Datasheet

DocID2143 Rev 31 29/57
L78xx, L78xxC, L78xxAB, L78xxAC Application information
Figure 9. Current regulator
I
O
= V
XX
/R
1
+I
d
Figure 10. Circuit for increasing output voltage
I
R1
 5 I
d
V
O
= V
XX
(1+R
2
/R
1
)+I
d
R
2
Figure 11. Adjustable output regulator (7 to 30 V)