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LTC3707IGN Datasheet(PDF) 9 Page - Linear Technology

Part # LTC3707IGN
Description  High Effi ciency, 2-Phase Synchronous Step-Down Switching Regulator
PDF  32 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3707IGN Datasheet(HTML) 9 Page - Linear Technology

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LTC3707
9
3707fb
FUNCTIONAL DIAGRAM
SWITCH
LOGIC
–
+
0.8V
4.8V
5V
VIN
4.5V
BINH
CLK2
CLK1
0.18μA
R6
R5
+
–
FCB
+
–
–
+
–
+
–
+
VREF
INTERNAL
SUPPLY
3.3VOUT
VSEC
3V
FCB
PGOOD
EXTVCC
INTVCC
SGND
STBYMD
+
5V
LDO
REG
SW
SHDN
0.55V
TOP
BOOST
TG
CB
CIN
D1
DB
PGND
BOT
BG
INTVCC
INTVCC
VIN
+
CSEC
COUT
VOUT
3707 FD/F02
DSEC
RSENSE
R2
VOSENSE
DROP
OUT
DET
RUN
SOFT-
START
BOT
TOP ON
S
R
Q
Q
OSCILLATOR
FREQSET
FCB
EA
0.86V
0.80V
OV
VFB
1.2μA
6V
R1
–
+
+
–
0.74V
0.86V
VFB
+
–
RC
4(VFB)
RST
SHDN
RUN/SS
ITH
CC
CC2
CSS
1.19V
1M
4(VFB)
0.86V
SLOPE
COMP
3mV
+
–
–
+
SENSE–
SENSE+
INTVCC
30k
45k
2.4V
45k
30k
I1
I2
B
DUPLICATE FOR SECOND
CONTROLLER CHANNEL
+
–
–
+
Figure 2



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