KA79M05RTF Datasheet, PDF (1/8 Pages) Fairchild Semiconductor – 3-Terminal 0.5A Negative Voltage Regulator

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KA79MXX
3-Terminal 0.5A Negative Voltage Regulator
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, -12V
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 (Dual Gauge)
1
D-PAK
1
1. GND 2. Input 3. Output
Schematic Diagram
R2
R6
R9
R10 _R11
Q8
Q13 Q15
D1
D2 ^R1
D3
Q12
R3
Q9 ^{Q10 Q11 R8}
R12
Q14
Q16
R13
R4
R5 _R7
D5
Q2 Q3
Q18
Q17
Q24 Q25
GND
R14
R15
R16
Q5
Q1
Q4 Q6
Q7
R24
OUT
R17
D4
C1
C2
Q19
R25
Q20
R19
R18
Q21 _Q22
Q23
Q26
R20 _R22 ^Q27
R21
R23
IN
©2012 Fairchild Semiconductor Corporation
Rev. 1.0.3