©2011 Fairchild Semiconductor Corporation

www.fairchildsemi.com

Rev. 1.0.1

Features

• No External Components Required

• Output Current in Excess of 0.5A

• Internal Thermal Overload

• Internal Short Circuit Current Limiting

• Output Transistor Safe Area Compensation

• Output Voltages of -5V,-6V,-8V, -12V,-15V,-18V,-24V

Description

The KA79MXX series of 3-Terminal medium current

negative voltage regulators are monolithic integrated circuits

designed as fixed voltage regulators. These regulators

employ internal current limiting, thermal shutdown and

safe area compensation making them essentially

indestructible.

TO-220

D-PAK

1. GND 2. Input 3. Output

1

1

Schematic Diagram

Q1

Q2

Q3

Q4

Q5

Q6

Q7

Q8

Q9

Q10

Q11

Q12

Q13

Q14

Q15

Q16

Q17

Q18

Q19

Q20

Q21 Q22

Q23

Q24 Q25

Q26

Q27

R1

R2

R3

R4

R5

R6

R7

R8

R9

R10 R11

R12

R13

R15

R14

R16

R17

R18

R19

R20

R21

R22

R23

R24

R25

D1

D2

D3

D4

D5

C1

C2

GND

OUT

IN

KA79MXX

3-Terminal 0.5A Negative Voltage Regulator