Schematics - Microchip Technology Multimedia Expansion Board II User Manual

A.2

SCHEMATICS

FIGURE A-5: POWER SUPPLY
+9V
1
D1
3
2
J3
© 2013-2014 Microchip Technology Inc.
Board Layout and Schematics
U4
+9V
2
VIN
3
VIN
C56 C57
11
VIN
16V 16V
10uF 10uF
9
EN
6
NC
7
NC
17
EP
GND
3V Power Supply
+5V
U5
1
2
C58 C1
4
16V 0.1uF
10uF
MCP1826S-3302E/DB
GND
C55
0.022uF
L1
1
SW
LPS4018-472M
12
SW
4.7uH
13
SW
16
SW
5
FB
R17
8
PG
10K
GND
+3.3V
3
VIN VOUT
GND
C49
TAB(GND)
2.2uF
10V
GND
+5V
R1
C66 C67
0R
22uF 22uF
R35
DNP
GND
GND
GND
DS70005148B-page 35