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Figure 5-3. Power Domains
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
For DDR2
For MPU
Switching Power lines
(Super)-Capacitor
energy storage
POWER SUPPLY
VDDBU Power Supply
Fixed output 1V8, 3v3,
Fixed output 1V2
RevB
EN_1
EN_VDD_1V25
STARTB
STARTB
FPWM#
FPWM#
EN_1
EN_VDD_1V25
VDDHSIC
VDD_3V3
VDD_1V25
VDDCORE
VDDIOP0
VDDIOP2
VDDIOP1
VDDPLLA
VDDUTMIC
VDDIODDR
VDDAUDIOPLL
VDDANA
VDDOSC
VDDUTMII
VDDISC
VDD_1V8
VDD_MAIN_5V
VDDBU
GND_POWER
GND_POWER
VDD_3V3
VDD_MAIN_5V
GND_POWER
GND_POWER
VDD_3V3
VDD_1V8
VDD_MAIN_5V
VDD_1V8
VDD_1V25
VDD_MAIN_5V
GND_POWER
GND_POWER
GND_POWER
VDD_MAIN_5V
VDD_3V3
VDDSDHC1V8
VDD_3V3
GND_POWER
VDDFUSE
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
VDD_MAIN_5V
GND_POWER
VDD_3V3
GND_POWER
GND_POWER
VDD_3V3
VBUS_USBA
VBUS_JLINK
GND_POWER
GND_POWER
GND_POWER
GND_POWER
NRST
8,11,12,13
SHDN
8
EN_1
12
REV
DATE
MODIF.
DES.
DATE
VER.
SCALE
1/1
REV.
SHEET
INIT EDIT
A
A
RevA
3
13
B
XX-XXX-XX
ZhouB
XXX
03) Power domains
06-JAN-17
SAMA5D2-PTC-EK
XXX XX-XXX-XX
ZhouB 07-MAR-17
03/10/17
THR
X
X
-
X
X
X
-
X
X
X
X
X
B
REV
DATE
MODIF.
DES.
DATE
VER.
SCALE
1/1
REV.
SHEET
INIT EDIT
A
A
RevA
3
13
B
XX-XXX-XX
ZhouB
XXX
03) Power domains
06-JAN-17
SAMA5D2-PTC-EK
XXX XX-XXX-XX
ZhouB 07-MAR-17
03/10/17
THR
X
X
-
X
X
X
-
X
X
X
X
X
B
REV
DATE
MODIF.
DES.
DATE
VER.
SCALE
1/1
REV.
SHEET
INIT EDIT
A
A
RevA
3
13
B
XX-XXX-XX
ZhouB
XXX
03) Power domains
06-JAN-17
SAMA5D2-PTC-EK
XXX XX-XXX-XX
ZhouB 07-MAR-17
03/10/17
THR
X
X
-
X
X
X
-
X
X
X
X
X
B
L3
BLM18PG181SN1D
R0603
1
2
R16
2R2
R0603
C18
100nF
C0402
R15
2R2
R0603
R17
0R
R0603
L7
MLZ1608N100L
L0603
L11
BLM18PG181SN1D
R0603
1
2
L10
BLM18PG181SN1D
R0603
1
2
C4
10uF
C0603
U2
MIC2230-GSYML
MLF3x3mm
AVIN
3
EN1
11
FPWM#
7
SW1
8
OUT1
12
AGND
5
PGND
6
OUT2
1
SW2
4
PGOOD
10
EN2
2
VIN
9
E
P
A
D
13
R249
4.7K
R0402
JP5
Header 1X2
1 2
R13
39K
R0402
C6
10uF
C0603
R18
0R
R0603
U1A
DMP2160UFD
1
2
6
7
L4
BLM18PG181SN1D
R0603
1
2
R3
100K
R0402
R251
10K
R0402
R12
220K
R0402
JP6
Header 1X2
1 2
C1
100nF
C0402
C10
390pF
C0402
U4A
DMP2160UFD
1
2
6
7
C7
100nF
C0402
L2
LQH43CN2R2M03L
L1812
R5
100K
R0402
R6
DNP
R0402
C3
10uF
C0603
R248
20K
R0402
+
C17
0.2F/3.3V
c117x68
R10
DNP
R0402
R11
100K
R0402
L14
BLM18PG181SN1D
R0603
1
2
C13
4.7nF
C0402
U1B
DMP2160UFD
4
5
3
8
R250
3.3K
R0402
L1
LQH43CN2R2M03L
L1812
L9
MLZ1608N100L
L0603
C5
1uF
C0603
D2
PMEG6010CEGWX
sod123
JP1
Header 1X2
1 2
JP4
Header 1X2
1 2
C12
100nF
C0402
L13
BLM18PG181SN1D
R0603
1
2
Q1
BSS138
SOT23_123
1
3
2
R14
100R-1%
R0402
L6
BLM18PG181SN1D
R0603
1
2
R1
10K
R0402
U4B
DMP2160UFD
4
5
3
8
R4
10K
R0402
C9
1uF
C0603
R2
100K
R0402
D1
PMEG6010CEGWX
sod123
Q2
BSS138
SOT23_123
1
3
2
C16
1uF
C0603
L8
MLZ1608N100L
L0603
R19
2R2
R0603
JPR1
Jumper
U5
MIC5366-2.5YMT
MLF1x1mm
VIN
4
GND
2
VOUT
1
EN
3
E
P
A
D
5
C8
100nF
C0402
L5
BLM18PG181SN1D
R0603
1
2
D3
BAT54C
SOT23_123
3
1
2
L12
BLM18PG181SN1D
R0603
1
2
R9
100K
R0402
C11
10uF
C0603
Q3
BSS138
SOT23_123
1
3
2
U3
MIC47053YMT
BIAS
1
GND
2
IN1
3
IN2
4
ADJ
6
OUT
5
E
P
A
D
9
PGOOD
7
EN
8
Q4
BC847C
SOT-23
1
3
2
C2
100nF
C0402
C15
1uF
C0603
JP3
Header 1X2
1 2
R8
100K
R0402
JP2
Header 1X2
1 2
C14
2.2uF
C0603
SAMA5D2-PTC-EK
Appendix A. Schematics and Layouts
©
2017 Microchip Technology Inc.
DS50002709A-page 51