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LTC7151S Datasheet(PDF) 14 Page - Analog Devices

Part # LTC7151S
Description  18V, 3A/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

LTC7151S Datasheet(HTML) 14 Page - Analog Devices

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Data Sheet
LT83203/LT83205
analog.com
Rev. B
14 of 44
Figure 22. Top MOSFET Current Limit vs. Duty Cycle
Figure 23. Switch RDS(ON) vs. Temperature
Figure 24. Dropout Voltage vs. Temperature
Figure 25. Minimum VIN vs. Temperature
Figure 26. Minimum VIN as a Function of VSET
Figure 27. No-Load Supply Current
LT83203
LT83205
DUTY CYCLE (%)
0
10
20
30
40
50
60
70
80
90
100
2
3
4
5
6
7
8
9
10
11
12
TOP SWITCH
BOTTOM SWITCH
TEMPERATURE (°C)
–50
–25
0
25
50
75
100
125
150
0
20
40
60
80
100
120
140
160
180
VIN = 12V
VOUT > 2.4V
TEMPERATURE (°C)
0
–25
0
25
50
75
100
125
150
300
350
400
450
500
550
600
650
700
750
800
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
0
2
4
6
8
10
12
14
16
VOUT = 1V
L = 0.47µH
PULSE-SKIPPING MODE
IN REGULATION
INPUT VOLTAGE (V)
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0



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