Schematics

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
POWER SUPPLY FOR PERIPHERALS
Output Current: Max 600mA
PR_EN
VDD_3V3_SYS
VDD_5V_SYS
VDD_5V_SYSVDD_5V_SYS
VDD_2V5_ETH
VDD_1V2_ETH
VDD_3V3_SYS
VDD_1V8_SYS
Title:
Size: Document Number: Rev:
Date: Sheet: ofDraw By:
https://www.seeedstudio.com
V1A3
5 25Wednesday, December 16, 2020<Drawing>
01_Power Supply
013_DC/DC FOR PERIPHERALS
Title:
Size: Document Number: Rev:
Date: Sheet: ofDraw By:
https://www.seeedstudio.com
V1A3
5 25Wednesday, December 16, 2020<Drawing>
01_Power Supply
013_DC/DC FOR PERIPHERALS
Title:
Size: Document Number: Rev:
Date: Sheet: ofDraw By:
https://www.seeedstudio.com
V1A3
5 25Wednesday, December 16, 2020<Drawing>
01_Power Supply
013_DC/DC FOR PERIPHERALS
AP2112K-1.8TRG1
U18
sot23-5
IN
1
GND
2
SHDN
3
FB
4
OUT
5
R102
47K
1%
R0402
TP38
C97
22uF
C0603
10V
R100
150K
1%
R0402
U15
ETA3410D2I-T
DFN8G_0D5_2X2MM_3410
EN
5
MODE
6
AVIN
7
PVIN
8
SW
2
FB
4
AGND
1
PGND
3
GPAD
9
C81
10uF
C0603
10V
C107
22pF
C0402
50V
FB2 120R
2A
0603
TP34
Test Point
TP30C_SMD
R151
DNP
1%
R0402
DNP
U13
ETA3410D2I-T
DFN8G_0D5_2X2MM_3410
EN
5
MODE
6
AVIN
7
PVIN
8
SW
2
FB
4
AGND
1
PGND
3
GPAD
9
C157
10uF
C0603
10V
TP32
Test Point
TP30C_SMD
C96
22pF
C0402
50V
L15 1uH
2.05A
2.0x1.6 mm
U12
ETA3410D2I-T
DFN8G_0D5_2X2MM_3410
EN
5
MODE
6
AVIN
7
PVIN
8
SW
2
FB
4
AGND
1
PGND
3
GPAD
9
FB1 120R
2A
0603
R97
44.2k
1%
R0402
C82
22pF
C0402
50V
C155
10uF
C0603
10V
C158
100nF
C0402
16V
C106
10uF
C0603
10V
FB3 120R
2A
0603
L13 1uH
2.05A
2.0x1.6 mm
C83
22uF
C0603
10V
R112
150K
1%
R0402
C156
100nF
C0402
16V
C108
22uF
C0603
10V
TP33
Test Point
TP30C_SMD
R110
150K
1%
R0402
C84
10uF
C0603
10V
R150 10K
5%R0402
R152
DNP
1%
R0402
DNP
R95
200K
1%
R0402
TP31
Test Point
TP30C_SMDL12 1uH
2.05A
2.0x1.6 mm
3V3_SW
3V3_FB
2V5_EN 2V5_SW
2V5_FB
1V2_EN 1V2_SW
1V2_FB
3V3_EN
LDO_FB