MC78TXX Datasheet, PDF (4/8 Pages) Fairchild Semiconductor – 3-Terminal 3A Positive Voltage Regulator

MC78TXX
Electrical Characteristics(MC78T15) (Continued)
(VI = 23V, IO = 3.0 A, 0°C ≤ TJ ≤ +125°C, Po ≤ PMAX (Note1), unless otherwise specified. )
Parameter
Output Voltage
Symbol
Vo
Line Regulation (Note2)
∆VO
Load Regulation (Note2)
Thermal Regulation
∆VO
REGT
Quiescent Current
IQ
∆IQ
Quiescent Current Change
Ripple Rejection
RR
Dropout Voltage
VD
Output Noise Voltage
VN
Peak Output Current
IPK
Output Resistance
Ro
Short Circuit Current Limit
Isc
Average Temperature
Coefficient of Output Voltage
∆VO/∆T
Conditions
Min.
5mA ≤ Io ≤ 3.0A, TJ =+25°C
17.5V ≤ VI ≤ 30V, 5mA ≤ Io ≤ 2.0A
14.4
14.25
17.6V ≤ VI ≤ 40V, Io=5mA, TJ =+25°C
17.6V ≤ VI ≤ 40V, Io=1.0A, TJ =+25°C
18V ≤ VI ≤ 30V, Io =2.0A, TJ =+25°C
-
20V ≤ VI ≤ 26V, Io =3.0A, TJ =+25°C
5mA ≤ Io ≤ 3.0A, TJ =+25°C
5mA ≤ Io ≤ 3.0A
-
Pulse =10ms, P = 20W
TA = +25°C
-
5mA ≤ Io ≤ 3.0A, TJ =+25°C
5mA ≤ Io ≤ 3.0A
-
17.6V ≤ VI ≤ 40V, Io = 5mA
TJ =+25°C ;
18V ≤ VI ≤ 30V, Io =2.0A ;
-
5mA ≤ Io ≤ 3.0A, TJ =+25°C
f = 120Hz, 18.5V ≤ VI ≤ 28.5V, Io = 2.0A
TJ =+25°C
-
Io = 3A ,TJ = +25°C
-
TA = +25°C, 10Hz ≤ f ≤ 100kHz
-
TA = +25°C
-
f = 1.0kHz
-
VI = 40V, TJ = +25°C
-
Io = 5.0mA
-
Typ.
15
15
7.5
10
15
0.002
3.5
4.0
0.1
65
2.2
10
5.0
2.0
1.0
0.5
Max.
15.6
15.75
55
30
80
0.03
5.0
6.0
0.8
-
2.5
-
-
-
2.0
-
Unit
V
mV
mV
mV
%Vo/W
mA
mA
mA
dB
V
µV/Vo
A
mΩ
A
mV/°C
Note:
1. Although power dissipation is internally limited, specifications apply only for PO ≤ Pmax, Pmax = 25W
2. 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. ( PMAX = 25W)
4