ltc3850gn-2 Linear Technology Corporation, ltc3850gn-2 Datasheet - Page 26

• Manufacturer Part Number: ltc3850gn-2
• Description: Dual, 2-phase Synchronous Step-down Switching Controller
• Manufacturer: Linear Technology Corporation

LTC3850-2
APPLICATIONS INFORMATION
26
R
IN
V
IN
C
IN
BOLD LINES INDICATE
HIGH SWITCHING
CURRENT. KEEP LINES
TO A MINIMUM LENGTH.
f
IN
Figure 12. Recommended Printed Circuit Layout Diagram
I
V
SENSE1
SENSE1
PLLLPF
MODE/PLLIN
RUN1
RUN2
SGND
SENSE2
SENSE2
V
I
TK/SS2
TH1
TH2
FB1
FB2
LTC3850-2
+
–
–
+
Figure 13. Branch Current Waveforms
BOOST1
BOOST2
PGOOD
EXTV
TK/SS1
INTV
PGND
SW1
SW2
BG1
BG2
TG1
TG2
V
CC
CC
IN
SW1
SW2
D1
D2
R
PGOOD
PU2
L1
L2
C
C
V
C
B2
B1
PULL-UP
INTVCC
C
VIN
R
R
SENSE1
SENSE2
C
C
CERAMIC
OUT1
OUT2
V
R
M1
M3
IN
IN
1μF
V
V
OUT1
OUT2
CERAMIC
M2
M4
L1
1μF
C
L2
IN
R
R
SENSE
SENSE
C
C
D1
OUT1
OUT2
D2
38502 F12
38502 F13
R
R
L1
L2
V
GND
V
OUT1
OUT2
38502f