MC78M09BDTRK_11 Datasheet, PDF (1/18 Pages) ON Semiconductor – 500 mA Positive Voltage Regulators

MC78M00, MC78M00A,
NCV78M00 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
• 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
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
• Pb−Free Packages are Available*
1.0 k 1.0 k
Input
210
300
3.6
k
6.4
k
6.7
V ^{16 k}
1.0 k
3.0 k
5.6 k
100
200
300
40
pF
6.0 k
50
200
0.24
13
Output
2.0 k
3.9 k
6.0
2.8 k
k
GND
This device contains 28 active transistors.
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, 2011
1
December, 2011 − Rev. 25
http://onsemi.com
MARKING
DIAGRAMS
1
2
3
TO−220
T SUFFIX
CASE 221AB
Heatsink surface
MC
78MxxXXT
AWLYWWG
connected to Pin 2.
xx = Voltage Option
XX = Appropriate Suffix Options
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
4
DPAK−3
12
3
DT SUFFIX
CASE 369C
xxxxxG
ALYWW
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
xxxxx = Device Type and Voltage Option Code
A = Assembly Location
L = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
Pin 1. Input
2. Ground
3. Output
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10−14 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 10 of this data sheet.
Publication Order Number:
MC78M00/D