MC78M12ACDT ON Semiconductor, MC78M12ACDT Datasheet - Page 7
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MC78M12ACDT
Manufacturer Part Number
MC78M12ACDT
Description
IC REG LDO 500MA 12V DPAK-3
Manufacturer
ON Semiconductor
Datasheet
1.MC78M15CDTRKG.pdf
(18 pages)
Specifications of MC78M12ACDT
Regulator Topology
Positive Fixed
Voltage - Output
12V
Voltage - Input
Up to 35V
Voltage - Dropout (typical)
2V @ 350mA
Number Of Regulators
1
Current - Output
500mA
Operating Temperature
0°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-252-2, DPak (2 Leads + Tab), TO-252AA, SC-63
Polarity
Positive
Number Of Outputs
1
Output Type
Fixed
Output Voltage
12 V
Output Current
0.7 A
Line Regulation
50 mV
Load Regulation
240 mV
Input Voltage Max
35 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Voltage Regulation Accuracy
2 %
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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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
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