MC78T05CT 데이터 시트보기 (PDF) - Fairchild Semiconductor
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MC78T05CT Datasheet PDF : 8 Pages
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MC78TXX
Absolute Maximum Ratings
Parameter
Input Voltage (for VO = 5V to 12V)
(for VO = 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
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.
Symbol
VI
PD
RθJA
RθJC
TJ
TSTG
Value
35
40
Internally limited
65
2.5
0 ~ +125
-65 ~ +150
Unit
V
V
°C/W
°C/W
°C
°C
Electrical Characteristics(MC78T05)
(VI = 10V, IO = 3.0 A, 0°C ≤ TJ ≤ +125°C, Po ≤ PMAX (Note3), unless otherwise specified. )
Parameter
Symbol
Conditions
Output Voltage
Vo
5mA ≤ Io ≤ 3.0A , TJ = +25°C
7.3V ≤ VI ≤ 20V, 5mA ≤ Io ≤ 2.0A
Line Regulation (Note4)
∆VO
7.2V ≤ VI ≤ 35V , Io=5mA, TJ =+25°C
7.2V ≤ VI ≤ 35V , Io=1.0A, TJ = +25°C
7.5V ≤ VI ≤ 20V, Io =2.0A, TJ = +25°C
8.0V ≤ VI ≤ 12V, Io =3.0A, TJ = +25°C
Load Regulation (Note4)
∆VO
5mA ≤ Io ≤ 3.0A , TJ = +25°C
5mA ≤ Io ≤ 3.0A
Thermal Regulation
REGT
Pulse =10ms, P = 20W
TA = +25°C
Quiescent Current
IQ
5mA ≤ Io ≤ 3.0A , TJ = +25°C
5mA ≤ Io ≤ 3.0A
Quiescent Current Change
7.2V ≤ VI ≤ 35V, Io = 5mA
∆IQ
TJ = +25°C ;
7.5V ≤ VI ≤ 20V, Io =2.0A ;
5mA ≤ Io ≤ 3.0A, TJ = +25°C
Ripple Rejection
RR
f = 120Hz, 8V ≤ VI ≤ 18V, Io = 2.0A
TJ = +25°C
Dropout Voltage
VD Io = 3A ,TJ = +25°C
Output Noise Voltage
VN TA = +25°C, 10Hz ≤ f ≤ 100kHz
Peak Output Current
IPK TA = +25°C
Output Resistance
Ro f = 1.0kHz
Short Circuit Current Limit
Isc VI = 35V, TJ =+25°C
Average Temperature
Coefficient of Output Voltage
∆VO/∆T
Io = 5.0mA
Min. Typ. Max. Unit
4.8 5.0 5.2
4.75 5.0 5.25
V
-
3.0 25
mV
-
10 30
15 80
mV
mV
- 0.002 0.03 %Vo/W
-
3.5 5.0 mA
4.0 6.0 mA
-
0.1 0.8 mA
-
75
-
dB
-
2.2 2.5
V
-
10
- µV/Vo
-
5.0
-
A
-
2.0
-
mΩ
-
1.5 2.5
A
-
0.2
- mV/°C
Note:
3. Although power dissipation is internally limited, specifications apply only for PO ≤ 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.
2
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