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KA7808E 数据表(PDF) 5 Page - Fairchild Semiconductor

部件名 KA7808E
功能描述  3-Terminal 1A Positive Voltage Regulator
Download  29 Pages
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

KA7808E 数据表(HTML) 5 Page - Fairchild Semiconductor

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KA78XXE/KA78XXAE Rev. 1.0.1
Electrical Characteristics (KA7808E/KA7808ER) (Continued)
Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 14V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
Notes:
5. 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.
6. These parameters, although guaranteed, are not 100% tested in production.
Symbol
Parameter
Conditions
KA7808E/ER
Unit
Min.
Typ.
Max.
VO
Output Voltage
TJ = +25°C
7.7
8.0
8.3
V
5.0mA
≤ IO ≤ 1.0A, PO ≤ 15W
VI = 10.5V to 23V
7.6
8.0
8.4
Regline
Line Regulation(5)
TJ = +25°CVI = 10.5V to 25V
5.0
160
mV
VI = 11.5V to 17V
2.0
80
Regload
Load Regulation(5)
TJ = +25°CIO = 5.0mA to 1.5A
10
160
mV
IO = 250mA to 750mA
5.0
80
IQ
Quiescent Current
TJ = +25°C–
5.0
8.0
mA
∆IQ
Quiescent
Current
Change
IO = 5mA to 1.0A
0.05
0.5
mA
VI = 10.5A to 25V
0.5
1.0
∆VO/∆T
Output Voltage Drift(6)
IO = 5mA
-0.8
mV/
°C
VN
Output Noise Voltage
f = 10Hz to 100kHz, TA = +25°C–
52
µV/Vo
RR
Ripple Rejection(6)
f = 120Hz, VI = 11.5V to 21.5V
56
73
dB
VDrop
Dropout Voltage
IO = 1A, TJ = +25°C–
2
V
rO
Output Resistance(6)
f = 1kHz
17
m
ISC
Short Circuit Current
VI = 35V, TA = +25°C–
230
mA
IPK
Peak Current(6)
TJ = +25°C–
2.2
A


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