ltm4616 Linear Technology Corporation, ltm4616 Datasheet - Page 21

• Manufacturer Part Number: ltm4616
• Description: Dual 8a Per Channel Low Vin Dc/dc ?module
• Manufacturer: Linear Technology Corporation

APPLICATIONS INFORMATION
TRACK INPUT
3V TO 6.5V
OR 3V
V
IN
IN
BSEL: HIGH = 10%
OE
H
H
L
FLOAT = 15%
LOW = 5%
IN
H
L
X
10μF
6.3V
10μF
6.3V
10μF
6.3V
10μF
6.3V
OUT
H
L
Z
V
SV
RUN1
PLLLPF1
MODE1
PHMODE1
TRACK1
V
SV
RUN2
PLLLPF2
MODE2
PHMODE2
TRACK2
V
SV
RUN1
PLLLPF1
MODE1
PHMODE1
TRACK1
V
SV
RUN2
PLLLPF2
MODE2
PHMODE2
TRACK2
MGN
V
IN1
IN2
IN1
IN2
H
L
IN
IN1
IN2
IN1
IN2
A1, A2 PERICOM P174ST1G126CEX
TOSHIBA TC75Z126AFE
/2
MARGIN VALUE
+ Value of BSEL Selection
– Value of BSEL Selection
No Margin
SW1
SW2
SW1
SW2
Figure 21. Four Phase in Parallel, 1.2V at 32A
CLKIN1
CLKIN1
SGND1
SGND1
CLKOUT1 CLKIN2
CLKOUT1 CLKIN2
LTM4616
GND1
LTM4616
GND1
SGND2
SGND2
CLKOUT2
CLKOUT2
GND2
GND2
PGOOD1
PGOOD2
PGOOD1
PGOOD2
ITHM1
BSEL1
ITHM2
BSEL2
ITHM1
BSEL1
ITHM2
BSEL2
MGN1
MGN2
MGN1
MGN2
V
V
V
V
OUT1
ITH1
OUT2
ITH2
OUT1
ITH1
OUT2
ITH2
4616 F21
FB1
FB2
FB1
FB2
OPTIONAL MARGINING CIRCUIT,
IF NOT USED TIE THE MGN PINS TO V
2.47k
+
SANYO POSCAP
C5
22μF
6.3V
R1
50k
R2
50k
+
10mΩ
+
+
+
6 PIN SC70 PACKAGE
OUT
C1
470μF
6.3V
C2
470μF
6.3V
C3
470μF
6.3V
GND
A1
V
C4
22μF
6.3V
+
LTM4616
3V TO 6.6V
–
+
1.2V AT 32A
V
V
IN
I
I
OUT
OE
IN
OUT
21
4616f