QMTECH XILINX SPARTAN-7 - QM_Spartan-7 3.3 V Power Supply

QM_Spartan-7 Development Board User Manual V01
2.2.1 QM_Spartan-7 3.3V Power Supply
The development board’s 3.3V power supply is using high efficiency DC/DC chip MP2359 provided by MPS
Inc. The MP2359 supports wide voltage input range from 4.5V to 24V. In normal use case, 5V DC power
supply is suggested to be applied on the board. Below image shows the MP2359 hardware design:
Figure 2-8. MP2359 Hardware Design
Figure 2-9. 1.0V Core Voltage DC/DC
R1
100K
R3
33K
C5
100nF
U2
MP2359
BST
1
GND
2
FB
3
EN
4
VIN
5
SW
6
C2
4.7uF
3V3
C4
4.7uF
C3
4.7uF
USB_5V
C1 10nF
R2 100K
L1
4.7uH
D1
IN5819
1
2
C17
4.7uF
L3 4.7uH
1V0
C13
4.7uF
3V3
U5
NCP1529
GND
2
FB
5
EN
1
VIN
4
SW
3
R7
100K
C11
22pF
R8
150K
M
1V
C12
4.7uF
C16
4.7uF
C8
4.7uF
1V8
L2 4.7uH
3V3
C9
4.7uF
U4
NCP1529
GND
2
FB
5
EN
1
VIN
4
SW
3
R5
53.6K
C7
22pF
M
1V8
R6
27K