Datasheet

LTC3890-3
38
38903f
For more information www.linear.com/3890-3
High Efficiency 12V at 25A Dual-Phase Step-Down Converter
Typical applicaTions
MTOP2
SENSE1
+
SENSE1
–
V
FB1
TRACK/SS2
ITH2
V
FB2
SENSE2
–
SENSE2
+
ITH1
TRACK/SS1
PLLIN/MODE
SGND
FREQ
RUN1
RUN2
BG1
C
ITH1A
100pF
C
ITH1
4.7nF
C
SS1
0.1µF
C1
1nF
C
OUT
150µF
×2
R
B1
499k
R
A1
35.7k
10pF
R
ITH1
9.76k
R
FREQ
30.1k
V
IN
V
OUT
MTOP1, MTOP2, MBOT1, MBOT2: RJK0651DPB
L1, L2: WÜRTH 7443631000
C
OUT
: SANYO 16SVPC150M
C
IN
: SUN ELECT. 63CE100BS
D1, D2: DFLS1100
D1
D2
LTC3890-3
L1
10µH
L2
10µH
MBOT1
TG1
MTOP1
V
OUT
12V
25A
38903 TA05b
INTV
CC
PGOOD1
100k
C
B1
0.1µF
C2
1nF
SW1
SW2
BOOST1
C
B2
0.1µF
BOOST2
V
IN
INTV
CC
PGND
TG2
BG2
C
INT
4.7µF
MBOT2
R
SENSE1
3mΩ
R
SENSE2
3mΩ
EXTV
CC
R
RUN1
1000k
R
RUN2
57.6k
V
IN
16V TO 60V
C
IN
100µF
2.2µF
x2
+