MC7800_11 Datasheet, PDF (12/34 Pages) ON Semiconductor – 1.0 A Positive Voltage Regulators

MC7800, MC7800A, MC7800AE, NCV7800
ELECTRICAL CHARACTERISTICS (V_in = 19 V, I_O = 1.0 A, T_J = T_low to 125°C (Note 19), unless otherwise noted)
MC7812AB/MC7812AC/NCV7812AB
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (T_J = 25°C)
Output Voltage (5.0 mA ≤ I_O ≤ 1.0 A, P_D ≤ 15 W)
14.8 Vdc ≤ V_in ≤ 27 Vdc
Line Regulation (Note 20)
14.8 Vdc ≤ V_in ≤ 30 Vdc, I_O = 500 mA
16 Vdc ≤ V_in ≤ 22 Vdc, I_O = 1.0 A
14.5 Vdc ≤ V_in ≤ 27 Vdc, T_J = 25°C
Load Regulation (Note 20)
5.0 mA ≤ I_O ≤ 1.5 A, T_J = 25°C
5.0 mA ≤ I_O ≤ 1.0 A
V_O
11.75
12
12.25
Vdc
V_O
11.5
12
12.5
Vdc
Reg_line
−
−
−
Reg_load
−
−
mV
3.8
18
2.2
20
6.0
120
mV
−
25
−
25
Quiescent Current
Quiescent Current Change
15 Vdc ≤ V_in ≤ 30 Vdc, I_O = 500 mA
14.8 Vdc ≤ V_in ≤ 27 Vdc, T_J = 25°C
5.0 mA ≤ I_O ≤ 1.0 A, T_J = 25°C
Ripple Rejection
I_B
−
3.4
6.0
mA
DI_B
mA
−
−
0.8
−
−
0.8
−
−
0.5
RR
55
60
−
dB
15 Vdc ≤ V_in ≤ 25 Vdc, f = 120 Hz, I_O = 500 mA
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
−
Vdc
V_n
−
10
−
mV/V_O
Output Resistance (f = 1.0 kHz)
r_O
−
1.1
−
mW
Short Circuit Current Limit (T_A = 25°C)
I_SC
−
0.2
−
A
V_in = 35 Vdc
Peak Output Current (T_J = 25°C)
I_max
−
2.2
−
A
Average Temperature Coefficient of Output Voltage
TCV_O
−
−0.8
−
mV/°C
19. T_low = 0°C for MC78XXC, MC78XXAC,
= *40°C for NCV78XX, MC78XXB, MC78XXAB, and MC78XXAEB
20. 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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