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LT8608 Datasheet(PDF) 13 Page - Analog Devices

Part # LT8608
Description  42V, 3.5A Synchronous Step-down Regulator with 2.5μA Quiescent Current
PDF  31 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT8608 Datasheet(HTML) 13 Page - Analog Devices

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Data Sheet
LT8615
analog.com
Rev 0
13 of 31
Figure 28. Switching Rising Edge
Figure 29. Switching Waveforms
Figure 30. Switching Waveforms
Figure 31. Transient Response
Figure 32. Transient Response
Figure 33. Conducted EMI Performance
VIN = 12V
ILOAD = 2A
2ns/DIV
2V/DIV
12VIN TO 3.3VOUT AT 1.5A
200ns/DIV
5V/DIV
500mA/DIV
12VIN TO 3.3VOUT AT 50mA
BURST MODE OPERATION
2µs/DIV
5V/DIV
500mA/DIV
1.85A TO 3.35A TRANSIENT (1.5A PULSE)
12VIN TO 3.3VOUT
COUT = 3 x 22µF
50µs/DIV
ILOAD
1A/DIV
VOUT
100mV/DIV
2.2A TO 3.5A TRANSIENT (1.3A PULSE)
12VIN TO 3.3VOUT
COUT = 3 x 22µF
50µs/DIV
ILOAD
1A/DIV
VOUT
100mV/DIV
EVAL-LT8615-AZ DEMO BOARD
(WITH EMI FILTER INSTALLED)
12V INPUT TO 5V OUTPUT AT 2.5A,
fsw = 2MHz
CLASS 5 PEAK LIMIT
SPREAD SPECTRUM MODE
FIXED FREQUENCY
FREQUENCY (MHz)
0.1
1
10
100 200
–10
0
10
20
30
40
50
60
70
80



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