MC78T12CT ON Semiconductor, MC78T12CT Datasheet - Page 4

• Manufacturer Part Number: MC78T12CT
• Description: IC REG VOLT POS 3A 12V TO220AB
• Manufacturer: ON Semiconductor

Specifications of MC78T12CT

• Regulator Topology: Positive Fixed
• Voltage - Output: 12V
• Voltage - Input: Up to 35V
• Voltage - Dropout (typical): 2.2V @ 3A
• Number Of Regulators: 1
• Current - Output: 3A
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-3 (Straight Leads)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Limit (min): -
• Other names: MC78T12CTOS

NOTES: 1. Although power dissipation is internally limited, specifications apply only for P
ELECTRICAL CHARACTERISTICS
Output Voltage
Line Regulation (Note 2)
Load Regulation (Note 2)
Thermal Regulation
Quiescent Current
Quiescent Current Change
Ripple Rejection
Dropout Voltage (I
Output Noise Voltage
Output Resistance (f = 1.0 kHz)
Short Circuit Current Limit
Peak Output Current (T
Average Temperature Coefficient
(5.0 mA
(5.0 mA
5.0 mA
(14.5 Vdc
14.5 Vdc
16 Vdc
14.9 Vdc
(5.0 mA
(5.0 mA
(Pulse = 10 ms, P = 20 W, T
(5.0 mA
(5.0 mA
(14.5 Vdc
5.0 mA
14.9 Vdc
(15 Vdc
I
(10 Hz
(V
of Output Voltage (I
O
in
= 2.0 A, T
2. Line and load regulation are specified at constant junction temperature. Changes in V
= 35 Vdc, T
Pulse testing with low duty cycle is used.
f
I
V
I
O
O
V
I
I
I
I
I
I
O
O
O
O
O
O
in
V
V
V
in
V
V
J
100 kHz, T
in
in
in
in
in
2.0 A, 14.5 Vdc
3.0 A, T
= 25 C)
3.0 A, T
3.0 A,
3.0 A, T
3.0 A, T
22 Vdc, I
3.0 A)
3.0 A)
25 Vdc, f = 120 Hz,
O
Characteristics
J
35 Vdc, I
27 Vdc, I
27 Vdc, I
35 Vdc, I
35 Vdc, I
= +25 C)
= 3.0 A, T
O
J
= 5.0 mA)
J
= +25 C)
J
J
J
= +25 C;
J
O
= +25 C)
= +25 C)
= +25 C)
= +25 C)
O
O
O
= 3.0 A, T
O
O
J
= 1.0 A, T
= 1.0 A)
= 1.0 A)
A
= 5.0 mA, T
= 5.0 mA, T
= +25 C)
= +25 C)
V
in
J
= +25 C;
27 Vdc)
J
(V
= +25 C;
J
J
in
= +25 C;
= +25 C;
= 17 V, I
O
= 3.0 A, 0 C
MC78T00 Series
Reg
Symbol
V
http://onsemi.com
Reg
Reg
TCV
in
I
RR
R
I
V
max
V
I
SC
– V
therm
B
I
O
O
load
n
B
line
O
O
4
11.75
T
Min
11.5
57
J
–
–
–
–
–
–
–
–
–
–
–
–
–
125 C, P
O
MC78T12AC
P
0.001
max
Typ
6.0
3.5
4.0
0.3
2.2
2.0
1.5
5.0
0.5
12
12
10
15
67
10
O
, P
O
due to heating effects must be taken into account separately.
max
P
max
= 25 W.
12.25
Max
12.5
0.01
5.0
6.0
1.0
2.5
45
30
80
–
–
–
–
–
–
[Note 1], unless otherwise noted.)
11.5
11.4
Min
57
–
–
–
–
–
–
–
–
–
–
–
–
–
MC78T12C
0.002
Typ
6.0
3.5
4.0
0.3
2.2
1.5
5.0
0.5
12
12
10
15
67
10
20
Max
12.5
12.6
0.03
5.0
6.0
1.0
2.5
45
30
80
–
–
–
–
–
–
%V
mV/ C
Unit
Vdc
Vdc
V/V
m
mV
mV
mA
mA
dB
A
A
O
/W
O