MC78L05 Motorola, MC78L05 Datasheet - Page 6

• Manufacturer Part Number: MC78L05
• Description: Three-Terminal Low Current Positive Voltage Regulators
• Manufacturer: Motorola

10,000
1000
Figure 5. Maximum Average Power Dissipation versus
6
4.2
4.0
3.8
3.6
3.4
3.2
3.0
8.0
6.0
4.0
2.0
100
10
0
0
25
0
0
V out = 5.0 V
MC78L05C
T J = 25 C
Ambient Temperature – TO–92 Type Package
R JA = 200 C/W
P D(max) to 25 C = 625 mW
MC78L05C
V I = 10 V
V O = 5.0 V
I O = 40 mA
Figure 3. Input Bias Current versus
Figure 1. Dropout Characteristics
I O = 40 mA
2.0
25
50
T A , AMBIENT TEMPERATURE ( C)
T A , AMBIENT TEMPERATURE ( C)
Ambient Temperature
V I , INPUT VOLTAGE (V)
I O = 1.0 mA
4.0
50
75
No Heatsink
6.0
75
100
I O = 100 mA
8.0
100
125
MC78L00, A Series
125
10
150
170
150
130
110
90
70
50
30
Figure 6. SOP–8 Thermal Resistance and Maximum
0
Power Dissipation versus P.C.B. Copper Length
5.0
4.0
3.0
2.0
1.0
2.5
2.0
1.5
1.0
0.5
0
0
0
0
Dropout of Regulation is
defined as when
10
5.0
V O = 2% of V O
Figure 2. Dropout Voltage versus
I O = 40 mA
R JA
25
MOTOROLA ANALOG IC DEVICE DATA
L, LENGTH OF COPPER (mm)
Figure 4. Input Bias Current
T J , JUNCTION TEMPERATURE ( C)
10
Junction Temperature
versus Input Voltage
20
V I , INPUT VOLTAGE (V)
Graph represents symmetrical layout
15
L
50
Î Î Î
Î Î Î
Î Î Î
P D(max) for T A = 50 C
I O = 70 mA
Copper
2.0 oz.
V out = 5.0 V
I O = 40 mA
MC78L05C
T J = 25 C
20
L
30
Î Î Î
75
25
I O = 1.0 mA
Î Î Î
Î Î Î
Î Î Î
40
30
100
3.0 mm
35
50
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
125
40