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KA378R12 Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part # KA378R12
Description  Low Dropout Voltage Regulator
Download  8 Pages
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

KA378R12 Datasheet(HTML) 2 Page - Fairchild Semiconductor

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KA378R12
2
Absolute Maximum Ratings
Electrical Characteristics
(Vin = 15V, Io = 1.5A, 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
Parameter
Symbol
Value
Unit
Remark
Input Voltage
Vin
35
V
-
Disable Voltage
Vdis
35
V
-
Output Current
Io
3.0
A
-
Power Dissipation 1
Pd1
1.5
W
No Heatsink
Power Dissipation 2
Pd2
15
W
With Heatsink
Junction Temperature
Tj
150
°C-
Operating Temperature
Topr
-20 ~ 80
°C-
Thermal Resistance, Junction-to Case(Note2)
R
θjc
2.9
°C/W
-
Thermal Shutdown Temperature
Ttsd
150
°C-
Storage Temperature
Tstg
-65 ~ 150
°C-
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Output Voltage
Vo
-
11.7
12.0
12.3
V
Load Regulation
Rload
5mA < Io < 3A
-
0.1
2.0
%
Line Regulation
Rline
13V < Vin < 29V
-
0.5
2.5
%
Ripple Rejection Ratio
RR
Note1
45
55
-
dB
Dropout Voltage
Vdrop
Io = 3A
-
-
0.5
V
Disable Voltage High
VdisH
Output Active
2.0
-
-
V
Disable Voltage Low
VdisL
Output Disabled
-
-
0.8
V
Disable Bias Current High
IdisH
Vdis = 2.7V
-
-
20
µA
Disable Bias Current Low
IdisL
Vdis = 0.4V
-
-
-0.4
mA
Quiescent Current
Iq
Io = 0A
-
-
10
mA


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