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IL78XXC
SERIES
5
IL7818
Electrical characteristics
(Vin = 27V, Io = 500mA, TJ = Tlow to Thigh (Note 1) unless otherwise noted)
Characteristic
Output Voltage (TJ=+25
°
C)
Output Voltage
(5.0
mA
≤
Io
≤
1.0A, Po
≤
15 W)
21Vdc
≤
Vin
≤
33Vdc
Line Regulation(TJ=+25
°
C, Note2)
21Vdc
≤
Vin
≤
33Vdc
24Vdc
≤
Vin
≤
30Vdc
Load Regulation(TJ=+25
°
C,Note2)
5.0mA
≤
Io
≤
1.5A
250mA
≤
Io
≤
750 mA
Quiescent Current (TJ=+25
°
C)
Quiescent Current Change
21Vdc
≤
Vin
≤
33Vdc
5.0mA
≤
Io
≤
1.0A
Ripple Rejection
22Vdc
≤
Vin
≤
33Vdc, f = 120 Hz
Dropout Voltage (Io=1.0A,T =+25
°
C)
Output Noise Voltage(TA=+25
°
C)
10 Hz
≤
f
≤
100 kHz
Output Resistance f = 1.0 kHz
Short - Circuit Current Limit
(TA=+25
°
C) Vin = 35 Vdc
Peak Output Current(TJ=+25
°
C)
Average Temperature Coefficient of
Output Voltage
IL7824
Electrical characteristics
(Vin = 33V, Io = 500mA, TJ = Tlow to Thigh (Note 1) unless otherwise noted)
Characteristic
Output Voltage (TJ=+25
°
C)
Output Voltage
(5.0
mA
≤
Io
≤
1.0A, Po
≤
15 W)
27Vdc
≤
Vin
≤
38Vdc
Line Regulation(TJ=+25
°
C, Note2)
27Vdc
≤
Vin
≤
38Vdc
30Vdc
≤
Vin
≤
38Vdc
Load Regulation(TJ=+25
°
C,Note2)
5.0mA
≤
Io
≤
1.5A
250mA
≤
Io
≤
750 mA
Quiescent Current (TJ=+25
°
C)
Quiescent Current Change
27Vdc
≤
Vin
≤
38Vdc
5.0mA
≤
Io
≤
1.0A
Ripple Rejection
28Vdc
≤
Vin
≤
38Vdc, f = 120 Hz
Dropout Voltage (Io=1.0A,T =+25
°
C)
Output Noise Voltage(TA=+25
°
C)
10 Hz
≤
f
≤
13100 kHz
Output Resistance f = 1.0 kHz
Short - Circuit Current Limit
(TA=+25
°
C) Vin = 35 Vdc
Peak Output Current(TJ=+25
°
C)
Average Temperature Coefficient of
Output Voltage
Note:
1. Tlow = 0
°
C
, Thigh = +125 0
°
C
2.Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken
into account separately. Pulse testing with low duty cycle is used.
Symbol
Vo
Vo
Min
17.3
17.1
Typ
18
18
Max
18.7
18.9
Unit
Vdc
Vdc
Regline
-
-
-
-
-
-
-
-
25
10
55
22
4.5
-
-
57
360
180
360
180
8.0
1.0
0.5
-
mV
Regload
mV
IB
IB
mA
mA
RR
dB
Vin-Vo
Vn
-
-
2.0
10
-
-
Vdc
μ
V/Vo
ro
Isc
-
-
19
0.2
-
-
m
A
Imax
TCVo
-
-
2.2
-1.0
-
-
A
mV/
°
C
Symbol
Vo
Vo
Min
23
22.8
Typ
24
24
Max
25
25.2
Unit
Vdc
Vdc
Regline
-
-
-
-
-
-
-
-
31
14
60
25
4.6
-
-
54
480
240
480
240
8.0
1.0
0.5
-
mV
Regload
mV
IB
IB
mA
mA
RR
dB
Vin-Vo
Vn
-
-
2.0
10
-
-
Vdc
μ
V/Vo
ro
Isc
-
-
20
0.2
-
-
m
A
Imax
TCVo
-
-
2.2
-1.5
-
-
A
mV/
°
C