* SPICE netlist
V1 IN 0 12
C1 INTVcc 0 4.7
C4 N004 SW2 0.1
L1 SENSE1- SW1 2.2 Rser=10m
R1 TG1 N005 2
R2 TG1 N007 1
R3 BG1 N009 2
R4 BG1 N011 1
R5 IN SENSE1- 1.5m
C5 IN SENSE2- 1n
C7 OUT1 0 68 Rser=0.066
R11 INTVcc N001 100K
C2 N003 SW1 0.1
L2 SENSE2- SW2 2.2 Rser=10m
C3 IN SENSE1- 1n
C11 SS2 0 0.01
C12 N014 0 6.8n
C10 SS1 0 0.01
C13 N015 0 4.7n
R6 IN SENSE2- 1.5m
R7 TG2 N006 2
R8 TG2 N008 1
R9 BG2 N010 2
R10 BG2 N012 1
R12 INTVcc N002 100K
R13 N013 0 75K
Rload1 OUT1 0 6
Rload2 OUT2 0 24
R16 OUT2 FB2 3900K
R17 FB2 0 100K
C6 OUT1 0 10 X4
C8 OUT2 0 10 X4
C9 OUT2 0 68 Rser=0.066
XU2 OUT1 TG1 SW1 EPC2204 ;pnba D)G)S
XU3 SW1 BG1 0 EPC2204 ;pnba D)G)S
XU4 OUT2 TG2 SW2 EPC2204 ;pnba D)G)S
XU5 SW2 BG2 0 EPC2204 ;pnba D)G)S
XU1 RUN N013 INTVcc 0 0 N003 RUN RUN SENSE2- IN FB2 ITH2 SS2 N002 SW2 N006 N008 N010 INTVcc OUT1 0 N012 N009 N011 N005 SW1 N001 N007 SS1 ITH1 OUT1 IN SENSE1- 0 INTVcc 0 N004 NC_01 0 0 LTC7892 ;pnba VBIAS)FREQ)MODE)VPRG1)PLLIN)BOOST1)RUN1)RUN2)SENSE2-)SENSE2+)VFB2)ITH2)SS2)PGOOD2)SW2)TGUP2)TGDN2)BGUP2)INTVcc)EXTVcc)GND)BGDN2)BGUP1)BGDN1)TGUP1)SW1)PGOOD1)TGDN1)SS1)ITH1)VFB1)SENSE1+)SENSE1-)DRVUV)DRVcc)DRVset)BOOST2)ILIM)DTCA)DTCB
V2 RUN 0 PULSE(0 5 0.2m 10n 10n 1)
C14 ITH1 0 220p
R14 ITH1 N014 4.2K
R15 ITH2 N015 10K
C15 ITH2 0 220p
.tran 4m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 2512 1744
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WIRE -728 -824 -776 -824
WIRE -360 -824 -728 -824
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WIRE -360 200 -1080 200
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WIRE 1192 200 472 200
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WIRE 1080 296 664 296
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WIRE -312 392 -776 392
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WIRE 728 392 472 392
WIRE 808 392 728 392
WIRE 920 392 920 -312
WIRE 920 392 888 392
WIRE 728 424 728 392
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WIRE -312 488 -360 488
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WIRE 616 504 616 488
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WIRE -360 584 -408 584
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WIRE 616 616 520 616
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WIRE 520 648 520 616
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WIRE 104 744 56 744
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WIRE 616 760 616 728
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WIRE -408 824 -408 808
WIRE 520 824 520 808
WIRE -1160 872 -1160 -88
WIRE 1256 872 1256 -88
WIRE 1256 872 -1160 872
FLAG -1256 56 0
FLAG 456 -664 0
FLAG 344 696 0
FLAG 728 104 0
FLAG 728 536 0
FLAG -856 -184 0
FLAG -952 -184 0
FLAG -40 776 0
FLAG -136 696 0
FLAG 1192 -184 0
FLAG 104 744 INTVcc
FLAG -1208 -88 IN
FLAG 1144 -312 OUT2
FLAG 616 584 0
FLAG 520 824 0
FLAG 56 -728 0
FLAG -648 104 0
FLAG 1080 -184 0
FLAG 984 -184 0
FLAG -1080 -184 0
FLAG -1000 -312 OUT1
FLAG -504 584 0
FLAG -408 824 0
FLAG 344 -760 INTVcc
FLAG 152 696 0
FLAG 248 696 0
FLAG -360 488 SS1
FLAG -360 584 ITH1
FLAG 472 488 SS2
FLAG 472 584 ITH2
FLAG 472 392 FB2
FLAG -584 -216 TG1
FLAG 648 -280 TG2
FLAG -408 -88 SW1
FLAG 504 -88 SW2
FLAG -552 8 BG1
FLAG 632 8 BG2
FLAG 664 296 SENSE2-
FLAG -552 296 SENSE1-
FLAG -776 -680 0
FLAG -728 -824 RUN
FLAG -504 776 0
FLAG 616 760 0
SYMBOL voltage -1256 -72 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL cap 440 -744 R0
SYMATTR InstName C1
SYMATTR Value 4.7
SYMBOL cap 440 -360 R0
SYMATTR InstName C4
SYMATTR Value 0.1
SYMBOL ind -920 -72 R270
SYMATTR InstName L1
SYMATTR Value 2.2
SYMATTR SpiceLine Rser=10m
SYMBOL res -552 -264 R270
SYMATTR InstName R1
SYMATTR Value 2
SYMBOL res -552 -168 R270
SYMATTR InstName R2
SYMATTR Value 1
SYMBOL res -552 24 R270
SYMATTR InstName R3
SYMATTR Value 2
SYMBOL res -552 120 R270
SYMATTR InstName R4
SYMATTR Value 1
SYMBOL res -1064 -72 R270
SYMATTR InstName R5
SYMATTR Value 1.5m
SYMBOL cap 456 216 R0
SYMATTR InstName C5
SYMATTR Value 1n
SYMBOL polcap -968 -280 R0
SYMATTR Value 68
SYMATTR InstName C7
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine Rser=0.066
SYMBOL res -440 -584 R0
SYMATTR InstName R11
SYMATTR Value 100K
SYMBOL cap -344 -376 M0
SYMATTR InstName C2
SYMATTR Value 0.1
SYMBOL ind 1048 -72 M270
SYMATTR InstName L2
SYMATTR Value 2.2
SYMATTR SpiceLine Rser=10m
SYMBOL cap -344 216 M0
SYMATTR InstName C3
SYMATTR Value 1n
SYMBOL cap 600 504 R0
SYMATTR InstName C11
SYMATTR Value 0.01
SYMBOL cap -424 744 R0
SYMATTR Value 6.8n
SYMATTR InstName C12
SYMBOL cap -520 504 R0
SYMATTR InstName C10
SYMATTR Value 0.01
SYMBOL cap 504 744 R0
SYMATTR Value 4.7n
SYMATTR InstName C13
SYMBOL res 1192 -104 R90
SYMATTR InstName R6
SYMATTR Value 1.5m
SYMBOL res 632 -296 R90
SYMATTR InstName R7
SYMATTR Value 2
SYMBOL res 632 -200 R90
SYMATTR InstName R8
SYMATTR Value 1
SYMBOL res 632 -8 R90
SYMATTR InstName R9
SYMATTR Value 2
SYMBOL res 632 88 R90
SYMATTR InstName R10
SYMATTR Value 1
SYMBOL res 552 -584 R0
SYMATTR InstName R12
SYMATTR Value 100K
SYMBOL res -56 664 R0
SYMATTR InstName R13
SYMATTR Value 75K
SYMBOL res -1096 -296 R0
SYMATTR InstName Rload1
SYMATTR Value 6
SYMBOL res 1176 -296 R0
SYMATTR InstName Rload2
SYMATTR Value 24
SYMBOL res 904 376 R90
SYMATTR InstName R16
SYMATTR Value 3900K
SYMBOL res 712 408 R0
SYMATTR InstName R17
SYMATTR Value 100K
SYMBOL cap -872 -280 R0
SYMATTR Value2 X4
SYMATTR InstName C6
SYMATTR Value 10
SYMBOL cap 968 -280 R0
SYMATTR Value2 X4
SYMATTR InstName C8
SYMATTR Value 10
SYMBOL polcap 1064 -280 R0
SYMATTR Value 68
SYMATTR InstName C9
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine Rser=0.066
SYMBOL SpecialFunctions\\EPC2204 -600 -296 M0
SYMATTR InstName U2
SYMBOL SpecialFunctions\\EPC2204 -600 -24 M0
SYMATTR InstName U3
SYMBOL SpecialFunctions\\EPC2204 680 -296 R0
SYMATTR InstName U4
SYMBOL SpecialFunctions\\EPC2204 680 -24 R0
SYMATTR InstName U5
SYMBOL LTC7892 56 -168 R0
SYMATTR InstName U1
SYMBOL voltage -776 -808 R0
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 0.2m 10n 10n 1)
SYMBOL cap -520 664 R0
SYMATTR InstName C14
SYMATTR Value 220p
SYMBOL res -424 632 R0
SYMATTR InstName R14
SYMATTR Value 4.2K
SYMBOL res 504 632 R0
SYMATTR InstName R15
SYMATTR Value 10K
SYMBOL cap 600 664 R0
SYMATTR InstName C15
SYMATTR Value 220p