MC79xxCT Series
Vishay
formerly General Semiconductor
Ratings and
Characteristic Curves
(T
A
= 25°C unless otherwise noted)
Fig. 1 – Power Dissipation vs.
Ambient Temperature
20
10
Infinite Heatsink
Fig. 2 – Quiescent Current
Vin = -11V
V
O
= -6.0V
I
O
= 20mA
I
IB
-- Input Bias Current (mA)
P
O
-- Power Dissipation (W)
θ
HS
= 5°C/W
θ
HS
= 15°C/W
2.0
1.0
No Heatsink
θ
JC
= 5°C/W
θ
JA
= 65°C/W
P
D(max)
= 15W
1.9
0.1
25
1.8
50
75
100
125
150
0
25
50
75
100
125
T
A
-- Ambient Temperature (°C)
T
J
-- Junction Temperature (°C)
Fig. 3 – Peak Output Current
2.5
100
Fig. 4 –Ripple Rejection Ratio
vs. Frequency
Vin = --11V
V
o
= --6.0V
I
o
= 20mA
2.0
RR -- Ripple Rejection (db)
80
I
o
-- Output Current (A)
1.5
60
1.0
40
0.5
20
0
0
6.0
12
18
24
30
0
10
100
1.0K
10K
100K
Input -- Output Voltage Differential (V)
f -- Frequency (H
Z
)
Fig. 5 – Ripple Rejection
vs. Output Voltage
80
f = 120Hz
I
o
= 20mA
V
in
= 1.0V(RMS)
70
6.26
Fig. 6 – Output Voltage
vs. Junction Temperature
RR -- Ripple Rejection (db)
V
O
-- Output Voltage (-V)
6.22
6.18
60
6.14
V
in
= --11V
V
o
= --6.0V
I
o
= 20mA
50
6.10
40
4.0
8.0
12
16
20
24
6.06
--25
0
25
50
75
100
125
150
175
V
o
-- Output Voltage (V)
Document Number 74814
11-Jun-02
T
J
-- Junction Temperature (°C)
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