MC78T12CT ON Semiconductor, MC78T12CT Datasheet - Page 2

• 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
MAXIMUM RATINGS
NOTES: 1. Although power dissipation is internally limited, specifications apply only for P
ELECTRICAL CHARACTERISTICS
Input Voltage (5.0 V – 12 V)
Input Voltage
Power Dissipation and Thermal Characteristics
Storage Junction Temperature
Operating Junction Temperature Range
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 of Output Voltage
Plastic Package (Note 1)
(MC78T00C, AC)
(5.0 mA
(5.0 mA
5.0 mA
(7.2 Vdc
7.2 Vdc
8.0 Vdc
7.5 Vdc
(5.0 mA
(5.0 mA
(Pulse = 10 ms, P = 20 W, T
(5.0 mA
(5.0 mA
(7.2 Vdc
5.0 mA
7.5 Vdc
(8.0 Vdc
I
(10 Hz
(V
(I
O
O
T
Thermal Resistance, Junction–to–Air
T
Thermal Resistance, Junction–to–Case
in
= 2.0 A, T
A
= 5.0 mA)
C
2. Line and load regulation are specified at constant junction temperature. Changes in V
= 35 Vdc, T
= +25 C
= +25 C
Pulse testing with low duty cycle is used.
f
I
I
O
V
V
V
O
V
I
I
I
I
I
I
O
O
V
O
O
O
O
V
V
(15 V)
in
in
in
in
in
in
in
J
100 kHz, T
2.0 A, 7.3 Vdc
3.0 A, T
= 25 C)
3.0 A, T
3.0 A;
3.0 A, T
3.0 A, T
3.0 A)
3.0 A)
Characteristics
35 Vdc, I
12 Vdc, I
20 Vdc, I
20 Vdc, I
O
J
35 Vdc, I
35 Vdc, I
18 Vdc, f = 120 Hz,
= +25 C)
= 3.0 A, T
J
(T
J
= +25 C)
J
J
J
= +25 C;
J
A
= +25 C)
= +25 C)
= +25 C)
O
O
O
O
O
O
= +25 C)
= +25 C, unless otherwise noted.)
= 1.0 A, T
= 3.0 A, T
= 1.0 A)
= 1.0 A)
= 5.0 mA, T
= 5.0 mA, T
J
A
= +25 C)
= +25 C)
V
in
20 Vdc)
J
J
Rating
= +25 C;
= +25 C;
(V
J
J
= +25 C;
= +25 C;
in
= 10 V, I
O
Reg
= 3.0 A, 0 C
Symbol
Reg
MC78T00 Series
V
Reg
TCV
http://onsemi.com
in
I
RR
R
I
V
max
V
I
SC
–V
therm
B
I
O
O
load
n
B
line
O
O
2
Min
4.9
4.8
62
T
–
–
–
–
–
–
–
–
–
–
–
–
–
J
MC78T05AC
125 C, P
O
O
0.001
P
Typ
5.0
5.0
3.0
3.5
4.0
0.3
2.2
2.0
1.5
5.0
0.2
10
15
75
10
P
max
max
O
, P
O
, P
due to heating effects must be taken into account separately.
max
max
P
Max
0.01
max
5.1
5.2
5.0
6.0
1.0
2.5
= 25 W.
25
30
80
–
–
–
–
–
–
= 25 W.
Symbol
R
R
[Note 1], unless otherwise noted.)
T
P
P
T
V
stg
D
D
JA
JC
J
I
4.75
Min
4.8
62
–
–
–
–
–
–
–
–
–
–
–
–
–
MC78T05C
Internally Limited
Internally Limited
0.002
Typ
5.0
5.0
3.0
3.5
4.0
0.3
2.2
1.5
5.0
0.2
10
15
75
10
20
0 to +125
Value
+150
2.5
35
40
65
Max
5.25
0.03
5.2
5.0
6.0
1.0
2.5
25
30
80
–
–
–
–
–
–
%V
mV/ C
Unit
Vdc
Vdc
V/V
m
mV
mV
mA
mA
Unit
Vdc
dB
C/W
C/W
A
A
O
C
C
/W
O