Applications Information (continued)
+ 6V
SEALED
LEAD-ACID
120kΩ
BATTERY
SOURCE
1.5kΩ
FB
SPX385
1N457
FOR 5.5 V
400 kΩ
100k Ω
SPX2954
8
VIN
SPX2954
1
VOUT
2
3
SD
GND
4
MAIN V+
+
1μF
MEMORY V+
20kΩ
NI-CAD
BA CKUP
BATTERY
Figure 4. Low Battery Disconnect
Figure 5. Regulator with State of Charge Indicator
REV1A
11/15