LT3840
Typical applicaTions
Low Part Count Application, 6V to 60V Input to 5V, 10A Output
V
IN
6V TO 60V
1µF
C
68µF
×2
IN
L2, 33µH
AUXBST AUXSW1 AUXSW2
INTV
V
IN
CC
4.7µF
1µF
1N4448
AUXVIN
EN
BOOST
LT3840
UVLO
OVLO
PG
M1
M2
TG
SW
BG
R
SENSE
5mΩ
L1, 5.6µH
V
OUT
5V
10A
C
OUT
SYNC
MODE
RT
270µF
+
SENSE
–
V
C
SENSE
301k
FB
TK/SS
20k
GND
100k
IMON
ICOMP
ICTRL
2200pF
49.9k
M1: INFINEON, BSC160N10NS3
M2: INFINEON, BSC070N1ONS3
L1: VISHAY, IHLP5050
470pF
L2: COILCRAFT, ME3220-333KL
C
C
: SUNCON 100CE68FS
OUT
IN
: SANYO, 16SVPC270M
3840 TA03
Low Voltage, High Current Output, 4V to 60V Input to 3.3V, 20A
V
IN
4V TO 60V
1µF
C
68µF
×2
IN
L2, 33µH
887k
AUXBST AUXSW1 AUXSW2
V
INTV
CC
IN
4.7µF
1µF
1N4448
AUXVIN
EN
BOOST
60.4k
LT3840
UVLO
OVLO
PG
M1
×2
TG
SW
BG
R
SENSE
2.5mΩ
L1, 1.7µH
D1
V
3.3V
20A
OUT
174k
INTV
20k
CC
C
22µF
×4
OUT2
C
M2
×2
OUT1
SYNC
MODE
RT
560µF
+
SENSE
–
V
SENSE
C
16.9k
TK/SS
FB
20k
2200µF
0.01µF
M1: INFINEON, BSC160N10NS3
M2: INFINEON, BSC070N1ONS3
L1: WÜRTH, 7443556130
GND
10k
49.9k
IMON
2200pF
ICOMP
7.68k
470pF
ICTRL
100pF
L2: COILCRAFT, ME3220-333KL
C
C
C
: SUNCON 100CE68FS
IN
: SANYO, 16SVPF560M
OUT1
OUT2
: TAIYO YUDEN, EMK325BJ226MM-T
D1: DIODES INC. PDS5100H
3840 TA04
3840fa
20
For more information www.linear.com/LT3840
Linear [ Linear ]
