Datasheet

LTC3787
29
3787fc
TYPICAL APPLICATIONS
MBOT2
MTOP2
SENSE1
+
SENSE1
–
SENSE2
+
SENSE2
–
VFB
ITH
SGND
EXTV
CC
RUN
FREQ
SS
PLLIN/MODE
PGOOD
TG1
SW1
BOOST1
BG1
VBIAS
INTV
CC
PGND
BG2
TG2
BOOST2
SW2
C
B1
, 0.1µF
C
OUTA1
22µF
s 4
C
B2
, 0.1µF
C
INT
4.7µF
R
B
232k
LTC3787
L2
3.3µH
L1
3.3µH
MTOP1
MBOT1
100k
3787 F10
INTV
CC
R
SENSE1
4m
C
SS
, 0.1µF
R
A
, 12.1k
C
ITHA
, 220pF
R
ITH
, 8.66k
C
ITH
, 15nF
R
SENSE2
4m
D1
D2
ILIM
PHASMD
CLKOUT
+
C
OUTB1
220µF
C
OUTA2
22µF
s 4
+
C
OUTB2
220µF
C
IN
22µF
s 2
V
IN
5V TO 24V
V
OUT
24V, 10A*
C
IN
, C
OUTA1
, C
OUTA2
: TDK C4532X5R1E226M
C
OUTB1
, C
OUTB2
: SANYO, 50CE220LX
L1, L2: PULSE PA1494.362NL
MBOT1, MBOT2, MTOP1, MTOP2: RENESAS HAT2169H
D1, D2: BAS140W
*WHEN V
IN
< 8V, MAXIMUM LOAD CURRENT AVAILABLE IS REDUCED.
Figure 10. High Efficiency 2-Phase 24V Boost Converter
Figure 11. High Efficiency 2-Phase 28V Boost Converter
MBOT2
MTOP2
SENSE1
+
SENSE1
–
SENSE2
+
SENSE2
–
VFB
ITH
SGND
EXTV
CC
RUN
FREQ
SS
PLLIN/MODE
PGOOD
TG1
SW1
BOOST1
BG1
VBIAS
INTV
CC
PGND
BG2
TG2
BOOST2
SW2
C
B1
, 0.1µF
C
OUTA1
6.8µF
× 4
C
B2
, 0.1µF
C
INT
4.7µF
R
B
271k
LTC3787
L2
3.3µH
L1
3.3µH
MTOP1
MBOT1
100k
3787 F11
INTV
CC
R
SENSE1
4m
C
SS
, 0.1µF
R
A
, 12.1k
C
ITHA
, 220pF
R
ITH
, 8.66k
C
ITH
, 15nF
R
SENSE2
4m
D1
D2
ILIM
PHASMD
CLKOUT
+
C
OUTB1
220µF
C
OUTA2
6.8µF
× 4
+
C
OUTB2
220µF
C
IN
6.8µF
× 4
V
IN
5V TO 28V
V
OUT
28V, 8A
C
IN
, C
OUTA1
, C
OUTA2
: TDK C4532X7RIH685K
C
OUTB1
, C
OUTB2
: SANYO, 50CE220LX
L1, L2: PULSE PA1494.362NL
MBOT1, MBOT2, MTOP1, MTOP2: RENESAS HAT2169H
D1, D2: BAS140W