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.
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.
Features
http://onsemi.com
MARKING
DIAGRAMS
TO−220
T SUFFIX
CASE 221AB
Heatsink surface
connected to Pin 2.
1
2
3
xx
XX
A
WL
Y
WW
G
4
1.0 k
1.0 k
210
6.7
V 16 k
300
3.6
k
6.4
k
5.6 k
1.0 k
3.0 k
10 pF
Input
MC
78MxxXXT
AWLYWWG
•
•
•
•
•
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*
= Voltage Option
= Appropriate Suffix Options
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
1 2
3
100
200
DPAK−3
DT SUFFIX
CASE 369C
xxxxxG
ALYWW
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
xxxxx
A
L
Y
WW
G
= Device Type and Voltage Option Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
Pin 1. Input
2. Ground
3. Output
300
0.24
13
50
200
520
Output
2.0 k
3.9 k
2.6 k
6.0 k
40
pF
ORDERING INFORMATION
6.0
k
2.8 k
GND
See detailed ordering and shipping information in the package
dimensions section on page 10−14 of this data sheet.
This device contains 28 active transistors.
DEVICE MARKING INFORMATION
See general marking information in the device marking
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, 2006
1
August, 2006 − Rev. 18
Publication Order Number:
MC78M00/D
ONSEMI [ ON SEMICONDUCTOR ]
