5A demo board

L6728

28/32

Table 7.

5A demo board - bill of material

13.1

Board description

13.1.1

Power input (Vin)

This is the input voltage for the power conversion. The High-Side drain is connected to this

input. This voltage can range from 1.5V to 12Vbus.

If the voltage is between 4.5V and 12V it can supply also the device (through the Vcc pin)

and in this case the R16 (0Ohm) resistor must be present.

Qty

Reference

Description

Package

Capacitors

2

C12, C51

MLCC, 10

µF, 16V, X5R

SMD1206

1

C10

MLCC, 100nF, 16V, X7R

SMD0603

2

C14, C38

MLCC, 1

µF, 16V, X7R

SMD0805

1C39

MLCC, 22

µF, 6.3V, X5R

SMD1206

1

C30

330

µF, 6.3V, 6TPF330M9L

SMD7434

2

C23, C36

MLCC, 6.8nF, X7R

SMD0603

1

C24

MLCC, 68nF, X7R

1

C35

MLCC, 220pF, X7R

Resistors

3

R1, R2, R17

Resistor, 3R3, 1/16W, 1%

SMD0603

3

R3, R5, R16

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

SMD0805

1

R4

Resistor, 1R8, 1/8W, 1%

1

R14

Resistor, 15R, 1/8W, 1%

2

R6, R9

Resistor, 2K2, 1/16W, 1%

SMD0603

2

R8, R13

Resistor, 3K9, 1/16W, 1%

1

R7

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

1

R19

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

1

R18

Resistor, 20K, 1/16W, 1%

Inductor

1L1

Inductor, 2,20

µH,

WURTH 744324220LF

na

Active Components

1

D1

Diode, BAT54

SOT23

1

Q5

STS9D8NH3LL

SO8

1

U1

Controller, L6728

DFN10, 3x3mm