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KA7912A Folha de dados(PDF) 6 Page - Fairchild Semiconductor

Nome de Peças KA7912A
Descrição Electrónicos  3-Terminal 1A Negative Voltage Regulator
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Fabricante Electrônico  FAIRCHILD [Fairchild Semiconductor]
Página de início  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

KA7912A Folha de dados(HTML) 6 Page - Fairchild Semiconductor

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KA79XX/KA79XXA
6
Electrical Characteristics (KA7912) (Continued)
(VI = -19V, 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
-11.5
-12
-12.5
V
IO = 5mA to 1A, PO ≤ 15W
VI = -15.5V to -27V
-11.4
-12
-12.6
Line Regulation (Note1)
ΔVO
TJ = +25°C
VI = -14.5V to -30V
-
12
240
mV
VI = -16V to -22V
-
6
120
Load Regulation (Note1)
ΔVO
TJ = +25°C, IO = 5mA to 1.5A
-
12
240
mV
TJ =+25°C, IO = 250mA to 750mA
-
4
120
Quiescent Current
IQ
TJ =+25°C-
3
6
mA
Quiescent Current Change
ΔIQ
IO = 5mA to 1A
-
0.05
0.5
mA
VI = -14.5V to -30V
-
0.1
1
Temperature Coefficient of VD ΔVo/ΔTIO = 5mA
-
-0.8
-
mV/
°C
Output Noise Voltage
VN
f = 10Hz to 100kHz, TA =+25°C
-
200
-
μV
Ripple Rejection
RR
f = 120Hz,
ΔVI = 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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