MC78T12CT ON Semiconductor, MC78T12CT Datasheet - Page 5

• 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 of Output Voltage
(5.0 mA
(5.0 mA
5.0 mA
(17.6 Vdc
17.6 Vdc
20 Vdc
18 Vdc
(5.0 mA
(5.0 mA
(Pulse = 10 ms, P = 20 W, T
(5.0 mA
(5.0 mA
(17.6 Vdc
5.0 mA
18 Vdc
(18.5 Vdc
I
(10 Hz
(V
(I
O
O
in
= 2.0 A, T
= 5.0 mA)
2. Line and load regulation are specified at constant junction temperature. Changes in V
= 40 Vdc, T
Pulse testing with low duty cycle is used.
f
I
V
V
I
V
O
O
I
I
I
I
I
I
O
O
O
O
O
O
in
in
in
V
V
V
V
J
in
100 kHz, T
in
in
in
= 25 C)
2.0 A, 17.5 Vdc
3.0 A, T
3.0 A, T
3.0 A;
26 Vdc, I
30 Vdc, I
3.0 A, T
3.0 A)
3.0 A, T
3.0 A)
30 Vdc, I
Characteristics
O
J
40 Vdc, I
40 Vdc, I
40 Vdc, I
28.5 Vdc, f = 120 Hz,
= +25 C)
= 3.0 A, T
J
J
J
J
J
= +25 C)
= +25 C;
O
O
O
J
= +25 C)
= +25 C)
= +25 C)
= +25 C)
O
= 3.0 A, T
= 1.0 A)
= 1.0 A)
O
O
J
= 1.0 A, T
A
= 5.0 mA, T
= 5.0 mA, T
= +25 C)
= +25 C)
V
in
J
= +25 C;
30 Vdc)
J
(V
= +25 C;
J
J
in
= +25 C;
= +25 C;
= 20 V, I
O
= 3.0 A, 0 C
MC78T00 Series
Reg
Symbol
Reg
Reg
V
http://onsemi.com
TCV
in
I
RR
V
R
I
max
V
I
SC
–V
therm
B
I
O
O
n
load
B
line
O
O
5
14.7
14.4
T
Min
55
–
–
–
–
–
–
–
–
–
–
–
–
–
J
125 C, P
O
MC78T15AC
P
0.001
Typ
max
7.5
3.5
4.0
0.3
2.2
2.0
1.0
5.0
0.6
15
15
10
15
65
10
O
, P
O
due to heating effects must be taken into account separately.
max
P
max
= 25 W.
Max
15.3
15.6
0.01
5.0
6.0
1.0
2.5
55
30
80
–
–
–
–
–
–
[Note 1], unless otherwise noted.)
14.25
14.4
Min
55
–
–
–
–
–
–
–
–
–
–
–
–
–
MC78T15C
0.002
Typ
7.5
3.5
4.0
0.3
2.2
1.0
5.0
0.6
15
15
10
15
65
10
20
15.75
Max
15.6
0.03
5.0
6.0
1.0
2.5
55
30
80
–
–
–
–
–
–
%V
mV/ C
Unit
Vdc
Vdc
V/V
m
mV
mV
mA
mA
dB
A
A
O
/W
O