* SPICE netlist
V1 IN 0 12
C1 OUT1 0 330 V=6.3 Irms=5 Rser=0.01 Lser=0 mfg="KEMET" pn="T530D337M006ASE010" type="Tantalum"
Rload1 OUT1 0 .138
C2 OUT1 0 100 x3 V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C575OX5ROJI07M" type="X5R"
R1 N009 0 6.34K
C3 OUT0 0 330 V=6.3 Irms=5 Rser=0.01 Lser=0 mfg="KEMET" pn="T530D337M006ASE010" type="Tantalum"
Rload0 OUT0 0 .077
C4 OUT0 0 100 x3 V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C575OX5ROJI07M" type="X5R"
R2 N011 N001 10K
R3 N001 N003 10K
R4 N001 N002 10K
XU1 OUT0 0 N004 N006 N010 N005 N007 N011 IN NC_01 OUT0 N005 N007 N003 N002 N010 NC_02 NC_03 N009 NC_04 0 NC_05 N008 IN N001 N008 OUT1 NC_06 NC_07 OUT1 N004 N006 NC_08 0 IN NC_09 NC_10 NC_11 NC_12 MP_13 0 LTM4676A VIN_ON=5.5 VIN_OFF=5 Vout_0=1 Vout_1=1.8 Ilim0_range=1 Ilim1_range=1 OC_limit0=1 OC_limit1=1 Mode_ll=2 Fault_response=0 Retry_delay=.1m Freq=500K PHs_0=0 PHs_1=180 Ton0_delay=.3m Ton0_rise=.5m Ton1_delay=.3m Ton1_rise=.5m Toff0_delay=.2m Toff0_fall=.3m Toff1_delay=.2m Toff1_fall=.3m Vout0_range=0 Vout1_range=0 ;pnba Vosns0+)Vosns0-)Isns1a+)Isns1a-)COMP0a)Isns0b+)Isns0a-)SYNC)Vin0)SNUB0)Vout0)Isns0a+)Isns0b-)Run0)Run1)COMP0b)Fswphcfg)Vout0_cfg)Vout1_cfg)Vtrim0_cfg)Vtrim1_cfg)VDD25)COMP1b)Vin1)VDD33)COMP1a)Vosns1)SNUB1)SW1)Vout1)Isns1b+)Isns1b-)IntVcc)PGND)SVin)Vorb0+)Vorb0-)Vorb1)SW0))SGND
.tran 1.3m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1488 1616
WIRE 216 -808 -296 -808
WIRE 344 -808 216 -808
WIRE 472 -808 344 -808
WIRE -296 -792 -296 -808
WIRE 344 -792 344 -808
WIRE -392 -696 -504 -696
WIRE -168 -696 -392 -696
WIRE 440 -696 -168 -696
WIRE -504 -680 -504 -696
WIRE -296 -680 -296 -712
WIRE -168 -680 -168 -696
WIRE 216 -680 216 -808
WIRE 344 -680 344 -712
WIRE -392 -616 -392 -696
WIRE -376 -616 -392 -616
WIRE 440 -616 440 -696
WIRE 440 -616 424 -616
WIRE -504 -584 -504 -600
WIRE -600 -328 -728 -328
WIRE -488 -328 -600 -328
WIRE -408 -328 -488 -328
WIRE -376 -328 -408 -328
WIRE 456 -328 424 -328
WIRE 520 -328 456 -328
WIRE 616 -328 520 -328
WIRE 744 -328 616 -328
WIRE -728 -312 -728 -328
WIRE -600 -312 -600 -328
WIRE -488 -312 -488 -328
WIRE 520 -312 520 -328
WIRE 616 -312 616 -328
WIRE 744 -312 744 -328
WIRE -376 -232 -392 -232
WIRE 440 -232 424 -232
WIRE -728 -216 -728 -232
WIRE -600 -216 -600 -248
WIRE -488 -216 -488 -248
WIRE 520 -216 520 -248
WIRE 616 -216 616 -248
WIRE 744 -216 744 -232
WIRE -392 -136 -392 -232
WIRE -376 -136 -392 -136
WIRE 440 -136 440 -232
WIRE 440 -136 424 -136
WIRE -376 -40 -392 -40
WIRE 440 -40 424 -40
WIRE -392 56 -392 -40
WIRE -376 56 -392 56
WIRE 440 56 440 -40
WIRE 440 56 424 56
WIRE -408 152 -408 -328
WIRE -376 152 -408 152
WIRE 456 152 456 -328
WIRE 456 152 424 152
WIRE -376 344 -392 344
WIRE 440 344 424 344
WIRE -392 440 -392 344
WIRE -376 440 -392 440
WIRE -472 536 -488 536
WIRE -376 536 -392 536
WIRE 440 536 424 536
WIRE -376 632 -408 632
WIRE 440 632 440 536
WIRE 440 632 424 632
WIRE -296 712 -296 696
WIRE -168 712 -168 696
WIRE 88 712 88 696
WIRE -296 808 -296 792
WIRE 472 808 472 -808
WIRE 472 808 -296 808
FLAG -504 -584 0
FLAG -728 -216 0
FLAG -728 -328 OUT1
FLAG -488 -216 0
FLAG -600 -216 0
FLAG -504 -696 IN
FLAG -488 536 0
FLAG -408 632 0
FLAG -168 712 0
FLAG 88 712 0
FLAG 744 -216 0
FLAG 744 -328 OUT0
FLAG 520 -216 0
FLAG 616 -216 0
FLAG 440 344 0
SYMBOL voltage -504 -696 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL polcap -504 -312 R0
SYMATTR Value 330
SYMATTR InstName C1
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=6.3 Irms=5 Rser=0.01 Lser=0 mfg="KEMET" pn="T530D337M006ASE010" type="Tantalum"
SYMBOL res -744 -328 R0
SYMATTR InstName Rload1
SYMATTR Value .138
SYMBOL cap -616 -312 R0
SYMATTR Value2 x3
SYMATTR Value 100
SYMATTR InstName C2
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C575OX5ROJI07M" type="X5R"
SYMBOL res -376 520 R90
SYMATTR InstName R1
SYMATTR Value 6.34K
SYMBOL polcap 504 -312 R0
SYMATTR Value 330
SYMATTR InstName C3
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=6.3 Irms=5 Rser=0.01 Lser=0 mfg="KEMET" pn="T530D337M006ASE010" type="Tantalum"
SYMBOL res 728 -328 R0
SYMATTR InstName Rload0
SYMATTR Value .077
SYMBOL cap 600 -312 R0
SYMATTR Value2 x3
SYMATTR Value 100
SYMATTR InstName C4
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C575OX5ROJI07M" type="X5R"
SYMBOL res -312 696 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL res 328 -808 R0
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL res -312 -808 R0
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL PowerProducts\\LTM4676A 24 8 R0
SYMATTR InstName U1
SYMATTR SpiceLine VIN_ON=5.5 VIN_OFF=5 Vout_0=1 Vout_1=1.8 Ilim0_range=1 Ilim1_range=1 OC_limit0=1 OC_limit1=1 Mode_ll=2 Fault_response=0 Retry_delay=.1m