* SPICE netlist
MQ1 IN N003 N005 N005 RJK0305DPB
L1 N005 N006 .33 Rser=1.5m
C1 OUT 0 150 Rser=5m
R1 OUT N011 357K
R2 N011 0 115K
C2 N004 N005 .1
C3 N001 0 4.7
C4 N010 0 820p Rser=2.49K
C5 N009 0 .01
V1 IN 0 12
D1 N001 N004 CMDSH2-3
MQ2 N005 N008 0 0 RJK0301DPB
Rload OUT 0 .66
R4 N006 OUT 4m
R3 N007 0 100K
V2 N002 0 3.3
XU1 OUT N007 MP_01 MP_02 NC_03 0 N002 MP_04 MP_05 MP_06 MP_07 MP_08 MP_09 MP_10 MP_11 MP_12 MP_13 MP_14 N001 NC_15 0 IN N008 N004 N005 N003 NC_16 NC_17 N009 N010 N011 N006 LTC7800 ;pnba Sense-)Freq)))PLLIN/Mode)SGND)Run))))))))))))INTVcc)EXTVcc)PGND)Vin)BG)Boost)SW)TG)Pgood)Ilim)Track/SS)Ith)Vfb)Sense+
.tran 1m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1280 800
WIRE -320 -400 -624 -400
WIRE -96 -400 -320 -400
WIRE -624 -384 -624 -400
WIRE 96 -384 -416 -384
WIRE 304 -384 96 -384
WIRE 96 -368 96 -384
WIRE 304 -368 304 -384
WIRE -416 -352 -416 -384
WIRE -320 -352 -320 -400
WIRE -624 -304 -624 -320
WIRE -512 -288 -592 -288
WIRE 48 -288 -128 -288
WIRE -592 -272 -592 -288
WIRE -96 -272 -96 -400
WIRE 304 -272 304 -288
WIRE -96 -192 -96 -208
WIRE -96 -192 -128 -192
WIRE 32 -192 -96 -192
WIRE 96 -192 96 -272
WIRE -592 -176 -592 -192
WIRE 96 -96 96 -192
WIRE 96 -96 -128 -96
WIRE 160 -96 96 -96
WIRE 272 -96 240 -96
WIRE 288 -96 272 -96
WIRE 384 -96 368 -96
WIRE 432 -96 384 -96
WIRE 496 -96 432 -96
WIRE 640 -96 496 -96
WIRE 96 -80 96 -96
WIRE 496 -80 496 -96
WIRE 640 -80 640 -96
WIRE -608 0 -624 0
WIRE -512 0 -528 0
WIRE 48 0 -128 0
WIRE 496 16 496 -16
WIRE 640 16 640 0
WIRE 96 32 96 16
WIRE 272 96 272 -96
WIRE 272 96 -128 96
WIRE 432 144 432 -96
WIRE -592 192 -624 192
WIRE -512 192 -528 192
WIRE 384 192 384 -96
WIRE 384 192 -128 192
WIRE -608 288 -624 288
WIRE -512 288 -544 288
WIRE 432 288 432 224
WIRE 432 288 -128 288
WIRE 432 304 432 288
WIRE -400 368 -400 352
WIRE -240 368 -240 352
WIRE 432 400 432 384
FLAG 96 32 0
FLAG 496 16 0
FLAG 640 16 0
FLAG 432 400 0
FLAG 640 -96 OUT
FLAG -624 -304 0
FLAG -624 288 0
FLAG -624 192 0
FLAG 304 -272 0
FLAG 304 -384 IN
FLAG -400 368 0
FLAG -240 368 0
FLAG -624 0 0
FLAG -592 -176 0
SYMBOL nmos 48 -368 R0
SYMATTR InstName Q1
SYMATTR Value RJK0305DPB
SYMBOL ind 144 -80 R270
SYMATTR InstName L1
SYMATTR Value .33
SYMATTR SpiceLine Rser=1.5m
SYMBOL cap 480 -80 R0
SYMATTR SpiceLine Rser=5m
SYMATTR Value 150
SYMATTR InstName C1
SYMBOL res 416 128 R0
SYMATTR InstName R1
SYMATTR Value 357K
SYMBOL res 416 288 R0
SYMATTR InstName R2
SYMATTR Value 115K
SYMBOL cap 32 -176 R270
SYMATTR InstName C2
SYMATTR Value .1
SYMBOL cap -640 -384 R0
SYMATTR InstName C3
SYMATTR Value 4.7
SYMBOL cap -544 272 R90
SYMATTR InstName C4
SYMATTR Value 820p
SYMATTR SpiceLine Rser=2.49K
SYMBOL cap -528 176 R90
SYMATTR InstName C5
SYMATTR Value .01
SYMBOL voltage 304 -384 R0
SYMATTR Value 12
SYMATTR InstName V1
SYMBOL schottky -112 -272 R0
SYMATTR Value CMDSH2-3
SYMATTR InstName D1
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL nmos 48 -80 R0
SYMATTR InstName Q2
SYMATTR Value RJK0301DPB
SYMBOL res 624 -96 R0
SYMATTR InstName Rload
SYMATTR Value .66
SYMBOL res 272 -80 R270
SYMATTR InstName R4
SYMATTR Value 4m
SYMBOL res -512 -16 R90
SYMATTR InstName R3
SYMATTR Value 100K
SYMBOL voltage -592 -288 R0
SYMATTR Value 3.3
SYMATTR InstName V2
SYMBOL PowerProducts\\LTC7800 -320 0 R0
SYMATTR InstName U1