Microchip Technology ATSAMA5D2-ICP User Manual page 12

Figure 3-5. Board Power Management
VDD_MAIN_5V
R72
100k
0402
1%
3
Q6
1 BSS138
PIOBU7
2
PC31
R6
SHDN
GND
NSTART
VDD_MAIN_5V
C2
0.1uF
16V DNP
0402
GND
3V3 VDDBU
DNP
R1 R2 R256
10k 10k 10k
GND
PB18
NRST
WAKE_UP
PC28_MCP16502
PC29_MCP16502
VDD_MAIN_5V
DNP
DNP
VDD_MAIN_5V GND
C3
2.2uF
10V
0402
GND
The MCP16502 is a Fast mode Plus device, supporting data transfers at up to 1 Mbit/s as described in the I
specification. The MCP16502 is a slave-only device without clock stretching capability. The MCP16502 assumes that
2
the I C logic levels on the bus are generated by a device operating from a nominal supply voltage of 3.3V (with ±10%
tolerance). This is typically the I/O voltage generated by Buck1 (VDDIO). Therefore, VIH and VIL are not related to
the SVIN voltage value. The SDA and SCL lines should not be pulled up to the MCP16502 SVIN voltage, but to the
2
I C master interface supply voltage (3.3V nominal). The MCP16502 I
OFF state, as long as the SVIN pin is powered. In the OFF state, the VDDIO voltage from Buck1 is turned off and
2
therefore the I C pullup rail must be provided externally.
For more information, refer to the PMIC MCP16502 data sheet.
©
2020 Microchip Technology Inc.
U2
22 10
LPM PVIN1
23
HPM
1k 8 12
PWRHLD PGND1
GND
L1
24 11
nSTRT SW1
9 VLS3012HBX-1R5M
OUT1
R7
15
PVIN2
0R
0402
17
SELV2
13
PGND2
R8
0R
0402 GND
L2
14
SW2
16 VLS3012HBX-1R5M
OUT2
1
nINTO
26
PVIN3
2
nRSTO
7
nSTRTO
28
PGND3
5
SDA
GND
L3
6 27
SCL SW3
25 VLS3012HBX-1R5M
OUT3
31
PVIN4
R9
0R
0402
18 29
SELVL1 PGND4
R10
0R GND
L4
0402 30
SW4
32 VLS3012HBX-1R5M
OUT4
4 20
SVIN LVIN
19
LOUT1
3 21
SGND LOUT2
33 C8
EP
2.2uF
MCP16502AA
10V
0402
R15
1 2 0.01R
1% 1206
SENSE1_P SENSE1_N
VDD_MAIN_5V
C11
4.7uF
10V
0402
C12
22uF
10V 3V3
R16
1.5uH 0805 1 2 0.01R
1% 1206
SENSE2_P SENSE2_N
VDD_MAIN_5V
C13
4.7uF
10V
0402
C14
22uF
10V
1V35
R17
1.5uH 0805 1 2 0.01R
1% 1206
SENSE4_P SENSE4_N
VDD_MAIN_5V
C15
4.7uF
10V
0402
C16
22uF
10V 1V25
R18
1.5uH 0805 1 2 0.01R
1% 1206
SENSE3_P SENSE3_N
VDD_MAIN_5V
R19 L5
2.2R
C17
4.7uF
FB1
10V 180R
0402
C18
FB2
180R
22uF
J3
10V Vout4
0805
1.5uH
DNP
HDR-2.54 Male 1x2
VDD_MAIN_5V GND
VDDFUSE
VDD_LED
C9 C10
2.2uF 2.2uF
10V 10V
0402 0402
GND
2
C interface is always accessible, even in the
User Guide
ATSAMA5D2-ICP
Board Components
VDDIOP0
FB3
180R
VDDIOP1
FB4
180R
VDDIOP2
FB5 180R
VDDISC
FB6
180R
VDDOSC
R20 L6
2.2R 10uH
VDDUTMII
FB7
180R
VDDANA
FB8
180R
VDDAUDIOPLL
R21 L7
2.2R 10uH
VDDSDHC
FB9
180R
VDDIODDR
C25
R25
0.1uF
16V 2.2k
0402 1%
C23
4.7uF DDR_REF
10V
C26
0402
R26
0.1uF
16V 2.2k
0402 1%
VDDCORE
VDDPLLA GND
10uH
VDDUTMIC
VDDHSIC
2
C Bus
DS60001592A-page 12