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零件编号
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LT1074 查看數據表(PDF) - Linear Technology
零件编号
产品描述 (功能)
生产厂家
LT1074
Step-Down Switching Regulator
Linear Technology
LT1074 Datasheet PDF : 16 Pages
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LT1074/LT1076
TYPICAL PERFOR A CE CHARACTERISTICS
V
C
Pin Characteristics
200
150
100
V
FB
ADJUSTED FOR
I
C
= 0 AT V
C
= 2V
50
0
–50
–100
–150
SLOPE
≈
400k
Ω
V
FB
≤
2V
–200
01 2 3 4 5 6 7 8 9
VOLTAGE (V)
LT1074•TPC01
Shutdown Pin Characteristics
40
30
20
10
V
IN
= 50V
THIS POINT MOVES
0
WITH V
IN
–10
–20
–30
–40
0
DETAILS OF THIS
AREA SHOWN IN
OTHER GRAPH
10 20 30 40 50
VOLTAGE (V)
60 70 80
LT1074•TPC04
6
V
C
Pin Characteristics
2.0
1.5
1.0
V
FB
≥
2.5V
0.5
0
–0.5
–1.0
–1.5
–2.0
01 2 3 4 5 6 7 8 9
VOLTAGE (V)
LT1074•TPC02
Shutdown Pin Characteristics
0
–5
T
j
= 25
°
C
CURRENT FLOWS OUT
–10
OF SHUTDOWN PIN
–15
SHUTDOWN
–20
THRESHOLD
–25
–30
–35
–40
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
VOLTAGE (V)
LT1074•PC05
Supply Current
20
18
16
14
DEVICE NOT SWITCHING
12
V
C
= 1V
10
8
6
4
2
0
0 10 20 30 40
INPUT VOLTAGE (V)
50 60
LT1074•TPC11
Feedback Pin Characteristics
500
400
300
200
START OF
100
FREQUENCY SHIFTING
0
–100
–200
–300
–400
–500
0 1 2 3 4 5 6 7 8 9 10
VOLTAGE (V)
LT1074•TPC03
I
LIM
Pin Characteristics
100
50
0
–50
T
j
= 25
°
C
–100
–150
–200
–250
–300
–350
–400
–2 –1 0 1 2 3 4 5 6 7 8
VOLTAGE (V)
LT1074•TPC06
1074fd
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