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KA7809ETU Datasheet(PDF) 6 Page - Fairchild Semiconductor

No. de pieza KA7809ETU
Descripción Electrónicos  3-Terminal 1 A Positive Voltage Regulator
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

KA7809ETU Datasheet(HTML) 6 Page - Fairchild Semiconductor

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© 2006 Fairchild Semiconductor Corporation
www.fairchildsemi.com
KA78XXE / KA78XXAE Rev. 1.1.1
6
Electrical Characteristics (KA7808E / KA7808ER)
Refer to test circuit, 0
°C < TJ < 125°C, IO = 500 mA, VI = 14 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified.
Notes:
7. 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.
8. These parameters, although guaranteed, are not 100% tested in production.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
TJ = +25°C
7.7
8.0
8.3
V
5.0 mA
≤ IO ≤ 1.0 A, PO ≤ 15 W,
VI = 10.5 V to 23 V
7.6
8.0
8.4
Regline
Line Regulation(7)
TJ = +25°C
VI = 10.5 V to 25 V
5
160
mV
VI = 11.5 V to 17 V
2
80
Regload
Load Regulation(7)
TJ = +25°C
IO = 5.0 mA to 1.5 A
10
160
mV
IO = 250 mA to 750 mA
5
80
IQ
Quiescent Current
TJ = +25°C5
8
mA
ΔIQ
Quiescent Current
Change
IO = 5 mA to 1.0 A
0.05
0.50
mA
VI = 10.5 A to 25 V
0.50
1.00
ΔVO/ΔT
Output Voltage Drift(8)
IO = 5 mA
-0.8
mV/
°C
VN
Output Noise Voltage
f = 10 Hz to 100 kHz, TA = +25°C52
μV/Vo
RR
Ripple Rejection(8)
f = 120 Hz, VI= 11.5 V to 21.5 V
56
73
dB
VDrop
Dropout Voltage
IO = 1 A, TJ = +25°C2
V
RO
Output Resistance(8)
f = 1 kHz
17
m
Ω
ISC
Short-Circuit Current
VI = 35 V, TA = +25°C230
mA
IPK
Peak Current(8)
TJ = +25°C2.2
A


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