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LT3045 Scheda tecnica(PDF) 13 Page - Analog Devices

Il numero della parte LT3045
Spiegazioni elettronici  42V, 1A/2.5A Step-Down Silent Switcher 3 with Ultra-Low Noise Reference
PDF  44 Pages
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

LT3045 Scheda tecnica(HTML) 13 Page - Analog Devices

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Data Sheet
LT83401/LT83402
analog.com
Rev. 0
13 of 44
Figure 10. 12VIN to 5VOUT Efficiency
Figure 11. Efficiency at 3.3VOUT
Figure 12. Efficiency at 5VOUT
Figure 13. SET Pin Current vs. Temperature
Figure 14. Set Pin Currentvs. VSET
Figure 15. Set Pin Currentvs. VIN
EFFICIENCY
POWER LOSS
L = XGL6060
1 MHz, 4.7µH, (9.1mΩ)
2 MHz, 2.2µH, (4.3mΩ)
3 MHz, 1µH, (2.5mΩ)
LOAD CURRENT (A)
0
0.5
1.0
1.5
2.0
2.5
70
75
80
85
90
95
0
0.5
1.0
1.5
2.0
2.5
L = XGL6060, 8.2µH (15.2mΩ)
fSW = 500kHz
VIN = 12V
VIN = 24V
VIN = 36V
LOAD CURRENT (A)
0
0.5
1.0
1.5
2.0
2.5
70
75
80
85
90
95
L = XGL6060, 8.2µH (15.2mΩ)
fSW = 500kHz
VIN = 12V
VIN = 24V
VIN = 36V
LOAD CURRENT (A)
0
0.5
1.0
1.5
2.0
2.5
70
75
80
85
90
95
VIN = 12V
VOUT = 3.3V
TEMPERATURE (°C)
–50
–25
0
25
50
75
100
125
150
99.0
99.2
99.4
99.6
99.8
100.0
100.2
100.4
100.6
100.8
101.0
VIN = 42V
VSET (V)
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
99.0
99.2
99.4
99.6
99.8
100.0
100.2
100.4
100.6
100.8
101.0
VOUT = 3.3V
INPUT VOLTAGE (V)
0
5
10
15
20
25
30
35
40
45
99.0
99.2
99.4
99.6
99.8
100.0
100.2
100.4
100.6
100.8
101.0



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