* SPICE netlist
V1 IN 0 12
C1 OUT3 0 100 x2 Rser=3m
R1 OUT3 0 0.075
R2 0 N002 121k
C2 0 N006 1n
C3 0 OUT0 100 x2 Rser=3m
R4 N001 0 90.9k
C4 N005 0 1n
C5 OUT2 0 47 x2
R5 OUT2 0 0.36
R6 0 N008 30.1K
C6 N009 0 220p
C7 N010 0 220p
C8 OUT1 0 47 x2
R7 OUT1 0 0.24
R8 N007 0 60.4k
C12 IN 0 100 x2 Rser=10m
C10 0 IN 22 x4
R3 OUT0 0 0.082
XU1 NC_01 OUT0 IN NC_02 NC_03 IN 0 NC_04 N008 N010 NC_05 OUT0 OUT2 N003 NC_06 NC_07 OUT2 IN NC_08 OUT1 IN IN OUT1 N001 N002 NC_09 N009 N007 MP_10 MP_11 N005 NC_12 N003 NC_13 NC_14 NC_15 NC_16 0 N006 NC_17 N004 NC_18 NC_19 NC_20 NC_21 0 OUT3 OUT3 N004 LTM4673 ;pnba Pgood1)Vosns0+)Run1)Mode12)Freq12)Run2)GND)Pgood2)FB2)SS2)Comp2)Vout0)Vout2)Comp0b)Intvcc3)Intvcc0)Vosns2)Run0)IntVcc12)Vosns1)Vin)Run3)Vout1)FB0)FB3)Comp1)SS1)FB1)))SS0)Pgood0)Comp0a)Freq0)Mode0)Clkout0)Phmode0)Vosns0-)SS3)Pgood3)Comp3a)Freq3)Mode3)Clkout3)Phmode3)Vosns3-)Vosns3+)Vout3)Comp3b
.tran 0.3m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1696 1616
WIRE -736 -808 -832 -808
WIRE -624 -808 -736 -808
WIRE -528 -808 -624 -808
WIRE 32 -808 -528 -808
WIRE 592 -808 32 -808
WIRE -832 -792 -832 -808
WIRE -736 -792 -736 -808
WIRE -624 -792 -624 -808
WIRE 32 -760 32 -808
WIRE -736 -712 -736 -728
WIRE -624 -712 -624 -728
WIRE -624 -712 -736 -712
WIRE -832 -696 -832 -712
WIRE -624 -696 -624 -712
WIRE -528 -696 -528 -808
WIRE -480 -696 -528 -696
WIRE 592 -696 592 -808
WIRE 592 -696 544 -696
WIRE -736 -600 -832 -600
WIRE -576 -600 -736 -600
WIRE -480 -600 -576 -600
WIRE 640 -600 544 -600
WIRE 704 -600 640 -600
WIRE 848 -600 704 -600
WIRE -832 -584 -832 -600
WIRE -736 -584 -736 -600
WIRE 704 -584 704 -600
WIRE 848 -568 848 -600
WIRE -576 -504 -576 -600
WIRE -480 -504 -576 -504
WIRE 640 -504 640 -600
WIRE 640 -504 544 -504
WIRE 704 -472 704 -520
WIRE 704 -472 656 -472
WIRE 704 -456 704 -472
WIRE 848 -456 848 -488
WIRE -736 -424 -736 -520
WIRE -624 -424 -736 -424
WIRE -832 -408 -832 -504
WIRE -736 -408 -736 -424
WIRE -624 -408 -624 -424
WIRE -480 -408 -624 -408
WIRE 656 -408 656 -472
WIRE 656 -408 544 -408
WIRE -656 -312 -688 -312
WIRE -480 -312 -576 -312
WIRE 624 -312 544 -312
WIRE 736 -312 704 -312
WIRE -480 -216 -496 -216
WIRE 560 -216 544 -216
WIRE -496 -120 -496 -216
WIRE -480 -120 -496 -120
WIRE 560 -120 560 -216
WIRE 560 -120 544 -120
WIRE -608 72 -656 72
WIRE -480 72 -544 72
WIRE 624 72 544 72
WIRE 720 72 688 72
WIRE -528 248 -528 -696
WIRE -480 248 -528 248
WIRE 592 248 592 -696
WIRE 592 248 544 248
WIRE -672 344 -768 344
WIRE -528 344 -672 344
WIRE -480 344 -528 344
WIRE 592 344 544 344
WIRE 704 344 592 344
WIRE 800 344 704 344
WIRE -768 360 -768 344
WIRE -672 360 -672 344
WIRE 704 360 704 344
WIRE 800 360 800 344
WIRE -528 440 -528 344
WIRE -480 440 -528 440
WIRE 592 440 592 344
WIRE 592 440 544 440
WIRE -768 456 -768 440
WIRE -672 456 -672 424
WIRE 704 456 704 424
WIRE 800 456 800 440
WIRE -608 536 -640 536
WIRE -480 536 -528 536
WIRE 576 536 544 536
WIRE 688 536 656 536
WIRE 480 712 480 696
WIRE -80 728 -80 696
WIRE 144 728 144 696
WIRE -80 808 -80 792
WIRE 144 808 144 792
FLAG -832 -808 IN
FLAG 480 712 0
FLAG 704 -456 0
FLAG 848 -456 0
FLAG 736 -312 0
FLAG 720 72 0
FLAG -736 -408 0
FLAG -688 -312 0
FLAG -656 72 0
FLAG 704 456 0
FLAG 800 456 0
FLAG 688 536 0
FLAG -80 808 0
FLAG 144 808 0
FLAG -672 456 0
FLAG -768 456 0
FLAG -640 536 0
FLAG 848 -600 OUT3
FLAG -768 344 OUT1
FLAG 800 344 OUT2
FLAG -624 -696 0
FLAG -832 -408 0
FLAG -832 -600 OUT0
FLAG -832 -696 0
SYMBOL voltage -832 -808 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL cap 688 -584 R0
SYMATTR InstName C1
SYMATTR Value 100
SYMATTR Value2 x2
SYMATTR SpiceLine Rser=3m
SYMBOL res 832 -584 R0
SYMATTR InstName R1
SYMATTR Value 0.075
SYMBOL res 720 -328 R90
SYMATTR InstName R2
SYMATTR Value 121k
SYMBOL cap 688 56 R90
SYMATTR InstName C2
SYMATTR Value 1n
SYMBOL cap -720 -520 R180
SYMATTR InstName C3
SYMATTR Value 100
SYMATTR Value2 x2
SYMATTR SpiceLine Rser=3m
SYMBOL res -560 -328 R90
SYMATTR InstName R4
SYMATTR Value 90.9k
SYMBOL cap -544 56 R90
SYMATTR InstName C4
SYMATTR Value 1n
SYMBOL cap 688 360 R0
SYMATTR Value2 x2
SYMATTR InstName C5
SYMATTR Value 47
SYMBOL res 784 344 R0
SYMATTR InstName R5
SYMATTR Value 0.36
SYMBOL res 672 520 R90
SYMATTR InstName R6
SYMATTR Value 30.1K
SYMBOL cap -96 728 R0
SYMATTR InstName C6
SYMATTR Value 220p
SYMBOL cap 128 728 R0
SYMATTR InstName C7
SYMATTR Value 220p
SYMBOL cap -688 360 R0
SYMATTR Value2 x2
SYMATTR InstName C8
SYMATTR Value 47
SYMBOL res -784 344 R0
SYMATTR InstName R7
SYMATTR Value 0.24
SYMBOL res -512 520 R90
SYMATTR InstName R8
SYMATTR Value 60.4k
SYMBOL polcap -640 -792 R0
SYMATTR Value2 x2
SYMATTR InstName C12
SYMATTR Value 100
SYMATTR SpiceLine Rser=10m
SYMBOL cap -720 -728 R180
SYMATTR InstName C10
SYMATTR Value 22
SYMATTR Value2 x4
SYMBOL res -848 -600 R0
SYMATTR InstName R3
SYMATTR Value 0.082
SYMBOL LTM4673 32 -24 R0
SYMATTR InstName U1