Data Sheet

KA337 / LM337 — 3-Terminal 1.5 A Negative Adjustable Regulator
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
KA337 / LM337 Rev. 1.1.1 5
Typical Application
Figure 12. Typical Application
Notes:
3. C
I
is required if regulator is located more then 4 inches from power supply filter.
1.0 μF solid tantalum or 10 μF aluminum electrolytic is recommended.
4. C
O
is necessary for stability. 1.0 μF solid tantalum or 10 μF aluminum electrolytic is recommended.
V
O
= -1.25 V (1 + R
2
/ R
1
).
-V
O
-V
I
+
Co
(4)
1 μ F
C
I
(3)
R
2
R
1
Iadj
V
I
V
O
+
I
PROG
Vadj
KA337 / LM337
1
μ F
120 Ω