MC7800 Datasheet, PDF (11/32 Pages) Motorola, Inc – THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

MC7800, MC7800A, NCV7805
ELECTRICAL CHARACTERISTICS (V_in = 19 V, I_O = 500 mA, T_J = T_low to T_high (Note 16), unless otherwise noted)
MC7812B
MC7812C
Characteristic
Symbol
Min
Typ
Max
Min
Typ
Max Unit
Output Voltage (T_J = 25°C)
Output Voltage (5.0 mA ≤ I_O ≤ 1.0 A, P_D ≤ 15 W)
14.5 Vdc ≤ V_in ≤ 27 Vdc
15.5 Vdc ≤ V_in ≤ 27 Vdc
Line Regulation, T_J = 25°C (Note 17)
14.5 Vdc ≤ V_in ≤ 30 Vdc
16 Vdc ≤ V_in ≤ 22 Vdc
14.8 Vdc ≤ V_in ≤ 27 Vdc, I_O = 1.0 A
Load Regulation, T_J = 25°C (Note 17)
5.0 mA ≤ I_O ≤ 1.5 A
Quiescent Current
Quiescent Current Change
14.5 Vdc ≤ V_in ≤ 30 Vdc, I_O = 1.0 A, T_J = 25°C
15 Vdc ≤ V_in ≤ 30 Vdc
5.0 mA ≤ I_O ≤ 1.0 A
Ripple Rejection
V_O
11.5
12
12.5
11.5
12
12.5
Vdc
V_O
Vdc
−
−
−
11.4
12
12.6
11.4
12
12.6
−
−
−
Reg_line
mV
−
7.5
240
−
3.8
24
−
2.2
120
−
0.3
24
−
−
−
−
−
48
Reg_load
−
1.6
240
−
8.1
60
mV
I_B
−
3.4
8.0
−
3.4
6.5
mA
DI_B
mA
−
−
−
−
−
0.7
−
−
1.0
−
−
0.8
−
−
0.5
−
−
0.5
RR
−
60
−
55
60
−
dB
15 Vdc ≤ V_in ≤ 25 Vdc, f = 120 Hz
Dropout Voltage (I_O = 1.0 A, T_J = 25°C)
Output Noise Voltage (T_A = 25°C)
10 Hz ≤ f ≤ 100 kHz
V_I − V_O
−
2.0
−
V_n
−
10
−
−
2.0
−
Vdc
−
10
−
mV/V_O
Output Resistance f = 1.0 kHz
r_O
−
1.1
−
−
1.1
−
mW
Short Circuit Current Limit (T_A = 25°C)
I_SC
−
0.2
−
−
0.2
−
A
V_in = 35 Vdc
Peak Output Current (T_J = 25°C)
I_max
−
2.2
−
−
2.2
−
A
Average Temperature Coefficient of Output Voltage TCV_O
−
−0.8
−
−
−0.8
−
mV/°C
16. T_low = 0°C for MC78XXAC, C T_high = +125°C for MC78XXAC, C, NCV7805
= *40°C for MC78XXB, MC78XXAB, NCV7805
17. Load and line regulation are specified at constant junction temperature. Changes in V_O due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
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