* SPICE netlist
V1 IN 0 6
MQ1 IN N002 N004 N004 Si4866DY
MQ2 N004 N008 0 0 Si4866DY
C1 N003 N004 .1
D1 IN N003 1N5817
D2 0 N004 1N5817
R1 N006 OUT .003
C2 N006 OUT 1000p
L1 N004 N006 1
R2 IN N001 10K
MQ3 IN N009 N011 N011 Si4866DY
MQ4 N011 N013 0 0 Si4866DY
C3 N010 N011 .1
D3 IN N010 1N5817
D4 0 N011 1N5817
R3 N012 OUT .003
C4 N012 OUT 1000p
L2 N011 N012 1
MQ5 IN N018 N020 N020 Si4866DY
MQ6 N020 N024 0 0 Si4866DY
C5 N019 N020 .1
D5 0 N020 1N5817
R4 N022 OUT .003
L3 N020 N022 1
D6 IN N019 1N5817
C6 N022 OUT 1000p
C7 OUT 0 480 Rser=.01
C8 N021 N023 100p
C9 N017 0 100p
C10 N015 0 680p
R5 N016 N015 5K
XU1 MP_01 N007 N005 N014 OUT 0 N023 N021 0 N006 OUT N012 OUT OUT N022 N017 N016 MP_02 MP_03 MP_04 N019 N018 N020 N024 N013 0 N008 IN N011 N009 N010 N004 N002 N003 N001 LTC3731 ;pnba )PLLIN)PLLFLTR)FCB)IN+)IN-)DIFFOUT)EAIN)SGND)Sense1+)Sense1-)Sense2+)Sense2-)Sense3-)Sense3+)Run/SS)Ith))))Boost3)TG3)SW3)BG3)BG2)PGND)BG1)Vcc)SW2)TG2)Boost2)SW1)TG1)Boost1)Pgood
R6 N021 N023 7.5K
R7 0 N021 6.04K
Rload OUT 0 .1
.tran 300u startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1920 1936
WIRE -704 -968 -800 -968
WIRE -400 -968 -704 -968
WIRE -144 -968 -400 -968
WIRE -16 -968 -144 -968
WIRE 128 -968 -16 -968
WIRE 240 -968 128 -968
WIRE 320 -968 240 -968
WIRE 416 -968 320 -968
WIRE -800 -952 -800 -968
WIRE -704 -952 -704 -968
WIRE -144 -952 -144 -968
WIRE -16 -952 -16 -968
WIRE 128 -952 128 -968
WIRE 416 -936 416 -968
WIRE -400 -888 -400 -968
WIRE -800 -856 -800 -872
WIRE -704 -856 -704 -872
WIRE -624 -856 -704 -856
WIRE 368 -856 -176 -856
WIRE 128 -760 128 -888
WIRE 128 -760 -176 -760
WIRE 160 -760 128 -760
WIRE 416 -760 416 -840
WIRE 416 -760 224 -760
WIRE -624 -664 -656 -664
WIRE 416 -664 416 -760
WIRE 416 -664 -176 -664
WIRE 560 -664 416 -664
WIRE 608 -664 560 -664
WIRE 720 -664 688 -664
WIRE 736 -664 720 -664
WIRE 832 -664 816 -664
WIRE 416 -648 416 -664
WIRE 560 -616 560 -664
WIRE -624 -568 -656 -568
WIRE 368 -568 -176 -568
WIRE 416 -520 416 -552
WIRE 560 -520 560 -552
WIRE -112 -472 -176 -472
WIRE 720 -472 720 -664
WIRE 720 -472 -112 -472
WIRE -112 -456 -112 -472
WIRE -112 -376 -112 -392
WIRE -112 -376 -176 -376
WIRE 832 -376 832 -664
WIRE 832 -376 -112 -376
WIRE 320 -360 320 -968
WIRE 272 -280 -176 -280
WIRE -16 -184 -16 -888
WIRE -16 -184 -176 -184
WIRE 112 -184 -16 -184
WIRE 320 -184 320 -264
WIRE 320 -184 176 -184
WIRE 320 -88 320 -184
WIRE 320 -88 -176 -88
WIRE 464 -88 320 -88
WIRE 608 -88 464 -88
WIRE 720 -88 688 -88
WIRE 736 -88 720 -88
WIRE 832 -88 832 -376
WIRE 832 -88 816 -88
WIRE 320 -72 320 -88
WIRE 464 -40 464 -88
WIRE 272 8 -176 8
WIRE 320 56 320 24
WIRE 464 56 464 24
WIRE -624 104 -656 104
WIRE -112 104 -176 104
WIRE 720 104 720 -88
WIRE 720 104 -112 104
WIRE -112 120 -112 104
WIRE -800 200 -816 200
WIRE -720 200 -736 200
WIRE -624 200 -640 200
WIRE -112 200 -112 184
WIRE -112 200 -176 200
WIRE 832 200 832 -88
WIRE 832 200 -112 200
WIRE 240 216 240 -968
WIRE -704 296 -720 296
WIRE -624 296 -640 296
WIRE 192 296 -176 296
WIRE -624 392 -656 392
WIRE -144 392 -144 -888
WIRE -144 392 -176 392
WIRE 0 392 -144 392
WIRE 240 392 240 312
WIRE 240 392 64 392
WIRE -704 488 -832 488
WIRE -624 488 -704 488
WIRE 240 488 240 392
WIRE 240 488 -176 488
WIRE 368 488 240 488
WIRE 608 488 368 488
WIRE 720 488 688 488
WIRE 736 488 720 488
WIRE 832 488 832 200
WIRE 832 488 816 488
WIRE -704 504 -704 488
WIRE 240 504 240 488
WIRE 368 536 368 488
WIRE -928 584 -960 584
WIRE -832 584 -832 488
WIRE -832 584 -848 584
WIRE -816 584 -832 584
WIRE -704 584 -704 568
WIRE -704 584 -736 584
WIRE -624 584 -704 584
WIRE 192 584 -176 584
WIRE 240 632 240 600
WIRE 368 632 368 600
WIRE -624 680 -704 680
WIRE -112 680 -176 680
WIRE 720 680 720 488
WIRE 720 680 -112 680
WIRE -112 696 -112 680
WIRE -624 776 -656 776
WIRE -112 776 -112 760
WIRE -112 776 -176 776
WIRE 832 776 832 488
WIRE 832 776 -112 776
WIRE -400 824 -400 808
WIRE -656 856 -656 776
WIRE 832 856 832 776
WIRE 832 856 -656 856
WIRE 960 856 832 856
WIRE 832 872 832 856
WIRE 960 872 960 856
WIRE -704 952 -704 680
WIRE 832 952 832 936
WIRE 832 952 -704 952
WIRE 832 968 832 952
WIRE 960 968 960 952
FLAG -816 200 0
FLAG -400 824 0
FLAG -800 -856 0
FLAG 416 -520 0
FLAG 560 -520 0
FLAG 320 56 0
FLAG 464 56 0
FLAG 240 632 0
FLAG 368 632 0
FLAG 832 968 0
FLAG 960 968 0
FLAG -960 584 0
FLAG 960 856 OUT
FLAG -656 392 0
FLAG -720 296 0
FLAG -800 -968 IN
SYMBOL VOLTAGE -800 -968 R0
SYMATTR InstName V1
SYMATTR Value 6
SYMBOL NMOS 368 -936 R0
SYMATTR InstName Q1
SYMATTR Value Si4866DY
SYMBOL nmos 368 -648 R0
SYMATTR InstName Q2
SYMATTR Value Si4866DY
SYMBOL cap 160 -776 M90
SYMATTR InstName C1
SYMATTR Value .1
SYMBOL schottky 112 -952 R0
SYMATTR InstName D1
SYMATTR Value 1N5817
SYMBOL schottky 544 -552 M180
SYMATTR InstName D2
SYMATTR Value 1N5817
SYMBOL RES 720 -680 M90
SYMATTR InstName R1
SYMATTR Value .003
SYMBOL cap -128 -456 R0
SYMATTR InstName C2
SYMATTR Value 1000p
SYMBOL ind 592 -648 R270
SYMATTR InstName L1
SYMATTR Value 1
SYMBOL RES -720 -968 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL nmos 272 -360 R0
SYMATTR InstName Q3
SYMATTR Value Si4866DY
SYMBOL nmos 272 -72 R0
SYMATTR InstName Q4
SYMATTR Value Si4866DY
SYMBOL cap 112 -200 M90
SYMATTR InstName C3
SYMATTR Value .1
SYMBOL schottky -32 -952 R0
SYMATTR InstName D3
SYMATTR Value 1N5817
SYMBOL schottky 448 24 M180
SYMATTR InstName D4
SYMATTR Value 1N5817
SYMBOL res 720 -104 M90
SYMATTR InstName R3
SYMATTR Value .003
SYMBOL cap -128 120 R0
SYMATTR InstName C4
SYMATTR Value 1000p
SYMBOL ind 592 -72 R270
SYMATTR InstName L2
SYMATTR Value 1
SYMBOL nmos 192 216 R0
SYMATTR InstName Q5
SYMATTR Value Si4866DY
SYMBOL nmos 192 504 R0
SYMATTR InstName Q6
SYMATTR Value Si4866DY
SYMBOL cap 0 376 M90
SYMATTR InstName C5
SYMATTR Value .1
SYMBOL schottky 352 600 M180
SYMATTR InstName D5
SYMATTR Value 1N5817
SYMBOL res 720 472 M90
SYMATTR InstName R4
SYMATTR Value .003
SYMBOL ind 592 504 R270
SYMATTR InstName L3
SYMATTR Value 1
SYMBOL schottky -160 -952 R0
SYMATTR InstName D6
SYMATTR Value 1N5817
SYMBOL cap -128 696 R0
SYMATTR InstName C6
SYMATTR Value 1000p
SYMBOL polcap 816 872 R0
SYMATTR InstName C7
SYMATTR Value 480
SYMATTR SpiceLine Rser=.01
SYMBOL cap -720 504 R0
SYMATTR InstName C8
SYMATTR Value 100p
SYMBOL cap -640 280 R90
SYMATTR InstName C9
SYMATTR Value 100p
SYMBOL cap -736 184 R90
SYMATTR InstName C10
SYMATTR Value 680p
SYMBOL res -624 184 R90
SYMATTR InstName R5
SYMATTR Value 5K
SYMBOL PowerProducts\\LTC3731 -400 -40 R0
SYMATTR InstName U1
SYMBOL res -832 600 R270
SYMATTR InstName R6
SYMATTR Value 7.5K
SYMBOL res -944 600 R270
SYMATTR InstName R7
SYMATTR Value 6.04K
SYMBOL res 944 856 R0
SYMATTR InstName Rload
SYMATTR Value .1