MC79M00 Datasheet, PDF (1/8 Pages) Motorola, Inc – THREE-TERMINAL NEGATIVE FIXED VOLTAGE REGULATORS

MC79M00 Series
500 mA Negative Voltage
Regulators
The MC79M00 series of fixed output negative voltage regulators
are intended as complements to the popular MC78M00 series devices.
Available in fixed output voltage options of −5.0 V, −8.0 V, −12 V
and −15 V, these regulators employ current limiting, thermal
shutdown, and safe−area compensation, making them remarkably
rugged under most operating conditions. With adequate heatsinking
they can deliver output currents in excess of 0.5 A.
• No External Components Required
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe−Area Compensation
• Also Available in Surface Mount DPAK (DT) Package
• Pb−Free Packages are Available
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE
Device
Nominal Output Voltage
MC79M05
MC79M08
MC79M12
MC79M15
−5.0 V
−8.0 V
−12 V
−15 V
GND
http://onsemi.com
THREE−TERMINAL
NEGATIVE FIXED
VOLTAGE REGULATORS
STANDARD APPLICATION
Input
C_in*
0.33 mF
MC79MXX
Output
C_O**
1.0 mF
A common ground is required between the input
and the output voltages. The input voltage must
remain typically 1.1 V more negative even during
the high point of the input ripple voltage.
XX These two digits of the type number indicate
nominal voltage.
* C_in is required if regulator is located an
appreciable distance from power supply filter.
** C_O improve stability and transient response.
MARKING
DIAGRAMS
4.0 k R1
R2
10 k
V_O
20 pF
10 pF 10 k
2.0 k
1.1 k
20 k 20 k
240
100
0.3
750
This device contains 31 active transistors.
V_I
Figure 1. Representative Schematic Diagram
© Semiconductor Components Industries, LLC, 2006
1
August, 2006 − Rev. 11
1
2
3
Pin 1. Ground
2. Input
3. Output
TO−220−3
T SUFFIX
CASE 221AB
MC
79MxxyT
AWLYWWG
4
12
3
DPAK−3
DT SUFFIX
CASE 369C
9MxxBG
ALYWW
79MxxG
ALYWW
xx
y
A
WL, L
Y
WW
G
= 05, 08, 12, or 15
= B or C
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Device
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
Publication Order Number:
MC79M00/D