONICS

22 / 33 page

20 A demonstration board

L6728AH

22/33

Doc ID 15726 Rev 1

Table 6.

20A demonstration board - bill of material (common components)

Qty

Reference

Description

Package

Capacitors

2C1, C2

Electrolytic capacitor 1800

μF 16 V

Sanyo P/N 16ME1800WG

Radial 10 x 23 mm

1C10

MLCC, 100 nF, 50 V, X7R

Murata GRM188R71H104K

SMD0603

C11 to C13

MLCC, 4.7

μF, 16 V, X7R

Murata GRM31CR71C475K

SMD1206

2C14, C38

MLCC, 1

μF, 16 V, X7R

Murata GRM21BR71C105K

SMD0805

C3 to C9, C15 to C20, C39 to

C59, C36, C37, C21 to C23,

C25 to C29, C31 to C34

Not mounted

N.A.

1C30

POSCAP 470

μF, 6.3 V, 10 mΩ

Sanyo P/N 6TPD470M

SMD1206

1C24

MLCC, 47 nF, 50 V, X7R

Murata GRM188R71H473K

SMD0603

1C35

MLCC, 100 pF, 50 V, X7R

Murata GRM188R71H101K

Resistors

R1, R2, R20, R17

Resistor, 2R2, 1/16W, 1%

SMD0603

R3, R5, R11, R12, R16

Resistor, 0R, 1/8W, 1%

SMD0805

R4, R10, R14, R15, R21

Not mounted

N.A.

R19

Resistor, 22 K, 1/16W, 1%

SMD0603

R18

Resistor, 18 K, 1/16W, 1%

Inductor

1L1

Wurth SMD power inductor

670 nH - 1.75 m

Ω - 40 A

P/N 744-315-067

N.A.

1L2

Not mounted

Active components

Diode, 1N4148

SOT23

Q1 to Q4, Q8

Not mounted

N.A.

STD70NH02L

DPACK

STD95NH02L

Controller, L6728AH

VFQFPN10,

3x3 mm

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