* Z:\home\khalils\Downloads\files\data\raw_asc\LT4430.asc
* Generated by LTspice 26.0.1 for Windows.
* Library below included based on ModelFile attribute of instance XU3 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LT4430.asy)
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LTC3803.asy)
* Library below included based on ModelFile attribute of instance XU2 (C:\users\khalils\AppData\Local\LTspice\lib\sym\Optos\MOC207.asy)
D1 N001 OUT MBRS1100
R1 IN N002 399
V1 IN 0 13
R4 N007 N006 5.1K
R6 N010 0 10K
D2 N005 N014 1N4148
C4 N013 N012 .001
C2 OUT 0 100 Rser=0.1
R2 N008 0 1000
L1 0 N001 200 Rser=0.344
XU1 N005 0 N008 N006 N002 N004 LTC3803 ;pnba Ith/Run)GND)FB)Sense)Vcc)Ngate
K1 L1 L2 1
R3 N007 0 0.2
R10 N014 N017 4.99K
R8 N009 N015 3K
R5 OUT N010 73.2K
V2 N017 0 5
L2 IN N003 200 Rser=0.344
C5 N007 0 .1
Rload OUT 0 100
R9 N010 N013 200K
C3 N011 0 .05
XU2 N015 0 N014 0 N016 MOC205 Igain=2.44m ;pnba A)K)C)E)B
XU3 OUT 0 N011 N010 N012 N009 LT4430 ;pnba Vin)GND)OC)FB)Comp)OPTO
R7 N016 0 475K
C1 N002 0 4.7
MQ1 N003 N004 N007 N007 FDS6680A
.model D D
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.dio
.model NMOS NMOS
.model PMOS PMOS
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.mos
.tran 7m startup
.lib LT4430.sub
.lib LTC3803.sub
.lib MOC205.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 3476 1348
WIRE 528 0 256 0
WIRE 896 0 528 0
WIRE 1088 0 960 0
WIRE 1312 0 1152 0
WIRE 1552 0 1312 0
WIRE 1648 0 1552 0
WIRE 1728 0 1648 0
WIRE 256 16 256 0
WIRE 528 16 528 0
WIRE 896 16 896 0
WIRE 960 16 960 0
WIRE 1552 16 1552 0
WIRE 1728 16 1728 0
WIRE 256 112 256 96
WIRE 528 112 528 96
WIRE 528 112 320 112
WIRE 896 112 896 96
WIRE 960 112 960 96
WIRE 1552 112 1552 80
WIRE 1728 112 1728 96
WIRE 320 128 320 112
WIRE 528 144 528 112
WIRE 1648 144 1648 0
WIRE 848 192 656 192
WIRE 320 208 320 192
WIRE 400 256 336 256
WIRE 672 256 656 256
WIRE 816 256 752 256
WIRE 896 256 896 208
WIRE 896 256 816 256
WIRE 816 272 816 256
WIRE 896 272 896 256
WIRE 1312 304 1312 0
WIRE 704 320 656 320
WIRE 336 336 336 256
WIRE 704 336 704 320
WIRE 816 368 816 336
WIRE 896 368 896 352
WIRE 1184 368 1008 368
WIRE 1648 368 1648 224
WIRE 1648 368 1440 368
WIRE 528 384 528 368
WIRE 1008 400 1008 368
WIRE 704 432 704 416
WIRE 1104 480 1088 480
WIRE 1184 480 1168 480
WIRE 1456 480 1440 480
WIRE 1536 480 1520 480
WIRE 1648 480 1648 368
WIRE 1648 480 1616 480
WIRE 1648 496 1648 480
WIRE 336 512 336 400
WIRE 656 512 336 512
WIRE 1008 512 1008 480
WIRE 1008 512 848 512
WIRE 336 528 336 512
WIRE 1312 560 1312 544
WIRE 656 576 640 576
WIRE 560 608 544 608
WIRE 656 608 640 608
WIRE 880 608 848 608
WIRE 336 624 336 608
WIRE 336 720 336 704
SYMBOL cap 304 128 R0
SYMATTR InstName C1
SYMATTR Value 4.7
SYMBOL ind2 976 112 R180
WINDOW 0 -5 76 Right 2
WINDOW 3 -1 45 Right 2
SYMATTR InstName L1
SYMATTR Value 200
SYMATTR Type ind
SYMATTR SpiceLine Rser=0.344
SYMBOL res 1712 0 R0
SYMATTR InstName Rload
SYMATTR Value 100
SYMBOL PowerProducts\\LTC3803 528 256 R0
SYMATTR InstName U1
SYMBOL nmos 848 112 R0
WINDOW 0 1 43 Right 2
WINDOW 3 37 104 Right 2
SYMATTR InstName Q1
SYMATTR Value FDS6680A
SYMBOL res 512 0 R0
SYMATTR InstName R1
SYMATTR Value 399
SYMBOL ind2 880 0 R0
WINDOW 0 -4 34 Right 2
WINDOW 3 -1 70 Right 2
SYMATTR InstName L2
SYMATTR Value 200
SYMATTR Type ind
SYMATTR SpiceLine Rser=0.344
SYMBOL res 992 384 R0
SYMATTR InstName R8
SYMATTR Value 3K
SYMBOL voltage 256 0 R0
WINDOW 3 30 87 Left 2
SYMATTR Value 13
SYMATTR InstName V1
SYMBOL PowerProducts\\LT4430 1312 416 R0
WINDOW 0 17 -131 Left 2
SYMATTR InstName U3
SYMBOL res 1632 128 R0
SYMATTR InstName R5
SYMATTR Value 73.2K
SYMBOL diode 320 336 R0
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL res 880 256 R0
SYMATTR InstName R3
SYMATTR Value 0.2
SYMBOL schottky 1088 16 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS1100
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL voltage 336 608 R0
WINDOW 123 0 0 Left 2
WINDOW 3 41 60 Left 2
SYMATTR Value 5
SYMATTR InstName V2
SYMBOL Optos\\MOC207 752 576 M0
SYMATTR InstName U2
SYMBOL res 768 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 5.1K
SYMBOL cap 800 272 R0
SYMATTR InstName C5
SYMATTR Value .1
SYMBOL cap 1168 464 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value .05
SYMBOL cap 1520 464 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value .001
SYMBOL res 1632 464 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 200K
SYMBOL res 656 592 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 475K
SYMBOL res 1632 480 R0
SYMATTR InstName R6
SYMATTR Value 10K
SYMBOL res 720 320 M0
WINDOW 0 -9 46 Right 2
WINDOW 3 -6 74 Right 2
SYMATTR InstName R2
SYMATTR Value 1000
SYMBOL res 320 512 R0
SYMATTR InstName R10
SYMATTR Value 4.99K
SYMBOL polcap 1536 16 R0
WINDOW 3 24 64 Left 2
SYMATTR Value 100
SYMATTR InstName C2
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine Rser=0.1
FLAG 528 384 0
FLAG 544 608 0
FLAG 256 112 0
FLAG 1728 112 0
FLAG 1552 112 0
FLAG 960 112 0
FLAG 1312 560 0
FLAG 1648 576 0
FLAG 1088 480 0
FLAG 880 608 0
FLAG 896 368 0
FLAG 816 368 0
FLAG 704 432 0
FLAG 320 208 0
FLAG 640 576 0
FLAG 336 720 0
FLAG 1728 0 OUT
FLAG 256 0 IN
TEXT 928 -8 Bottom 2 !K1 L1 L2 1
TEXT 1208 720 Left 2 !.tran 7m startup