Datasheet

LTC3787
31
3787fc
Figure 14. High Efficiency 2-Phase 24V Boost Converter with Inductor DCR Current Sensing
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
6.8µF
s 4
R
S2
26.1k
1%
C
B2
, 0.1µF
C
INT
4.7µF
R
S
232k
1%
LTC3787
L2
10.2µH
L1
10.2µH
MTOP1
MBOT1
100k
3787 F14
INTV
CC
INTV
CC
C
SS
, 0.1µF
R
A
12.1k, 1%
C
ITHA
, 220pF
R
ITH
, 8.87k, 1%
C
ITH
, 15nF
D1
D3
D2
R
FREQ
, 41.2k
R
S1
, 53.6, 1%
ILIM
PHASMD
CLKOUT
+
C
OUTB1
220µF
C2
0.1µF
C
OUTA2
6.8µF
s 4
+
C
OUTB2
220µF
C
INA
22µF
s 4
V
IN
5V TO 24V
V
OUT
24V, 8A
C4
0.1µF
C3
0.1µF
C1
0.1µF
+
C
INB
220µF
C
OUTA1
, C
OUTA2
: C4532x7R1H685K
C
OUTB1
, C
OUTB2
: SANYO 63CE220KX
C
INA
: TDK C4532X5R1E226M
C
INB
: SANYO 50CE220AX
L1, L2: PULSE PA2050.103NL
MBOT1, MBOT2, MTOP1, MTOP2: RENESAS RJK0305
D1, D2: BAS140W
D3, D4: DIODES INC. B340B
D4
R
S4
26.1k
1%
R
S3
, 53.6k, 1%