* SPICE netlist
XU1 N019 N012 N010 IN 0 N014 N011 N013 N017 N018 N022 N016 N005 N003 N007 N007 IN 0 0 N009 IN N008 0 0 N006 N006 N002 N004 N015 N001 N020 N021 LTC3708 ;pnba RUN/SS)Ith1)FB1)Track1)SGND)Track2)FB2)Ith2)ExtLPF)IntLPF)Vrng2)Ion2)Boost2)TG2)SW2)Sense2+)Vcc)Sense2-)PGND2)BG2)DRVcc)BG1)PGND1)Sense1-)Sense1+)SW1)TG1)Boost1)Ion1)Pgood)FCB)Vrng1
C1 N019 0 1000p
C2 N017 0 .1 Rser=1K
C3 N018 0 .01 Rser=10K
R1 IN N001 100K
V1 IN 0 5
MQ1 IN N003 N007 N007 HAT2168H
MQ2 N007 N009 0 0 HAT2168H
L1 N007 OUT2 1.2
C4 N005 N007 .22
D1 IN N005 CMDSH2-3
R2 OUT2 N011 12.1K
R3 N011 0 6.04K
C5 OUT2 0 470 Rser=10m
C6 N013 0 180p Rser=33K
MQ3 IN N002 N006 N006 HAT2168H
MQ4 N006 N008 0 0 HAT2168H
L2 N006 OUT1 1.4
C7 N004 N006 .22
D2 IN N004 CMDSH2-3
R4 OUT1 N010 19.1K
R5 N010 0 6.04K
C8 OUT1 0 470 Rser=10m
C9 N012 0 180p Rser=33K
R6 OUT1 N014 12.1K
R7 N014 0 6.04K
R8 N016 IN 1Meg
R9 N015 IN 1.5Meg
V2 N020 0 sine(1.5 1.5 250K)
Rload1 OUT1 0 .2
Rload2 OUT2 0 .12
.tran 2m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1856 1488
WIRE -416 -744 -528 -744
WIRE -288 -744 -416 -744
WIRE -16 -744 -288 -744
WIRE 128 -744 -16 -744
WIRE 272 -744 128 -744
WIRE 448 -744 272 -744
WIRE 592 -744 448 -744
WIRE -528 -728 -528 -744
WIRE -288 -728 -288 -744
WIRE 272 -728 272 -744
WIRE 448 -696 448 -744
WIRE -528 -632 -528 -648
WIRE -16 -616 -16 -744
WIRE -16 -616 -208 -616
WIRE 384 -616 -16 -616
WIRE -416 -600 -416 -744
WIRE -16 -600 -16 -616
WIRE 128 -600 128 -744
WIRE 272 -600 272 -648
WIRE 592 -600 592 -744
WIRE -96 -520 -368 -520
WIRE 544 -520 352 -520
WIRE -288 -424 -288 -664
WIRE -96 -424 -288 -424
WIRE 448 -424 448 -632
WIRE 448 -424 352 -424
WIRE -288 -408 -288 -424
WIRE 448 -408 448 -424
WIRE -800 -328 -912 -328
WIRE -656 -328 -800 -328
WIRE -560 -328 -656 -328
WIRE -528 -328 -560 -328
WIRE -416 -328 -416 -504
WIRE -416 -328 -448 -328
WIRE -288 -328 -288 -344
WIRE -288 -328 -416 -328
WIRE -96 -328 -288 -328
WIRE 448 -328 448 -344
WIRE 448 -328 352 -328
WIRE 592 -328 592 -504
WIRE 592 -328 448 -328
WIRE 624 -328 592 -328
WIRE 736 -328 704 -328
WIRE 784 -328 736 -328
WIRE 928 -328 784 -328
WIRE -912 -312 -912 -328
WIRE 928 -312 928 -328
WIRE -800 -296 -800 -328
WIRE 784 -296 784 -328
WIRE -416 -232 -416 -328
WIRE -96 -232 -416 -232
WIRE 592 -232 592 -328
WIRE 592 -232 352 -232
WIRE -416 -216 -416 -232
WIRE 592 -216 592 -232
WIRE -912 -200 -912 -232
WIRE -800 -200 -800 -232
WIRE 784 -200 784 -232
WIRE 928 -200 928 -232
WIRE -96 -136 -368 -136
WIRE 544 -136 352 -136
WIRE -416 -40 -416 -120
WIRE -96 -40 -416 -40
WIRE 592 -40 592 -120
WIRE 592 -40 352 -40
WIRE -656 56 -656 -328
WIRE -416 56 -416 -40
WIRE -96 56 -416 56
WIRE 592 56 592 -40
WIRE 592 56 352 56
WIRE 736 56 736 -328
WIRE -416 72 -416 56
WIRE 592 72 592 56
WIRE -656 152 -656 136
WIRE -96 152 -656 152
WIRE 736 152 736 136
WIRE 736 152 352 152
WIRE -656 168 -656 152
WIRE 736 168 736 152
WIRE -560 248 -560 -328
WIRE -304 248 -320 248
WIRE -96 248 -240 248
WIRE 416 248 352 248
WIRE 496 248 480 248
WIRE -656 264 -656 248
WIRE 736 264 736 248
WIRE -560 344 -560 328
WIRE -96 344 -560 344
WIRE 384 344 384 -616
WIRE 384 344 352 344
WIRE -560 360 -560 344
WIRE -208 360 -208 -616
WIRE -96 440 -208 440
WIRE 384 440 384 424
WIRE 384 440 352 440
WIRE -560 456 -560 440
WIRE -192 536 -208 536
WIRE -96 536 -128 536
WIRE 384 536 352 536
WIRE 464 536 448 536
WIRE -96 632 -160 632
WIRE 400 632 352 632
WIRE 400 648 400 632
WIRE -160 664 -160 632
WIRE -160 744 -160 728
WIRE -16 744 -16 712
WIRE 128 744 128 712
WIRE 272 744 272 712
WIRE 400 744 400 728
FLAG 128 744 0
FLAG -160 744 0
FLAG -208 536 0
FLAG 464 536 0
FLAG -528 -632 0
FLAG 592 72 0
FLAG 736 264 0
FLAG 784 -200 0
FLAG 928 -200 0
FLAG 496 248 0
FLAG -416 72 0
FLAG -656 264 0
FLAG -800 -200 0
FLAG -912 -200 0
FLAG -320 248 0
FLAG -528 -744 IN
FLAG 928 -328 OUT2
FLAG -912 -328 OUT1
FLAG -560 456 0
FLAG 400 744 0
SYMBOL LTC3708 128 56 R0
SYMATTR InstName U1
SYMBOL cap -176 664 R0
SYMATTR InstName C1
SYMATTR Value 1000p
SYMBOL cap -128 520 R90
SYMATTR InstName C2
SYMATTR Value .1
SYMATTR SpiceLine Rser=1K
SYMBOL cap 384 520 M90
SYMATTR InstName C3
SYMATTR Value .01
SYMATTR SpiceLine Rser=10K
SYMBOL res 256 -744 R0
SYMATTR InstName R1
SYMATTR Value 100K
SYMBOL voltage -528 -744 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL nmos 544 -600 R0
SYMATTR InstName Q1
SYMATTR Value HAT2168H
SYMBOL nmos 544 -216 R0
SYMATTR InstName Q2
SYMATTR Value HAT2168H
SYMBOL ind 608 -312 R270
SYMATTR InstName L1
SYMATTR Value 1.2
SYMBOL cap 432 -408 R0
SYMATTR InstName C4
SYMATTR Value .22
SYMBOL schottky 432 -696 R0
SYMATTR InstName D1
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 720 40 R0
SYMATTR InstName R2
SYMATTR Value 12.1K
SYMBOL res 720 152 R0
SYMATTR InstName R3
SYMATTR Value 6.04K
SYMBOL cap 768 -296 R0
SYMATTR Value 470
SYMATTR SpiceLine Rser=10m
SYMATTR InstName C5
SYMBOL cap 416 232 M90
SYMATTR InstName C6
SYMATTR Value 180p
SYMATTR SpiceLine Rser=33K
SYMBOL nmos -368 -600 M0
SYMATTR InstName Q3
SYMATTR Value HAT2168H
SYMBOL nmos -368 -216 M0
SYMATTR InstName Q4
SYMATTR Value HAT2168H
SYMBOL ind -432 -312 M270
SYMATTR InstName L2
SYMATTR Value 1.4
SYMBOL cap -304 -408 R0
SYMATTR InstName C7
SYMATTR Value .22
SYMBOL schottky -304 -728 R0
SYMATTR InstName D2
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -672 40 R0
SYMATTR InstName R4
SYMATTR Value 19.1K
SYMBOL res -672 152 R0
SYMATTR InstName R5
SYMATTR Value 6.04K
SYMBOL cap -816 -296 R0
SYMATTR Value 470
SYMATTR SpiceLine Rser=10m
SYMATTR InstName C8
SYMBOL cap -240 232 R90
SYMATTR InstName C9
SYMATTR Value 180p
SYMATTR SpiceLine Rser=33K
SYMBOL res -576 232 R0
SYMATTR InstName R6
SYMATTR Value 12.1K
SYMBOL res -576 344 R0
SYMATTR InstName R7
SYMATTR Value 6.04K
SYMBOL res 368 440 M180
SYMATTR InstName R8
SYMATTR Value 1Meg
SYMBOL res -224 456 M180
SYMATTR InstName R9
SYMATTR Value 1.5Meg
SYMBOL voltage 400 632 R0
SYMATTR InstName V2
SYMATTR Value sine(1.5 1.5 250K)
SYMBOL res -928 -328 R0
SYMATTR InstName Rload1
SYMATTR Value .2
SYMBOL res 912 -328 R0
SYMATTR InstName Rload2
SYMATTR Value .12