LT1185 데이터 시트보기 (PDF) - Linear Technology
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LT1185 Datasheet PDF : 16 Pages
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TYPICAL APPLICATIO S
Foldback Current Limiting
+
+ 2µF
VIN
TANT
GND
R3
R4
15k 5.36k
Q1
2N3906
R1
2.37k
+
REF
FB
+
2µF
TANT VOUT
–
VIN
LT1185
R2
2.61k
VOUT
–
LT1185 • TA03a
LT1185
1.6
1.4
1.2
IFULL
LOAD
=
15k
R3
+
10.8k
R4
1.0
0.8
0.6
0.4
0.2
0
ISHORT-CIRCUIT
=
15k
R3
IOUT
LT1185 • TA03b
Auxiliary + 12V Low Dropout Regulator for Switching Supply
PRIMARY
*
+
RLIM
REF
GND
FB
VIN
LT1185
VOUT
R1
2.37k
+
12V
REGULATED
AUXILIARY
R2
9.76k
*
+
5V
CONTROL
5V
MAIN
OUTPUT
*DIODE CONNECTION INDICATES A FLYBACK
SWITCHING TOPOLOGY, BUT FORWARD
CONVERTERS MAY ALSO BE USED
LT1185 • TA04
1185ff
11
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