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Part Name
Description
LTC3707 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC3707
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
Linear Technology
'LTC3707' PDF : 32 Pages
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W
FU CTIO AL DIAGRA
LTC3707
FREQSET
1.19V
1M
OSCILLATOR
CLK1
CLK2
PGOOD
V
SEC
3V
0.18
µ
A
R6
FCB
R5
4.5V –
+
+
–
0.86V
V
FB
0.74V
BINH
FCB
3.3V
OUT
0.8V
V
REF
V
IN
EXTV
CC
INTV
CC
+
5V
SGND
4.8V +
–
STBYMD
5V
LDO
REG
INTERNAL
SUPPLY
DUPLICATE FOR SECOND
CONTROLLER CHANNEL
BOOST
DROP
OUT
DET
SQ
RQ
BOT FCB
TOP ON
TG
TOP
SW
SWITCH
LOGIC
INTV
CC
BG
BOT
0.55V
+B
–
SHDN
PGND
I1
I2
–
– ++ –
+
0.86V
3mV
4(V
FB
)
SLOPE
COMP
45k
45k
2.4V
EA
OV
INTV
CC
30k
SENSE
+
30k
SENSE
–
V
FB
0.80V
V
OSENSE
1.2
µ
A
6V
0.86V
SHDN
RST
4(V
FB
)
RUN
SOFT-
START
I
TH
RUN/SS
INTV
CC
V
IN
D
B
C
B
+
D
1
C
IN
C
OUT
R
SENSE
D
SEC
C
SEC
R2
R1
C
C
C
C2
R
C
C
SS
V
OUT
3707 FD/F02
Figure 2
3707f
9
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