L7800 SERIES
Figure 7: Ripple Rejection
Table 4: Electrical Characteristics Of L7805 (refer to the test circuits, T = -55 to 150°C, V = 10V,
J
I
I = 500 mA, C = 0.33 µF, C = 0.1 µF unless otherwise specified).
O
I
O
Symbol
Parameter
Test Conditions
Min.
4.8
Typ.
Max.
5.2
Unit
V
V
V
Output Voltage
Output Voltage
T = 25°C
5
5
O
O
J
I
= 5 mA to 1 A
P
≤ 15W
O
4.65
5.35
V
O
V = 8 to 20 V
I
∆V (*) Line Regulation
V = 7 to 25 V
T = 25°C
3
1
50
25
mV
mV
O
I
J
V = 8 to 12 V
T = 25°C
J
I
∆V (*) Load Regulation
I
I
= 5 mA to 1.5 A
= 250 to 750 mA
T = 25°C
100
25
O
O
O
J
T = 25°C
J
I
Quiescent Current
Quiescent Current Change
T = 25°C
6
mA
mA
d
J
∆I
I
= 5 mA to 1 A
O
0.5
0.8
d
V = 8 to 25 V
I
∆V /∆T Output Voltage Drift
I
= 5 mA
O
0.6
mV/°C
O
eN
Output Noise Voltage
B =10Hz to 100KHz
V = 8 to 18 V
T = 25°C
40
µV/V
dB
V
J
O
SVR Supply Voltage Rejection
f = 120Hz
68
I
V
Dropout Voltage
I
= 1 A
T = 25°C
2
2.5
d
O
J
R
Output Resistance
Short Circuit Current
f = 1 KHz
V = 35 V T = 25°C
17
mΩ
A
O
I
0.75
2.2
1.2
3.3
sc
I
J
I
Short Circuit Peak Current T = 25°C
1.3
A
scp
J
(*) Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken into account
O
separately. Pulse testing with low duty cycle is used.
5/34
STMICROELECTRONICS [ ST ]
