L7812AB STMicroelectronics, L7812AB Datasheet - Page 26

• Manufacturer Part Number: L7812AB
• Description: Precision 1 A regulators
• Manufacturer: STMicroelectronics

Electrical characteristics
Table 21.
1. Load and line regulation are specified at constant junction temperature. Changes in V
26/57
Symbol
ΔV
ΔV
ΔV
SVR
taken into account separately. Pulse testing with low duty cycle is used.
I
ΔI
R
V
V
V
eN
V
I
O
scp
I
sc
O
O
d
O
O
O
O
d
/ΔT
d
(1)
(1)
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
Supply voltage rejection
Dropout voltage
Output resistance
Short circuit current
Short circuit peak current
Refer to the test circuits, T
unless otherwise specified.
Electrical characteristics of L7820C
Parameter
T
I
I
V
V
I
I
T
I
V
I
B = 10 Hz to 100 kHz, T
V
I
f = 1 kHz
V
T
O
O
O
O
O
O
O
J
J
J
I
I
I
I
I
= 5 mA to 1 A, V
= 1 A, V
= 22.5 to 35 V, T
= 26 to 32 V, T
= 5 mA to 1.5 A, T
= 250 to 750 mA, T
= 5 mA to 1 A
= 23 to 35 V
= 5 mA
= 24 to 35 V, f = 120 Hz
= 1 A, T
= 35 V, T
J
= 25°C
= 25°C
= 25°C
= 0 to 125 °C, V
Doc ID 2143 Rev 26
J
I
Test conditions
J
= 33 to 35 V, T
= 25°C
= 25°C
J
= 25°C
I
J
= 23 to 33 V
= 25°C
J
J
I
= 25°C
= 28 V, I
= 25°C
J
= 25°C
J
= 25°C
O
L78xx, L78xxC, L78xxAB, L78xxAC
= 500 mA, C
O
due to heating effects must be
Min.
19.2
19
19
52
I
= 0.33 µF, C
Typ.
0.18
150
2.1
20
20
20
24
-1
2
Max.
20.8
400
200
400
200
0.5
21
21
8
1
O
= 0.1 µF
mV/°C
µV/V
Unit
mΩ
mV
mV
mA
mA
dB
V
V
V
V
A
A
O