* SPICE netlist
V1 IN 0 30
C1 0 N001 1
MQ1 IN N002 N004 N004 RJK0305DPB
MQ2 N004 N008 0 0 RJK0301DPB
L1 N007 OUT0 6.82 Rser=4.13m
C2 N005 N004 .1
D1 N001 N005 CMDSH2-3
C3 N011 OUT0 .22
R1 N011 N007 7.5K
C5 OUT1 0 530 Rser=5m
R2 OUT1 0 .33
MQ3 IN N003 N007 N007 RJK0305DPB
MQ4 N007 N009 0 0 RJK0301DPB
L2 N004 OUT1 3.1 Rser=2m
C7 N006 N007 .1
D2 N001 N006 CMDSH2-3
C8 N010 OUT1 .22
R11 N004 N010 6.81K
C9 OUT0 0 530 Rser=5m
R12 OUT0 0 1
C4 N013 0 220p
C6 N015 0 2.2n
C10 N012 0 220p
C11 N014 0 4.7n
R3 N016 N020 10K
R4 N019 N020 4.99K
R5 N018 N021 24.9K
R6 N021 0 11.3K
R7 N017 N020 10K
C12 N018 0 1
C13 N020 0 1
XU1 OUT0 0 N010 OUT1 N015 N011 OUT0 N019 NC_01 N013 N012 MP_02 MP_03 N017 N016 MP_04 N021 NC_05 NC_06 MP_07 MP_08 N018 MP_09 MP_10 N020 N014 OUT1 MP_11 N004 N002 N005 N008 N001 0 IN N009 N006 N003 N007 MP_12 0 LTC3886 Vout_0=12 Vout_1=5 Ilim0_range=1 Ilim1_range=1 OC_limit0=1 OC_limit1=1 Mode_ll=2 Fault_response=0 Retry_delay=.1m gm0=3m gm1=3m Rth0=5k Rth1=5k 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=1 ;pnba Vsense0+)Vsense0-)Isense1+)Isense1-)IthR0)Isense0+)Isense0-)SYNC)PHAS_CFG)Ith0)Ith1)))Run0)Run1))Freq_cfg)Vout_cfg0)Vout_cfg1)))VDD25)))VDD33)IthR1)Vsense1))SW1)TG1)Boost1)BG1)IntVcc)PGND)Vin)BG0)Boost0)TG0)SW0))SGND
.tran 1.6m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1648 1616
WIRE -24 -792 -24 -808
WIRE -24 -712 -24 -728
WIRE -24 -712 -328 -712
WIRE 264 -712 -24 -712
WIRE -424 -696 -664 -696
WIRE -120 -696 -424 -696
WIRE 440 -696 -120 -696
WIRE -664 -680 -664 -696
WIRE -328 -680 -328 -712
WIRE 264 -680 264 -712
WIRE -424 -664 -424 -696
WIRE 440 -664 440 -696
WIRE -120 -648 -120 -696
WIRE -24 -648 -24 -712
WIRE 72 -648 72 -664
WIRE 168 -648 168 -664
WIRE -664 -584 -664 -600
WIRE -184 -584 -376 -584
WIRE 392 -584 232 -584
WIRE -424 -488 -424 -568
WIRE -408 -488 -424 -488
WIRE -328 -488 -328 -616
WIRE -328 -488 -344 -488
WIRE -184 -488 -328 -488
WIRE 264 -488 264 -616
WIRE 264 -488 232 -488
WIRE 280 -488 264 -488
WIRE 440 -488 440 -568
WIRE 440 -488 344 -488
WIRE -712 -392 -808 -392
WIRE -616 -392 -712 -392
WIRE -600 -392 -616 -392
WIRE -488 -392 -520 -392
WIRE -424 -392 -424 -488
WIRE -424 -392 -488 -392
WIRE -184 -392 -424 -392
WIRE 440 -392 440 -488
WIRE 440 -392 232 -392
WIRE 520 -392 440 -392
WIRE 552 -392 520 -392
WIRE 648 -392 632 -392
WIRE 712 -392 648 -392
WIRE 824 -392 712 -392
WIRE -808 -376 -808 -392
WIRE -712 -376 -712 -392
WIRE -424 -376 -424 -392
WIRE 440 -376 440 -392
WIRE 712 -376 712 -392
WIRE 824 -376 824 -392
WIRE -184 -296 -376 -296
WIRE 392 -296 232 -296
WIRE -808 -280 -808 -296
WIRE -712 -280 -712 -312
WIRE 712 -280 712 -312
WIRE 824 -280 824 -296
WIRE -424 -264 -424 -280
WIRE 440 -264 440 -280
WIRE -488 -200 -488 -392
WIRE -408 -200 -488 -200
WIRE -296 -200 -328 -200
WIRE -184 -200 -296 -200
WIRE 280 -200 232 -200
WIRE 376 -200 280 -200
WIRE 520 -200 520 -392
WIRE 520 -200 456 -200
WIRE -296 -184 -296 -200
WIRE 280 -184 280 -200
WIRE -616 -104 -616 -392
WIRE -296 -104 -296 -120
WIRE -296 -104 -616 -104
WIRE -184 -104 -296 -104
WIRE 280 -104 280 -120
WIRE 280 -104 232 -104
WIRE 648 -104 648 -392
WIRE 648 -104 280 -104
WIRE -616 -8 -616 -104
WIRE -184 -8 -616 -8
WIRE 648 -8 648 -104
WIRE 648 -8 232 -8
WIRE 264 88 232 88
WIRE -280 184 -312 184
WIRE -184 184 -216 184
WIRE 264 184 232 184
WIRE 360 184 328 184
WIRE -280 280 -312 280
WIRE -184 280 -216 280
WIRE 264 280 232 280
WIRE 360 280 328 280
WIRE -184 472 -280 472
WIRE 312 472 232 472
WIRE -280 536 -280 472
WIRE -120 552 -120 536
WIRE 520 552 -120 552
WIRE -120 568 -120 552
WIRE 72 568 72 536
WIRE 312 568 312 472
WIRE 520 584 520 552
WIRE -120 648 -120 632
WIRE -280 680 -280 616
WIRE -24 680 -24 536
WIRE -24 680 -280 680
WIRE 72 680 72 648
WIRE 72 680 -24 680
WIRE 312 680 312 648
WIRE 312 680 72 680
WIRE -24 696 -24 680
WIRE 168 696 168 536
WIRE 520 696 520 664
WIRE 520 696 168 696
WIRE 520 712 520 696
WIRE -24 776 -24 760
WIRE 520 808 520 792
FLAG 72 -664 0
FLAG 168 -664 0
FLAG -24 -808 0
FLAG -424 -264 0
FLAG -712 -280 0
FLAG -808 -280 0
FLAG -808 -392 OUT1
FLAG -664 -696 IN
FLAG -664 -584 0
FLAG 440 -264 0
FLAG 712 -280 0
FLAG 824 -280 0
FLAG 824 -392 OUT0
FLAG 264 88 0
FLAG 360 184 0
FLAG 360 280 0
FLAG -312 184 0
FLAG -312 280 0
FLAG 520 808 0
FLAG -120 648 0
FLAG -24 776 0
SYMBOL voltage -664 -696 R0
SYMATTR InstName V1
SYMATTR Value 30
SYMBOL cap -40 -792 R0
SYMATTR InstName C1
SYMATTR Value 1
SYMBOL nmos -376 -664 M0
SYMATTR InstName Q1
SYMATTR Value RJK0305DPB
SYMBOL nmos -376 -376 M0
SYMATTR InstName Q2
SYMATTR Value RJK0301DPB
SYMBOL ind 536 -376 R270
SYMATTR InstName L1
SYMATTR Value 6.82
SYMATTR SpiceLine Rser=4.13m
SYMBOL cap -344 -504 R90
SYMATTR InstName C2
SYMATTR Value .1
SYMBOL schottky -344 -680 R0
SYMATTR Value CMDSH2-3
SYMATTR InstName D1
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 264 -184 R0
SYMATTR InstName C3
SYMATTR Value .22
SYMBOL res 360 -184 R270
SYMATTR InstName R1
SYMATTR Value 7.5K
SYMBOL cap -728 -376 R0
SYMATTR InstName C5
SYMATTR Value 530
SYMATTR SpiceLine Rser=5m
SYMBOL res -824 -392 R0
SYMATTR InstName R2
SYMATTR Value .33
SYMBOL nmos 392 -664 R0
SYMATTR InstName Q3
SYMATTR Value RJK0305DPB
SYMBOL nmos 392 -376 R0
SYMATTR InstName Q4
SYMATTR Value RJK0301DPB
SYMBOL ind -504 -376 M270
SYMATTR InstName L2
SYMATTR Value 3.1
SYMATTR SpiceLine Rser=2m
SYMBOL cap 280 -504 M90
SYMATTR InstName C7
SYMATTR Value .1
SYMBOL schottky 248 -680 R0
SYMATTR Value CMDSH2-3
SYMATTR InstName D2
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap -312 -184 R0
SYMATTR InstName C8
SYMATTR Value .22
SYMBOL res -424 -184 R270
SYMATTR InstName R11
SYMATTR Value 6.81K
SYMBOL cap 696 -376 R0
SYMATTR InstName C9
SYMATTR Value 530
SYMATTR SpiceLine Rser=5m
SYMBOL res 808 -392 R0
SYMATTR InstName R12
SYMATTR Value 1
SYMBOL cap 264 168 M90
SYMATTR InstName C4
SYMATTR Value 220p
SYMBOL cap 264 264 M90
SYMATTR InstName C6
SYMATTR Value 2.2n
SYMBOL cap -216 168 R90
SYMATTR InstName C10
SYMATTR Value 220p
SYMBOL cap -216 264 R90
SYMATTR InstName C11
SYMATTR Value 4.7n
SYMBOL res -296 520 R0
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL res 56 552 R0
SYMATTR InstName R4
SYMATTR Value 4.99K
SYMBOL res 504 568 R0
SYMATTR InstName R5
SYMATTR Value 24.9K
SYMBOL res 504 696 R0
SYMATTR InstName R6
SYMATTR Value 11.3K
SYMBOL res 296 552 R0
SYMATTR InstName R7
SYMATTR Value 10K
SYMBOL cap -136 568 R0
SYMATTR InstName C12
SYMATTR Value 1
SYMBOL cap -40 696 R0
SYMATTR InstName C13
SYMATTR Value 1
SYMBOL LTC3886 24 -56 R0
SYMATTR SpiceLine Vout_0=12 Vout_1=5 Ilim0_range=1 Ilim1_range=1 OC_limit0=1 OC_limit1=1 Mode_ll=2 Fault_response=0 Retry_delay=.1m gm0=3m gm1=3m Rth0=5k Rth1=5k
SYMATTR SpiceLine2 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=1
SYMATTR InstName U1