LTC3787
TYPICAL APPLICATIONS
–
SENSE1
100k
+
+
C
SENSE1
PGOOD
TG1
INTV
CC
OUTA1
C
OUTB1
220ꢀF
L1
3.3ꢀH
R
22ꢀF
SENSE1
4mΩ
MTOP1
MBOT1
ILIM
s 4
PHASMD
CLKOUT
SW1
C
, 0.1ꢀF
B1
PLLIN/MODE BOOST1
SGND
EXTV
RUN
BG1
CC
LTC3787
D1
VBIAS
INTV
CC
FREQ
V
V
IN
OUT
C
SS
, 0.1ꢀF
C
INT
4.7ꢀF
5V TO 24V
24V, 10A*
C
IN
SS
22ꢀF
PGND
BG2
C
, 15nF
s 2
ITH
D2
C
R
ITH
, 8.66k
ITH
MBOT2
MTOP2
, 0.1ꢀF
B2
C
ITHA
, 220pF
L2
3.3ꢀH
R
SENSE2
4mΩ
BOOST2
SW2
R , 12.1k
A
TG2
VFB
SENSE2
SENSE2
+
–
R
B
232k
+
C
22ꢀF
s 4
OUTA2
C
OUTB2
220ꢀF
3787 F10
C
C
, C : TDK C4532X5R1E226M
, C
OUTB1 OUTB2
IN OUTA1 OUTA2
, C : SANYO, 50CE220LX
L1, L2: PULSE PA1494.362NL
MBOT1, MBOT2, MTOP1, MTOP2: RENESAS HAT2169H
D1, D2: BAS140W
*WHEN V < 8V, MAXIMUM LOAD CURRENT AVAILABLE IS REDUCED.
IN
Figure ±0. High Efficiency 2-Phase 24V Boost Converter
–
SENSE1
SENSE1
ILIM
100k
+
+
C
PGOOD
TG1
INTV
CC
OUTA1
C
OUTB1
220ꢀF
L1
3.3ꢀH
6.8ꢀF
R
MTOP1
MBOT1
SENSE1
4mΩ
× 4
PHASMD
CLKOUT
PLLIN/MODE
SGND
SW1
C
, 0.1ꢀF
B1
BOOST1
EXTV
RUN
BG1
CC
LTC3787
D1
VBIAS
INTV
CC
FREQ
V
V
IN
OUT
C
SS
, 0.1ꢀF
C
INT
4.7ꢀF
5V TO 28V
28V, 8A
C
IN
SS
6.8ꢀF
PGND
BG2
C , 15nF
ITH
× 4
D2
C
R
, 8.66k
ITH
ITH
MBOT2
MTOP2
, 0.1ꢀF
B2
C
, 220pF
ITHA
L2
3.3ꢀH
R
SENSE2
4mΩ
BOOST2
SW2
R , 12.1k
A
TG2
VFB
SENSE2
SENSE2
+
–
R
B
271k
+
C
6.8ꢀF
× 4
OUTA2
C
OUTB2
220ꢀF
3787 F11
C
, C : TDK C4532X7RIH685K
, C
OUTB1 OUTB2
IN OUTA1 OUTA2
C
, C : SANYO, 50CE220LX
L1, L2: PULSE PA1494.362NL
MBOT1, MBOT2, MTOP1, MTOP2: RENESAS HAT2169H
D1, D2: BAS140W
Figure ±±. High Efficiency 2-Phase 28V Boost Converter
3787fc
29
Linear Systems [ Linear Systems ]
