MC78M00 Datasheet, PDF (1/12 Pages) Motorola, Inc – THREE-TERMINAL MEDIUM CURRENT POSITIVE FIXED VOLTAGE REGULATORS

Three-Terminal
Medium Current 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.
• 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
• Previous Commerical Temperature Range has been extended to a
Junction Temperature Range of –40°C to +125°C
Representative Schematic Diagram
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
Order this document by MC78M00/D
MC78M00
MC78M00A
Series
THREE–TERMINAL MEDIUM
CURRENT POSITIVE FIXED
VOLTAGE REGULATORS
SEMICONDUCTOR
TECHNICAL DATA
T SUFFIX
PLASTIC PACKAGE
CASE 221A
(TO–220)
Heatsink surface
connected to Pin 2.
1
2
3
Pin 1. Input
2. Ground
3. Output
1
3
DT SUFFIX
PLASTIC PACKAGE
CASE 369A
(DPAK)
12 ₃
DT–1 SUFFIX
PLASTIC PACKAGE
CASE 369
(DPAK)
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
6.0
2.8 k
k
Gnd
This device contains 28 active transistors.
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE
MC78M05AC
MC78M05C
MC78M06C
MC78M08AC
MC78M08C
5.0 V
5.0 V
6.0 V
8.0 V
8.0 V
MC78M09C
MC78M12AC
MC78M12C
MC78M15AC
MC78M15C
9.0 V
12 V
12 V
15 V
15 V
MC78M18C
MC78M20C
MC78M24C
18 V
20 V
24 V
MOTOROLA ANALOG IC DEVICE DATA
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC78MXXCDT
MC78MXXACDT*
MC78MXXCT
MC78MXXACT*
TJ = – 40° to +125°C
DPAK
TO–220
XX Indicates nominal voltage.
* Available in 5.0, 8.0, 12 and 15 V devices.
© Motorola, Inc. 1997
Rev 6
1