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SC4508 Datasheet(PDF) 9 Page - Semtech Corporation

Part # SC4508
Description  Buck or Buck-Boost(Inverting) Current Mode Controller
PDF  10 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4508 Datasheet(HTML) 9 Page - Semtech Corporation

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9
 2004 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC4508
Evaluation Board Schematic, Buck-Boost
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Bill of Materials
GND
C8
47uF/16V
R1
0.1
C6
680pF
TP8
TP1
C4
1uF
L1
33uH
TP7
TP6
C10
100pF
1
2
3
4
5
6
7
8
U2 Si4831DY
C2
47uF/16V
C11
2.7nF
C1
47uF/16V
C5
0.1uF
TP3
R5
6.04K
D1
1N5819HW
C7
0.1uF
COMP
10
NC
5
SS/SHDN
3
OSC
11
FB+
9
FB-
8
VREF
4
OUT
1
CS
2
VDD
12
AGND
6
PGND
7
U1
SC4508
U1
R2 100
R6 240
R7
10K
TP5
C3
1nF
TP4
R4
20K
C9
100uF/6.3V
TP10
fs = 250 K H z
R8
249
R9 1.0K
TP9
12V
GND
-5V/0.1A



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