National Semiconductor LM5072 Manual - page 2
4.0 Schematic
0
12Vout
GND
3
1
2
12V AUX
12V AUX
24V AUX Input Port
24V AUX Domination Option
ECJ4YB1E226M
SMA
74456115
100V
0805
EEEFK1V331P
DO1813-181ML
SMA
12V AUX Input Port
SMA
DPAK
DPAK
1206
1210
1210
1210
1210
1206
1206
1206
1206
1206
1206
0805
SO-123
SO-123
0805
0805
1812
1206
0805
80V
100V
Port
R25
5.11k
R25
5.11k
C13
0.047uF
C13
0.047uF
U4
SFH6156-2
U4
SFH6156-2
1
2
4
3
R22
15.8k
R22
15.8k
R10
100ohm
R10
100ohm
-
+
BR2
CBRHD-01
-
+
BR2
CBRHD-01
1
4
3
2
D2
CMSH3-20MA
D2
CMSH3-20MA
R17
100K
R17
100K
C19
NI
C19
NI
C18
0.047uF
C18
0.047uF
C1
4.7uF/100V
C1
4.7uF/100V
C10
22uF
C10
22uF
R29
NI
R29
NI
C9
330uF/35V
C9
330uF/35V
C12
2200pF/2kV
C12
2200pF/2kV
C11
2.2uF/25V
C11
2.2uF/25V
R27
10k
R27
10k
C8
22uF/25V
C8
22uF/25V
R18
20k
R18
20k
C2
47uF
C2
47uF
R26
5.11K
R26
5.11K
J1J1
1
2
C5
1000pF
C5
1000pF
-
+
BR1
CBRHD-01
-
+
BR1
CBRHD-01
1
4
3
2
R1
24.9K
R1
24.9K
R13
0.33
R13
0.33
C17
0.047uF
C17
0.047uF
J2J2
1
2
C15
NI
C15
NI
R2
20K
R2
20K
R12
0.33
R12
0.33
R23
21.5k
R23
21.5k
Q3
BC817-16
Q3
BC817-16
C3
4.7uF/100V
C3
4.7uF/100V
D1
CMSH3-60M
D1
CMSH3-60M
J3
PoE
J3
PoE
1
2
3
4
5
6
7
8
R24 680ohm
R24 680ohm
R6
140k
R6
140k
C6
22uF
C6
22uF
R19
NI
R19
NI
U1
LM5072
U1
LM5072
OUT
9
nPGOOD
11
CS
12
VIN
3
SS
2
RT
1
COMP
15
ARTN
16
ICL_FAUX
5
FB
14
DCCL
6
RTN
8
VCC
10
VEE
7
RCLASS
4
RAUX
13
EP
D5
CMMR1F-02
D5
CMMR1F-02
R8
33ohm
R8
33ohm
R11
0.33
R11
0.33
R20
10k
R20
10k
Q2
BCX53
Q2
BCX53
R4
10ohm
R4
10ohm
C27
150uF/16V
C27
150uF/16V
L1
15uH
L1
15uH
1
2
Q1
SUD25N15
Q1
SUD25N15
U3
LM431
U3
LM431
D4
CMMR1U-02
D4
CMMR1U-02
R3
20k
R3
20k
R7
3.32K
R7
3.32K
R15
845ohm
R15
845ohm
D8
SMAJ58
D8
SMAJ58
C21
0.047uF
C21
0.047uF
C16
4700pF
C16
4700pF
R21
33k
R21
33k
C7
22uF/25V
C7
22uF/25V
D6
LED
D6
LED
C4
4700pF/250V
C4
4700pF/250V
U2
SFH6156-2
U2
SFH6156-2
1
2
4
3
D7
CMMR1F-02
D7
CMMR1F-02
R5
4.99k
R5
4.99k
R28
0
R28
0
R16
18.7K
R16
18.7K
T1
FA2900
T1
FA2900
1,2
10,11,12
3,4
7,8,9
5
6
R14
2.49k
R14
2.49k
C14
1000pF
C14
1000pF
C20
0.47uF
C20
0.47uF
R9
2.2ohm
R9
2.2ohm
L2
0.18uH
L2
0.18uH
1
2
D3
CSHD6-60C
D3
CSHD6-60C
schematic
FIGURE 1. Schematic
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2
LM5072