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LT3045 データシート(PDF) 11 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) 11 Page - Analog Devices

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Data Sheet
LT83201
analog.com
Rev. A 11 of 45
Figure 10. 12VIN to 1.2VOUT Efficiency (FCM)
Figure 11. 12VIN to 1.8VOUT Efficiency (FCM)
Figure 12. 12VIN to 3.3VOUT Efficiency (FCM)
Figure 13. 12VIN to 5VOUT Efficiency (FCM)
Figure 14. 12VIN to 3.3VOUT Efficiency (DCM)
Figure 15. 12VIN to 3.3VOUT Efficiency
EFFICIENCY
POWER LOSS
L = XGL6060
1MHz, 3.30µH, (5.9mΩ)
2MHz, 1.50µH, (3.3mΩ)
3MHz, 1.00µH, (2.5mΩ)
4MHz, 0.68µH, (2.0mΩ)
LOAD CURRENT (A)
0
0.2
0.4
0.6
0.8
1.0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
0
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
0.60
0.65
0.70
0.75
0.80
1.0
EFFICIENCY
POWER LOSS
L = XGL6060
1MHz, 4.7µH, (9.1mΩ)
2MHz, 2.2µH, (4.3mΩ)
3MHz, 1.5µH, (3.3mΩ)
4MHz, 1.0µH, (2.5mΩ)
LOAD CURRENT (A)
0
0.2
0.4
0.6
0.8
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
0
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
0.60
0.65
0.70
EFFICIENCY
POWER LOSS
L = XGL6060
1MHz, 6.8µH, (12.7mΩ)
2MHz, 3.3µH, (5.9mΩ)
3MHz, 2.2µH, (4.3mΩ)
4MHz, 1.5µH, (3.3mΩ)
LOAD CURRENT (A)
0
0.2
0.4
0.6
0.8
35
40
45
50
55
60
65
70
75
80
85
90
95
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
0.60
0.65
1.0
EFFICIENCY
POWER LOSS
L = XGL6060
1MHz, 8.2µH, (15.2mΩ)
2MHz, 4.7µH, (9.1mΩ)
3MHz, 3.3µH, (5.9mΩ)
4MHz, 2.2µH, (4.3mΩ)
LOAD CURRENT (A)
0
0.2
0.4
0.6
0.8
40
45
50
55
60
65
70
75
80
85
90
95
100
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
0.60
0.65
1.0
L = XGL6060
EFFICIENCY
POWER LOSS
1MHz, 6.8µH, (12.7mΩ)
2MHz, 3.3µH, (5.9mΩ)
3MHz, 2.2µH, (4.3mΩ)
4MHz, 1.5µH, (3.3mΩ)
LOAD CURRENT (mA)
10
100
1000
0
10
20
30
40
50
60
70
80
90
100
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
EFFICIENCY
POWER LOSS
2MHz, DCM
2MHz, FCM
LOAD CURRENT (mA)
50
100
1000
50
55
60
65
70
75
80
85
90
95
100
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55



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