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KA7912 数据表(PDF) 5 Page - Fairchild Semiconductor

部件名 KA7912
功能描述  FIXED VOLTAGE REGULATOR (NEGATIVE)
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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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MC79XX (LM79XX) (KA79XX/A)
FIXED VOLTAGE REGULATOR (NEGATIVE)
LM7909 ELECTRICAL CHARACTERISTICS
(VI = 14V, lO = 500mA, 0
°C ≤T
J
≤+ 125°C, C
I =2.2
µF, C
O = 1
µF, unless otherwise specified)
* 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.
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
TJ =+ 25
°C
- 8.7
- 9.0
- 9.3
Output Voltage
VO
IO = 5mA to 1A, PO 15W
VI = -1.5 to -23V
- 8.6
- 9.0
- 9.4
V
VI = -10.5 to -25V
10
180
VI= -11 to -17V
5
90
TJ =+ 25
°C
IO = 5mA to 1.5A
12
180
TJ =+ 25
°C
IO = 250 to 750mA
4
90
Quiescent Current
IQ
TJ =+ 25
°C
3
6
mA
IO = 5mA to 1A
0.05
0.5
VI = -11.5 to -25V
0.1
1
Temperature Coefficient of VD
∆V
O/
∆T
IO = 5mA
-0.6
mV/
°C
Output Noise Voltage
VN
f = 10Hz to 100KHz
TA =+ 25
°C
175
µV
Ripple Rejection
RR
f = 120Hz
∆V
I = 10V
54
60
dB
Dropout Voltage
VD
TJ=+ 25
°C
IO = 1A
2
V
Short Circuit Current
ISC
TJ= +25
°C, V
I = -35V
300
mA
Peak Current
IPK
TJ =+25
°C
2.2
A
Line Regulation
∆V
O
Load Regulation
∆V
O
mV
mV
TJ = 25
°C
Quiescent Current Change
∆I
Q
mA


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