AN78xx/AN78xxF Series
Voltage Regulators
I Main Characteristic Curve
PD Ta (AN78xx series)
PD Ta (AN78xxF series)
VDIF(min.) Tj
16
16
14
12
10
8
2.4
2.0
1.6
1.2
0.8
0.4
0
(1)
14
(2)
12
IO = 1A
500mA
200mA
20mA
(1)
10
8
(2)
(3)
(3)
6
6
0mA
4
4
2
2
(4)
(4)
0
0
0
40
80
120
160
0
40
80
120
160
−40
0
40
80
120
160
Ambient temperature Ta (°C)
Ambient temperature Ta (°C)
Junction temperature Tj (°C)
Thermal resistance value:
Rth(j-c) = 5°C/W (max.)
Rth(j-a) = 65°C/W (max.)
Thermal resistance value:
Rth(j-c) = 12.2°C/W (max.)
Rth(j-a) = 65°C/W (max.)
Installation condition to heat sink
Tightening torque 6kg·cm
Installation condition to heat sink
Tightening torque 6kg·cm
Heat radiation compound used
Heat radiation compound used
(1) Infinite heat sink: 10.25W
(2) 5°C/W heat sink: 7.3W
(3) 15°C/W heat sink: 4.5W
(4) Without heat sink: 1.923W
(1) Infinite heat sink: 15.0W
(2) 5°C/W heat sink: 12.5W
(3) 15°C/W heat sink: 6.3W
(4) Without heat sink: 1.923W
Input transient response
Load transient response
Current limiting characteristic
20
7
AN7805
AN7805
VI = 10V
Tj = 25°C
AN7805
2
6
5
4
3
2
1
0
15
10
5
1
0
10
0
1
0
−10
−20
−1
−2
0
2
4
6
8
10
0
10
20
30
40
50
0
0.6
1.2
1.8
2.4
Time t (µs)
Time t (µs)
Output current IO (A)
8
PANASONIC [ PANASONIC ]
