LT3840
Typical applicaTions
Wide Input Range, High Power Output, 15V to 60V Input to 12V, 20A Output
V
IN
15V TO 60V
1µF
C
68µF
×2
IN
L2, 33µH
887k
AUXBST AUXSW1 AUXSW2
INTV
V
IN
CC
4.7µF
1µF
1N4448
AUXVIN
EN
BOOST
60.4k
LT3840
UVLO
OVLO
PG
M1
×2
R
TG
SW
BG
SENSE
2.5mΩ
L1, 5.6µH
D1
V
OUT
174k
12V
INTV
20k
CC
C
22µF
×4
20A
OUT2
C
M2
×2
OUT1
560µF
SYNC
MODE
RT
+
SENSE
–
V
C
SENSE
86.6k
TK/SS
FB
20k
2200pF
0.01µF
M1: INFINEON, BSC160N10NS3
M2: INFINEON, BSC070N1ONS3
L1: VISHAY, IHLP6767GZER5R6MA1
L2: COILCRAFT, ME3220-333KL
GND
ICTRL
10k
IMON
2200pF
ICOMP
7.68k
470pF
49.9k
100pF
100pF
C
C
C
: SUNCON 100CE68FS
IN
OUT1
OUT2
: SANYO, 16SVPF560M
: TAIYO YUDEN, EMK325BJ226MM-T
D1: DIODES INC. PDS5100H
3840 TA02
3840fa
For more information www.linear.com/LT3840
19
Linear [ Linear ]
