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Fairchild Semiconductor Electronic Components Datasheet

MC79MXX Datasheet

3-Terminal 0.5A Negative Voltage Regulator

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MC79MXX pdf
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MC79MXX
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,-6V,-8V,-12V,-15V,-18Vand -24V
Description
The MC79MXX 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
1
1. GND 2. Input 3. Output
Schematic Diagram
©2001 Fairchild Semiconductor Corporation
Rev. 1.0.0


Fairchild Semiconductor Electronic Components Datasheet

MC79MXX Datasheet

3-Terminal 0.5A Negative Voltage Regulator

No Preview Available !

MC79MXX pdf
MC79MXX
Absolute Maximum Ratings
Parameter
Input Voltage(for VO = -5V to -18V)
(for VO = -24V)
Thermal Resistance Junction-Cases
Thermal Resistance Junction-Air
Operating Temperature Range
Storage Temperature Range
Symbol
VI
VI
RθJC
RθJA
TOPR
TSTG
Value
-35
-40
5
65
0 ~ +125
-65 ~ +125
Unit
V
V
°C /W
°C /W
°C
°C
Electrical Characteristics (MC79M05)
(Refer to test circuit, 0 °C TJ +125 °C, lO =350mA, VI = -10V,unless otherwise specified, CI =0.33µF,CO=0.1µF)
Parameter
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
Symbol
VO
VO
VO
IQ
IQ
Vo/T
VN
RR
VD
ISC
IPK
Conditions
TJ= +25 °C
IO = 5mA to 350mA
VI = -7V to -25V
TJ =+25°C
VI = -7V to -25V
VI = -8V to -25V
IO = 5mA to 500mA
TJ = +25 °C
TJ= +25 °C
IO = 5mA to 350mA
IO = 200mA
VI = -8V to -25V
IO = 5mA
f = 10Hz, 100KHz
TA = +25 °C
f = 120Hz
VJ= -8 to -18V
TJ =+25 °C, IO = 500mA
TJ= +25 °C, VI = -35V
TJ= +25 °C
Min.
-4.8
-4.75
-
-
-
-
-
-
-
-
54
-
-
-
Typ.
-5
-5
7.0
2.0
30
3.0
-
-
-0.2
40
60
1.1
140
650
Max.
-5.2
-5.25
Unit
V
50
mV
30
100 mV
6.0 mA
0.4
mA
0.4
- mV/ °C
- µV
- dB
-V
- mA
- mA
Note:
1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
2


Part Number MC79MXX
Description 3-Terminal 0.5A Negative Voltage Regulator
Maker Fairchild
Total Page 14 Pages
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