Datasheet

Figure 8 :
5V Electronic Shut-down Regulator
Figure 9 :
Digitally Selected Outputs
(R2 sets maximum V
o
)
Figure 10 : BatteryCharger (12V) Figure 11 : CurrentLimited 6V Charger
*R
S
sets output impedance of charger
Z
o
= R
S
(1 +
R
2
R
1
)
Use of R
S
allows low charging rates with fully charged battery.
* R3 sets peak current (0.6A for 1
Ω
).
** C1 recommended to filter out input transients.
LM117/217/317
6/11