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 4
Typical Performance Characteristics
Figure 8. Noise Voltage vs. Temperature
Figure 9. Ripple Rejection vs. Temperature
Figure 10. Short-Circuit Currents vs. Temperature Figure 11. Peak Current vs. Temperature
0
10
20
30
40
50
60
70
80
10 100 1000 10
4
-45
-25
0
25
55
85
100
125
e
N
- Noise Voltage (uVrms)
V
I
-V
O
= 5V
Bandwidth Frequency (Hz)
50
55
60
65
70
75
80
-40 -20 0 20 40 60 80 100 120
w/o C
ADJ
with C
ADJ
V
OUT
= -10 V
C
ADJ
= 10 μF
Datasheet specs w/o C
ADJ
Min:
Typ: 60 dB
Max:
with C
ADJ
Min: 66 dB
Typ: 77 dB
Max:
T
A
- Temperature[
o
C]
RR - Ripple Rejection Ratio (dB)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
-40 -20 0 20 40 60 80 100 120
V
I
- V
O
= 40 V
V
OUT
= GND
Test specs at 25
o
C [%]
Min: 0.08 A
Typ: 0.25 A
Max: 0.9 A
T
A
- Temperature[
o
C]
I
SCC
- Short Circuit Current (A)
1.5
2.0
2.5
3.0
3.5
-40 -20 0 20 40 60 80 100 120
Test specs at 25
o
C
Min: 1.5 A
Typ: 2.5 A
Max: 3.5 A
V
I
- V
O
= 5 V
T
A
- Temperature[
o
C]
I
ADJ
- Adjustable Pin Current (μA)