* SPICE netlist
V1 IN 0 12
C1 N005 0 2.2
C3 N009 0 4.7
R1 N005 N002 100K
R2 N005 N014 100K
XU5 N001 N036 N001 0 N037 N039 N041 N001 N001 IN N033 0 N029 N004 N004 LTC7050 RTon=5m RBon=1.2m OV=14.8 ;pnba VCC)PWM1)RUN1)SGND)SW2)ISNS2)PWM2)RUN2)PVCC)VIN)SW1)PGND)ISNS1)FLTB1)FLTB2
L1 N008 OUT0 0.2 Rser=20m
Rload0 OUT0 0 20.83m
R4 N017 N003 499
R5 N006 N003 499
R6 N005 N013 100K
L2 N011 OUT0 0.2 Rser=20m
C4 N026 0 100p
C5 N031 0 3300p
C6 N027 0 100p
C7 N032 0 3300p
XU2 N001 N012 N001 0 N011 N017 N020 N001 N001 IN N008 0 N006 N002 N002 LTC7050 RTon=5m RBon=1.2m OV=14.8 ;pnba VCC)PWM1)RUN1)SGND)SW2)ISNS2)PWM2)RUN2)PVCC)VIN)SW1)PGND)ISNS1)FLTB1)FLTB2
L3 N030 OUT0 0.2 Rser=20m
L4 N034 OUT0 0.2 Rser=20m
R8 N028 N003 499
R9 N038 N003 499
XU3 N001 N035 N001 0 N034 N038 N040 N001 N001 IN N030 0 N028 N002 N002 LTC7050 RTon=5m RBon=1.2m OV=14.8 ;pnba VCC)PWM1)RUN1)SGND)SW2)ISNS2)PWM2)RUN2)PVCC)VIN)SW1)PGND)ISNS1)FLTB1)FLTB2
L5 N010 OUT1 0.2 Rser=20m
C8 OUT1 0 220 m=7 Rser=2.5m
Rload1 OUT1 0 25m
L6 N016 OUT1 0.2 Rser=20m
XU4 N001 N015 N001 0 N016 N019 N021 N001 N001 IN N010 0 N007 N004 N004 LTC7050 RTon=5m RBon=1.2m OV=14.8 ;pnba VCC)PWM1)RUN1)SGND)SW2)ISNS2)PWM2)RUN2)PVCC)VIN)SW1)PGND)ISNS1)FLTB1)FLTB2
L7 N033 OUT1 0.2 Rser=20m
L8 N037 OUT1 0.2 Rser=20m
R11 N007 N003 499
R12 N019 N003 499
R13 N029 N003 499
R14 N039 N003 499
R15 N005 N018 10K
V2 N001 0 6
R7 N005 N004 100K
R16 N022 N024 42.2K
R17 N024 0 28K
R18 N023 N025 97.6K
R19 N025 0 28K
XU1 N012 N015 N006 N007 N020 0 OUT0 N017 N026 N031 N013 N014 N032 0 N027 N018 OUT1 0 N035 N002 N004 N028 N040 N038 N041 N039 N036 N029 N021 N005 N009 IN N003 N019 0 N022 N023 N024 N025 LTC3888-1 Frequency_Switch=500 Vout0=2.5 Vout1=3 PWM_config=3 GM0=3.02m GM1=3.02m Vout_Trans_Rate0=7.5 Vout_Trans_Rate1=9 Vout_Scale_Loop0=2.507 Vout_Scale_Loop1=4.487 Ton_Delay0=0 Ton_Delay1=0 Toff_Delay0=0 Toff_Delay1=0 Rith0=5K Rith1=5K OC_Limit0=50 OC_Limit1=50 Ton_Min=45n VOUT_UV_Fault_Limit0=2.2 VOUT_UV_Fault_Limit1=2.8 VOUT_OV_Fault_Limit0=2.6 VOUT_OV_Fault_Limit1=3.1 Iout_Cal_Gain=5m Slave0=0 Slave1=0 ;pnba PWM0)PWM1)ISENSE0)ISENSE1)PWM2)VSENSE0-)VSENSE0+)ISENSE2)ITH0)ITHR0)PGOOD0)PGOOD1)ITHR1)SYNC)ITH1)CLKOUT)VSENSE1+)VSENSE1-)PWM3)RUN0)RUN1)ISENSE3)PWM4)ISENSE4)PWM5)ISENSE5)PWM6)ISENSE6)PWM7)VDD33)INTVCC)VIN)IREF)ISENSE7)GND)DAOUT0)DAOUT1)FB0)FB1
C2 OUT0 0 220 m=7 Rser=2.5m
.tran 1m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 3536 2208
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WIRE -120 1008 -216 1008
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WIRE 1208 1008 1192 1008
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WIRE 1048 1072 1048 1056
WIRE 24 1088 24 1056
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WIRE -632 1104 -1112 1104
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WIRE -216 1104 -632 1104
WIRE 248 1104 248 1008
WIRE 728 1104 728 992
WIRE 728 1104 248 1104
WIRE 1240 1104 1240 816
WIRE 1240 1104 728 1104
FLAG -1160 -944 0
FLAG -1112 -1104 IN
FLAG -264 -640 0
FLAG 264 -736 0
FLAG -152 -352 0
FLAG -920 -96 0
FLAG 24 1088 0
FLAG -1592 -624 0
FLAG -1752 -624 0
FLAG -1080 -160 0
FLAG -152 48 0
FLAG -232 336 0
FLAG -232 432 0
FLAG 280 336 0
FLAG 280 432 0
FLAG -1672 -736 OUT0
FLAG -920 1072 0
FLAG -1080 1008 0
FLAG 1048 -96 0
FLAG 1576 -624 0
FLAG 1768 -624 0
FLAG 1208 -160 0
FLAG 1688 -736 OUT1
FLAG 1048 1072 0
FLAG 1208 1008 0
FLAG 200 48 0
FLAG -920 -928 0
FLAG -360 352 0
FLAG 376 352 0
SYMBOL voltage -1160 -1056 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL cap -184 -656 R90
SYMATTR InstName C1
SYMATTR Value 2.2
SYMBOL cap 184 -752 M90
SYMATTR InstName C3
SYMATTR Value 4.7
SYMBOL res -280 -528 R270
SYMATTR InstName R1
SYMATTR Value 100K
SYMBOL res 312 -464 R90
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL LTC7050 1048 720 R0
SYMATTR InstName U5
SYMBOL ind -1240 -720 M270
SYMATTR InstName L1
SYMATTR Value 0.2
SYMATTR SpiceLine Rser=20m
SYMBOL res -1768 -736 R0
SYMATTR InstName Rload0
SYMATTR Value 20.83m
SYMBOL res -552 688 R270
SYMATTR InstName R4
SYMATTR Value 499
SYMBOL res -552 -96 R270
SYMATTR InstName R5
SYMATTR Value 499
SYMBOL res -280 -432 R270
SYMATTR InstName R6
SYMATTR Value 100K
SYMBOL ind -1240 -432 M270
SYMATTR InstName L2
SYMATTR Value 0.2
SYMATTR SpiceLine Rser=20m
SYMBOL cap -152 320 R90
SYMATTR InstName C4
SYMATTR Value 100p
SYMBOL cap -152 416 R90
SYMATTR InstName C5
SYMATTR Value 3300p
SYMBOL cap 200 320 M90
SYMATTR InstName C6
SYMATTR Value 100p
SYMBOL cap 200 416 M90
SYMATTR InstName C7
SYMATTR Value 3300p
SYMBOL LTC7050 -920 -448 M0
SYMATTR InstName U2
SYMBOL ind -1240 448 M270
SYMATTR InstName L3
SYMATTR Value 0.2
SYMATTR SpiceLine Rser=20m
SYMBOL ind -1240 736 M270
SYMATTR InstName L4
SYMATTR Value 0.2
SYMATTR SpiceLine Rser=20m
SYMBOL res -552 880 R270
SYMATTR InstName R8
SYMATTR Value 499
SYMBOL res -552 1008 R270
SYMATTR InstName R9
SYMATTR Value 499
SYMBOL LTC7050 -920 720 M0
SYMATTR InstName U3
SYMBOL ind 1352 -720 R270
SYMATTR InstName L5
SYMATTR Value 0.2
SYMATTR SpiceLine Rser=20m
SYMBOL cap 1560 -720 R0
SYMATTR Value 220
SYMATTR InstName C8
SYMATTR Value2 m=7
SYMATTR SpiceLine Rser=2.5m
SYMBOL res 1752 -736 R0
SYMATTR InstName Rload1
SYMATTR Value 25m
SYMBOL ind 1352 -432 R270
SYMATTR InstName L6
SYMATTR Value 0.2
SYMATTR SpiceLine Rser=20m
SYMBOL LTC7050 1048 -448 R0
SYMATTR InstName U4
SYMBOL ind 1352 448 R270
SYMATTR InstName L7
SYMATTR Value 0.2
SYMATTR SpiceLine Rser=20m
SYMBOL ind 1352 736 R270
SYMATTR InstName L8
SYMATTR Value 0.2
SYMATTR SpiceLine Rser=20m
SYMBOL res 632 -128 R90
SYMATTR InstName R11
SYMATTR Value 499
SYMBOL res 648 656 R90
SYMATTR InstName R12
SYMATTR Value 499
SYMBOL res 648 848 R90
SYMATTR InstName R13
SYMATTR Value 499
SYMBOL res 648 976 R90
SYMATTR InstName R14
SYMATTR Value 499
SYMBOL res 312 -368 R90
SYMATTR InstName R15
SYMATTR Value 10K
SYMBOL voltage -920 -1040 R0
SYMATTR InstName V2
SYMATTR Value 6
SYMBOL res 312 -560 R90
SYMATTR InstName R7
SYMATTR Value 100K
SYMBOL res -376 144 R0
SYMATTR InstName R16
SYMATTR Value 42.2K
SYMBOL res -376 240 R0
SYMATTR InstName R17
SYMATTR Value 28K
SYMBOL res 360 144 R0
SYMATTR InstName R18
SYMATTR Value 97.6K
SYMBOL res 360 240 R0
SYMATTR InstName R19
SYMATTR Value 28K
SYMBOL LTC3888-1 24 96 R0
SYMATTR InstName U1
SYMATTR SpiceLine2 Toff_Delay1=0 Rith0=5K Rith1=5K OC_Limit0=50 OC_Limit1=50 Ton_Min=45n VOUT_UV_Fault_Limit0=2.2 VOUT_UV_Fault_Limit1=2.8 VOUT_OV_Fault_Limit0=2.6 VOUT_OV_Fault_Limit1=3.1 Iout_Cal_Gain=5m Slave0=0 Slave1=0
SYMATTR SpiceLine Frequency_Switch=500 Vout0=2.5 Vout1=3 PWM_config=3 GM0=3.02m GM1=3.02m Vout_Trans_Rate0=7.5 Vout_Trans_Rate1=9 Vout_Scale_Loop0=2.507 Vout_Scale_Loop1=4.487 Ton_Delay0=0 Ton_Delay1=0 Toff_Delay0=0
SYMBOL cap -1608 -720 R0
SYMATTR Value 220
SYMATTR InstName C2
SYMATTR Value2 m=7
SYMATTR SpiceLine Rser=2.5m