STW4510 datasheet(50/57 Pages) STMICROELECTRONICS

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Application information

STw4510

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Application information

6.1

Components list

Table 30.

Components list

Name

Value

Comments

Function

10µF

In the complete system application, the

sum of the capacitors connected on each

STw4510 ball must never be less than

30% of the value indicated in the typical

value column of this table. This includes

all capacitor parameters:

– production dispersion

– DC bias voltage applied

– temperature range of the complete

system application

– aging

Vbat_Vsdc1 decoupling

Vbat_Vsdc2 decoupling

Vbat_ana decoupling

22µF

Vsdc1 output filter

Vsdc2 output filter

1 µF

Vbat_osc output filter

VddIO output filter

C11

Vbat_dig output filter

C13

Vbat_Vana1_Vana3 output filter

C16

Vbat_Vana2 output filter

C18

Vbat_Vmmc output filter

C10

2.2µF

Vref output filter

C12

Vdig output filter

C14

Vana3 output filter

C15

Vana1output filter

C17

Vana2 output filter

C19

Vmmc output filter

4.7µH

see:

Table 31

Coil Vsdc2 DC/DC

Coil Vsdc1 DC/DC

Table 31.

List of 4.7 µH coils

Supplier

Part number

DCR (

Ω)Irms(1) (A)

L x l x h (mm x mm x mm)

TDK

VLF3010AT-4R7MR70

0.28

0.7

2.8 * 2.6 * 1.0

VLF3012AT-4R7MR74

0.16

0.74

2.8 * 2.6 * 1.2

VLF4012AT-4R7M1R1

0.14

1.1

3.7 * 3.5 * 1.2

MLP2520S4R7L

0.11

1.1

2.5 * 2 * 0.85

MURATA

LQH2MC-2 series

0.46

0.5

2.0 * 1.6 * 0.9

LQM31P_N4R7M00

0.3

0.7

3.2 * 1.6 * 0.85

LQM2HP_GO series

0.11

1.1

2.5 * 2 * 0.9

Irms: 30% decrease of initial value

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