Datasheet

MC79L00, MC79L00A Series
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5
TYPICAL CHARACTERISTICS
(T
A
= +25°C, unless otherwise noted.)
I
IB
, INPUT BIAS CURRENT (mA)
I
IB
, INPUT BIAS CURRENT (mA) V
O
, OUTPUT VOLTAGE (V)
Figure 3. Dropout Characteristics Figure 4. Dropout Voltage versus
Junction Temperature
Figure 5. Input Bias Current versus
Ambient Temperature
Figure 6. Input Bias Current versus
Input Voltage
Figure 7. Maximum Average Power Dissipation
versus Ambient Temperature (TO–92)
8.0
6.0
4.0
2.0
0
0 -2.0 -4.0 -6.0 -0.8 -10
V
in
, INPUT VOLTAGE (V)
MC79L05C
V
O
= -5.0 V
T
J
= 25°C
I
O
= 1.0 mA I
O
= 100 mA
I
O
= 40 mA
-2.5
-2.0
-1.5
-1.0
-0.5
0
0 25 50 75 100 125
, INPUT/OUTPUT DIFFERENTIAL
VOLTAGE (V)
IO
T
J
, JUNCTION TEMPERATURE (°C)
I
O
= 70 mA
-VV
4.0
4.2
3.8
3.6
3.4
3.2
3.0
0
0 25 50 75 100 125
T
A
, AMBIENT TEMPERATURE (°C)
MC79L05C
V
in
= -10 V
V
O
= -5.0 V
I
O
= 40 mA
5.0
4.0
3.0
2.0
1.0
0
0 -5.0 -10 -15 -20 -25 -30 -35 -40
V
in
, INPUT VOLTAGE (V)
MC79L05C
V
O
= -5.0 V
I
O
= 40 mA
10,000
1,000
100
10
, POWER DISSIPATION (mW)
D
T
A
, AMBIENT TEMPERATURE (°C)
25 50 75 100 125 150
P
No Heatsink
R
Θ
JA
= 200°C/W
P
D(max)
to 25°C = 625 mW
Figure 8. SOP–8 Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
30
50
70
90
110
130
150
0.4
0.8
1.2
1.6
2.0
2.4
2.8
02030504010
L, LENGTH OF COPPER (mm)
170
3.2
P
D(max)
for T
A
= +50°C
R
θ
JA
P
D
, MAXIMUM POWER DISSIPATION (W)
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
ÎÎÎ
2.0 oz.
Copper
Graph represents symmetrical layout
3.0 mmL
L
I
O
= 40 mA
I
O
= 1.0 mA
JUNCTION-TO-AIR ( C/W)°
R
JA
, THERMAL RESISTANCE
θ
Dropout of Regulation is
defined when
∆V
O
= 2% of V
O