MC78M08CT Fairchild Semiconductor, MC78M08CT Datasheet - Page 7

• Manufacturer Part Number: MC78M08CT
• Description: Linear Regulators - Standard POS 3Term 0.5a
• Manufacturer: Fairchild Semiconductor

Specifications of MC78M08CT

• Polarity: Positive
• Number Of Outputs: 1
• Output Type: Fixed
• Output Voltage: 8 V
• Output Current: 0.5 A
• Line Regulation: 100 mV
• Load Regulation: 160 mV
• Dropout Voltage (max): 2 V
• Input Voltage Max: 40 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: 0 C
• Package / Case: TO-220
• Mounting Style: Through Hole
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

change in the input voltage. The measurement is made under
conditions of low dissipation or by using pulse techniques
such that the average chip temperature is not significantly
affected.
change in load current at constant chip temperature.
device dissipation for which the regulator will operate
within specifications.
Line Regulation - The change in output voltage for a
Load Regulation - The change in output voltage for a
Maximum Power Dissipation - The maximum total
100
90
80
70
60
50
40
5.0
3.0
2.0
1.0
0.5
0.3
0.2
0.1
Figure 2. DPAK Thermal Resistance and Maximum
10
0
Power Dissipation versus P.C.B. Copper Length
25
q
P
JC
D(max)
Figure 3. Worst Case Power Dissipation
MC78M00, MC78M00A Series
Mounted
Vertically
Free Air
versus Ambient Temperature (TO-220)
= 5°C/W
5.0
q
HS
= 7.52 W
Minimum
Size Pad
50
= 20°C/W
T
A
L, LENGTH OF COPPER (mm)
, AMBIENT TEMPERATURE (°C)
http://onsemi.com
10
DEFINITIONS
75
P
R
D(max)
q
7
15
No Heat Sink
qJA
HS
= 10°C/W
is not delivered to the load.
output, with constant load and no input ripple, measured
over a specified frequency range.
accelerated life test conditions with the maximum rated
voltage listed in the devices' electrical characteristics and
maximum power dissipation.
for T
100
Input Bias Current - That part of the input current that
Output Noise Voltage - The rms AC voltage at the
Long Term Stability - Output voltage stability under
A
= 50°C
20
Î Î Î Î
Î Î Î Î
Î Î Î Î
L
2.0 oz. Copper
125
25
Infinite Heat
Sink
L
30
150
2.4
2.0
1.6
1.2
0.8
0.4
0