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Figure 3-4. Board Power Management
EN_1
EN_VDD_1V25
STARTB
STARTB
FPWM#
FPWM#
EN_1
EN_VDD_1V25
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
VDD_MAIN_5V
GND_POWER
VDD_3V3
GND_POWER
GND_POWER
VDD_3V3
GND_POWER
GND_POWER
GND_POWER
GND_POWER
SHDN
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
1
3
R249
4.7K
R0402
R13
39K
R0402
C6
10uF
C0603
R3
100K
R0402
R251
10K
R0402
R12
220K
R0402
C10
390pF
C0402
C7
100nF
C0402
L2
LQH43CN2R2M03L
L1812
C3
10uF
C0603
R248
20K
R0402
R10
DNP
R0402
R11
100K
R0402
C13
4.7nF
C0402
R250
3.3K
R0402
L1
LQH43CN2R2M03L
L1812
C5
1uF
C0603
Q1
BSS138
SOT23_123
1
3
2
R4
10K
R0402
C9
1uF
C0603
D1
PMEG6010CEGWX
sod123
Q2
BSS138
SOT23_123
1
3
2
C8
100nF
C0402
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
R8
100K
R0402
C14
2.2uF
C0603
NRST
3.2.2.5
Supply Group Configuration
The main regulators provide all power supplies required by the SAMA5D2 device:
•
1.25V VDDCORE, VDDPLLA, VDDUTMIC, VDDHSIC
•
1.8V VDDIODDR, VDDSDHC1V8
•
2.5V VDDFUSE
•
3.3V VDDIOP0, VDDIOP1, VDDIOP2, VDDISC
•
3.3V VDDOSC, VDDUTMI, VDDANA, VDDAUDIOPLL
•
3.3V VDDBU
SAMA5D2-PTC-EK
Board Components
©
2017 Microchip Technology Inc.
DS50002709A-page 11