Microchip Technology EVB-USB7206, User Manual

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FIGURE A-6: EVB-USB7206 USB C DOWNSTREAM 1
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EVB-USB7206
9/12/2019 3:28:15 PM
11048_7-Power-Regulators.SchDoc
Project Title
Sch #: Date:
File:
Revision: Sheet
Designed with
Drawn By:
Connor Chilton
Sheet Title
Power Regulators
Engineer:
Connor Chilton
03-11048
1.0 Size
Tabloid
UNG-8190
PartNumber: Variant: [No Variations]
Altium.com
Fiducials
Mounting Holes
12V L5V
12VDC to 5VDC
Change Rfb2 to change voltage:
2.6k = 5.25V
2.7k = 5V
2.9k = 4.75V
Rfb2 = (0.6 * Rfb1) / (Vout - 0.6)
Power Regulators
10k
R58
5V 3V3
1k
R64
"3V3"
3V3 @ 500mA
10uF
C72
12k
R65
FB3V3
10uF
C70
5VDC to 3.3VDC
3V3
GND
3V3 5V
86.6k
R63
MH1
FID1 FID3 FID2
FID5 FID6 FID4
MH4 MH2 MH3
5VDC to VCORE
VCORE
5V @ 15A
100k
R38
20k
1%
R33
750R R34 680pF C29
5V
33pF C27
3900pF C26 8.2k R31
100uF
C59
100uF
C22
0R
R35
0R R39
140k
R24
0.33uF C34
4
1,2,3
5,6,7,8
MCP87022
Q1
12V
5V
100uF
C23
L5V
FB5V
EARTH_DC
330R R2
5VL
PG5V
"5V"
20R
R22
2.2k
R62
0.1uF C7
0.1uF
C20
0.1uF
C30
0.1uF
C68
Rfb2
Rfb1
12V
0.1uF
C86
0.1uF
C85
0.1uF
C76
VCORE
10k
R82
10k
R72
3V3
LVCORE
FBVCORE
470pF
C77
22uF
C87
2.2uF
C84
22uF
C75
5V
"VCORE"
3V3
LVCORE
1.1V @ 2A
EARTH_DC
1
3
2
MMBT3904
Q3
500R
R101
0.33uF
DNP
C31
0.1uF
C66
0R
DNP
R37
4
1,2,3
5,6,7,8
MCP87050
Q2
VIN
4
SHDN
1
+VCC
6
PWRGD
5
EP
11
FB
2
COMP
3
LDRV
7
BOOT
8
PHASE
9
HDRV
10
MCP19035
U8
SS
6
FB
4
EN
2
SNS
3
VIN
9
SS
FB
EN
SNS
VIN II
AGND
7
PG
5
EP
11
PGND
10
SW
1
SVIN
8
MIC23201
U14
47uF
C40
47uF
C25
47uF
C21
D4
J6
ON OFF
12VDC
2
3 1
SPDT
SW1
1k
R89
D12
D11
D10
SMBJP6KE6.8
D7
2.49k = 5.4V
2.49k
0603
1%
R36
USB 2.0 calls for VBUS range between 4.75V and 5.25V. However, some devices will not charge batteries with VBUS less than 5.25V.
4.7uF
C32
1.5uH L2
GND (TAB)
6
VIN
2
VOUT
4
GND
3
SHDN
1
ADJ
5
MCP1825/ADJ
U13
2
1
TERMINAL 1X2
J5
2uH
L1
Blue
TP4
Red
DNP
TP5
Red
DNP
TP7
Black
TP10
1
SHLD
0
2
POWER 2.5mm
J4
Orange
TP11
Yellow
TP12
DNP
TP8
10k
R77
14.7K
R25
12VDC
12VDC
Rubber Pad Cyl D7.9H5.3
PAD1 PAD2 PAD3 PAD4
12k
R76