LTC3708 LINER [Linear Technology], LTC3708 Datasheet - Page 25

• Manufacturer Part Number: LTC3708
• Description: Fast 2-Phase, No RSENSE Buck Controller with Output Tracking
• Manufacturer: LINER [Linear Technology]

APPLICATIONS INFORMATION
• Connect the decoupling capacitors C
• Connect the decoupling capacitor C
close to the DRV
C
V
components close to the I
fi lter close to the EXTLPF and INTLPF pins. Connect the
I
ON
B2
CC
decoupling capacitor close to the I
pin and SGND plane. Connect the EA compensation
close to the BOOST and SW pins.
V
IN
CC
and PGND pins. Connect C
M2
M1
TH
L1
L2
pins. Connect the PLL loop
M3
M4
C
C
OUT1
OUT2
D2
VCC
D1
C
C
IN1
IN2
ON
right across the
DR1
Figure 14. LTC3708 Layout Diagram
pins.
and C
B1
5V
and
DR2
R
R
ON1
ON2
C
C
B1
B2
• Flood all unused areas on all layers with copper.
C
C
DR1
DR2
Flooding will reduce the temperature rise of the power
components. You can connect the copper area to any
DC net (V
system).
TG1
SW1
BOOST
SENSE1
SENSE1
PGND1
BG1
DRV
BG2
PGND2
SENSE2
SENSE2
BOOST2
SW2
TG2
FCB
CC
LTC3708
+
–
–
+
TRACK1
RUN/SS
TRACK2
IN
PGOOD
EXTLPF
INTLPF
V
V
SGND
RNG1
RNG2
, V
V
V
I
I
I
I
ON1
V
ON2
TH1
TH2
FB1
FB2
CC
OUT
, GND or to any other DC rail in your
C
VCC
C
SS
5V
R1
R3
R4
R2
3708 F15
LTC3708
25
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