ON Semiconductor RSL10 - Power Supply Schematic for QFN Board

ON Semiconductor
www.onsemi.com
29
Figure 14. Power Supply Schematic
Title
Number RevisionSize
A
VBUS
4.7μF C43 DNP
C40 4.7μF
C42 1uF
C41 1uF
Vin
1
GND
2
EN
3
N/C
4
Vout
5
U3 NCP551SN32T1G
VBAT_DUT
R32 DNP
V3.3
VDD_AT
1 2 3 4 5 6
P4
VL
1
I/O VL1
2
I/O VL2
3
I/O VL3
4
I/O VL4
5
NC
6
GND
7
I/O Vcc4
8
NC
9
I/O Vcc3
10
I/O Vcc2
11
I/O Vcc1
12
Vcc
13
EN
14
U4 NLSX5014
VDDO
C46 1uF
C47 10nF
R36 10k
C44 10nF
C45 1uF
V3.3
1 3 5
2 4 6
78
P6 2x4 Header
R35 0
R34 0
GND
VEXT
V3.3
VDDO
VDDO
R40 10k
20
14
IO1_3
13
IO1_2
12
IO1_0
10
IO1_5
15
IO0_7
8
IO0_6
7
IO0_5
6
IO0_4
5
IO0_3
4
IO0_2
3
IO0_1
2
IO0_0
1
INT
22
SCL
19
SDA
20
AD0
18
AD1
23
AD2
24
VSS
9
EP
25
PCA9655
IO1_6
16
IO1_7
17
VDD
21
U5 PCA9655
R51 10k
R41 10k
R42 10k
R43 10k
R44 DNP
V3.3
R45 0 R46 DNP
R47 0
R48 DNP R49 DNP R50 DNP R52
0
R53
0
SCL SDA DIO[7..0]
DIO7 DIO6
DIO7
DIO8
DIO6 DIO9
INT0
SPI_CS
DIO9 DIO8
DIO[15..8]
VIN3.3V
5V
RSL10 QFN EVB
V1.3
V3.3
C48 100nF
1
2
3
J5 BAT-HLD-012
2
1
2
1
3
P8
2
1
2
1
3
P9
VDD_AT Select VDDO Select
Optional Level Shifter
2 1
2
1
P5
2
1
2
1
P3
2 1
2
1
3
P7
2 1
2
1
3
P10
VBAT VBAT Select
3.3V Select
Power Select
SDA
SCL
INT0
SPI_CS
POWER SUPPLY CONFIGURATION HEADERS P4, P7, P10 ARDUINO ORION POWERED VIN3.3V: P4 (no jumper), P7(1-2), P10(1-2) STAND ALONE USB POWERED: P4(1-2), P7(2-3), P10(1-2) STAND ALONE Vext POWERED: P4(3-4), P7(2-3), P10(1-2) STAND ALONE USB and Vext POWERED: P4(1-2), (5-6), P7(2-3), P10(2-3)
VDDO is the digital IO ring supply
(p
rovided externall
y)
. Ran
g
e : 1.1V - 3.3V