LTC3703 Linear Technology, LTC3703 Datasheet - Page 29

• Manufacturer Part Number: LTC3703
• Description: 100V Synchronous Switching Regulator Controller
• Manufacturer: Linear Technology

APPLICATIO S I FOR ATIO
8. For applications with multiple switching power convert-
ers connected to the same input supply, make sure that the
input filter capacitor for the LTC3703 is not shared with
other converters. AC input current from another converter
could cause substantial input voltage ripple, and this could
C
R
U
C2
C2
C
C3
R1
R2
R
U
C1
C
C1
R
R
C
MAX
SET
W
SS
Figure 20. LTC3703 Buck Converter Suggested Layout
1
2
3
4
5
6
7
8
MODE/SYNC
FSET
COMP
FB
I
INV
RUN/SS
GND
MAX
LTC3703
U
BGRTN
BOOST
DRV
V CC
SW
V
BG
TG
CC
IN
16
15
14
13
12
11
10
9
C
X5R
VCC
interfere with the operation of the LTC3703. A few inches
of PC trace or wire (L
LTC3703 and the actual source V
prevent input noise interference problems.
V
CC
C
X5R
R
DRVCC
F
D
C
M2
B
M1
B
V
IN
D1
+
C
IN
100nH) between C
L1
C
OUT
+
IN
should be sufficient to
3703 F18
LTC3703
V
OUT
+
–
IN
29
of the
3703f