Datasheet

7 Typical performance
Figure 29. Dropout voltage vs junction temperature
V
I
-V
o
(V)
-75
2
-50
-25 0
25
50
75 100
125
T
j
(°C)
L78XX
GAMG200920161325MT
0
1.5
1
0.5
I
O
= 1 A
I = 500 mA
I = 200 mA
I = 20 mA
I = 0 mA
∆V
O
= 5% of V
O
DROPOUT CONDITIONS
O
O
O
O
Figure 30. Peak output current vs input/output differential
voltage
Io(A)
0
2.5
2
5 10
15
20
25
Vi-V
O
(V)
L7805
GAMG200920161324MT
1.5
1
0.5
Tj = 55 °C
Tj = 0 °C
Tj = 125 °C
Tj = 150 °C
Tj = 25 °C
Figure 31. Supply voltage rejection vs frequency
Vi = 8 V to 18 V
Vo = 5 V
Tj = 25 °C
Io = 500 mA
L7805
SVR
(dB)
20
0
10
10
2
10
3
10
4
f (Hz)
GAMG200920161322MT
40
60
80
Figure 32. Output voltage vs junction temperature
Vo
(V)
-75
12.1
12.0
-50
-25 0
25
50
75 100
125
T
j
(°C)
Vi = 19 V
Vo = 12 V
Io = 20 mA
L7812
GAMG200920161323MT
11.9
11.8
L78
Typical performance
DS0422 - Rev 36
page 30/55