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AN42 APPLICATION NOTE
6
Figure 4. Synchronous DC-DC Converter Application Schematic Using RC5040
Figure 5. Non-Synchronous DC-DC Converter Application Schematic Using RC5042
VO
GND
VID3
VID2
VID1
VID0
8
7
6
5
4
3
2
1
9
1011
12
13
14
15
16
17
18
19
20
VCC
PWRGD
RC5040
VCC
VCC
OUTEN
R5
10K
C10
0.1µF
C11
0.22µF
R6
10K
R4
10K
10K
10K
10K
R3
R2
R1
C
EXT
39pF
C7
0.1µF
C6
4.7µF
DS1
1N5817
65-AP42-04
R7
10K
C1
1000µF
C2
C3
1000µF
1000µF
C5
0.1µF
DS2
1N5817
C12
1µF
L1
1.3µH
M1
2SK1388
M2
2SK1388
C8
C9
0.1µF
0.1µF
R
SENSE
8mΩ
1500µF
C13
L2
2.6µH
M3
2SK1388
VREF
C15
C14
1500µF
1500µF
C4
0.1µF
VO
GND
VID3
VID2
VID1
VID0
VCC
PWRGD
RC5042
VCC
65-AP42-05
VCC
C10
0.1µF
C11
0.22µF
R6
10K
R4
10K
10K
10K
10K
R3
R2
R1
C
EXT
39pF
C7
0.1µF
C6
4.7µF
DS1
MBR1545CT
R7
10K
1000µF
C1
C2
C3
1000µF 1000µF
C5
0.1µF
DS2
1N5817
C12
1µF
L1
1.3µH
M1
2SK1388
M2
2SK1388
C8
C9
0.1µF
0.1µF
R
SENSE
8mΩ
C14
1500µF
1500
µ
F
C13
8
7
6
5
4
3
2
1
9
10
11
12
13
14
15
16
VREF
C15
1500µF
L2
2.6µH
C4
0.1µF