ltm4601ahv Linear Technology Corporation, ltm4601ahv Datasheet - Page 23

• Manufacturer Part Number: ltm4601ahv
• Description: 12a, 28vin Dc/dc ?module With Pll, Output Tracking And Margining
• Manufacturer: Linear Technology Corporation

APPLICATIONS INFORMATION
0.1μF
118k
1%
C1
1
2
3
V
GND
SET
OSCILLATOR
LTC6908-1
+
2-PHASE
OUT1
OUT2
MOD
6
5
4
6V TO 28V
V
IN
*C5 OPTIONAL TO REDUCE ANY LC RINGING.
NOT NEEDED FOR LOW INDUCTANCE PLANE CONNECTION
+
C8
10μF
35V
2x
C5*
100μF
35V
10μF
35V
Figure 21. 2-Phase Parallel, 3.3V at 20A Design
PGOOD
C2
2x
V
OUT
R2
100k
392k
392k
MARGIN
R1
5%
100k
R4
PGOOD
MPGM
RUN
COMP
INTV
DRV
PGOOD
MPGM
RUN
COMP
INTV
DRV
CC
CC
CC
CC
SGND
SGND
V
V
IN
IN
LTM4601AHV
LTM4601AHV
PLLIN
PGND
PLLIN
PGND
MARGIN CONTROL
TRACK/SS
TRACK/SS
CLOCK SYNC
0° PHASE
CLOCK SYNC
180° PHASE
f
f
V
DIFFV
SET
V
DIFFV
SET
TRACK/SS CONTROL
OUT_LCL
OUT_LCL
MARG0
MARG1
MARG0
MARG1
V
V
V
V
OSNS
OSNS
OSNS
OSNS
V
V
OUT
OUT
OUT
OUT
V
V
FB
FB
+
–
+
–
C6 220pF
C7
0.033μF
TRACK/SS CONTROL
4601AHV F21
6.65k
R
SET
LTM4601AHV
100pF
REFER TO
C3
22μF
6.3V
TABLE 2
N = NUMBER OF PHASES
V
470μF
OUT
C3
22μF
6.3V
6.3V
REFER TO
C4
TABLE 2
= 0.6V
+
+
60.4k
23
N
4601ahvf
R
SET
V
3.3V
20A
C4
470μF
6.3V
+ R
OUT
SET