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KA7909 Datasheet(Fiches technique) 11 Page - Fairchild Semiconductor

Numéro de pièce KA7909
Description  3-Terminal 1A Negative Voltage Regulator
Télécharger  18 Pages
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Fabricant  FAIRCHILD [Fairchild Semiconductor]
Site Internet  http://www.fairchildsemi.com
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 11 page
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KA79XX/KA79XXA
11
Electrical Characteristics (KA7905A) (Continued)
(VI = -10V, IO = 500mA, 0
°C ≤TJ ≤ +125°C, CI =2.2µF, CO =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
Conditions
Min.
Typ.
Max.
Unit
Output Voltage
VO
TJ = +25
°C
-4.9
-5.0
-5.1
V
IO = 5mA to 1A, PO
≤ 15W
VI = -7V to -20V
-4.8
-5.0
-5.2
Line Regulation (Note1)
∆VO
TJ = +25
°C
VI = -7V to -20V
IO = 1A
-5
50
mV
VI = -8V to -12V
IO = 1A
-2
25
VI = -7.5V to -25V
-
7
50
VI = -8V to -12V, IO=1A
-
7
50
Load Regulation (Note1)
∆VO
IO = 5mA to 1.5A
TJ = +25
°C
-
10
100
mV
TJ =+25
°C, IO = 250mA to 750mA
-
3
50
Quiescent Current
IQ
TJ =+25
°C-
3
6
mA
Quiescent Current Change
∆IQ
IO = 5mA to 1A
-
0.05
0.5
mA
VI = -8V to -25V
-
0.1
0.8
Temperature Coefficient of VD
∆Vo/∆TIO = 5mA
-
-0.4
-
mV/
°C
Output Noise Voltage
VN
f = 10Hz to 100kHz, TA =+25
°C-
40
-
µV
Ripple Rejection
RR
f = 120Hz,
∆VI = 10V
54
60
-
dB
Dropout Voltage
VD
TJ = +25
°C, IO = 1A
-
2
-
V
Short Circuit Current
ISC
TJ = +25
°C, VI = -35V
-
300
-
mA
Peak Current
IPK
TJ = +25
°C-
2.2
-
A




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