Datasheet

LTC3869/LTC3869-2
37
38692fa
For more information www.linear.com/LTC3869
Typical applicaTions
Figure 19. Small Size, Dual Phase 0.9V, 50A Supply, f
SW
= 400kHz
3869 F19
TG1
BOOST1
PGND1
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
–
1nF
SENSE1
–
SENSE1
+
RUN1
FREQ
MODE/PLLIN
SW1
RUN
I
LIM
PGOOD
PGOOD
SW2
TG2
100k
100Ω
100Ω
100k
10k 2.2Ω
0.1µF
4.7µF
0.1µF
0.1µF
LTC3869
10µF ×4
270µF 16V
0.1µF
400kHz
CMDSH-3
M4 RJK0330DPB ×2
M3 RJK0305DPB ×2
M2 RJK0330DPB ×2
M1 RJK0305DPB ×2
CMDSH-3
1µF
L1
0.23µH
L2
0.23µH
0.001Ω
1%
V
OUT
0.9V 50A V
IN
4.5V TO 14V
+
C
OUT1
100µF 6.3V ×2
C
OUT2
330µF 2.5V ×4
+
100Ω100Ω
0.001Ω
1%
2700pF
5.1k
220pF
20k
L1, L2: PULSE PA0513.441NLT C
OUT1
: MURATA GRM31CR60J107ME39L
C
OUT2
: SANYO 2R5TPE330M9