MC7800 Datasheet, PDF (13/16 Pages) Motorola, Inc – THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

MC7800, MC7800A, LM340, LM340A Series
Figure 1. Peak Output Current as a Function of
Input/Output Differential Voltage (MC78XXC, AC)
3.0
TJ = –40°C
2.5
TJ = 0°C
2.0
1.5
TJ = 85°C
1.0
TJ = 25°C
0.5
TJ = 125°C
0
4.0 6.0 8.0 10 12 15 20 25 30 35 40
Vin–Vout, INPUT/OUPUT VOLTAGE DIFFERENTIAL (V)
Figure 2. Ripple Rejection as a Function of
Output Voltages (MC78XXC, AC)
80
70
PART # Vin
MC7805C = 10 V
60 _{MC7806C = 11 V}
MC7808C = 14 V
MC7812C = 19 V
50
MC7815C = 23 V
MC7818C = 27 V
MC7824C = 33 V
f = 120 Hz
IO = 20 mA
∆Vin = 1.0 V(RMS)
40
4.0 6.0 8.0 10 12 14 16 18 20 22 24
VO, OUTPUT VOLTAGE (V)
Figure 3. Ripple Rejection as a Function of
Frequency (MC78XXC, AC)
80
70
MC78XXB, C, AC
60
Vin = 8.0 V to 18 V
IO = 500 mA
50
f = 120 Hz
TA = 25°C
40
30
0.01
0.1
1.0
10
f, FREQUENCY (kHz)
Figure 4. Output Voltage as a Function of
Junction Temperature (MC7805C, AC)
5.0
Vin = 20 V
IO = 5.0 mA
4.9
4.8
–60
–20
20
60
100
140
180
TJ, JUNCTION TEMPERATURE (°C)
Figure 5. Output Impedance as a Function of
Output Voltage (MC78XXC, AC)
10
5.0
f = 120 Hz
3.0
IO = 500 mA
2.0
CL = 0 µF
1.0
0.5
0.3
0.2
0.1
4.0
8.0
12
16
20
24
VO, OUTPUT VOLTAGE (V)
Figure 6. Quiescent Current as a Function of
Temperature (MC78XXC, AC)
6.0
Vin = 10 V
4.0
VO = 5.0 V
IL = 20 mA
3.0
2.0
1.0
0
–75 –50
–25 0 25 50 75
TJ, JUNCTION TEMPERATURE (°C)
100 125
MOTOROLA ANALOG IC DEVICE DATA
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