MC78XXE/LM78XXE/MC78XXAE
8
Electrical Characteristics (MC7818E)
(Continued)
(Refer to test circuit ,0°C < T
J
< 125°C, I
O
= 500mA, V
I
=G27V, C
IG
= 0.33μF, C
O
=G0.1μF, unless otherwise specified)
Note:
1. 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 is used.
2. These parameters, although guaranteed, are not 100% tested in production.
Parameter Symbol Conditions
MC7818E
Unit
Min. Typ. Max.
Output Voltage V
O
T
J
=+25°C 17.3 18 18.7
V
5.0mA ≤ I
O
≤1.0A, P
O
≤15W
V
I
= 21V to 33V
17.1 18 18.9
Line Regulation (Note1) Regline T
J
=+25°C
V
I
= 21V to 33V - 15 360
mV
V
I
= 24V to 30V - 5 180
Load Regulation (Note1) Regload T
J
=+25°C
I
O
= 5mA to 1.5A - 15 360
mV
I
O
= 250mA to 750mA - 5.0 180
Quiescent Current I
Q
T
J
=G+25°C-5.28.0mA
Quiescent Current Change ΔI
Q
I
O
= 5mA to 1.0A - - 0.5
mA
V
I
= 21V to 33V - - 1
Output Voltage Drift (Note2) ΔV
O
/ΔTI
O
= 5mA - -1 - mV/°C
Output Noise Voltage V
N
f = 10Hz to 100kHz, T
A
=G+25°C-110-μV/Vo
RippleGRejection (Note2) RR
f = 120Hz
V
I
= 22V to 32V
53 69 - dB
Dropout Voltage V
Drop
I
O
= 1A, T
JG
= +25°C - 2 - V
Output Resistance (Note2) r
O
f = 1kHz - 22 - mΩ
Short Circuit Current I
SC
V
I
= 35V, T
A
= +25°C - 250 - mA
Peak Current (Note2) I
PK
T
J
= +25°C-2.2-A
