Datasheet

Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 33 V, I
O
= 500 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise
specified.
Table 18. Electrical characteristics of L7824C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage
T
J
= 25 °C
23 24 25 V
V
O
Output voltage
I
O
= 5 mA to 1 A, V
I
= 27 to 37 V
22.8 24 25.2 V
V
O
Output voltage
I
O
= 1 A, V
I
= 37 to 38 V, T
J
= 25 °C
22.8 24 25.2 V
∆V
O
(1)
Line regulation
V
I
= 27 to 38 V, T
J
= 25 °C
480
mV
V
I
= 30 to 36 V, T
J
= 25 °C
240
∆V
O
(1)
Load regulation
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
480
mV
I
O
= 250 to 750 mA, T
J
= 25 °C
240
I
d
Quiescent current
T
J
= 25 °C
8 mA
∆I
d
Quiescent current change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 27 to 38 V
1
∆V
O
/∆T
Output voltage drift
I
O
= 5 mA
-1.5 mV/°C
eN Output noise voltage
B = 10 Hz to 100 kHz, T
J
= 25 °C
170
µV/V
O
SVR Supply voltage rejection
V
I
= 28 to 38 V, f = 120 Hz
50 dB
V
d
Dropout voltage
I
O
= 1 A, T
J
= 25 °C
2 V
R
O
Output resistance f = 1 kHz 28 mΩ
I
sc
Short circuit current
V
I
= 35 V, T
J
= 25° C
0.15 A
I
scp
Short circuit peak current
T
J
= 25 °C
2.1 A
1. 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.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36
page 21/55
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.