IL78XXC SERIES
IL7818
Electrical characteristics
(Vin = 27V, Io = 500mA, TJ = Tlow to Thigh (Note 1) unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (TJ=+25°C)
Vo
17.3
18
18.7
Vdc
Output Voltage
(5.0 mA≤Io≤1.0A, Po≤15 W)
Vo
17.1
18
18.9
Vdc
21Vdc≤Vin≤33Vdc
Line Regulation(TJ=+25°C, Note2)
21Vdc≤Vin≤33Vdc
24Vdc≤Vin≤30Vdc
Regline
-
-
mV
25
360
10
180
Load Regulation(TJ=+25°C,Note2)
5.0mA≤Io≤1.5A
250mA≤Io≤750 mA
Regload
-
-
mV
55
360
22
180
Quiescent Current (TJ=+25°C)
IB
-
4.5
8.0
mA
Quiescent Current Change
21Vdc≤Vin≤33Vdc
5.0mA≤Io≤1.0A
∆ IB
-
-
mA
-
1.0
-
0.5
Ripple Rejection
RR
-
57
-
dB
22Vdc≤Vin≤33Vdc, f = 120 Hz
Dropout Voltage (Io=1.0A,T =+25°C)
Vin-Vo
-
2.0
-
Vdc
Output Noise Voltage(TA=+25°C)
Vn
-
10
-
µV/Vo
10 Hz ≤f≤100 kHz
Output Resistance f = 1.0 kHz
ro
-
19
-
mΩ
Short - Circuit Current Limit
Isc
-
0.2
-
A
(TA=+25°C) Vin = 35 Vdc
Peak Output Current(TJ=+25°C)
Imax
-
2.2
-
A
Average Temperature Coefficient of
Output Voltage
TCVo
-
-1.0
-
mV/°C
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
Symbol
Min
Typ
Max
Unit
Vo
23
24
25
Vdc
Vo
22.8
24
25.2
Vdc
Regline
-
-
Regload
-
-
IB
-
∆ IB
-
-
RR
-
Vin-Vo
-
Vn
-
ro
-
Isc
-
Imax
-
TCVo
-
mV
31
480
14
240
mV
60
480
25
240
4.6
8.0
mA
mA
-
1.0
-
0.5
54
-
dB
2.0
-
Vdc
10
-
µV/Vo
20
-
mΩ
0.2
-
A
2.2
-
A
-1.5
-
mV/°C
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.
5