MC78TXX
2
Absolute Maximum Ratings
Note:
1. Thermal resistance test board
Size: 76.2mm * 114.3mm * 1.6mm(1S0P)
JEDEC standard: JESD51-3, JESD51-7
2. Assume no ambient airflow.
Electrical Characteristics(MC78T05)
(V
I
= 10V, I
O
= 3.0 A, 0
°
C
≤
T
J
≤
+125
°
C, Po
≤
P
MAX
(Note3), unless otherwise specified. )
Note:
3. Although power dissipation is internally limited, specifications apply only for P
O
≤
Pmax, Pmax = 25W
4. Load and line regulation are specified at constant junction temperature. Change in Vo due heating effects must be taken into
account separately. Pulse testing with low duty is used.
Parameter
Input Voltage (for V
O
= 5V to 12V)
(for V
O
= 15V)
Power Dissipation
Thermal Resistance, Junction to Air (Note1, 2)
Ta = +25
°
C
Thermal Resistance, Junction to Case (Note1)
Tc = +25
°
C
Operating Junction Temperature Range
Storage Temperature Range
Symbol
Value
35
40
Unit
V
V
V
I
PD
Internally limited
R
θ
JA
65
°
C/W
R
θ
JC
2.5
°
C/W
T
J
0 ~ +125
-65 ~ +150
°
C
°
C
T
STG
Parameter
Symbol
Conditions
Min.
4.8
4.75
Typ.
5.0
5.0
Max.
5.2
5.25
Unit
Output Voltage
Vo
5mA
≤
Io
≤
3.0A , T
J
= +25
°
C
7.3V
≤
VI
≤
20V, 5mA
≤
Io
≤
2.0A
7.2V
≤
VI
≤
35V , Io=5mA, T
J
=+25
°
C
7.2V
≤
VI
≤
35V , Io=1.0A, T
J
= +25
°
C
7.5V
≤
VI
≤
20V, Io =2.0A, T
J
= +25
°
C
8.0V
≤
VI
≤
12V, Io =3.0A, T
J
= +25
°
C
5mA
≤
Io
≤
3.0A , T
J
= +25
°
C
5mA
≤
Io
≤
3.0A
Pulse =10ms, P = 20W
T
A
= +25
°
C
5mA
≤
Io
≤
3.0A , T
J
= +25
°
C
5mA
≤
Io
≤
3.0A
7.2V
≤
VI
≤
35V, Io = 5mA
T
J
= +25
°
C ;
7.5V
≤
VI
≤
20V, Io =2.0A ;
5mA
≤
Io
≤
3.0A, T
J
= +25
°
C
f = 120Hz, 8V
≤
V
I
≤
18V, I
o
=
2.0A
T
J
= +25
°
C
Io = 3A ,T
J
= +25
°
C
T
A
= +25
°
C, 10Hz
≤
f
≤
100kHz
T
A
= +25
°
C
f = 1.0kHz
VI = 35V, T
J
=+25
°
C
V
Line Regulation (Note4)
V
O
-
3.0
25
mV
Load Regulation (Note4)
V
O
-
10
15
30
80
mV
mV
Thermal Regulation
REG
T
-
0.002
0.03
%Vo/W
Quiescent Current
I
Q
-
3.5
4.0
5.0
6.0
mA
mA
Quiescent Current Change
I
Q
-
0.1
0.8
mA
Ripple Rejection
RR
-
75
-
dB
Dropout Voltage
Output Noise Voltage
Peak Output Current
Output Resistance
Short Circuit Current Limit
Average Temperature
Coefficient of Output Voltage
V
O
/
T
V
D
V
N
I
PK
Ro
Isc
-
-
-
-
-
2.2
10
5.0
2.0
1.5
2.5
-
-
-
2.5
V
μ
V/Vo
A
m
A
Io = 5.0mA
-
0.2
-
mV/
°
C