LM2841, LM2842
SNVS540H –MARCH 2009–REVISED APRIL 2013
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L1
15 mH
5V OUT
C
BOOT
LM2840/1/2-ADJL
0.15 mF
7V to 42V IN
D1
MA2YD26
CB
V
IN
SHDN
GND
SW
FB
R1
5.62k
C
R2
1.02k
IN
C
47 mF
OUT
2.2 mF
Figure 15. Application Circuit, 5V Output
L1
47 mH
12V OUT
C
BOOT
LM2840/1/2-ADJL
0.15 mF
15V to 42V IN
D1
MA2YD26
CB
V
IN
SHDN
GND
SW
FB
R1
14.7k
R2
1k
C
C
22 mF
IN
OUT
2.2 mF
Figure 16. Application Circuit, 12V Output
L1
47 mH
C
BOOT
15V OUT
LM2840/1/2-ADJL
0.15 mF
18V to 42V IN
D1
MA2YD26
CB
V
IN
SHDN
GND
SW
FB
R1
28k
C
IN
R2
C
OUT
1.5k
22 mF
2.2 mF
Figure 17. Application Circuit, 15V Output
L1
10 mH
C
BOOT
0.8V OUT
LM2840/1/2-ADJL
0.15 mF
4.5V to 12V IN
D1
MA2YD26
V
CB
SW
FB
IN
SHDN
GND
R1
30.9
C
R2
C
OUT
IN
787
100 mF
2.2 mF
Figure 18. Application Circuit, 0.8V Output
10
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