* SPICE netlist
R1 N022 0 39.2K
C1 N024 0 10n
V1 IN 0 pwl(0 0 2m 12)
R2 IN N001 6m
R3 IN N004 576K
R4 N004 0 412K
C2 N015 0 10
C3 N005 N002 0.1
L1 N001 N002 22 Rser=14.6m
R5 OUT N012 125m
D1 N019 0 LXK2-PW14 M=2 N=5
R6 N007 N006 100K
R7 OUT N008 1Meg
R8 N008 0 36.5K
C4 N013 0 10n
C5 N023 0 6.8n
L2 N017 N018 47 Rser=0.5
C6 N018 N021 .1
XU1 N013 N011 N022 N023 N024 N006 N007 N010 N025 N008 0 N014 N012 OUT N009 N002 N005 N003 N001 IN IN N018 N021 N017 N015 N004 N020 N016 LT3762 ;pnba PWM)DIM)RT)SSFM)SS)Vref)CTRL1)CTRL2)Vc)FB)GND)PWMTG)ISN)ISP)TG)SW)Boost)BG)SNSN)SNSP)Vin)AuxSW1)AuxBST)AuxSW2)IntVcc)EN/UVLO)_OpenLED)_ShortLED
C7 N025 0 10n Rser=4.99K
MQ1 N002 N003 0 0 BSC340N08NS3
MQ2 N019 N014 N012 N012 Si7113DN
MQ3 OUT N009 N002 N002 BSC340N08NS3
V2 N011 0 2.5
R9 N016 N015 100K
R10 N020 N015 100K
C8 OUT 0 4.7 x4 Rser=12m
R11 N010 N006 100K
.tran 3m

* LTspice schematic (.asc)
Version 4
SHEET 1 1632 992
WIRE -560 -496 -816 -496
WIRE -320 -496 -560 -496
WIRE -208 -496 -320 -496
WIRE -192 -496 -208 -496
WIRE -80 -496 -112 -496
WIRE -16 -496 -80 -496
WIRE 128 -496 64 -496
WIRE 336 -496 128 -496
WIRE 368 -496 336 -496
WIRE 592 -496 464 -496
WIRE 672 -496 592 -496
WIRE 816 -496 672 -496
WIRE -816 -480 -816 -496
WIRE 128 -480 128 -496
WIRE 672 -480 672 -496
WIRE -560 -432 -560 -496
WIRE 80 -400 32 -400
WIRE 672 -400 672 -416
WIRE -816 -384 -816 -400
WIRE 128 -368 128 -384
WIRE -560 -336 -560 -352
WIRE -448 -336 -560 -336
WIRE -320 -336 -320 -496
WIRE -208 -336 -208 -496
WIRE -80 -336 -80 -496
WIRE 32 -336 32 -400
WIRE -560 -320 -560 -336
WIRE 336 -272 336 -496
WIRE 336 -272 112 -272
WIRE 592 -272 592 -496
WIRE -448 -240 -448 -336
WIRE -400 -240 -448 -240
WIRE -560 -224 -560 -240
WIRE 160 -208 112 -208
WIRE 336 -208 336 -272
WIRE 336 -208 224 -208
WIRE -512 -176 -560 -176
WIRE -400 -176 -432 -176
WIRE 592 -176 592 -192
WIRE 592 -176 512 -176
WIRE 592 -160 592 -176
WIRE 384 -144 384 -448
WIRE 384 -144 112 -144
WIRE -560 -112 -560 -176
WIRE -400 -112 -560 -112
WIRE 512 -80 512 -176
WIRE 512 -80 112 -80
WIRE 592 -64 592 -80
WIRE 816 -64 816 -496
WIRE 816 -64 720 -64
WIRE -560 -48 -560 -112
WIRE -512 -48 -560 -48
WIRE -400 -48 -432 -48
WIRE 816 -48 816 -64
WIRE 720 -16 720 -64
WIRE 720 -16 112 -16
WIRE -640 16 -656 16
WIRE -400 16 -560 16
WIRE 816 48 816 32
WIRE 816 48 112 48
WIRE -512 80 -528 80
WIRE -400 80 -448 80
WIRE 816 96 816 48
WIRE 768 112 112 112
WIRE -544 160 -560 160
WIRE -400 160 -464 160
WIRE 144 176 112 176
WIRE 256 176 224 176
WIRE 816 224 816 192
WIRE -560 240 -560 160
WIRE -496 240 -560 240
WIRE -400 240 -416 240
WIRE 256 240 256 176
WIRE 256 240 112 240
WIRE -560 304 -560 240
WIRE -496 304 -560 304
WIRE -400 304 -496 304
WIRE 144 304 112 304
WIRE 256 304 256 240
WIRE 256 304 208 304
WIRE 816 320 816 288
WIRE -496 336 -496 304
WIRE -240 400 -240 384
WIRE -496 416 -496 400
WIRE -336 416 -336 384
WIRE -144 416 -144 384
WIRE -48 416 -48 384
WIRE 48 416 48 384
WIRE -336 496 -336 480
WIRE -240 496 -240 480
WIRE -48 496 -48 480
WIRE 48 496 48 480
FLAG -144 416 0
FLAG -240 496 0
FLAG -48 496 0
FLAG 48 496 0
FLAG -816 -384 0
FLAG -560 -224 0
FLAG -496 416 0
FLAG 128 -368 0
FLAG 672 -400 0
FLAG 592 -64 0
FLAG 816 320 0
FLAG -528 80 0
FLAG -816 -496 IN
FLAG -336 496 0
FLAG -656 16 0
FLAG 816 -496 OUT
SYMBOL res -256 384 R0
SYMATTR InstName R1
SYMATTR Value 39.2K
SYMBOL cap -64 416 R0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL voltage -816 -496 R0
SYMATTR InstName V1
SYMATTR Value pwl(0 0 2m 12)
SYMBOL res -208 -480 R270
SYMATTR InstName R2
SYMATTR Value 6m
SYMBOL res -576 -448 R0
SYMATTR InstName R3
SYMATTR Value 576K
SYMBOL res -576 -336 R0
SYMATTR InstName R4
SYMATTR Value 412K
SYMBOL cap -512 336 R0
SYMATTR InstName C2
SYMATTR Value 10
SYMBOL cap 160 -192 R270
SYMATTR InstName C3
SYMATTR Value 0.1
SYMBOL ind -32 -480 R270
SYMATTR InstName L1
SYMATTR Value 22
SYMATTR SpiceLine Rser=14.6m
SYMBOL res 800 -64 R0
SYMATTR InstName R5
SYMATTR Value 125m
SYMBOL LED 800 224 R0
SYMATTR Value2 M=2 N=5
SYMATTR InstName D1
SYMATTR Value LXK2-PW14
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -416 -192 R90
SYMATTR InstName R6
SYMATTR Value 100K
SYMBOL res 576 -288 R0
SYMATTR InstName R7
SYMATTR Value 1Meg
SYMBOL res 576 -176 R0
SYMATTR InstName R8
SYMATTR Value 36.5K
SYMBOL cap -448 64 R90
SYMATTR InstName C4
SYMATTR Value 10n
SYMBOL cap -352 416 R0
SYMATTR InstName C5
SYMATTR Value 6.8n
SYMBOL ind 128 192 R270
SYMATTR InstName L2
SYMATTR Value 47
SYMATTR SpiceLine Rser=0.5
SYMBOL cap 208 320 M270
SYMATTR InstName C6
SYMATTR Value .1
SYMBOL LT3762 -144 16 R0
SYMATTR InstName U1
SYMBOL cap 32 416 R0
SYMATTR Value 10n
SYMATTR SpiceLine Rser=4.99K
SYMATTR InstName C7
SYMBOL nmos 80 -480 R0
SYMATTR InstName Q1
SYMATTR Value BSC340N08NS3
SYMBOL pmos 768 192 M180
SYMATTR InstName Q2
SYMATTR Value Si7113DN
SYMBOL nmos 464 -448 M270
SYMATTR InstName Q3
SYMATTR Value BSC340N08NS3
SYMBOL voltage -544 16 R90
SYMATTR InstName V2
SYMATTR Value 2.5
SYMBOL res -448 144 R90
SYMATTR InstName R9
SYMATTR Value 100K
SYMBOL res -400 224 R90
SYMATTR InstName R10
SYMATTR Value 100K
SYMBOL cap 656 -480 R0
SYMATTR Value 4.7
SYMATTR Value2 x4
SYMATTR SpiceLine Rser=12m
SYMATTR InstName C8
SYMBOL res -416 -64 R90
SYMATTR InstName R11
SYMATTR Value 100K