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LT8646SEVPBF 数据表(PDF) 26 Page - Analog Devices

部件名 LT8646SEVPBF
功能描述  65V, 8A Synchronous Step-Down Silent Switcher 2 with 2.5μA Quiescent Current
PDF  30 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

LT8646SEVPBF 数据表(HTML) 26 Page - Analog Devices

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LT8645S/LT8646S
26
Rev. B
For more information www.analog.com
Figure 8. 5V 8A Step-Down Converter with Soft-Start and Power Good
Figure 10. Ultralow EMI 5V, 8A Step-Down Converter with Spread Spectrum
TYPICAL APPLICATIONS
Figure 9. 3.3V, 8A Step-Down Converter with Soft Start and Power Good
LT8645S/
LT8646S
PG
BIAS
FB
VIN
3.8V TO 65V
GND
RT
VIN
EN/UV
VOUT
3.3V
8A
2.2pF
4.7µF
10nF
1M
412k
f SW= 500kHz
L: LHMI-8040
88.7k
TR/SS
SYNC/MODE
CLKOUT
SW
100k
3.3µH
8645S F09
47µF
×2
1210
X5R/X7R
VC*
6.49k
PINS NOT USED
IN THIS CIRCUIT:
BST, INTVCC
*VC PIN AND COMPONENTS
ONLY APPLY TO LT8646S.
1.5nF
LT8645S/
LT8646S
VIN
SW
BIAS
FB
VIN
5.5V TO 65V
GND
PINS NOT USED
IN THIS CIRCUIT:
BST, CLKOUT, PG,
TR/SS
*VC PIN AND COMPONENTS
ONLY APPLY TO LT8646S.
RT
VIN
EN/UV
VOUT
5V
8A
100µF
1210
X5R/X7R
4.7pF
0.47µF
0805
0.47µF
0805
4.7µF
1210
17.8k
1M
243k
8645S F10
1µH
fSW = 2MHz
L: XEL6030
FB1 BEAD: WE-MPSB 100 8A 1812
GND
GND
FB1
BEAD
2.2µF
1210
2.2µF
1210
INTVCC
SYNC/MODE
VC*
7.5k
330pF
LT8645S/
LT8646S
PG
BIAS
FB
VIN
5.5V TO 65V
GND
PINS NOT USED
IN THIS CIRCUIT:
BST, INTVCC
*VC PIN AND COMPONENTS
ONLY APPLY TO LT8646S.
RT
VIN
EN/UV
VOUT
5V
8A
47µF
×2
1210
X5R/X7R
2.2pF
4.7µF
88.7k
1M
243k
fSW = 500kHz
L: LHMI-8040
10nF
TR/SS
VC*
SYNC/MODE
CLKOUT
SW
100k
3.3µH
8645S F08
6.04k
1nF



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