STMicroelectronics 32L4R9IDISCOVERY - Page 56

Schematics UM2271 56/78 DocID030906 Rev 2
Figure 21. 32L4R9IDISCOVERY power
214
Power
MB1311 C
28/08/2017
Title:
Size: Reference:
Date: Sheet: of
A4
Revision:
STM32L4R9I-DISCOProject:
E5V
E5V
U5V_ST_LINK
R37
820
VIN
10uF
C39
ARDUINO power pin
Vin
3
Vout
2
Tab
4
GND
1
U15
LD1117S50TR
+3V3
L5
2.2uH
+1V8
3
2
1
JP7
VDD
+5V
ARD_5V
JP9
U5V
1 2
3 4
5 6
7 8
109
JP4
Header M Straight 5x2H
5V_USB_CHARGER
10uF
C36
1 2
PWR
Green
LD8
3
2
1
JP5
+5V
4.7uF
C42
10uF
C38
SW
A1
VIN
A2
EN
B1
GND
B2
VSEL1
C1
VOS
C2
VSEL2
D1
VSEL3
D2
U14
TPS62743
SW
A1
VIN
A2
EN
B1
GND
B2
VSEL1
C1
VOS
C2
VSEL2
D1
VSEL3
D2
U9
TPS62743
L4
2.2uH
+5V
10uF
C30
+5V
4.7uF
C33
12
D1
ESDA7P60-1U1M