L7800
ELECTRICAL CHARACTERISTICS FOR L7818C
(refer to the test circuits, T
j
= 0 to 125
o
C, V
i
= 26V,
I
o
= 500 mA, C
i
= 0.33
µF,
C
o
= 0.1
µF
unless otherwise specified)
Symbol
V
o
V
o
∆V
o
*
∆V
o
*
I
d
∆I
d
∆I
d
∆
V
o
∆
T
eN
SVR
V
d
R
o
I
sc
I
s cp
Parameter
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Supply Voltage Rejection
Dropout Voltage
Output Resistance
Short Circuit Current
Short Circuit Peak Current
T
j
= 25 C
I
o
= 5 mA to 1 A
V
i
= 21 to 33 V
V
i
= 21 to 33 V
V
i
= 24 to 30 V
P
o
≤
15 W
T
j
= 25
o
C
o
T
j
= 25 C
T
j
= 25 C
o
T
j
= 25 C
o
o
Test Conditions
Min.
17.3
17.1
Typ.
18
18
Max.
18.7
18.9
360
180
360
180
8
0.5
1
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
mV/ C
µV
dB
V
mΩ
mA
A
o
I
o
= 5 to 1500 mA
I
o
= 250 to 750 mA
T
j
= 25
o
C
I
o
= 5 to 1000 mA
V
i
= 21 to 33 V
I
o
= 5 mA
-1
110
53
2
22
T
j
= 25 C
o
B = 10Hz to 100KHz T
j
= 25
o
C
V
i
= 22 to 32 V
I
o
= 1 A
f = 1 KHz
V
i
= 35 V
T
j
= 25 C
o
f = 120 Hz
o
T
j
= 25 C
200
2.1
ELECTRICAL CHARACTERISTICS FOR L7820C
(refer to the test circuits, T
j
= 0 to 125
o
C, V
i
= 28V,
I
o
= 500 mA, C
i
= 0.33
µF,
C
o
= 0.1
µF
unless otherwise specified)
Symbol
V
o
V
o
∆V
o
*
∆V
o
*
I
d
∆I
d
∆I
d
∆
V
o
∆
T
eN
SVR
V
d
R
o
I
sc
I
s cp
Parameter
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Supply Voltage Rejection
Dropout Voltage
Output Resistance
Short Circuit Current
Short Circuit Peak Current
T
j
= 25 C
I
o
= 5 mA to 1 A
V
i
= 23 to 35 V
P
o
≤
15 W
o
o
Test Conditions
Min.
19.2
19
Typ.
20
20
Max.
20.8
21
400
200
400
200
8
0.5
1
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
mV/ C
µV
dB
V
mΩ
mA
A
o
V
i
= 22.5 to 35 V T
j
= 25 C
o
V
i
= 26 to 32 V T
j
= 25 C
I
o
= 5 to 1500 mA
I
o
= 250 to 750 mA
T
j
= 25
o
C
I
o
= 5 to 1000 mA
V
i
= 23 to 35 V
I
o
= 5 mA
B = 10Hz to 100KHz T
j
= 25 C
V
i
= 24 to 35 V
I
o
= 1 A
f = 1 KHz
V
i
= 35 V
T
j
= 25
o
C
T
j
= 25 C
o
o
T
j
= 25
o
C
o
T
j
= 25 C
-1
150
52
2
24
180
2.1
f = 120 Hz
T
j
= 25
o
C
* Load and line regulation are specified at constant junction temperature. Changes in V
o
due to heating effects must be taken into account
separately. Pulce testing with low duty cycle is used.
13/25