Microchip Technology EVB-USB4x12 User Manual page 31

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