EVB-USB5734 Datasheet, PDF (28/37 Pages) Microchip Technology – EVB-USB5734 Evaluation Board User’s Guide

FIGURE B-2:
EVB-USB5734 EVALUATION BOARD SCHEMATIC 2
12V In
J9
2.5 mm
1
3
C66
0.1uF
2
R59
20
5V25 Regulator, <6A
U3
12V_EXT
J6
Ext. 12V
2
4
1
VIN
VOUT
ENABLE TRIM
5
C46
3
6_Amp ^GND
DNP
10uF
25V
TP2
TP6
C39
R56
255 10uF
1%
5V
C37
0.1uF
Power
Regulation
& Reset
-RESET-
SW8
1
3
2
4
2 ^J11 1
Ext_Rst
R65
100K
2
C64 1.0nF
3V3
U10
4
R63
74LVC1G14 ^1K
"Reset"
D12
Red
3V3 Regulator, >200 mA
with PwrGood
5V
U2
FB4
MCP1725-ADJ_SOIC8
2A/0.05DCR
5V_REG_3V3
R13
EN3
47K
1
2
3
VIN1 ^500mA VOUT
VIN2
8
7
6 ^Shdn
ADJ ₅
Cdelay PWRGD
C36
C35
C48
4.7uF
1.0uF
1.0nF
R16 ^1% 150K
R15
21.0K
1%
3V3
R9
VDD33
ZERO
TP11
TP10
C45 C47 C49
4.7uF 0.1uF 1.0nF
RESETn p2
3V3
R28
1K
D5
Br_Grn
"3V3 Present"
1V2 Regulator, 1A
*Note: VDD12 should come up before VDD33.
FB3
2A/0.05DCR
C63
10uF
U1
5V_REG_1V2
2
4
R14
ZERO
EN12 1
VIN
VOUT
ENABLE TRIM
5
C32
3
3_Amp ^GND
DNP 0.1uF
1V2_REG
R33
1.91K
1%
R34
29.4K
1%
DNP
VDD12
R10
ZERO
C28 C27
TP12
TP8
10uF 0.1uF
Port Disable Strap Option
*Note: Pull up both DP and DM on a port to disable it.
(*1-2, Port Enabled, 2-3, Port Disabled)
3V3 ^R29
1K
SW1
Slide-Top
p2 USBDN_DM1
p2 USBDN_DP1
Port 1
"Port 1 Enabled"
D7
Br_Grn
3V3 ^R30
1K
SW2
Slide-Top
p2 USBDN_DM2
p2 USBDN_DP2
Port 2
"Port 2 Enabled"
D8
Br_Grn
3V3 ^R31
1K
SW3
Slide-Top
p2 USBDN_DM3
p2 USBDN_DP3
Port 3
"Port 3 Enabled"
D9
Br_Grn
3V3 ^R32
1K
SW4
Slide-Top
p2 USBDN_DM4
p2 USBDN_DP4
Port 4
"Port 4 Enabled"
D10 Br_Grn
LED_P
D6
DNP RED
TP15
FB1 DNP
3V3
2A/0.05DCR
1V2_REG ^{FB2 DNP}
2A/0.05DCR
VDD33 ^3V3
MT2
VDD12
TP14
MT1
FOOT1
FOOT3
500x250-Clear 500x250-Clear
FOOT2
FOOT4
500x250-Clear 500x250-Clear