L7809AB STMicroelectronics, L7809AB Datasheet - Page 29

• Manufacturer Part Number: L7809AB
• Description: Precision 1 A regulators
• Manufacturer: STMicroelectronics

L78xx, L78xxC, L78xxAB, L78xxAC
Figure 9.
Figure 10. Circuit for increasing output voltage
Figure 11. Adjustable output regulator (7 to 30 V)
I
V
R1
O
= V
≥ 5 I
I
XX
O
d
= V
(1+R
Current regulator
XX
2
/R
/R
1
1
+I
)+I
d
d
R
2
Doc ID 2143 Rev 26
Application information
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