ltc3787gn Linear Technology Corporation, ltc3787gn Datasheet - Page 30

• Manufacturer Part Number: ltc3787gn
• Description: Ltc3787 - Polyphase Synchronous Boost Controller
• Manufacturer: Linear Technology Corporation

LTC3787
Typical applicaTions
30
C
C
L1, L2: PULSE PA2050.163NL
MBOT1, MBOT2, MTOP1, MTOP2: RENESAS RJK0652DPB
D1, D2: BAS170W
C
C
L1, L2: PULSE PA2050.103NL
MBOT1, MBOT2, MTOP1, MTOP2: RENESAS RJICO652DPB
D1, D2: BAS170W
IN
OUTB1
IN
OUTB1
C
C
, C
R
R
ITH
, C
ITH
A
A
OUTA1
, 12.1k
, 12.1k
OUTA1
, 15nF
, 10nF
, C
, C
C
C
OUTB2
C
OUTB2
ITHA
C
ITHA
SS
, C
SS
, C
R
R
, 0.1µF
, 0.1µF
OUTA2
ITH
, 220pF
OUTA2
, 220pF
ITH
R
348k
R
475k
: SANYO, 63CE220K
: SANYO, 50CE220LX
B
B
, 3.57k
, 23.7k
: TDK C4532X7RIH685K
: TDK C4532X7RIH685K
SS
ILIM
PHASMD
PLLIN/MODE
EXTV
ITH
SS
SENSE1
SENSE1
CLKOUT
SGND
RUN
FREQ
SENSE2
SENSE2
SENSE1
SENSE1
ILIM
PHASMD
CLKOUT
PLLIN/MODE
EXTV
RUN
FREQ
ITH
SENSE2
SENSE2
VFB
SGND
VFB
CC
CC
Figure 12. High Efficiency 2-Phase 36V Boost Converter
Figure 13. High Efficiency 2-Phase 48V Boost Converter
–
+
+
–
–
+
+
–
LTC3787
LTC3787
BOOST2
BOOST2
BOOST1
BOOST1
PGOOD
INTV
PGOOD
INTV
VBIAS
PGND
VBIAS
PGND
SW2
SW2
SW1
SW1
BG2
TG2
BG2
BG1
TG2
TG1
TG1
BG1
CC
CC
100k
100k
C
C
B1
D2
B1
D2
D1
D1
C
C
, 0.1µF
, 0.1µF
B2
B2
, 0.1µF
, 0.1µF
INTV
INTV
C
4.7µF
C
4.7µF
CC
CC
INT
INT
3787 F13
3787 F12
MTOP1
MBOT1
MBOT2
MTOP2
MTOP1
MBOT1
MBOT2
MTOP2
10.2µH
10.2µH
16µH
16µH
L1
L1
L2
L2
R
R
R
R
SENSE1
5m
SENSE2
SENSE1
8m
5m
SENSE2
8m
C
6.8µF
× 4
C
6.8µF
× 4
C
6.8µF
× 4
C
6.8µF
× 4
C
6.8µF
× 4
C
6.8µF
× 4
OUTA1
IN
OUTA2
OUTA1
IN
OUTA2
V
5V TO 36V
V
5V TO 38V
IN
IN
+
+
+
+
C
220µF
C
220µF
C
220µF
C
220µF
OUTB1
OUTB2
OUTB1
OUTB2
V
36V, 6A
V
48V, 4A
OUT
OUT
3787fa