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KA278RXXC Datasheet(PDF) 3 Page - Fairchild Semiconductor

Part No. KA278RXXC
Description  2A Output Low Dropout Voltage Regulators
Download  20 Pages
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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KA278RXXC Datasheet(HTML) 3 Page - Fairchild Semiconductor

 
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KA278RXXC-SERIES
3
Electrical Characteristics
(Vin=Note3, Io=1.0A, Ta=25
°C , unless otherwise specified)
Note:
1.These parameters, although guaranteed, are not 100% tested in production.
2. Junction -to -case thermal resistance test environments.
-. Pneumatic heat sink fixture.
-. Clamping pressure 60psi through 12mm diameter cylinder.
-. Thermal grease applied between PKG and heat sink fixture.
3. KA278R33C : Vin = 5V
KA278R05C : Vin = 7V
KA278R09C : Vin = 11V
KA278R12C : Vin = 15V
4. KA278R33C : Vin =4 to 10V
KA278R05C, KA278R51C : Vin=6 to 12V
KA278R09C : Vin=10 to 25V
KA278R12C : Vin = 13V to 29V
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Output voltage
KA278R33C
Vo
-
3.22
3.3
3.38
V
KA278R05C
-
4.88
5
5.12
KA278R51C
-
4.98
5.1
5.22
KA278R09C
-
8.78
9
9.22
KA278R12C
-
11.7
12
12.3
Load regulation
Rload
5mA < Io < 2A
-
0.1
2.0
%
Line regulation
Rline
Note4
-
0.5
2.5
%
Ripple rejection ratio
RR
Note1
45
55
-
dB
Dropout voltage
Vdrop
Io = 2A
-
-
0.5
V
Disable voltage high
KA278RXXC
VdisH
Output active
2.0
-
-
V
Disable voltage low
KA278RXXC
VdisL
Output disabled
-
-
0.8
V
Disable bias current high KA278RXXC
IdisH
Vdis = 2.7V
-
-
20
µA
Disable bias current low
KA278RXXC
IdisL
Vdis = 0.4V
-
-
-0.4
mA
Quiescent current
Iq
Io = 0A
-
-
10
mA
Reference voltage
KA278RA05C
Vref
-
1.24
1.27
1.30
V


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