Sc
he
m
ati
cs
20
19
M
icr
oc
hip
T
ec
hn
olo
gy
In
c.
D
S
50
00
28
89
A-p
ag
e 3
1
FIGURE B-4:
EVB-USB4X12 EVALUATION BOARD SCHEMATIC 4
1
1
2
2
3
3
4
4
5
5
6
6
D
D
C
C
B
B
A
A
Page Title:
Project Name:
Voltage Regulator
EVB-USB4x12
PN:
UNG_8184
Description:
Date:
Size:
Sheet
of
Rev
B
4
4
B0
7/16/2018
Designer:
Andrew Rogers
EVB-USB4x12- Evaluation Board
Designed with
Microchip Technology, Inc.
USB/Network Group - UNG
www.Microchip.com
Altium.com
Fiducials
Voltage Input Select
Voltage Regulator
10k
R40
5V
3V3
1k
R38
3V3
3V3 @ 500mA
10uF
C28
FB3V3
10uF
C29
5VDC to 3.3VDC
3V3
GND
3V3
5V
86.6k
1%
R41
FID1
FID2
FID3
FID4
FID5
FID6
0.1uF
C30
D5
VIN
0.1uF
C27
20R
R39
TP1
TP2
2
1
J6
GND (TAB)
6
VIN
2
VOUT
4
GND
3
SHDN
1
ADJ
5
MCP1825/ADJ
U8
12k
1%
R42
SMBJP6KE6.8
D4
VBUS_UP Can optionally supply power to the entire PCB.
If used, ensure that the VBUS source has sufficient current
capacity to power the PCB + all connected downstream devices.
1
2
3
4
HDR-2.54 Male 2x2
J7
VBUS_UP
3
