1.1V
REGULATOR
3.3V
REGULATOR
DOWNSTREAM PORT POWER SWITCHES
5V INPUT
SILKSCREEN: TIP +5v
DN1_VBUS
1P1V_FB
1P1V_SS
PWRON1_BATEN1
PWRON2_BATEN2
DN2_VBUS
PWRON3_BATEN3
DN3_VBUS
PWRON4_BATEN4
DN4_VBUS
BOARD_5V
BOARD_1P1V
BOARD_3P3V
BOARD_3P3V
BOARD_5V
BOARD_3P3V
BOARD_3P3V
BOARD_5V
BOARD_3P3V
BOARD_5V
BOARD_3P3V
BOARD_5V
BOARD_5V
DN1_VBUS
2
OVERCUR1Z_TDI
1
PWRON1_BATEN1
1
PWRON2_BATEN2
1
DN2_VBUS
2
OVERCUR2Z_TMS
1
PWRON3_BATEN3
1
DN3_VBUS
2
OVERCUR3Z_TCK
1
PWRON4_BATEN4
1
DN4_VBUS
2
R30
330
0402
C75
0.1uF
D4
LED Green 0805
R37
330
0402
R35
330
0402
D5
R26
10K
0402
C68
10uF
C67
10uF
D8
D7
C66
0.1uF
U8
TPS2001C
GND
1
IN
2
IN
3
EN
4
OUT
7
OUT
8
OUT
6
PAD
9
FLT
5
R32
NOPOP
U10
TPS2001C
GND
1
IN
2
IN
3
EN
4
OUT
7
OUT
8
OUT
6
PAD
9
FLT
5
+
C79
150uF
+
C76
150uF
R31
330
0402
C73
10uF
C80
0.1uF
T
S
J6
2.1mm x 5.5mm
1
2
3
C77
0.1uF
+
C70
150uF
R34
4.99K
0402
D6
SW3
U7
TPS2001C
GND
1
IN
2
IN
3
EN
4
OUT
7
OUT
8
OUT
6
PAD
9
FLT
5
R36
10K
0402
R29
10K
0402
+
C71
150uF
C69
0.1uF
U4
TPS7A4533
GND
6
IN
2
GND
3
SENSE
5
OUT
4
SHDN/
1
C72
0.1uF
C74
10uF
R33
1.87K
0402
U9
TPS2001C
GND
1
IN
2
IN
3
EN
4
OUT
7
OUT
8
OUT
6
PAD
9
FLT
5
R27
10K
0402
C81
0.1uF
C78
0.1uF
U6
TPS74801RGW
IN1
5
GN
D
12
FB
16
OUT1
1
EN
11
IN2
6
IN3
7
IN4
8
GN
D
21
OUT2
18
OUT3
19
OUT4
20
NC1
2
NC2
3
NC3
4
NC4
13
NC5
14
NC6
17
S
S
15
PG
9
BIAS
10
C82
10uF
R28
330
0402
C61
10uF
Copyright © 2017, Texas Instruments Incorporated
Appendix B
11
SLLU261A – April 2017 – Revised February 2019
Copyright © 2017–2019, Texas Instruments Incorporated
TUSB8044RGC REVD EVM Schematics
Figure 4. Power