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LT8646SA Datasheet(PDF) 13 Page - Analog Devices

Part # LT8646SA
Description  65V, 8A Synchronous Step-Down Silent Switcher 2 with 2.5μA Quiescent Current
PDF  39 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT8646SA Datasheet(HTML) 13 Page - Analog Devices

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Data Sheet
LT8645SA/LT8646SA
analog.com
Rev 0
13 of 39
Figure 15. Burst Mode Operation Efficiency
vs Inductor Value (LT8645SA)
Figure 16. Reference Voltage
Figure 17. EN Pin Thresholds
Figure 18. LT8645SA Load Regulation
Figure 19. LT8646SA Load Regulation
Figure 20. LT8645SA Line Regulation
VOUT = 5V
L = XAL7070
IOUT = 10mA
VIN = 12V
VIN = 24V
VIN = 48V
INDUCTOR VALUE (µH)
1
2
3
4
5
6
7
50
55
60
65
70
75
80
85
90
95
100
TEMPERATURE (°C)
–50
–25
0
25
50
75
100
125
961
963
965
967
969
971
973
975
977
979
EN RISING
EN FALLING
TEMPERATURE (°C)
–50
–25
0
25
50
75
100
125
0.95
0.96
0.97
0.98
0.99
1.00
1.01
1.02
1.03
LOAD CURRENT (A)
0
1
2
3
4
5
6
7
8
–0.10
–0.05
0
0.05
0.10
0.15
0.20
VOUT = 5V
VIN = 12V
VSYNC = 0V
VOUT = 5V
VIN = 12V
VSYNC = 0V
LOAD CURRENT (A)
0
1
2
3
4
5
6
7
8
–0.50
–0.40
–0.30
–0.20
–0.10
0
0.10
0.20
0.30
0.40
VOUT = 5V
ILOAD = 2A
INPUT VOLTAGE (V)
5
15
25
35
45
55
65
–0.10
–0.05
0
0.05
0.10
0.15
0.20



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