sc4541 Semtech Corporation, sc4541 Datasheet - Page 14

• Manufacturer Part Number: sc4541
• Description: High Frequency Led Driver With Integrated Schottky And Simple Interconnect
• Manufacturer: Semtech Corporation

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