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SP6139EU-L/TR Datasheet(PDF) 13 Page - Exar Corporation

Part # SP6139EU-L/TR
Description  Wide Input, 1.3MHz Synchronous PWM Step Down Controller
PDF  16 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP6139EU-L/TR Datasheet(HTML) 13 Page - Exar Corporation

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SP
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61
13
39
9
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np
pu
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1..3
3M
MH
Hz
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yn
nc
ch
hrro
on
no
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PW
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© 2008 Exar Corporation
13/16
Rev. 2.0.0
TYPICAL APPLICATION DIAGRAM
5 6
3
CSS
47nF
CBST
0.1
μF
L1 SD25-2R2
2.2
μH @ 2.8A
DCR=31m
Ω
Si4922DY
8.3A, 18m
Ω
C3
47
μF
6.3V
R1
68.1k, 1%
VOUT≤VIN
3.3V @ 2A
R2
21.5k, 1%
CVCC
10
μF
6.3V
R3
150k, 1%
R4
100k, 1%
CF1
100pF
CZ2
1.2nF
CP1
39pF
RZ2
12.7k, 1%
8 7
1
DBST
MBR0530
SP6139
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
2.26k, 1%
CZ3
220pF
C1
22
μF
16V
GND
VIN
12V
C1, C2
Ceramic
1210
X5R
R5
Bead
QB
= 5V @ 30mA
0.8V
Si4922DY
8.3A, 18m
Ω
2
4
Note: Components highlighted in bold are those used on the SP6139 Evaluation Board.
Table 1. Input and Output Stage Components Selection Charts.



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