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L7809AC Datasheet(PDF) 9 Page - STMicroelectronics

Part # L7809AC
Description  Positive voltage regulator ICs
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L7809AC Datasheet(HTML) 9 Page - STMicroelectronics

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DocID2143 Rev 31
9/57
L78xx, L78xxC, L78xxAB, L78xxAC
Electrical characteristics
5
Electrical characteristics
Refer to the test circuits, TJ = -55 to 150 °C, VI = 10 V, IO = 500 mA, CI = 0.33 µF,
CO = 0.1 µF unless otherwise specified.
Table 4. Electrical characteristics of L7805
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25°C
4.8
5
5.2
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 8 to 20 V
4.65
5
5.35
V
V
O
(1)
Line regulation
VI = 7 to 25 V, TJ = 25°C
3
50
mV
VI = 8 to 12 V, TJ = 25°C
1
25
V
O
(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25°C
100
mV
IO = 250 to 750 mA, TJ = 25°C
25
Id
Quiescent current
TJ = 25°C
6
mA
I
d
Quiescent current change
IO = 5 mA to 1 A
0.5
mA
VI = 8 to 25 V
0.8
V
O/T
Output voltage drift
IO = 5 mA
0.6
mV/°C
eN
Output noise voltage
B =10 Hz to 100 kHz, TJ = 25°C
40
µV/VO
SVR
Supply voltage rejection
VI = 8 to 18 V, f = 120 Hz
68
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25°C
2
2.5
V
RO
Output resistance
f = 1 kHz
17
m
Isc
Short circuit current
VI = 35 V, TJ = 25°C
0.75
1.2
A
Iscp
Short circuit peak current
TJ = 25°C
1.3
2.2
3.3
A
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 cycle is used.


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