* SPICE netlist
MQ1 N006 N007 N012 N012 IRFH5020
R1 N013 0 10K
R2 N008 0 8.2K
R3 OUT N008 25K
L1 N006 IN 35 Rpar=3K
D1 N003 OUT MBRS360
R4 N010 N009 75K
C2 N009 N008 3.9n
V1 IN 0 25
R5 N004 0 10K
R6 IN N004 105K
R7 N012 0 0.6
R8 IN N001 1K
C6 N001 0 1
D2 N002 N001 ES1D
L2 N003 0 1.6 Rpar=1K
Rload OUT 0 3.333
C1 OUT 0 68
L3 N002 0 35 Rpar=1K
C4 IN 0 1
C3 N005 0 0.22
R9 N013 N014 750
C5 N014 0 0.1
C7 N010 N008 100p
R10 N012 N011 1K
C8 N011 0 0.1n
XU1 N010 N008 NC_01 N013 0 N011 N007 N005 N004 N001 MAX17500 ;pnba COMP)FB)UFLG)RT)GND)CS)NDRV)VCC)UVLO/EN)IN
.tran 30m startup
K1 L1 L2 L3 1

* LTspice schematic (.asc)
Version 4
SHEET 1 1408 832
WIRE 128 -400 -240 -400
WIRE 272 -400 192 -400
WIRE 272 -384 272 -400
WIRE -640 -352 -704 -352
WIRE -608 -352 -640 -352
WIRE -544 -352 -608 -352
WIRE 32 -352 -544 -352
WIRE 112 -352 32 -352
WIRE -704 -336 -704 -352
WIRE 32 -336 32 -352
WIRE -608 -320 -608 -352
WIRE 272 -288 272 -304
WIRE 272 -288 160 -288
WIRE 112 -272 112 -352
WIRE 272 -272 112 -272
WIRE -544 -256 -544 -352
WIRE 432 -256 320 -256
WIRE 560 -256 496 -256
WIRE 624 -256 560 -256
WIRE 672 -256 624 -256
WIRE 704 -256 672 -256
WIRE -704 -240 -704 -256
WIRE -608 -240 -608 -256
WIRE -240 -240 -240 -400
WIRE 32 -240 32 -256
WIRE 32 -240 -240 -240
WIRE 272 -240 272 -272
WIRE 320 -240 320 -256
WIRE 560 -240 560 -256
WIRE 704 -240 704 -256
WIRE 32 -224 32 -240
WIRE -240 -208 -240 -240
WIRE -544 -144 -544 -176
WIRE -400 -144 -544 -144
WIRE -32 -144 -80 -144
WIRE 32 -144 32 -160
WIRE 160 -144 160 -288
WIRE 160 -144 32 -144
WIRE -544 -128 -544 -144
WIRE 320 -128 320 -160
WIRE 560 -128 560 -176
WIRE 560 -128 320 -128
WIRE 160 -112 160 -144
WIRE 560 -96 560 -128
WIRE 704 -96 704 -160
WIRE 272 -80 272 -160
WIRE -32 -64 -32 -80
WIRE -544 -32 -544 -48
WIRE 160 -32 -80 -32
WIRE 160 0 160 -32
WIRE 224 0 160 0
WIRE -608 32 -624 32
WIRE -528 32 -544 32
WIRE -432 32 -448 32
WIRE 624 48 624 -256
WIRE -624 80 -624 32
WIRE -624 80 -656 80
WIRE -432 80 -432 32
WIRE -400 80 -432 80
WIRE 112 80 -80 80
WIRE 160 80 112 80
WIRE 272 80 272 16
WIRE 272 80 240 80
WIRE 112 96 112 80
WIRE 272 96 272 80
WIRE -624 128 -624 80
WIRE -560 128 -624 128
WIRE -432 128 -432 80
WIRE -432 128 -496 128
WIRE 624 144 624 128
WIRE 624 144 576 144
WIRE 624 160 624 144
WIRE 112 176 112 160
WIRE -656 192 -656 80
WIRE -400 192 -656 192
WIRE -32 192 -80 192
WIRE 80 192 -32 192
WIRE 272 192 272 176
WIRE -32 208 -32 192
WIRE 80 208 80 192
WIRE 624 256 624 240
WIRE -240 288 -240 256
WIRE -32 304 -32 288
WIRE 80 304 80 288
WIRE 80 384 80 368
WIRE -656 416 -656 192
WIRE 576 416 576 144
WIRE 576 416 -656 416
FLAG -32 304 0
FLAG 624 256 0
FLAG -240 288 0
FLAG 704 -96 0
FLAG -704 -240 0
FLAG -32 -64 0
FLAG 672 -256 OUT
FLAG -640 -352 IN
FLAG -544 -32 0
FLAG 272 192 0
FLAG 560 -96 0
FLAG 160 -112 0
FLAG -608 -240 0
FLAG 80 384 0
FLAG 112 176 0
SYMBOL NMOS 224 -80 R0
SYMATTR InstName Q1
SYMATTR Value IRFH5020
SYMBOL RES -48 192 R0
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL res 608 144 R0
SYMATTR InstName R2
SYMATTR Value 8.2K
SYMBOL res 608 32 R0
SYMATTR InstName R3
SYMATTR Value 25K
SYMBOL ind2 256 -144 M180
SYMATTR InstName L1
SYMATTR Value 35
SYMATTR Type ind
SYMATTR SpiceLine Rpar=3K
SYMBOL schottky 432 -240 R270
SYMATTR InstName D1
SYMATTR Value MBRS360
SYMBOL res -432 16 R90
SYMATTR InstName R4
SYMATTR Value 75K
SYMBOL cap -544 16 R90
SYMATTR InstName C2
SYMATTR Value 3.9n
SYMBOL VOLTAGE -704 -352 R0
SYMATTR InstName V1
SYMATTR Value 25
SYMBOL res -560 -144 R0
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL res -560 -272 R0
SYMATTR InstName R6
SYMATTR Value 105K
SYMBOL res 256 80 R0
SYMATTR InstName R7
SYMATTR Value 0.6
SYMBOL res 16 -352 R0
SYMATTR InstName R8
SYMATTR Value 1K
SYMBOL cap 16 -224 R0
SYMATTR InstName C6
SYMATTR Value 1
SYMBOL diode 192 -416 R90
SYMATTR InstName D2
SYMATTR Value ES1D
SYMBOL ind2 336 -256 M0
SYMATTR InstName L2
SYMATTR Value 1.6
SYMATTR Type ind
SYMATTR SpiceLine Rpar=1K
SYMBOL res 688 -256 R0
SYMATTR InstName Rload
SYMATTR Value 3.333
SYMBOL polcap 544 -240 R0
SYMATTR InstName C1
SYMATTR Value 68
SYMBOL ind2 256 -400 R0
SYMATTR InstName L3
SYMATTR Value 35
SYMATTR Type ind
SYMATTR SpiceLine Rpar=1K
SYMBOL cap -624 -320 R0
SYMATTR InstName C4
SYMATTR Value 1
SYMBOL cap -48 -144 R0
SYMATTR InstName C3
SYMATTR Value 0.22
SYMBOL res 64 192 R0
SYMATTR InstName R9
SYMATTR Value 750
SYMBOL cap 64 304 R0
SYMATTR InstName C5
SYMATTR Value 0.1
SYMBOL cap -496 112 R90
SYMATTR InstName C7
SYMATTR Value 100p
SYMBOL res 256 64 R90
SYMATTR InstName R10
SYMATTR Value 1K
SYMBOL cap 96 96 R0
SYMATTR InstName C8
SYMATTR Value 0.1n
SYMBOL MAX17500 -240 0 R0
SYMATTR InstName U1