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KA7912 数据表(PDF) 5 Page - Fairchild Semiconductor

部件名 KA7912
功能描述  3-Terminal 1A Negative Voltage Regulator
Download  18 Pages
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

KA7912 数据表(HTML) 5 Page - Fairchild Semiconductor

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KA79XX/KA79XXA
5
Electrical Characteristics (KA7909) (Continued)
(VI = -15V, 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
-8.7
-9.0
-9.3
V
IO = 5mA to 1A, PO
≤ 15W
VI = -1.5V to -23V
-8.6
-9.0
-9.4
Line Regulation (Note1)
∆VO
TJ =+25
°C
VI = -11.5V to -26V
-
10
180
mV
VI = -12V to -18V
-
5
90
Load Regulation (Note1)
∆VO
TJ =+25
°C, IO = 5mA to 1.5A
-
12
180
mV
TJ =+25
°C, IO = 250mA to 750mA
-
4
90
Quiescent Current
IQ
TJ = +25
°C-
3
6
mA
Quiescent Current Change
∆IQ
IO = 5mA to 1A
-
0.05
0.5
mA
VI = -11.5V to -26V
-
0.1
1
Temperature Coefficient of VD
∆Vo/∆TIO = 5mA
-
-0.6
-
mV/
°C
Output Noise Voltage
VN
f = 10Hz to 100kHz, TA = +25
°C
-
175
-
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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