L7800 SERIES
Table 23: Electrical Characteristics Of L7824C (refer to the test circuits, T = 0 to 125°C, V = 33V,
J
I
I = 500 mA, C = 0.33 µF, C = 0.1 µF unless otherwise specified).
O
I
O
Symbol
Parameter
Test Conditions
Min.
23
Typ.
24
Max.
25
Unit
V
V
V
Output Voltage
Output Voltage
T = 25°C
J
O
O
I
= 5 mA to 1 A
P
≤ 15W
O
22.8
24
25.2
V
O
V = 27 to 38 V
I
∆V (*) Line Regulation
V = 27 to 38 V
T = 25°C
480
240
480
240
8
mV
mV
O
I
J
V = 30 to 36 V
T = 25°C
J
I
∆V (*) Load Regulation
I
I
= 5 mA to 1.5 A
= 250 to 750 mA
T = 25°C
J
O
O
O
T = 25°C
J
I
Quiescent Current
Quiescent Current Change
T = 25°C
mA
mA
d
J
∆I
I
= 5 mA to 1 A
O
0.5
1
d
V = 27 to 38 V
I
∆V /∆T Output Voltage Drift
I
= 5 mA
O
-1.5
170
mV/°C
O
eN Output Noise Voltage
SVR Supply Voltage Rejection
B =10Hz to 100KHz
V = 28 to 38 V
T = 25°C
µV/V
dB
V
J
O
f = 120Hz
50
I
V
Dropout Voltage
I
= 1 A
T = 25°C
2
d
O
O
J
R
Output Resistance
Short Circuit Current
f = 1 KHz
V = 35 V T = 25°C
28
mΩ
A
I
0.15
2.1
sc
I
J
I
Short Circuit Peak Current T = 25°C
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.
Figure 8: Dropout Voltage vs Junction
Figure 9: Peak Output Current vs Input/output
Temperature
Differential Voltage
15/34
STMICROELECTRONICS [ ST ]
