* SPICE netlist
MQ1 IN N003 N005 N005 STD30NF06L
L1 N005 OUT .68 Rser=1.5m
C1 OUT 0 660
R1 OUT N009 154K
R2 N009 0 48.7K
C2 N004 N005 .1
C3 N001 0 4.7
C4 N010 0 2200p Rser=15K Cpar=330p
C5 N006 0 .002
V1 IN 0 12
D1 N001 N004 CMDSH2-3
MQ2 N005 N007 0 0 STD30NF06L
R3 N005 N011 3.01K
C7 N011 OUT .047 Rpar=30.1K
C8 N008 0 .1 Rpar=82.5K
Rload OUT 0 .22
R4 N001 N002 100K
XU1 NC_01 N008 NC_02 N006 N010 N009 OUT N011 N002 0 N007 N001 IN N004 N003 N005 LTC3851A-1 ;pnba Mode/PLLIN)Freq/PLLFLTR)Run)TK/SS)Ith)Vfb)Sense-)Sense+)Pgood)GND)BG)IntVcc)Vin)Boost)TG)SW
.tran 2m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1344 752
WIRE 32 -376 -656 -376
WIRE -656 -296 -656 -376
WIRE -528 -296 -656 -296
WIRE -448 -296 -528 -296
WIRE 144 -296 0 -296
WIRE 352 -296 144 -296
WIRE -656 -280 -656 -296
WIRE 144 -280 144 -296
WIRE 352 -280 352 -296
WIRE -656 -200 -656 -216
WIRE -528 -200 -528 -216
WIRE -448 -200 -528 -200
WIRE 96 -200 0 -200
WIRE 352 -184 352 -200
WIRE 32 -104 32 -312
WIRE 32 -104 0 -104
WIRE 64 -104 32 -104
WIRE 144 -104 144 -184
WIRE 144 -104 128 -104
WIRE 144 -8 144 -104
WIRE 144 -8 0 -8
WIRE 304 -8 144 -8
WIRE 320 -8 304 -8
WIRE 416 -8 400 -8
WIRE 448 -8 416 -8
WIRE 576 -8 448 -8
WIRE 672 -8 576 -8
WIRE 144 8 144 -8
WIRE 576 8 576 -8
WIRE 672 8 672 -8
WIRE 448 56 448 -8
WIRE -608 88 -656 88
WIRE -448 88 -544 88
WIRE 96 88 0 88
WIRE 576 104 576 72
WIRE 672 104 672 88
WIRE 144 120 144 104
WIRE -560 184 -656 184
WIRE -448 184 -496 184
WIRE 448 184 448 136
WIRE 448 184 0 184
WIRE 448 200 448 184
WIRE -640 280 -656 280
WIRE -448 280 -576 280
WIRE 48 280 0 280
WIRE 192 280 48 280
WIRE 304 280 304 -8
WIRE 304 280 272 280
WIRE 48 296 48 280
WIRE 448 296 448 280
WIRE -448 376 -480 376
WIRE 48 376 48 360
WIRE 48 376 0 376
WIRE 416 376 416 -8
WIRE 416 376 48 376
FLAG -480 376 0
FLAG 144 120 0
FLAG 576 104 0
FLAG 672 104 0
FLAG 448 296 0
FLAG 672 -8 OUT
FLAG -656 -200 0
FLAG -656 280 0
FLAG -656 88 0
FLAG 352 -184 0
FLAG 352 -296 IN
FLAG -656 184 0
SYMBOL nmos 96 -280 R0
SYMATTR InstName Q1
SYMATTR Value STD30NF06L
SYMBOL ind 304 8 R270
SYMATTR InstName L1
SYMATTR Value .68
SYMATTR SpiceLine Rser=1.5m
SYMBOL cap 560 8 R0
SYMATTR InstName C1
SYMATTR Value 660
SYMBOL res 432 40 R0
SYMATTR InstName R1
SYMATTR Value 154K
SYMBOL res 432 184 R0
SYMATTR InstName R2
SYMATTR Value 48.7K
SYMBOL cap 64 -88 R270
SYMATTR InstName C2
SYMATTR Value .1
SYMBOL cap -672 -280 R0
SYMATTR InstName C3
SYMATTR Value 4.7
SYMBOL cap -576 264 R90
SYMATTR InstName C4
SYMATTR Value 2200p
SYMATTR SpiceLine Rser=15K Cpar=330p
SYMBOL cap -544 72 R90
SYMATTR InstName C5
SYMATTR Value .002
SYMBOL voltage 352 -296 R0
SYMATTR Value 12
SYMATTR InstName V1
SYMBOL schottky 16 -376 R0
SYMATTR Value CMDSH2-3
SYMATTR InstName D1
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL nmos 96 8 R0
SYMATTR InstName Q2
SYMATTR Value STD30NF06L
SYMBOL res 288 264 R90
SYMATTR InstName R3
SYMATTR Value 3.01K
SYMBOL cap 32 296 R0
SYMATTR Value .047
SYMATTR SpiceLine Rpar=30.1K
SYMATTR InstName C7
SYMBOL cap -496 168 R90
SYMATTR InstName C8
SYMATTR Value .1
SYMATTR SpiceLine Rpar=82.5K
SYMBOL res 656 -8 R0
SYMATTR InstName Rload
SYMATTR Value .22
SYMBOL res -544 -312 R0
SYMATTR InstName R4
SYMATTR Value 100K
SYMBOL PowerProducts\\LTC3851A-1 -224 40 R0
SYMATTR InstName U1