12-8 Schematics, Board Layouts, and Parts Lists: Transceiver (RF) Board

November 11, 2004 6881094C12-A
Figure 12-7. NUE7337_ DC Power
88Z01
E4
2A
32V
F901
1
VIN
5
VOUT
1uF
C8
LP3985
U2
LP3985IM5X-3.0
4
BYPASS
2
GND
3
VEN
D3
Q1
MGSF1P02LT1
1uF
C14
C10
.01uF
C9
1uF
1uF
C2
88Z01
E1
C21
10uF
C1
.01uF
10uF
C70
L5
100uH
D1
MBRM140T3
0
R2
V5A
C5
10uF
INPUT
4
NC
2
OUTPUT
5
SENSE
6
SHUTDOWN
8
LP2989IMMX-5.0
U1
LP2989
BYPASS
1
ERROR
7
GND
3
MBRM140T3
D2
R1
100K
Q2
47K
47K
DTC144EKA
.01uF
C7
1uF
C6
C13
1uF
L1
6.8uH
2
3
1
NC 20V
VR1
VEN
VIN
1
VOUT
5
C11
1uF
LP3985IM5X-3.0
U3
LP3985
BYPASS
4
GND
2
3
E6
BK1005HM471 L2
NC
BK1005HM471
E5
C3
100uH
.01uF
2.2uFmin.
10uF
C4
V3A
V3DVSW1
ERR
V5A
BATT
RAWB+
FB+
XB+
SB+

MAEPF-27940-O