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SC4525FEVB 데이터시트(PDF) 7 Page - Semtech Corporation

부품명 SC4525FEVB
상세설명  18V, 3A, 350kHz Step-Down Switching Regulator
PDF  23 Pages
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제조업체  SEMTECH [Semtech Corporation]
홈페이지  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4525FEVB 데이터시트(HTML) 7 Page - Semtech Corporation

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SC4525F
7
Typical Characteristics
Efficiency
40
45
50
55
60
65
70
75
80
85
90
0
0.5
1
1.5
2
2.5
3
Load Current (A)
VIN =12V
D 2 =B320A
V
O = 3 .3 V
VO =2.5V
V
O = 1 .5 V
Efficiency
40
45
50
55
60
65
70
75
80
85
90
0
0.5
1
1.5
2
2.5
3
Load Current (A)
VIN =5V
D 2 =B320A
V
O = 2 .5 V
V
O = 3 .3 V
V
O = 1 .5 V
Efficiency
40
45
50
55
60
65
70
75
80
85
90
0
0.5
1
1.5
2
2.5
3
Load Current (A)
VIN =3.3V
D 2 =B320A
VO =2V
VO =1V
0
0.25
0.5
0.75
1
1.25
0.00
0.20
0.40
0.60
0.80
1.00
TA =25o C
VFB (V)
Foldback Frequency vs VFB
Feedback Voltage vs Temperature
0.97
0.98
0.99
1.00
1.01
1.02
-50 -25
0
25
50
75
100 125
VIN =12V
Temperature (oC)
Frequency vs Temperature
0.8
0.9
1.0
1.1
1.2
-50 -25
0
25
50
75
100 125
Temperature (OC)
BST Pin Current vs Switch Current
0.0
25.0
50.0
75.0
100.0
0
0.5 1
1.5 2
2.5 3
3.5 4
Switch Current (A)
-40oC
125oC
VIN =12V
V BST =15V



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