* SPICE netlist
V1 IN 0 12
R1 IN N002 150K
R2 N002 0 100K
C1 OUT1 0 47 x2 V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C4532X5ROJ47@M" type="X5R"
Rload1 OUT1 0 .825
C2 N003 0 .001
Rload2 OUT2 0 .625
R4 N004 0 19.1K
C4 N005 0 .001
Rload3 OUT3 0 .375
C6 N007 0 .001
Rload4 OUT4 0 .3
C8 N009 0 .001
C3 OUT2 0 47 x2 V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C4532X5ROJ47@M" type="X5R"
C5 OUT3 0 47 x2 V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C4532X5ROJ47@M" type="X5R"
C7 OUT4 0 47 x2 V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C4532X5ROJ47@M" type="X5R"
XU1 NC_01 IN 0 N001 N003 NC_02 N002 NC_03 OUT1 0 NC_04 0 IN IN IN IN IN NC_05 N002 N004 NC_06 N005 NC_07 NC_08 OUT2 N002 0 N006 N007 NC_09 NC_10 OUT3 0 IN IN NC_11 N002 N008 N009 NC_12 NC_13 OUT4 0 NC_14 LTM4644-1 ;pnba IntVcc1)SVin1)Mode1)FB1)Track/SS1)Comp1)Run1)Pgood1)Vout1)GND)CLKIn)SGND)Vin1)SVin2)Vin2)SVin3)Vin3)IntVcc2)Run2)FB2)IntVcc3)Track/SS2)Pgood2)Comp2)Vout2)Run3)Mode2)FB3)Track/SS3)Pgood3)Comp3)Vout3)Mode3)SVin4)Vin4)IntVcc4)Run4)FB4)Track/SS4)Pgood4)Comp4)Vout4)Mode4)CLKOut
R7 OUT2 N004 60.4K
R8 N006 0 40.2K
R9 OUT3 N006 60.4K
R10 N008 0 60.4K
R11 OUT4 N008 60.4K
R12 N001 0 13.3K
R13 OUT1 N001 60.4K
.tran .3m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1584 1136
WIRE -696 -568 -792 -568
WIRE -568 -568 -696 -568
WIRE -552 -568 -568 -568
WIRE 584 -568 440 -568
WIRE 696 -568 584 -568
WIRE 792 -568 696 -568
WIRE -792 -552 -792 -568
WIRE 584 -552 584 -568
WIRE 696 -552 696 -568
WIRE 792 -552 792 -568
WIRE -696 -472 -696 -568
WIRE -568 -472 -568 -568
WIRE -552 -472 -568 -472
WIRE 584 -472 440 -472
WIRE -792 -456 -792 -472
WIRE 584 -456 584 -472
WIRE 696 -456 696 -488
WIRE 792 -456 792 -472
WIRE -696 -376 -696 -392
WIRE -600 -376 -696 -376
WIRE -552 -376 -600 -376
WIRE 456 -376 440 -376
WIRE 536 -376 520 -376
WIRE -696 -360 -696 -376
WIRE 584 -360 584 -376
WIRE -568 -280 -568 -472
WIRE -552 -280 -568 -280
WIRE 584 -280 440 -280
WIRE 696 -280 584 -280
WIRE 792 -280 696 -280
WIRE -696 -264 -696 -280
WIRE 584 -264 584 -280
WIRE 696 -264 696 -280
WIRE 792 -264 792 -280
WIRE -568 -184 -568 -280
WIRE -552 -184 -568 -184
WIRE 584 -184 440 -184
WIRE 584 -168 584 -184
WIRE 696 -168 696 -200
WIRE 792 -168 792 -184
WIRE -600 -88 -600 -376
WIRE -552 -88 -600 -88
WIRE 456 -88 440 -88
WIRE 536 -88 520 -88
WIRE 584 -72 584 -88
WIRE -568 8 -568 -184
WIRE -552 8 -568 8
WIRE 600 8 440 8
WIRE 696 8 600 8
WIRE 792 8 696 8
WIRE 600 24 600 8
WIRE 696 24 696 8
WIRE 792 24 792 8
WIRE -568 104 -568 8
WIRE -552 104 -568 104
WIRE 600 104 440 104
WIRE 600 120 600 104
WIRE 696 120 696 88
WIRE 792 120 792 104
WIRE -600 200 -600 -88
WIRE -552 200 -600 200
WIRE 456 200 440 200
WIRE 536 200 520 200
WIRE 600 216 600 200
WIRE -568 296 -568 104
WIRE -552 296 -568 296
WIRE 600 296 440 296
WIRE 696 296 600 296
WIRE 792 296 696 296
WIRE 600 312 600 296
WIRE 696 312 696 296
WIRE 792 312 792 296
WIRE -568 392 -568 296
WIRE -552 392 -568 392
WIRE 600 392 440 392
WIRE 600 408 600 392
WIRE 696 408 696 376
WIRE 792 408 792 392
WIRE -600 488 -600 200
WIRE -552 488 -600 488
WIRE 456 488 440 488
WIRE 536 488 520 488
WIRE 600 504 600 488
WIRE -488 568 -488 552
WIRE -392 568 -392 552
WIRE -296 568 -296 552
WIRE -200 568 -200 552
WIRE -104 568 -104 552
WIRE 376 568 376 552
FLAG -488 568 0
FLAG 376 568 0
FLAG -392 568 0
FLAG -296 568 0
FLAG -200 568 0
FLAG -104 568 0
FLAG -792 -456 0
FLAG -696 -264 0
FLAG -792 -568 IN
FLAG 696 -456 0
FLAG 792 -456 0
FLAG 536 -376 0
FLAG 792 -568 OUT1
FLAG 696 -168 0
FLAG 792 -168 0
FLAG 584 -72 0
FLAG 536 -88 0
FLAG 792 -280 OUT2
FLAG 696 120 0
FLAG 792 120 0
FLAG 536 200 0
FLAG 792 8 OUT3
FLAG 696 408 0
FLAG 792 408 0
FLAG 536 488 0
FLAG 792 296 OUT4
FLAG 600 216 0
FLAG 600 504 0
FLAG 584 -360 0
SYMBOL voltage -792 -568 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res -712 -488 R0
SYMATTR InstName R1
SYMATTR Value 150K
SYMBOL res -712 -376 R0
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL cap 680 -552 R0
SYMATTR Value2 x2
SYMATTR Value 47
SYMATTR InstName C1
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C4532X5ROJ47@M" type="X5R"
SYMBOL res 776 -568 R0
SYMATTR InstName Rload1
SYMATTR Value .825
SYMBOL cap 456 -360 R270
SYMATTR InstName C2
SYMATTR Value .001
SYMBOL res 776 -280 R0
SYMATTR InstName Rload2
SYMATTR Value .625
SYMBOL res 568 -184 R0
SYMATTR InstName R4
SYMATTR Value 19.1K
SYMBOL cap 456 -72 R270
SYMATTR InstName C4
SYMATTR Value .001
SYMBOL res 776 8 R0
SYMATTR InstName Rload3
SYMATTR Value .375
SYMBOL cap 456 216 R270
SYMATTR InstName C6
SYMATTR Value .001
SYMBOL res 776 296 R0
SYMATTR InstName Rload4
SYMATTR Value .3
SYMBOL cap 456 504 R270
SYMATTR InstName C8
SYMATTR Value .001
SYMBOL cap 680 -264 R0
SYMATTR Value2 x2
SYMATTR Value 47
SYMATTR InstName C3
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C4532X5ROJ47@M" type="X5R"
SYMBOL cap 680 24 R0
SYMATTR Value2 x2
SYMATTR Value 47
SYMATTR InstName C5
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C4532X5ROJ47@M" type="X5R"
SYMBOL cap 680 312 R0
SYMATTR Value2 x2
SYMATTR Value 47
SYMATTR InstName C7
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C4532X5ROJ47@M" type="X5R"
SYMBOL PowerProducts\\LTM4644-1 -56 -40 R0
SYMATTR InstName U1
SYMBOL res 568 -280 R0
SYMATTR InstName R7
SYMATTR Value 60.4K
SYMBOL res 584 104 R0
SYMATTR InstName R8
SYMATTR Value 40.2K
SYMBOL res 584 8 R0
SYMATTR InstName R9
SYMATTR Value 60.4K
SYMBOL res 584 392 R0
SYMATTR InstName R10
SYMATTR Value 60.4K
SYMBOL res 584 296 R0
SYMATTR InstName R11
SYMATTR Value 60.4K
SYMBOL res 568 -472 R0
SYMATTR InstName R12
SYMATTR Value 13.3K
SYMBOL res 568 -568 R0
SYMATTR InstName R13
SYMATTR Value 60.4K