LTM4616
APPLICATIONS INFORMATION
SW1
CLKIN1 CLKOUT1 CLKIN2 CLKOUT2
V
V
IN
OUT
V
V
IN1
OUT1
3V TO 5.5V
1.2V AT 32A
+
C1
470µF
6.3V
10µF
6.3V
SV
FB1
IN1
2.47k
RUN1
I
TH1
PLLLPF1
MODE1
I
THM1
PGOOD1
BSEL1
MGN1
SANYO POSCAP
10mΩ
PHMODE1
TRACK1
TRACK INPUT
OR V
IN
LTM4616
V
V
IN2
OUT2
FB2
+
C2
470µF
6.3V
10µF
6.3V
SV
IN2
RUN2
I
TH2
PLLLPF2
MODE2
PHMODE2
TRACK2
I
THM2
PGOOD2
BSEL2
MGN2
SW2
SGND1
GND1
SGND2
GND2
SW1
CLKIN1 CLKOUT1 CLKIN2 CLKOUT2
V
IN1
V
OUT1
+
C3
470µF
6.3V
10µF
6.3V
SV
FB1
IN1
RUN1
I
TH1
PLLLPF1
MODE1
I
THM1
PGOOD1
BSEL1
MGN1
PHMODE1
TRACK1
LTM4616
V
V
IN2
OUT2
FB2
+
+
C5
22µF
6.3V
C4
22µF
6.3V
10µF
6.3V
SV
IN2
RUN2
I
TH2
PLLLPF2
MODE2
PHMODE2
TRACK2
I
THM2
PGOOD2
BSEL2
MGN2
V
IN
3V TO 5.5V
A1
+
R1
SW2
SGND1
GND1
SGND2
GND2
V
–
+
50k
4616 F21
I
I
OE
IN
OUT
R2
50k
GND
BSEL: HIGH = 10%
A1, A2 PERICOM PI74ST1G126CEX
TOSHIBA TC7SZ126AFE
6 PIN SC70 PACKAGE
FLOAT = 15%
LOW = 5%
OPTIONAL MARGINING CIRCUIT,
IF NOT USED TIE THE MGN PINS
TO A VOLTAGE EQUAL TO HALF
OE
IN
OUT
MGN MARGIN VALUE
OF THE RESPECTIVE V
IN
H
H
L
H
L
X
H
L
Z
H
L
+ Value of BSEL Selection
– Value of BSEL Selection
VIN/2 No Margin
Figure 21. Four Phase in Parallel, 1.2V at 32A
4616fe
24
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LINEAR_DIMENSIONS [ Linear Dimensions ]
