Data Sheet

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