Datasheet

LTC3869/LTC3869-2
35
38692fa
For more information www.linear.com/LTC3869
Typical applicaTions
Figure 17. High Efficiency Dual Phase 1.2V, 40A Supply, f
SW
= 250kHz
3869 F17
TG1
BOOST1
PGND
BG1
V
IN
INTV
CC
EXTV
CC
BG2
PGND
BOOST2
TK/SS1 I
TH1
V
FB1
SGND V
FB2
I
TH2
TK/SS2 SENSE2
+
SENSE2
–
0.1µF
SENSE1
–
SENSE1
+
RUN1
FREQ
MODE/PLLIN
SW1
RUN
I
LIM
PGOOD
PGOOD
SW2
TG2
86.6k
100Ω
100Ω
100k
20k 2.2Ω
0.1µF
4.7µF
0.1µF
0.1µF
LTC3869
10µF ×4
270µF 16V
0.1µF
CMDSH-3
M4 RJK0330DPB M3 RJK0305DPB
M2 RJK0330DPB ×2
M1 RJK0305DPB
CMDSH-3
0.1µF
L1
0.44µH
L2
0.44µH
0.001Ω
1%
V
OUT
1.2V 40A V
IN
4.5V TO 14V
+
C
OUT1
100µF 6.3V ×4
C
OUT2
330µF 2.5V ×4
+
100Ω100Ω
0.001Ω
1%
2200pF
5.9k
100pF
20k
L1, L2: PULSE PA0513.441NLT C
OUT1
: MURATA GRM31CR60J107ME39L
C
OUT2
: SANYO 2R5TPE330M9