* SPICE netlist
V1 IN 0 PWL(0 0 .2m 12)
R1 OUT N001 263K
D1 IN N003 MMSD4148
C1 N003 N005 .1
MQ1 N005 N009 0 0 Si7884DP
C2 IN 0 1
D2 N005 OUT MBRS1100
R2 OUT N008 29.4K
R3 N008 0 1K
C3 OUT 0 500 Rser=10m
C4 N007 N008 .01 Rser=100K Cpar=100p
C5 N006 0 1000p
XU1 N001 IN IN N002 N007 N008 N006 0 IN IN IN N009 0 N005 N004 N003 LTC3814-5 ;pnba Ioff)Voff)Vrng)Pgood)Ith)FB)Run/SS)SGND)NDRV)EXTVcc)INTVcc)BG)PGND)SW)TG)Boost
L1 IN N005 4.7 Rpar=1K
MQ2 OUT N004 N005 N005 Si7884DP
Rload OUT 0 6
.tran 3m

* LTspice schematic (.asc)
Version 4
SHEET 1 1504 784
WIRE 592 -392 -272 -392
WIRE -496 -376 -752 -376
WIRE 192 -376 -496 -376
WIRE 272 -376 192 -376
WIRE -752 -360 -752 -376
WIRE -272 -360 -272 -392
WIRE 192 -296 192 -376
WIRE 192 -296 -112 -296
WIRE -752 -264 -752 -280
WIRE -272 -264 -272 -280
WIRE -112 -264 -112 -296
WIRE 272 -264 272 -376
WIRE -384 -200 -400 -200
WIRE 32 -200 0 -200
WIRE 80 -200 32 -200
WIRE 192 -200 192 -296
WIRE 192 -200 144 -200
WIRE -496 -104 -496 -376
WIRE -384 -104 -496 -104
WIRE 352 -104 0 -104
WIRE 32 -88 32 -200
WIRE 352 -56 352 -104
WIRE -496 -8 -496 -104
WIRE -384 -8 -496 -8
WIRE 32 -8 32 -24
WIRE 32 -8 0 -8
WIRE 272 -8 272 -184
WIRE 272 -8 32 -8
WIRE 320 -8 272 -8
WIRE 336 -8 320 -8
WIRE 464 -8 432 -8
WIRE 512 -8 464 -8
WIRE 592 -8 592 -392
WIRE 592 -8 512 -8
WIRE 752 -8 592 -8
WIRE 592 8 592 -8
WIRE 752 8 752 -8
WIRE -480 88 -512 88
WIRE -384 88 -416 88
WIRE 32 88 0 88
WIRE 192 88 192 -200
WIRE 192 88 32 88
WIRE 192 104 192 88
WIRE 320 104 320 -8
WIRE 352 104 320 104
WIRE 464 104 464 -8
WIRE 464 104 416 104
WIRE 592 104 592 72
WIRE 752 104 752 88
WIRE 512 120 512 -8
WIRE -384 184 -544 184
WIRE 32 184 32 88
WIRE 32 184 0 184
WIRE 192 184 192 168
WIRE -544 200 -544 184
WIRE 272 200 272 -8
WIRE 512 216 512 200
WIRE 512 216 432 216
WIRE 512 232 512 216
WIRE -544 280 -544 264
WIRE -384 280 -544 280
WIRE 224 280 0 280
WIRE 272 312 272 296
WIRE 512 328 512 312
WIRE -272 360 -272 344
WIRE -112 360 -112 344
WIRE -544 392 -544 280
WIRE 432 392 432 216
WIRE 432 392 -544 392
FLAG 272 312 0
FLAG 192 184 0
FLAG -112 360 0
FLAG -272 360 0
FLAG 512 328 0
FLAG 592 104 0
FLAG 752 104 0
FLAG -512 88 0
FLAG -752 -264 0
FLAG 752 -8 OUT
FLAG -752 -376 IN
SYMBOL voltage -752 -376 R0
SYMATTR InstName V1
SYMATTR Value PWL(0 0 .2m 12)
SYMBOL res -288 -376 R0
SYMATTR InstName R1
SYMATTR Value 263K
SYMBOL diode 144 -216 R90
SYMATTR InstName D1
SYMATTR Value MMSD4148
SYMBOL cap 16 -88 R0
SYMATTR InstName C1
SYMATTR Value .1
SYMBOL nmos 224 200 R0
SYMATTR InstName Q1
SYMATTR Value Si7884DP
SYMBOL cap 176 104 R0
SYMATTR InstName C2
SYMATTR Value 1
SYMBOL schottky 352 88 M90
SYMATTR InstName D2
SYMATTR Value MBRS1100
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 496 104 R0
SYMATTR InstName R2
SYMATTR Value 29.4K
SYMBOL res 496 216 R0
SYMATTR InstName R3
SYMATTR Value 1K
SYMBOL cap 576 8 R0
SYMATTR SpiceLine Rser=10m
SYMATTR Value 500
SYMATTR InstName C3
SYMBOL cap -560 200 R0
SYMATTR SpiceLine Rser=100K
SYMATTR SpiceLine2 Cpar=100p
SYMATTR InstName C4
SYMATTR Value .01
SYMBOL cap -416 72 R90
SYMATTR InstName C5
SYMATTR Value 1000p
SYMBOL PowerProducts\\LTC3814-5 -192 40 R0
SYMATTR InstName U1
SYMBOL ind 256 -280 R0
SYMATTR InstName L1
SYMATTR Value 4.7
SYMATTR SpiceLine Rpar=1K
SYMBOL nmos 432 -56 R90
SYMATTR InstName Q2
SYMATTR Value Si7884DP
SYMBOL res 736 -8 R0
SYMATTR InstName Rload
SYMATTR Value 6