+ 6V
SEALED
LEAD-
120kΩ
1.5kΩ
ACID
BATTERY
SOURCE FB
SPX385
1N457
FOR 5.5 V
400kΩ
100kΩ
8
+V IN
1
V OUT
LP2951
SENSE
2
3
SD
GND
4
MAIN V+
+
1µF
MEMORY V+
20kΩ
NI-CAD
BACKUP
BATTERY
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Rev G
LP2950-5 Low Dropout Linear Regulators
1
© 2008 Exar Corporation