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LT8640S Datasheet(PDF) 24 Page - Analog Devices

Part # LT8640S
Description  18V, 10A Synchronous Step-Down Silent Switcher
PDF  26 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT8640S Datasheet(HTML) 24 Page - Analog Devices

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LT8642-1
24
Rev. 0
For more information www.analog.com
Figure 12. 2MHz 1V, 10A Step-Down Converter with Spread Spectrum
Figure 13. 2MHz 3.3V, 10A Step-Down Converter with Spread Spectrum
Figure 14. 5V, 10A Step-Down Converter
TYPICAL APPLICATIONS
1µF
47pF
EXTERNAL
SOURCE >3.1V
OR GND
PINS NOT USED IN
THIS CIRCUIT:
CLKOUT, PG, SS
LT8642-1
SW
BIAS
FB
GND
RT
VC
VOUT
1V
10A
220µF ×2
1206
X5R/X7R
17.8k
100k
147k
0.28µH
fSW = 2MHz
L: XEL6030
SYNC/MODE
INTVCC
330pF
10.2k
1F
0603
1F
0603
VIN
2.8V TO 18V
VIN
EN/UV
GND
GND
10µF
VIN
1µF
47nF
BST
86421 F12
PINS NOT USED IN
THIS CIRCUIT:
CLKOUT, PG, SS
LT8642-1
SW
BIAS
FB
GND
RT
VC
VOUT
3.3V
10A
47µF ×2
1210
X5R/X7R
39pF
17.8k
100k
22.1k
0.82µH
fSW = 2MHz
L: XEL6060
SYNC/MODE
INTVCC
220pF
6.98k
1F
0603
1F
0603
VIN
3.6V TO 18V
VIN
EN/UV
GND
GND
10µF
VIN
47nF
BST
1µF
86421 F13
PINS NOT USED IN
THIS CIRCUIT:
CLKOUT, SYNC/MODE,
PG, SS
LT8642-1
SW
BIAS
FB
GND
RT
INTVCC
VOUT
5V
10A
100µF ×2
1210
X5R/X7R
47pF
25.5k
13.7k
1.5µH
fSW = 1.5MHz
L: XEL6030
VC
100k
1nF
1F
30.1k
1F
0603
1F
0603
VIN
5.5V TO 18V
VIN
EN/UV
GND
GND
10µF
VIN
47nF
BST
86421 F14



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