Flex 1286016, User Manual

Page: 12 / 20

Test Board User Guide BMR4742001
28701-ROA1286016 Rev A 2021/4/25 12 (20)
C10,C11,C12,C13,C14,C15,
C16,C17,C18,C19,C20,C21 12
100uF 10% 1210 6.3V X7S,CAPACITOR
C22,C50 2
100nF 10% 0805 25V X7R,CAPACITOR
C24,C26 2
100nF 10% 0603 25V X7R,CAPACITOR
DC1 1
LED, green
J7,J8 2
PMB us connector
L1,L2,L3,L4,L5,L6 6
Ferrite Bead
R5, R16 2
0ohm 0603 ,RESISTOR, -55C~155C
R4 1
68.1kohm 1% 0603 0.1W,RESISTOR, -55C~155C
R6 1
6.65kohm 1% 0603 0.1W,RESISTOR, -55C~155C
R8 1
115kohm 1% 0603 0.1W,RESISTOR, -55C~155C
R20 1
6.34kohm 1% 0603 0.1W,RESISTOR, -55C~155C
R21 1
37.4kohm 1% 0603 0.1W,RESISTOR, -55C~155C
R30 1
46.4kohm 1% 0603 0.1W,RESISTOR, -55C~155C
R28,R25,R32 3
64.9kohm 1% 0603 0.1W,RESISTOR, -55C~155C
R23 1
162kohm 1% 0603 0.1W,RESISTOR, -55C~155C
R31 1
412kohm 1% 0603 0.1W,RESISTOR, -55C~155C
R10,R11,R12 3
10kohm 1% 0603 0.1W,RESISTOR, -55C~155C
R14,R15 2
180ohm 1% 0603 0.1W,RESISTOR, -55C~155C
R17,R18 2
100kohm 1% 0603 0.1W,RESISTOR, -55C~155C
T1,T2 2
nfet_d3-g1-s2, BSS123, sot23
D1 1
VS-43CTQ100SPBF,100V,2x20A,
D2PAK(TO-263AB)
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 Description Thickness
Top layer VIN, VOUT, PGND planes
Component footprints, signal traces
2 oz