Datasheet

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