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SC508 데이터시트(PDF) 10 Page - Semtech Corporation

부품명 SC508
상세설명  EcoSpeed짰 DC-DC Buck Controller with Integrated LDO
PDF  32 Pages
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제조업체  SEMTECH [Semtech Corporation]
홈페이지  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC508 데이터시트(HTML) 10 Page - Semtech Corporation

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SC508/SC508A
10
RLIM
100nF
RPSV(2)
100nF
SC508
VLDO
VOUT
DL
VDDA
PGOOD
PSV
VDDP
FB
VIN
PGND
Q1
EN
PGOOD
ENABLE LDO
5V
VIN
VIN
Q2
RTOP
L1
RBOT
1µF
5V
VOUT
RTON
1µF
VLDO
1
2
3(1)
4
5
11
12
13
14
15
6
7
8
9 10
20 19 18
17
16
COUT
+
1µF
154kW
36V to 1.8V @ 8A
CTOP*
PAD
20kW
10kW
np
CIN1 CIN2
100nF
Component
Value
Manufacturer
Part Number
Web
CIN1, CIN2
10µF/50V
Murata
GRM32ER71H106KA12L
www.murata.com
www.panasonic.com
COUT
330µF/6mW
Sanyo
2TPF330M6
www.vishay.com
L1
1.8µH
Vishay
IHLP4040EZER1R8M01
Key Component�
www.aosmd.com
Q1
AO4440
Alpha Omega
AO4440
www.fairchildsemi.com
Q2
FDMS5352
Fairchild
FDMS5352
6.81kW
CSS
3.9nF
CBST
(1)
(2) RPSV:
Use 115kW for Ultrasonic operation.
Remove RPSV for Power-Save operation.
Connect PSV pin to VDDA for Forced Continuous Mode operation.
(1) 5V:
Connect VDDA and VDDP to external 5V supply for external bias.
Connect VDDA and VDDP to VLDO for self -biased operation.
Notes:
RBST
3.3W
Detailed Application Circuit



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