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LT1072CT Datasheet(PDF) 9 Page - Linear Technology

Part # LT1072CT
Description  1.25A High Efficiency Switching Regulator
Download  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1072CT Datasheet(HTML) 9 Page - Linear Technology

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9
LT1072
1072fc
Totally Isolated Converter
Synchronizing with Bipolar Transistor
Synchronizing with MOS Transistor
FROM 5V
LOGIC
R1
3k
R2
2.2k
C2
68pF
VIN
VC
GND
LT1072
2N2369
R3
C1
LT1072 • OP01
FROM 5V
LOGIC
*SILICONIX OR EQUIVALENT
R2
2.2k
D2
1N4158
C2
200pF
D1
1N4158
VIN
VC
GND
LT1072
R3
C1
VN2222*
LT1072 • OP02
LT1072 OPERATIO
C5
25µF*
R4
2.7k
C3
0.47µF
C2
0.01µF
1:N
D1
COM
15V
L1
10µH
OPTIONAL
OUTPUT FILTER
N
N
VIN
5V
500Ω
R2
*REQUIRED IF INPUT LEADS ≥ 2”
N = 0.875 = 7:8
FOR VOUT = 15V
5k
C1
200µF
C5
200µF
C6
200µF
C4
200µF
–15V
L2
10µH
VIN
VSW
FB
VC
GND
LT1072
SWITCH VOLTAGE
VOUT + Vf (Vf = DIODE FORWARD VOLTAGE)
tOFF
tON
VIN
0
0V
SECONDARY VOLTAGE
N • VIN
≈ 16V
LT1072 • TA03
+
+
+
+
+
TYPICAL APPLICATIO S


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