
MC79L00, A Series
TYPICAL CHARACTERISTICS
(TA = +25
°
C, unless otherwise noted.)
5
MOTOROLA ANALOG IC DEVICE DATA
II
II
VO
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
Vin, INPUT VOLTAGE (V)
MC79L05C
VO = –5.0 V
TJ = 25
°
C
IO = 1.0 mA
IO = 100 mA
IO = 40 mA
–2.5
–2.0
–1.5
–1.0
–0.5
0
0
25
50
75
100
125
,
O
–
V
I
V
TJ, JUNCTION TEMPERATURE (
°
C)
IO = 70 mA
4.0
4.2
3.8
3.6
3.4
3.2
3.0
00
25
50
75
100
125
TA, AMBIENT TEMPERATURE (
°
C)
MC79L05C
Vin = –10 V
VO = –5.0 V
IO = 40 mA
5.0
4.0
3.0
2.0
1.0
0
0
–5.0
–10
–15
Vin, INPUT VOLTAGE (V)
–20
–25
–30
–35
–40
MC79L05C
VO = –5.0 V
IO = 40 mA
10,000
1,000
100
10
,
D
P
TA, AMBIENT TEMPERATURE (
°
C)
25
50
75
100
125
150
No Heatsink
R
Θ
JA = 200
°
C/W
PD(max) to 25
°
C = 625 mW
Figure 8. SOP–8 Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
170
30
50
70
90
110
130
150
0.4
0.8
1.2
1.6
2.0
2.4
2.8
0
20
30
50
40
10
L, LENGTH OF COPPER (mm)
3.2
PD(max) for TA = +50
°
C
R
θ
JA
PD
2.0 oz.
Graph represents symmetrical layout
L
IO = 40 mA
IO = 1.0 mA
J
°
R
θ
Dropout of Regulation is
defined when
VO = 2% of VO