100 mA Negative 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.

Representative Schematic Diagram

*Automotive temperature range selections are available with special test conditions

and additional tests in 5, 12 and 15 V devices. Contact your local ON Semiconductor

sales office for information.

R1

R2

Z1

R3

R

5

R18

Q1

R6

Q4

R7

R4

R8

Q5

Q10

Q8

R9

Q14

Q9

C

Q6

R10 R11

Q7

Q2

Q11

R14

R15

Q13

Q12

R16

R17

Gnd

Output

Input

ON Semiconductort

© Semiconductor Components Industries, LLC, 2002

January, 2002 – Rev. 4

1

Publication Order Number:

MC79L00/D

MC79L00,

MC79L00A Series

THREE–TERMINAL LOW

CURRENT NEGATIVE FIXED

VOLTAGE REGULATORS

ORDERING INFORMATION

P SUFFIX

PLASTIC PACKAGE

CASE 29

Pin 1. Ground

2. Input

3. Output

3

1

2

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SOP–8)*

1

8

4. NC

5. GND

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.

Device No.

±10%

MC79L05C

MC79L12C

MC79L15C

MC79L18C

MC79L24C

Device No.

5%

Nominal

Voltage

MC79L05AC

MC79L12AC

MC79L15AC

MC79L18AC

MC79L24AC

–5.0

–12

–15

–18

–24

Device

Operating

Temperature Range

Package

MC79LXXACD*

SOP–8

Plastic Power

MC79LXXACP

Plastic Power

MC79LXXCP

MC79LXXABD*

MC79LXXABP*

SOP–8

Plastic Power

XX indicates nominal voltage

SEMICONDUCTOR

TECHNICAL DATA