SC4541EVB-2 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
SC4541EVB-2
Semtech Corporation
'SC4541EVB-2' PDF : 19 Pages View PDF
Applications Information ( contin5Vueind, )LEDs 6S1P
SC4541
Efficiency 5Vin, LEDs
R5
10K
U1
VIN
IN
EN
5V
C3
1uF
GND SC4541 OUT
L1
SW
FB
10uH
R1
C2
10
1uF
C5
LED28
LED27
LED26
1uF
LED25
LED24
LED23
LEDs: EVERLIGHT EHP-109/UB31H-PU5/TR
L1: Murata LQH3NPN100NG0L
C1, C2, C5: Murata GRM21BR71H105K
75
70
65
60
55
50
45
0
5Vin 6S1P LED
5
10
15
20
ILED(mA)
Efficiency(LEDs
Figure 4 — Typical ApLpElicDatsio1nSSc2hPem, 2at0ic0, mFloAating Buck-Boost Topology
VIN
6V to 22V
C3
1uF
L1
22uH
R5
10K
U1
IN
EN
GND SC4541 OUT
SW
FB
C5
4.7uF
LED9
LED10
LEDs: EVERLIGHT EHP-109/UB31H-PU5/TR
L1: Cooper SD52-220-R
C1, C2: Murata GRM21BR71H105K
C5: Murata GRM31CR71H475K
R1
C2
10
1uF
1S2P LED, 200mA
65
63
61
59
57
55
3
6
9 12 15 18 21 24
Vin(V)
Figure 5 — Typical Application Schematic, Floating Buck-Boost Topology
14
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