Datasheet

LTC3786
25
3786fa
applicaTions inForMaTion
SENSE
+
SENSE
–
TG
C
B
0.1µF
C
ITHA
220pF
LTC3786
C
SS
0.1µF
C
ITH
15nF
C
IN
22µF
MTOP
MBOT
D
C
INT
4.7µF
3786 F08
V
OUT
24V
5A*
V
IN
5V TO 24V
R
SENSE
4mΩ
L
3.3µH
BOOST
SW
VBIAS
BG
GND
PGOOD
INTV
CC
VFB
ITH
SS
R
A
12.1k
100k
R
ITH
8.66k
R
S
232k
C
IN
, C
OUTA
: TDK C4532X5R1E226M
C
OUTB
: SANYO 50CE220LX
D: BAS140W
L: PULSE PA1494.362NL
MBOT, MTOP: RENESAS HAT2169H
*WHEN V
IN
< 8V, MAXIMUM LOAD CURRENT AVAILABLE IS REDUCED.
FREQ
RUN
PLLIN/MODE
C
OUTA
22µF
×4
C
OUTB
220µF
+
Figure 8. High Efficiency 24V Boost Converter
Figure 9. High Efficiency 28V Boost Converter
SENSE
+
SENSE
–
TG
C
B
0.1µF
C
ITHA
220pF
LTC3786
C
SS
0.1µF
C
ITH
15nF
C
IN
6.8µF
×4
MTOP
MBOT
D
C
INT
4.7µF
3786 F09
V
OUT
28V
4A*
V
IN
5V TO 28V
R
SENSE
4mΩ
L
3.3µH
BOOST
SW
VBIAS
BG
GND
PGOOD
INTV
CC
VFB
ITH
SS
R
A
12.1k
100k
R
ITH
8.66k
R
S
261k
FREQ
RUN
PLLIN/MODE
C
OUTA
6.8µF
×4
C
OUTB
220µF
+
C
IN
, C
OUTA
: TDK C4532X7R1H685K
C
OUTB
: SANYO 63CE220KX
D: BAS140W
L: PULSE PA1494.362NL
MBOT, MTOP: RENESAS HAT2169H
*WHEN V
IN
< 8V, MAXIMUM LOAD CURRENT AVAILABLE IS REDUCED.