LTC3890
Typical applicaTions
High Efficiency 12V at 25A Dual-Phase Step-Down Converter
R
B1
499k
+
–
SENSE1
INTV
CC
C1
1nF
10pF
100k
SENSE1
PGOOD1
PGOOD2
BG1
R
A1
35.7k
V
FB1
C
100pF
ITH1A
L1
10µH
MBOT1
MTOP1
R
SENSE1
3mΩ
V
12V
25A
OUT
R
ITH1
SW1
9.76k
BOOST1
ITH1
C
OUT1
C
SS1
C
C
150µF
LTC3890
TRACK/SS1
ITH1
4.7nF
B1
0.1µF
0.1µF
TG1
D1
I
LIM
V
IN
PHSMD
CLKOUT
PLLIN/MODE
V
IN
16V TO 60V
C
IN
100µF
INTV
CC
C
INT
SGND
FREQ
4.7µF
PGND
R
FREQ
30.1k
R
D2
RUN1
1000k
V
IN
TG2
MTOP2
RUN1
RUN2
C
0.1µF
B2
R
RUN2
L2
10µH
57.6k
R
BOOST2
SW2
SENSE2
3mΩ
TRACK/SS2
ITH2
C
OUT2
V
MBOT2
EXTV
CC
BG2
OUT
150µF
V
FB2
–
+
SENSE2
SENSE2
C2
1nF
3890 TA07
MTOP1, MTOP2, MBOT1, MBOT2: RJK0651DPB
L1, L2: WÜRTH 7443631000
C
C
, C
: SANYO 16SVPC150M
OUT1 OUT2
IN
: SUN ELECT. 63CE100BS
D1, D2: DFLS1100
3890fb
37
Linear Systems [ Linear Systems ]
