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LT3045 データシート(PDF) 12 Page - Analog Devices

部品番号 LT3045
部品情報  18V, 1A Step-Down Silent Switcher 3 with Ultra-Low Noise Reference
PDF  45 Pages
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
Logo AD - Analog Devices

LT3045 データシート(HTML) 12 Page - Analog Devices

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Data Sheet
LT83201
analog.com
Rev. A 12 of 45
Figure 16. Efficiency vs. VIN
Figure 17. SET Pin Current vs. Temperature
Figure 18. SET PIN Current vs. VSET
Figure 19. SET PIN Current vs. Input Voltage
Figure 20. Load Regulation
Figure 21. Line Regulation
L = XGL6060
VOUT = 3.3V
ILOAD = 0.5A
fSW = 1MHz, L = 6.8µH (DCR = 12.7mΩ)
fSW = 2MHz, L = 3.3µH (DCR = 5.9mΩ)
INPUT VOLTAGE (V)
4
6
8
10
12
14
16
18
70
75
80
85
90
95
100
VIN = 12V
VOUT = 1V
TEMPERATURE (°C)
–50
–25
0
25
50
75
100
125
99.0
99.2
99.4
99.6
99.8
100.0
100.2
100.4
100.6
100.8
101.0
VIN = 18V
VSET (V)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
99.0
99.2
99.4
99.6
99.8
100.0
100.2
100.4
100.6
100.8
101.0
VOUT = 1V
INPUT VOLTAGE (V)
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18
99.0
99.2
99.4
99.6
99.8
100.0
100.2
100.4
100.6
100.8
101.0
VOUT = 1V
ILOAD = 1A
fSW = 2MHz
FORCED CONTINUOUS MODE
INPUT VOLTAGE (V)
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18
–0.50
–0.45
–0.40
–0.35
–0.30
–0.25
–0.20
–0.15
–0.10
–0.05
0
0.05
0.10



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