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C10,C11,C12,C13,C14,C15,
C16,C17,C18,C19,C20,C21
C22,C50
C24,C26
DC1
J7,J8
L1,L2,L3,L4,L5,L6
R5, R16
R28,R25,R32
R10,R11,R12
R14,R15
R17,R18
T1,T2
11
Layout description
The following sections describe how the layout guidelines provided in the ROA
128 6016. Technical Specification have been applied to the reference board
layout. The purpose is to give the reader a better understanding of the guidelines
by examples. Please note that every system is different and that there may well
be considerations to make which are not provided here, depending on the system
requirements and limitations set in the end application
11.1
PCB stack-up summary
Layer
Top layer
28701-ROA1286016 Rev A
12
2
2
1
2
6
2
R4
1
R6
1
R8
1
R20
1
R21
1
R30
1
3
R23
1
R31
1
3
2
2
2
D1
1
Description
VIN, VOUT, PGND planes
Component footprints, signal traces
2021/4/25
Test Board User Guide BMR4742001
100uF 10% 1210 6.3V X7S,CAPACITOR
100nF 10% 0805 25V X7R,CAPACITOR
100nF 10% 0603 25V X7R,CAPACITOR
LED, green
PMBus connector
Ferrite Bead
0ohm 0603 ,RESISTOR, -55C~155C
68.1kohm 1% 0603 0.1W,RESISTOR, -55C~155C
6.65kohm 1% 0603 0.1W,RESISTOR, -55C~155C
115kohm 1% 0603 0.1W,RESISTOR, -55C~155C
6.34kohm 1% 0603 0.1W,RESISTOR, -55C~155C
37.4kohm 1% 0603 0.1W,RESISTOR, -55C~155C
46.4kohm 1% 0603 0.1W,RESISTOR, -55C~155C
64.9kohm 1% 0603 0.1W,RESISTOR, -55C~155C
162kohm 1% 0603 0.1W,RESISTOR, -55C~155C
412kohm 1% 0603 0.1W,RESISTOR, -55C~155C
10kohm 1% 0603 0.1W,RESISTOR, -55C~155C
180ohm 1% 0603 0.1W,RESISTOR, -55C~155C
100kohm 1% 0603 0.1W,RESISTOR, -55C~155C
nfet_d3-g1-s2, BSS123, sot23
VS-43CTQ100SPBF,100V,2x20A,
D2PAK(TO-263AB)
Thickness
2 oz
12 (20)
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