©2002 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.2
Features
• Output Current up to 100mA
• No External Components
• Internal Thermal Over Load Protection
• Internal Short Circuit Current Limiting
• Output Voltage Offered in ±5% Tolerance
• Output Voltage of -5V, -8V, -12V, -15V, -18V
and -24V
Description
These regulators employ internal current limiting and
thermal shutdown, making them essentially indestructible.
TO-92
1.GND 2.Input 3.Output
1
8-SOP
SOT-89
1
1
1. Output 2.3.6.7. Input 5. GND 4.8. NC
Internal Block Diagram
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
Q12
Q13
Q14
Q15
Q16
Q17
R1
R2
R3
R4
R6
R7
R15
R16
R17
R18
R22
R26
R23+R21
R24
R25
R28
R29
R
R5
C1
D1
D2
D3
KA79LXXA
3-Terminal 0.1A Negative Voltage Regulator
AVR 139-141-142/230 Service Manual