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SP6137 Datasheet(PDF) 13 Page - Exar Corporation

Part # SP6137
Description  Wide Input, 900kHz Synchronous PWM Step Down Controller
PDF  15 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP6137 Datasheet(HTML) 13 Page - Exar Corporation

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© 2008 Exar Corporation
13/15
Rev. 2.0.0
TYPICAL APPLICATION DIAGRAM
8 7 6 5
1 2 3
4
CSS
47nF
CBST
0.1
μF
L1 SC5018-2R7M
2.7
μH @ 12A
DCR=4.30m
Ω
FDS6676S
14.5A, 6.0m
Ω
C3
47
μF
6.3V
R1
68.1k, 1%
VOUT≤VIN
3.3V @ 10A
R2
21.5k, 1%
CVCC
10
μF
6.3V
R3
221k, 1%
R4
100k, 1%
CF1
100pF
CZ2
820pF
CP1
56pF
RZ2
40.2k, 1%
FDS6676S
14.5A, 6m
Ω
8 7 6 5
4
1 2 3
DBST
MBR0530
SP6137
1
2
3
4
5
10
9
8
7
6
VCC
GL
GND
VFB
COMP
BST
GH
SWN
SS
UVIN
UVIN
VCC
GND 3
RLF
3.0,5%
U1
CVCC
Ceramic
8050
X5R
QT
SS
GND2
C3, C4
Ceramic
1210
X5R
C4
47
μF
6.3V
RZ3
4.64k, 1%
CZ3
220pF
C1
22
μF
16V
C2
22
μF
16V
GND
VIN
2.5V -20V
C1, C2
Ceramic
1210
X5R
R5
Bead
QB
= 5V @ 30mA
0.8V
Note: Components highlighted in bold are those used on the SP6137 Evaluation Board.
Table 1. Input and Output Stage Components Selection Charts.



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