* SPICE netlist
R1 N018 0 30.1K
C3 N003 0 4.7
R2 OUT4 N017 900K
C5 OUT4 0 100 Rser=30m
L2 N009 OUT3 2.2 Rser=50m
R5 OUT3 N011 40.1K
R6 N011 0 100K
C6 OUT3 N011 16p
C7 OUT3 0 47 Rser=5m
Rload3 OUT3 0 .8
L3 N007 OUT2 1.5 Rser=10m
R8 OUT2 N008 230K
R9 N008 0 100K
C8 OUT2 N008 15p
C9 OUT2 0 47 Rser=5m
Rload2 OUT2 0 1.32
C10 N006 N007 .1
L4 N004 OUT1 2.2 Rser=10m
R11 OUT1 N005 399K
R12 N005 0 100K
C11 OUT1 N005 10p
C12 OUT1 0 22 Rser=10m
Rload1 OUT1 0 3.3
C13 N002 N004 .1
V1 IN 0 PWL(0 0 100u 12 2m 5)
L5 N012 N015 2.2 Rser=10m
XU1 NC_01 0 N004 N002 N006 N007 MP_02 MP_03 OUT2 NC_04 NC_05 N003 MP_06 OUT4 N014 N010 0 N012 IN N016 N013 N001 OUT4 N017 N008 N005 N011 N003 N018 N003 0 NC_07 0 OUT2 MP_08 N009 OUT4 MP_09 N003 NC_10 LT8603 ;pnba PG1)GND)SW1)BST1)BST2)SW2)))Bias)PG2)PG4)FSEL4A))PVin2)Gate4)INTVcc4)FSEL4B)ISN4)ISP4)TRKSS2)TRKSS1)EN/UVLO)Vin)FB4)FB2)FB1)FB3)INTVcc)Rt)Run3)CPOR)_RST)SYNC)PVin3))SW3)PVin1))POREN)PG3
R7 IN N012 4m
M1 N015 N014 0 0 RSS065N06
D1 N015 OUT4 MBRS360
R3 N017 0 100K
C4 OUT4 0 4.7 x2 Rser=5m
R4 OUT4 N001 1.8Meg
R10 N001 0 1.2Meg
C1 N010 0 4.7
C2 N013 0 .001
C15 N016 0 .001
.tran 2.5m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1536 1440
WIRE -400 -720 -752 -720
WIRE -304 -720 -400 -720
WIRE -208 -720 -304 -720
WIRE 672 -720 -208 -720
WIRE -752 -704 -752 -720
WIRE 144 -688 -112 -688
WIRE -400 -672 -400 -720
WIRE -304 -672 -304 -720
WIRE -208 -672 -208 -720
WIRE -112 -672 -112 -688
WIRE -752 -608 -752 -624
WIRE -496 -608 -752 -608
WIRE 0 -608 -32 -608
WIRE -752 -592 -752 -608
WIRE 0 -592 0 -608
WIRE -496 -512 -624 -512
WIRE 0 -512 0 -528
WIRE 0 -512 -32 -512
WIRE 48 -512 0 -512
WIRE 176 -512 128 -512
WIRE 256 -512 176 -512
WIRE 416 -512 256 -512
WIRE 512 -512 416 -512
WIRE -752 -496 -752 -512
WIRE 176 -496 176 -512
WIRE 416 -496 416 -512
WIRE 512 -496 512 -512
WIRE 176 -416 176 -432
WIRE 176 -416 -32 -416
WIRE 256 -416 256 -432
WIRE 256 -416 176 -416
WIRE 256 -400 256 -416
WIRE 416 -400 416 -432
WIRE 512 -400 512 -416
WIRE 0 -320 -32 -320
WIRE 0 -304 0 -320
WIRE 256 -304 256 -320
WIRE 0 -224 0 -240
WIRE 0 -224 -32 -224
WIRE 48 -224 0 -224
WIRE 144 -224 144 -688
WIRE 144 -224 128 -224
WIRE 176 -224 144 -224
WIRE 256 -224 176 -224
WIRE 416 -224 256 -224
WIRE 512 -224 416 -224
WIRE 176 -208 176 -224
WIRE 416 -208 416 -224
WIRE 512 -208 512 -224
WIRE 176 -128 176 -144
WIRE 176 -128 -32 -128
WIRE 256 -128 256 -144
WIRE 256 -128 176 -128
WIRE 416 -128 416 -144
WIRE 256 -112 256 -128
WIRE 512 -112 512 -128
WIRE 144 -32 144 -224
WIRE 144 -32 -32 -32
WIRE 256 -16 256 -32
WIRE -704 64 -720 64
WIRE -624 64 -624 -512
WIRE -624 64 -640 64
WIRE -496 64 -624 64
WIRE 32 64 -32 64
WIRE 160 64 112 64
WIRE 256 64 160 64
WIRE 416 64 256 64
WIRE 512 64 416 64
WIRE 160 80 160 64
WIRE 416 80 416 64
WIRE 512 80 512 64
WIRE -576 160 -592 160
WIRE -496 160 -512 160
WIRE 160 160 160 144
WIRE 160 160 -32 160
WIRE 256 160 256 144
WIRE 256 160 160 160
WIRE 256 176 256 160
WIRE 416 176 416 144
WIRE 512 176 512 160
WIRE -624 256 -624 64
WIRE -496 256 -624 256
WIRE 112 256 -32 256
WIRE 192 256 112 256
WIRE 112 272 112 256
WIRE 256 272 256 256
WIRE 192 304 192 256
WIRE 768 304 192 304
WIRE 768 320 768 304
WIRE -496 352 -512 352
WIRE 112 352 -32 352
WIRE 112 368 112 352
WIRE 768 416 768 400
WIRE -576 448 -592 448
WIRE -496 448 -512 448
WIRE 16 448 -32 448
WIRE 112 464 112 448
WIRE 240 464 112 464
WIRE 368 464 304 464
WIRE 480 464 368 464
WIRE 560 464 480 464
WIRE 672 464 672 -720
WIRE 672 464 560 464
WIRE 112 480 112 464
WIRE 368 480 368 464
WIRE 480 480 480 464
WIRE 560 480 560 464
WIRE -576 544 -592 544
WIRE -496 544 -512 544
WIRE -16 544 -32 544
WIRE 16 560 16 448
WIRE 64 560 16 560
WIRE 480 560 480 544
WIRE 560 560 560 544
WIRE 368 576 368 560
WIRE 368 576 304 576
WIRE 112 592 112 576
WIRE 368 592 368 576
WIRE -624 624 -624 256
WIRE -416 624 -416 608
WIRE -416 624 -624 624
WIRE -336 624 -336 608
WIRE -256 624 -256 608
WIRE -176 624 -176 608
WIRE -96 624 -96 608
WIRE -16 624 -16 544
WIRE 304 624 304 576
WIRE 304 624 -16 624
WIRE 368 688 368 672
WIRE -336 720 -336 704
FLAG -96 624 0
FLAG -336 720 0
FLAG -720 64 0
FLAG 512 176 0
FLAG 512 64 OUT3
FLAG 512 -112 0
FLAG 512 -224 OUT2
FLAG 512 -400 0
FLAG 512 -512 OUT1
FLAG 768 416 0
FLAG 768 304 IN
FLAG 112 592 0
FLAG 368 688 0
FLAG 480 560 0
FLAG 560 560 0
FLAG -176 624 0
FLAG -256 624 0
FLAG -752 -496 0
FLAG -592 160 0
FLAG -592 448 0
FLAG -592 544 0
FLAG -512 352 0
FLAG 560 464 OUT4
FLAG 256 -304 0
FLAG 416 -400 0
FLAG 416 -128 0
FLAG 256 -16 0
FLAG 416 176 0
FLAG 256 272 0
SYMBOL res -352 608 R0
SYMATTR InstName R1
SYMATTR Value 30.1K
SYMBOL cap -640 48 R90
SYMATTR InstName C3
SYMATTR Value 4.7
SYMBOL res 352 464 R0
SYMATTR InstName R2
SYMATTR Value 900K
SYMBOL cap 464 480 R0
SYMATTR InstName C5
SYMATTR Value 100
SYMATTR SpiceLine Rser=30m
SYMBOL ind 16 80 R270
SYMATTR InstName L2
SYMATTR Value 2.2
SYMATTR SpiceLine Rser=50m
SYMBOL res 240 48 R0
SYMATTR InstName R5
SYMATTR Value 40.1K
SYMBOL res 240 160 R0
SYMATTR InstName R6
SYMATTR Value 100K
SYMBOL cap 144 80 R0
SYMATTR InstName C6
SYMATTR Value 16p
SYMBOL cap 400 80 R0
SYMATTR InstName C7
SYMATTR Value 47
SYMATTR SpiceLine Rser=5m
SYMBOL res 496 64 R0
SYMATTR InstName Rload3
SYMATTR Value .8
SYMBOL ind 32 -208 R270
SYMATTR InstName L3
SYMATTR Value 1.5
SYMATTR SpiceLine Rser=10m
SYMBOL res 240 -240 R0
SYMATTR InstName R8
SYMATTR Value 230K
SYMBOL res 240 -128 R0
SYMATTR InstName R9
SYMATTR Value 100K
SYMBOL cap 160 -208 R0
SYMATTR InstName C8
SYMATTR Value 15p
SYMBOL cap 400 -208 R0
SYMATTR InstName C9
SYMATTR Value 47
SYMATTR SpiceLine Rser=5m
SYMBOL res 496 -224 R0
SYMATTR InstName Rload2
SYMATTR Value 1.32
SYMBOL cap -16 -304 R0
SYMATTR InstName C10
SYMATTR Value .1
SYMBOL ind 32 -496 R270
SYMATTR InstName L4
SYMATTR Value 2.2
SYMATTR SpiceLine Rser=10m
SYMBOL res 240 -528 R0
SYMATTR InstName R11
SYMATTR Value 399K
SYMBOL res 240 -416 R0
SYMATTR InstName R12
SYMATTR Value 100K
SYMBOL cap 160 -496 R0
SYMATTR InstName C11
SYMATTR Value 10p
SYMBOL cap 400 -496 R0
SYMATTR InstName C12
SYMATTR Value 22
SYMATTR SpiceLine Rser=10m
SYMBOL res 496 -512 R0
SYMATTR InstName Rload1
SYMATTR Value 3.3
SYMBOL cap -16 -592 R0
SYMATTR InstName C13
SYMATTR Value .1
SYMBOL voltage 768 304 R0
SYMATTR InstName V1
SYMATTR Value PWL(0 0 100u 12 2m 5)
SYMBOL ind 96 352 R0
SYMATTR InstName L5
SYMATTR Value 2.2
SYMATTR SpiceLine Rser=10m
SYMBOL PowerProducts\\LT8603 -256 -32 R0
SYMATTR InstName U1
SYMBOL res 96 256 R0
SYMATTR InstName R7
SYMATTR Value 4m
SYMBOL NMOS 64 480 R0
SYMATTR InstName M1
SYMATTR Value RSS065N06
SYMBOL schottky 240 480 R270
SYMATTR InstName D1
SYMATTR Value MBRS360
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 352 576 R0
SYMATTR InstName R3
SYMATTR Value 100K
SYMBOL cap 544 480 R0
SYMATTR Value2 x2
SYMATTR InstName C4
SYMATTR Value 4.7
SYMATTR SpiceLine Rser=5m
SYMBOL res -768 -720 R0
SYMATTR InstName R4
SYMATTR Value 1.8Meg
SYMBOL res -768 -608 R0
SYMATTR InstName R10
SYMATTR Value 1.2Meg
SYMBOL cap -512 144 R90
SYMATTR InstName C1
SYMATTR Value 4.7
SYMBOL cap -512 432 R90
SYMATTR InstName C2
SYMATTR Value .001
SYMBOL cap -512 528 R90
SYMATTR InstName C15
SYMATTR Value .001