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LTM4644/LTM4644-1
BLOCK DIAGRAM
60.4k
0.1µF
40.2k
0.1µF
30.1k
0.1µF
90.9k
0.1µF
*LTM4644-1 DOES NOT INCLUDE 60.4k RESISTOR
8
V
OUT1
60.4k
(*LTM4644 ONLY)
FB1
INTV
CC1
1µF
MODE1
POWER CONTROL
TRACK/SS1
RUN1
COMP1
INTERNAL
INTERNAL
COMP
FILTER
FREQ1
162k
V
OUT2
60.4k
(*LTM4644 ONLY)
FB2
INTV
CC2
1µF
MODE2
POWER CONTROL
TRACK/SS2
RUN2
COMP2
INTERNAL
INTERNAL
COMP
FILTER
FREQ2
162k
V
OUT3
60.4k
(*LTM4644 ONLY)
FB3
INTV
CC3
1µF
MODE3
POWER CONTROL
TRACK/SS3
RUN3
COMP3
INTERNAL
INTERNAL
COMP
FILTER
FREQ3
162k
V
OUT4
60.4k
(*LTM4644 ONLY)
FB4
INTV
CC4
1µF
MODE4
POWER CONTROL
TRACK/SS4
RUN4
COMP4
INTERNAL
INTERNAL
COMP
FILTER
FREQ4
162k
For more information
CLKIN
0.22µF
1µH
1µF
CLKOUT
0.22µF
CLKIN
1µH
1µF
CLKOUT
0.22µF
CLKIN
1µH
1µF
CLKOUT
0.22µF
CLKIN
1µH
1µF
CLKOUT
CLKOUT
www.analog.com
100k
PGOOD1
INTV
CC1
SV
IN1
V
V
IN1
IN
4V TO 14V
10µF
V
V
OUT1
OUT1
1.2V
4A
47µF
GND
SGND
GND
100k
PGOOD2
INTV
CC2
SV
IN2
V
IN2
V
IN
10µF
V
OUT2
V
OUT2
1.5V
4A
47µF
GND
100k
PGOOD3
INTV
CC3
SV
IN3
V
IN3
V
IN
10µF
V
V
OUT3
OUT3
1.8V
4A
47µF
GND
100k
PGOOD4
INTV
CC4
SV
IN4
V
IN4
V
IN
10µF
V
V
OUT4
OUT4
1V
4A
47µF
GND
TEMP
4644 BD
Rev. G
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