L7818T STMicroelectronics, L7818T Datasheet - Page 23

• Manufacturer Part Number: L7818T
• Description: Linear Regulators - Standard 18V 1.0A Positive
• Manufacturer: STMicroelectronics

Specifications of L7818T

• Polarity: Positive
• Number Of Outputs: 1
• Output Type: Fixed
• Output Voltage: 18.7 V
• Output Current: 1.5 A
• Line Regulation: 180 mV
• Load Regulation: 180 mV
• Dropout Voltage (max): 2.5 V
• Input Voltage Max: 35 V
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 55 C
• Package / Case: TO-3
• Mounting Style: Through Hole
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

L78xx, L78xxC, L78xxAB, L78xxAC
Table 18.
1. Load and line regulation are specified at constant junction temperature. Changes in V
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
/ΔT
d
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 L7812C
Parameter
T
I
I
V
V
I
I
I
V
I
B = 10 Hz to 100 kHz, T
V
I
f = 1 kHz
T
V
T
O
O
O
O
O
O
O
J
J
J
I
I
I
I
I
= 14.5 to 30 V, T
= 16 to 22 V, T
= 14.5 to 30 V
= 15 to 25 V, f = 120 Hz
= 35 V, T
= 5 mA to 1 A, V
= 1 A, V
= 5 mA to 1.5 A, T
= 250 to 750 mA, T
= 5 mA to 1 A
= 5 mA
= 1 A, T
J
= 25°C
= 25°C
= 25°C
= 0 to 125 °C, V
Doc ID 2143 Rev 22
J
I
Test conditions
J
= 25 to 27 V, T
= 25°C
= 25°C
J
= 25°C
J
I
= 14.5 to 25 V
= 25°C
J
J
I
= 25°C
= 19 V, I
= 25°C
J
= 25°C
J
= 25°C
O
= 500 mA, C
O
due to heating effects must be
Min.
11.5
11.4
11.4
55
Electrical characteristics
I
= 0.33 µF, C
Typ.
0.35
2.2
18
12
12
12
75
-1
2
Max.
12.5
12.6
12.6
240
120
240
120
0.5
8
1
O
= 0.1 µF
mV/°C
µV/V
Unit
mV
mV
mA
mA
mΩ
dB
23/56
V
V
V
V
A
A
O