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KA7808ETU 数据表(PDF) 10 Page - Fairchild Semiconductor

部件名 KA7808ETU
功能描述  3-Terminal 1A Positive Voltage Regulator
Download  26 Pages
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

KA7808ETU 数据表(HTML) 10 Page - Fairchild Semiconductor

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KA78XXE/KA78XXAE Rev. 1.0.5
Electrical Characteristics (KA7818E) (Continued)
Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 27V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
Notes:
15. 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.
16. These parameters, although guaranteed, are not 100% tested in production.
Symbol
Parameter
Conditions
KA7818E
Unit
Min.
Typ. Max.
VO
Output Voltage
TJ = +25°C
17.3
18
18.7
V
5.0mA
≤ IO ≤ 1.0A, PO ≤ 15W
VI = 21V to 33V
17.1
18
18.9
Regline
Line Regulation(15)
TJ = +25°CVI = 21V to 33V
15
360
mV
VI = 24V to 30V
5
180
Regload
Load Regulation(15)
TJ = +25°CIO = 5mA to 1.5A
15
360
mV
IO = 250mA to 750mA
5.0
180
IQ
Quiescent Current
TJ = +25°C–
5.2
8.0
mA
∆IQ
Quiescent Current Change
IO = 5mA to 1.0A
0.5
mA
VI = 21V to 33V
1
∆VO/∆T
Output Voltage Drift(16)
IO = 5mA
-1
mV/
°C
VN
Output Noise Voltage
f = 10Hz to 100kHz, TA = +25°C–
110
µV/Vo
RR
Ripple Rejection(16)
f = 120Hz
VI = 22V to 32V
53
69
dB
VDrop
Dropout Voltage
IO = 1A, TJ = +25°C
2
V
rO
Output Resistance(16)
f = 1kHz
22
m
ISC
Short Circuit Current
VI = 35V, TA = +25°C–
250
mA
IPK
Peak Current(16)
TJ = +25°C–
2.2
A


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