Datasheet

LTC3787
30
3787fc
TYPICAL APPLICATIONS
Figure 12. High Efficiency 2-Phase 36V 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
348k
LTC3787
L2
10.2µH
L1
10.2µH
MTOP1
MBOT1
100k
3787 F12
INTV
CC
R
SENSE1
5m
C
SS
, 0.1µF
R
A
, 12.1k
C
ITHA
, 220pF
R
ITH
, 3.57k
C
ITH
, 15nF
R
SENSE2
5m
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 36V
V
OUT
36V, 6A
C
IN
, C
OUTA1
, C
OUTA2
: TDK C4532X7RIH685K
C
OUTB1
, C
OUTB2
: SANYO, 50CE220LX
L1, L2: PULSE PA2050.103NL
MBOT1, MBOT2, MTOP1, MTOP2: RENESAS RJICO652DPB
D1, D2: BAS170W
Figure 13. High Efficiency 2-Phase 48V 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
475k
LTC3787
L2
16µH
L1
16µH
MTOP1
MBOT1
100k
3787 F13
INTV
CC
R
SENSE1
8m
C
SS
, 0.1µF
R
A
, 12.1k
C
ITHA
, 220pF
R
ITH
, 23.7k
C
ITH
, 10nF
R
SENSE2
8m
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 38V
V
OUT
48V, 4A
C
IN
, C
OUTA1
, C
OUTA2
: TDK C4532X7RIH685K
C
OUTB1
, C
OUTB2
: SANYO, 63CE220K
L1, L2: PULSE PA2050.163NL
MBOT1, MBOT2, MTOP1, MTOP2: RENESAS RJK0652DPB
D1, D2: BAS170W