* SPICE netlist
R1 N023 0 82.5K
C1 N019 0 10n
C2 N017 N016 4700p
R2 N015 N014 50
C3 N014 0 1n
R3 N013 N012 50
C4 N012 0 1n
C5 N006 0 0.22
R4 IN N001 2.5m
R5 IN N003 1K
R6 N001 N004 1K
C6 N003 N004 1
R7 IN N002 84.5K
R8 N002 0 15.4K
C7 N001 0 4.7
C8 N005 0 4.7
D1 N005 N007 1N5819
C9 N007 N009 0.22
MQ1 N001 N008 N009 N009 RJK0305DPB
MQ2 N009 N011 0 0 RJK0301DPB
L1 N009 N010 1.5 Rser=2m
R9 N010 OUT 2.5m
R10 OUT N018 47.5K
R11 N018 0 12.1K
C10 OUT 0 220 x2 V=6.3 Irms=3.2 Rser=0.012 Lser=0 mfg="KEMET" pn="T520V227M006ASE012" type="Tantalum"
D2 OUT N021 PT-121-B
MQ3 N021 N020 0 0 IRF6201
R12 N016 0 59K
V1 IN 0 24
V2 N022 0 PULSE(0 2 .1m 10n 10n 20u 50u)
XU1 N011 N005 N001 N002 N006 N004 N003 N013 NC_01 N006 N018 0 N006 N006 N019 OUT N010 N017 N015 N023 N007 N022 N009 N020 N008 LT3763 ;pnba BG)INTVCC)VIN)EN/UVLO)VREF)VINN)VINP)IVINMON)_FAULT)FBIN)FB)GND)CTRL2)CTRL1)SS)SENSE-)SENSE+)VC)ISMON)RT)BOOST)PWM)SW)PWMOUT)TG
.tran 5m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1648 1280
WIRE -792 -640 -824 -640
WIRE -680 -640 -792 -640
WIRE -424 -640 -680 -640
WIRE -360 -640 -424 -640
WIRE -248 -640 -280 -640
WIRE -184 -640 -248 -640
WIRE -120 -640 -184 -640
WIRE 248 -640 -120 -640
WIRE -680 -624 -680 -640
WIRE -424 -624 -424 -640
WIRE -248 -624 -248 -640
WIRE -120 -624 -120 -640
WIRE -824 -608 -824 -640
WIRE -120 -544 -120 -560
WIRE -680 -528 -680 -544
WIRE -536 -528 -680 -528
WIRE -424 -512 -424 -544
WIRE -376 -512 -424 -512
WIRE -360 -512 -376 -512
WIRE -280 -512 -296 -512
WIRE -248 -512 -248 -544
WIRE -248 -512 -280 -512
WIRE -824 -496 -824 -528
WIRE -680 -496 -680 -528
WIRE -376 -464 -376 -512
WIRE -280 -464 -280 -512
WIRE -184 -464 -184 -640
WIRE -680 -400 -680 -416
WIRE -536 -400 -536 -528
WIRE -472 -400 -536 -400
WIRE -8 -400 -88 -400
WIRE 136 -400 -8 -400
WIRE -8 -384 -8 -400
WIRE 136 -384 136 -400
WIRE -536 -304 -680 -304
WIRE -472 -304 -536 -304
WIRE -8 -304 -8 -320
WIRE -8 -304 -88 -304
WIRE 136 -304 136 -320
WIRE -680 -288 -680 -304
WIRE 248 -288 248 -640
WIRE -680 -208 -680 -224
WIRE -536 -208 -536 -304
WIRE -472 -208 -536 -208
WIRE 200 -208 -88 -208
WIRE -8 -192 -8 -304
WIRE -536 -112 -536 -208
WIRE -472 -112 -536 -112
WIRE -8 -112 -8 -128
WIRE -8 -112 -88 -112
WIRE 248 -112 248 -192
WIRE 248 -112 -8 -112
WIRE 328 -112 248 -112
WIRE 472 -112 408 -112
WIRE 488 -112 472 -112
WIRE 584 -112 568 -112
WIRE 632 -112 584 -112
WIRE 712 -112 632 -112
WIRE 792 -112 712 -112
WIRE 824 -112 792 -112
WIRE 248 -96 248 -112
WIRE 712 -96 712 -112
WIRE -536 -16 -536 -112
WIRE -472 -16 -536 -16
WIRE 200 -16 -88 -16
WIRE 712 -16 712 -32
WIRE 248 32 248 0
WIRE -664 80 -680 80
WIRE -584 80 -600 80
WIRE -472 80 -504 80
WIRE 472 80 472 -112
WIRE 472 80 -88 80
WIRE 632 160 632 -112
WIRE -664 176 -680 176
WIRE -584 176 -600 176
WIRE -472 176 -504 176
WIRE 584 176 584 -112
WIRE 584 176 -88 176
WIRE -664 272 -680 272
WIRE -568 272 -584 272
WIRE -472 272 -504 272
WIRE 632 272 632 240
WIRE 632 272 -88 272
WIRE 632 288 632 272
WIRE 824 304 824 -112
WIRE -568 368 -584 368
WIRE -472 368 -504 368
WIRE 472 368 -88 368
WIRE 632 384 632 368
WIRE 824 416 824 368
WIRE -472 464 -792 464
WIRE -792 496 -792 464
WIRE 472 496 472 368
WIRE 776 496 472 496
WIRE 824 528 824 512
WIRE -344 544 -344 528
WIRE -216 544 -216 528
WIRE -792 608 -792 576
WIRE -344 640 -344 624
FLAG -216 544 0
FLAG -344 640 0
FLAG -792 608 0
FLAG -584 368 0
FLAG -680 272 0
FLAG -680 176 0
FLAG -680 80 0
FLAG -680 -208 0
FLAG -824 -496 0
FLAG -680 -400 0
FLAG -120 -544 0
FLAG 136 -304 0
FLAG 248 32 0
FLAG 632 384 0
FLAG 712 -16 0
FLAG 824 528 0
FLAG -792 -640 IN
FLAG 792 -112 OUT
SYMBOL res -360 528 R0
SYMATTR InstName R1
SYMATTR Value 82.5K
SYMBOL cap -504 352 R90
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL cap -504 256 R90
SYMATTR InstName C2
SYMATTR Value 4700p
SYMBOL res -488 160 R90
SYMATTR InstName R2
SYMATTR Value 50
SYMBOL cap -600 160 R90
SYMATTR InstName C3
SYMATTR Value 1n
SYMBOL res -488 64 R90
SYMATTR InstName R3
SYMATTR Value 50
SYMBOL cap -600 64 R90
SYMATTR InstName C4
SYMATTR Value 1n
SYMBOL cap -696 -288 R0
SYMATTR InstName C5
SYMATTR Value 0.22
SYMBOL res -376 -624 R270
SYMATTR InstName R4
SYMATTR Value 2.5m
SYMBOL res -440 -640 R0
SYMATTR InstName R5
SYMATTR Value 1K
SYMBOL res -264 -640 R0
SYMATTR InstName R6
SYMATTR Value 1K
SYMBOL cap -360 -496 R270
SYMATTR InstName C6
SYMATTR Value 1
SYMBOL res -696 -640 R0
SYMATTR InstName R7
SYMATTR Value 84.5K
SYMBOL res -696 -512 R0
SYMATTR InstName R8
SYMATTR Value 15.4K
SYMBOL cap -136 -624 R0
SYMATTR InstName C7
SYMATTR Value 4.7
SYMBOL cap 120 -384 R0
SYMATTR InstName C8
SYMATTR Value 4.7
SYMBOL schottky -24 -384 R0
SYMATTR InstName D1
SYMATTR Value 1N5819
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap -24 -192 R0
SYMATTR InstName C9
SYMATTR Value 0.22
SYMBOL nmos 200 -288 R0
SYMATTR InstName Q1
SYMATTR Value RJK0305DPB
SYMBOL nmos 200 -96 R0
SYMATTR InstName Q2
SYMATTR Value RJK0301DPB
SYMBOL ind 312 -96 R270
SYMATTR InstName L1
SYMATTR Value 1.5
SYMATTR SpiceLine Rser=2m
SYMBOL res 472 -96 R270
SYMATTR InstName R9
SYMATTR Value 2.5m
SYMBOL res 616 144 R0
SYMATTR InstName R10
SYMATTR Value 47.5K
SYMBOL res 616 272 R0
SYMATTR InstName R11
SYMATTR Value 12.1K
SYMBOL polcap 696 -96 R0
SYMATTR Value 220
SYMATTR Value2 x2
SYMATTR InstName C10
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=6.3 Irms=3.2 Rser=0.012 Lser=0 mfg="KEMET" pn="T520V227M006ASE012" type="Tantalum"
SYMBOL LED 808 304 R0
SYMATTR InstName D2
SYMATTR Value PT-121-B
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL nmos 776 416 R0
SYMATTR InstName Q3
SYMATTR Value IRF6201
SYMBOL res -568 256 R90
SYMATTR InstName R12
SYMATTR Value 59K
SYMBOL voltage -824 -624 R0
SYMATTR InstName V1
SYMATTR Value 24
SYMBOL voltage -792 480 R0
SYMATTR InstName V2
SYMATTR Value PULSE(0 2 .1m 10n 10n 20u 50u)
SYMBOL LT3763 -280 32 R0
SYMATTR InstName U1