MC7800_14 Datasheet, PDF (15/31 Pages) ON Semiconductor – 1.0 A Positive Voltage Regulators

MC7800, MC7800A, MC7800AE, NCV7800
ELECTRICAL CHARACTERISTICS (V_in = 27 V, I_O = 500 mA, T_J = T_low to 125°C (Note 25), unless otherwise noted)
MC7818B
MC7818C
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)
21 Vdc ≤ V_in ≤ 33 Vdc
22 Vdc ≤ V_in ≤ 33 Vdc
Line Regulation, (Note 26)
21 Vdc ≤ V_in ≤ 33 Vdc
24 Vdc ≤ V_in ≤ 30 Vdc
Load Regulation, (Note 26)
5.0 mA ≤ I_O ≤ 1.5 A
Quiescent Current
Quiescent Current Change
21 Vdc ≤ V_in ≤ 33 Vdc
5.0 mA ≤ I_O ≤ 1.0 A
Ripple Rejection
22 Vdc ≤ V_in ≤ 33 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_O
17.3
18
18.7 17.3
18
18.7
Vdc
V_O
Vdc
−
−
−
17.1
18
18.9
17.1
18
18.9
−
−
−
Reg_line
mV
−
9.5
360
−
9.5
50
−
3.2
180
−
3.2
25
Reg_load
mV
−
2.0
360
−
2.0
55
I_B
−
3.5
8.0
−
3.5
6.5
mA
DI_B
mA
−
−
−
−
−
1.0
−
−
0.5
−
−
0.5
RR
dB
−
57
−
53
57
−
V_iI − V_O
−
2.0
−
V_n
−
10
−
−
2.0
−
Vdc
mV/V_O
−
10
−
Output Resistance f = 1.0 kHz
r_O
−
1.3
−
−
1.3
−
mW
Short Circuit Current Limit (T_A = 25°C)
V_in = 35 Vdc
I_SC
A
−
0.2
−
−
0.2
−
Peak Output Current (T_J = 25°C)
I_max
−
2.2
−
−
2.2
−
A
Average Temperature Coefficient of Output Voltage
TCV_O
−
−1.5
−
−
−1.5
−
mV/°C
25. T_low = 0°C for MC78XXC, MC78XXAC,
= *40°C for NCV78XX, MC78XXB, MC78XXAB, and MC78XXAEB
26. 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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