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LT3045 Datasheet(PDF) 15 Page - Analog Devices

Part # LT3045
Description  42V, 1A/2.5A Step-Down Silent Switcher 3 with Ultra-Low Noise Reference
PDF  44 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT3045 Datasheet(HTML) 15 Page - Analog Devices

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Data Sheet
LT83401/LT83402
analog.com
Rev. 0
15 of 44
Figure 22. VIN to VSET Dropout Voltage vs. Temperature
Figure 23. VIN to VOUT Dropout Voltage vs. ILOAD
Figure 24. Minimum VINvs. Temperature
Figure 25. Minimum VIN as a Function of VSET
Figure 26. No-Load Supply Current
Figure 27. Switching Frequency vs. Temperature
VOUT = 3.3V
TEMPERATURE (°C)
–50
–25
0
25
50
75
100
125
150
400
450
500
550
600
650
700
750
800
850
900
VOUT = 5V, RSET = 24.9kΩ
fSW = 500kHz, L = XGL6060, 8.2µH (15.2mΩ)
FORCED CONTINUOUS MODE
PULSE-SKIPPING MODE
LOAD CURRENT (A)
0
0.5
1.0
1.5
2.0
2.5
0
0.25
0.50
0.75
1.00
1.25
1.50
VOUT ≤ 2.1V
TEMPERATURE (°C)
–50
–25
0
25
50
75
100
125
150
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
MINIMUM VIN
VSET
VSET (V)
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
0
2
4
6
8
10
12
14
16
VOUT = 3.3V
L = 2.2µH
PULSE-SKIPPING MODE
IN REGULATION
INPUT VOLTAGE (V)
0
5
10
15
20
25
30
35
40
45
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
RT = 47.5kΩ
TEMPERATURE (°C)
–50
–25
0
25
50
75
100
125
150
1.900
1.925
1.950
1.975
2.000
2.025
2.050
2.075
2.100



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