3-Terminal 0.1A Negative Voltage Regulator - Harman Kardon AVR 139/230 Service Manual

harman/kardon
KA79LXXA

3-Terminal 0.1A Negative Voltage Regulator

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
Internal Block Diagram
©2002 Fairchild Semiconductor Corporation
Q10
Q11
R22
Q5
R23+R21
D3
D2
R18
Q15
Q17
Q14
Q16 Q13
R28
R25
R24
R7
R29
Description
These regulators employ internal current limiting and
thermal shutdown, making them essentially indestructible.
TO-92
1
1.GND 2.Input 3.Output
8-SOP
1
1. Output 2.3.6.7. Input 5. GND 4.8. NC
R26
Q12
Q6 Q7
Q4
D1
R6
C1
R1
R17
Q9
Q8 Q1
R3
R2
R16
AVR 139-141-142/230 Service Manual
www.fairchildsemi.com
SOT-89
1
R15
R
Q2 Q3
R5
R4
Rev. 1.0.2
Page 48 of 83