Order this document by MC79L00/D
THREE–TERMINAL LOW
CURRENT NEGATIVE FIXED
VOLTAGE REGULATORS
The MC79L00, A Series negative voltage regulators are inexpensive,
easy–to–use devices suitable for numerous applications requiring up to100
mA. Like the higher powered MC7900 Series negative regulators, this series
features thermal shutdown and current limiting, making them remarkably
rugged. In most applications, no external components are required for
operation.
The MC79L00 devices are useful for on–card regulation or any other
application where a regulated negative voltage at a modest current level is
needed. These regulators offer substantial advantage over the common
resistor/zener diode approach.
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX
PLASTIC PACKAGE
CASE 29
• No External Components Required
• Internal Short Circuit Current Limiting
• Internal Thermal Overload Protection
• Low Cost
• Complementary Positive Regulators Offered (MC78L00 Series)
• Available in Either ±5% (AC) or ±10% (C) Selections
Pin 1. Ground
2. Input
3. Output
1
2
3
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SOP–8)*
8
1
Pin 1. V
2. V
5. GND
out
in
6. V
7. V
in
in
3. V
in
4. NC
8. NC
* SOP–8 is an internally modified SO–8 package.
Pins 2, 3, 6, and 7 are electrically common to the
die attach flag. This internal lead frame modifica-
tion decreases package thermal resistance and
increases power dissipation capability when
appropriately mounted on a printed circuit board.
SOP–8 conforms to all external dimensions of the
standard SO–8 package.
Representative Schematic Diagram
Gnd
R8
R6
R
5
Q10
Q5
R9
Device No.
Device No.
5%
Nominal
Voltage
R17
R16
R18
Q4
R1
±10%
MC79L05C
MC79L12C
MC79L15C
MC79L18C
MC79L24C
MC79L05AC
MC79L12AC
MC79L15AC
MC79L18AC
MC79L24AC
–5.0
–12
–15
–18
–24
R7
R4
Q8
Q14
Q9
Q1
Output
Q13
ORDERING INFORMATION
Q12
R2
Operating
Temperature Range
Z1
R3
C
Q2
Device
Package
Q7
Q11
Q6
MC79LXXACD*
MC79LXXACP
MC79LXXCP
SOP–8
R10 R11
R14
R15
Plastic Power
Plastic Power
SOP–8
T
= 0° to +125°C
J
Input
MC79LXXABD*
MC79LXXABP*
T
= –40° to +125°C
J
* Automotive temperature range selections are available with special test conditions
* and additional tests in 5, 12 and 15 V devices. Contact your local Motorola sales
* office for information.
Plastic Power
XX indicates nominal voltage
Motorola, Inc. 1996
Rev 2
1
MOTOROLA ANALOG IC DEVICE DATA