MB39A112EVB-01
9. Component Selection Methods
Figure 1. Board Photograph
CH1
FET
Flyback diode
Inductor
Output smoothing condenser
GND
VIN
Q1
VD1
VO1
0
CTL1
R6
R1
OUT1
C1
Q4
Q5
3
4
1
6
2R0
C2
D1
L1
GND1
CTL2
CTL3
CH2
R4
0
FET
821
VCCO
R9
C8
C9
FB1
M1
20
C17
OUT2
1
Q2
R2
VD2
1
VO2
GND2
VO3
0
C16
VCC
Inductor
R10
512
821
Q6
3R3
C10
3
4
C4
VH
FB2
10
R14
Output smoothing condenser
11
FB3
D2
R18
L2
C3
CSCP
6
C15
OUT3
R13
CS2
CS3
Flyback diode
C14
R17
R16
Q3
R11
R3
0
VD3
R15
SGND
100
3
C6
CS L
1
2
3
4
D3
L3
C5
2
GND3
1
1
2
3
4
SW1
OFF
MCC
CS OPEN
FET
Inductor
Output smoothing condenser
Flyback diode
CH3
Document Number: 002-08322 Rev. *A
Page 15 of 23
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