MC78T00 Datasheet, PDF (8/12 Pages) Motorola, Inc – THREE-AMPERE POSITIVE FIXED VOLTAGE REGULATORS

MC78T00 Series
Figure 9. Dropout Voltage
2.5
8.0
Iout = 3.0 A
2.0
6.0
Iout = 1.0 A
1.5
4.0
Iout = 0.5 A
1.0
2.0
∆VO = 50 mV
0.5
0
–90 –50 –10 30
70
110 150 190
0
TJ, JUNCTION TEMPERATURE (°C)
Figure 10. Peak Output Current
TJ = 0°C
TJ = 25°C
TJ = 125°C
10
20
30
40
Vin–VO, INPUT–OUTPUT VOLTAGE (Vdc)
Figure 11. Line Transient Response
0.8
0.6
Vout = 5.0 V
0.4
Iout = 150 mA
CO = 0
0.2
TJ = 25°C
0
–0.2
–0.4
–0.6
1.0
0.5
0
0
10
20
30
40
t, TIME (µs)
Figure 12. Load Transient Response
0.3
0.2
Vin = 10 V
0.1
CO = 0
TJ = 25°C
0
–0.1
–0.2
–0.3
1.5
1.0
0.5
0
0
10
20
30
40
t, TIME (µs)
Figure 13. Maximum Average Power
Dissipation for MC78T00CT, ACT
40
θ_SA of Heatsinks
30
Maximum Ambient
Temperature
2.4°C/W
20
1.3°C/W
Infinite
Heatsink
3.3°C/W
10 6.3°C/W
10.5°C
0
25
50
75
100
125
TA, AMBIENT TEMPERATURE (°C)
8
MOTOROLA ANALOG IC DEVICE DATA