MC78M00, MC78M00A
Series
500 mA Positive Voltage
Regulators
The MC78M00/MC78M00A Series positive voltage regulators are
identical to the popular MC7800 Series devices, except that they are
specified for only half the output current. Like the MC7800 devices,
the MC78M00 three−terminal regulators are intended for local,
on−card voltage regulation.
http://onsemi.com
MARKING
DIAGRAMS
Internal current limiting, thermal shutdown circuitry and safe−area
compensation for the internal pass transistor combine to make these
devices remarkably rugged under most operating conditions.
Maximum output current, with adequate heatsinking is 500 mA.
TO−220
T SUFFIX
CASE 221A
MC
78MxxXXT
AWLYWWG
Heatsink surface
connected to Pin 2.
Features
1
2
• No External Components Required
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe−Area Compensation
• MC78M00A High Accuracy ( 2%)
Available for 5.0 V, 8.0 V, 12 V and 15 V
• Pb−Free Packages are Available*
3
xx = Voltage Option
XX = Appropriate Suffix Options
= Assembly Location
WL = Wafer Lot
= Year
WW = Work Week
= Pb−Free Package
A
Y
G
4
xxxxxG
ALYWW
DPAK−3
DT SUFFIX
CASE 369C
Input
1.0 k
1.0 k
210
2
1
3
6.7
V
16 k
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
100
200
300
1.0 k
3.0 k
xxxxx = Device Type and Voltage Option Code
3.6
k
A
L
Y
= Assembly Location
= Wafer Lot
= Year
300
6.4
k
5.6 k
0.24
WW = Work Week
= Pb−Free Package
13
G
50
200
Output
40
pF
Pin 1. Input
2. Ground
3. Output
6.0 k
2.0 k
3.9 k
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10−14 of this data sheet.
6.0
k
2.8 k
GND
DEVICE MARKING INFORMATION
See general marking information in the device marking
This device contains 28 active transistors.
section on page 10 of this data sheet.
Figure 1. Representative Schematic Diagram
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2005
1
Publication Order Number:
November, 2005 − Rev. 16
MC78M00/D