SC461 데이터 시트보기 (PDF) - Semtech Corporation
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SC461 Datasheet PDF : 31 Pages
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SC461
Detailed Application Circuit
ENABLE LDO
EN
5V
VLDO
RTON
154kW
1µF
20 19 18 17 16
PAD
1 FB
2 VOUT
3(1) VDDA
4
100nF 5
VLDO
VIN
SC461
15
PGOOD
PSV
VDDP
14
13 (1)
12
DL
PGND 11
0W (2)
1µF
PGOOD
5V
RLIM
6.81kW
VIN
VIN
6 7 8 9 10
100nF
CSS
3.3nF
CBST
100nF
L1
COUT +
Q1
CIN1 CIN2
Q2
12V to 1.8V @ 10A
1µF
CTOP*
np
VOUT
RTOP
19.6kW
RBOT
10kW
Component
CIN1, CIN2
COUT
L1
Q1
Q2
Value
10µF/25V
2x220µF/15mW/4V
1.5µH
IRF7821
IRF7832
Key Components
Manufacturer
Part Number
Murata
GRM32DR71E106KA12L
Sanyo
Cyntec
4TPE220MF
PCMB1335T-1R5MF
I.R.
IRF7821
I.R.
IRF7832
Notes:
(1) 5V:
(2) PSV:
Connect VDDA and VDDP to external 5V supply for external bias.
Connect VDDA and VDDP to VLDO for self-biased operation.
Remove 0W resistor for Power-Save operation.
Connect 0W resistor from PSV pin to VDDA for Forced Continuous Mode operation.
Web
www.murata.com
edc.sanyo.com
www.cyntec.com
www.irf.com
www.irf.com
10
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