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MC78XX Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. MC78XX
Description  3-Terminal 1A Positive Voltage Regulator
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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MC78XX Datasheet(HTML) 2 Page - Fairchild Semiconductor

 
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MC78XX/LM78XX/MC78XXA
2
Absolute Maximum Ratings
Electrical Characteristics (MC7805/LM7805)
(Refer to test circuit ,0
°C < TJ < 125°C, IO = 500mA, VI = 10V, CI= 0.33µF, CO= 0.1µF, unless otherwise specified)
Note:
1. Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
Parameter
Symbol
Value
Unit
Input Voltage (for VO = 5V to 18V)
(for VO = 24V)
VI
VI
35
40
V
V
Thermal Resistance Junction-Cases (TO-220)
R
θJC
5
oC/W
Thermal Resistance Junction-Air (TO-220)
R
θJA
65
oC/W
Operating Temperature Range
TOPR
0 ~ +125
oC
Storage Temperature Range
TSTG
-65 ~ +150
oC
Parameter
Symbol
Conditions
MC7805/LM7805
Unit
Min.
Typ.
Max.
Output Voltage
VO
TJ =+25
oC
4.8
5.0
5.2
5.0mA ≤ Io ≤ 1.0A, PO ≤ 15W
VI = 7V to 20V
4.75
5.0
5.25
V
Line Regulation (Note1)
Regline
TJ=+25
oC
VO = 7V to 25V
-
4.0
100
mV
VI = 8V to 12V
-
1.6
50
Load Regulation (Note1)
Regload
TJ=+25
oC
IO = 5.0mA to1.5A
-
9
100
mV
IO =250mA to
750mA
-4
50
Quiescent Current
IQ
TJ =+25
oC-
5.0
8.0
mA
Quiescent Current Change
∆IQ
IO = 5mA to 1.0A
-
0.03
0.5
mA
VI= 7V to 25V
-
0.3
1.3
Output Voltage Drift
∆VO/∆TIO= 5mA
-
-0.8
-
mV/ oC
Output Noise Voltage
VN
f = 10Hz to 100KHz, TA=+25
oC-
42
-
µV/Vo
Ripple Rejection
RR
f = 120Hz
VO = 8V to 18V
62
73
-
dB
Dropout Voltage
VDrop
IO = 1A, TJ =+25
oC-
2
-
V
Output Resistance
rO
f = 1KHz
-
15
-
m
Short Circuit Current
ISC
VI = 35V, TA =+25
oC
-
230
-
mA
Peak Current
IPK
TJ =+25
oC-
2.2
-
A


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