MC7800 Datasheet, PDF (3/32 Pages) Motorola, Inc – THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

MC7800, MC7800A, NCV7805
ELECTRICAL CHARACTERISTICS (V_in = 10 V, I_O = 500 mA, T_J = T_low to T_high (Note 1), unless otherwise noted)
MC7805B, NCV7805
MC7805C
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)
7.0 Vdc ≤ V_in ≤ 20 Vdc
8.0 Vdc ≤ V_in ≤ 20 Vdc
V_O
4.8
5.0
5.2
4.8
5.0
5.2
Vdc
V_O
Vdc
−
−
−
4.75
5.0
5.25
4.75
5.0
5.25
−
−
−
Line Regulation (Note 4)
7.5 Vdc ≤ V_in ≤ 20 Vdc, 1.0 A
8.0 Vdc ≤ V_in ≤ 12 Vdc
Load Regulation (Note 4)
5.0 mA ≤ I_O ≤ 1.0 A
5.0 mA ≤ I_O ≤ 1.5 A (T_A = 25°C)
Reg_line
5.0
100
−
0.5
20
mV
−
1.3
50
−
0.8
10
−
Reg_load
mV
−
1.3
100
−
1.3
25
−
0.15
50
−
1.3
25
Quiescent Current
Quiescent Current Change
7.0 Vdc ≤ V_in ≤ 25 Vdc
5.0 mA ≤ I_O ≤ 1.0 A (T_A = 25°C)
I_B
−
3.2
8.0
−
3.2
6.5
mA
DI_B
−
−
mA
−
−
−
0.3
1.0
−
0.5
−
0.08
0.8
Ripple Rejection
8.0 Vdc ≤ V_in ≤ 18 Vdc, f = 120 Hz
RR
−
68
−
62
83
−
dB
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
Short Circuit Current Limit (T_A = 25°C)
V_in = 35 Vdc
r_O
−
0.9
−
I_SC
−
0.2
−
−
0.9
−
mW
−
0.6
−
A
Peak Output Current (T_J = 25°C)
I_max
−
2.2
−
−
2.2
−
A
Average Temperature Coefficient of Output Voltage TCV_O
−
−0.3
−
−
−0.3
−
mV/°C
1. T_low = 0°C for MC78XXAC, C, T_high = +125°C for MC78XXAC, NCV7805
= *40°C for MC78XXB, MC78XXAB, NCV7805
2. 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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