* Z:\home\khalils\Downloads\files\data\raw_asc\LT3955.asc
* Generated by LTspice 26.0.1 for Windows.
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LT3955.asy)
V1 IN 0 PWL(0 0 .2m 24)
D4 N008 N011 LXK2-PW14 N=12
R10 N007 0 40.2K
XU1 N005 N015 NC_01 N013 N009 N003 N004 IN N001 N010 N010 N006 N008 N002 N014 N007 0 0 0 LT3955 ;pnba Vref)PWM)_Vmode)DIM/SS)Rt)EN/UVLO)INTVcc)Vin)SW)SYNC)PWMout)FB)ISN)ISP)Vc)CTRL)GND)PGND)GNDK
C2 N002 0 2.2 x5 Rser=10m
R9 IN N007 332K
R5 IN N003 332K
MQ2 N011 N010 0 0 IRF1310
R4 N002 N008 .5
C3 N014 0 4700p Rser=20K
C4 N013 0 .01
R7 N009 0 28.7K tol=1 pwr=0.1
L1 IN N001 22 Rser=10m Rpar=2K
C5 N015 0 47n
R2 N002 N006 1Meg
C1 N004 0 1
R3 N006 0 16.9K
R6 N003 0 100K
R8 N012 N013 124K
V2 N012 0 4
D1 N001 N002 MBRS360
.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 25m startup
.lib LT3955.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 1448 1332
WIRE -112 -112 -368 -112
WIRE -16 -112 -112 -112
WIRE 240 -112 -16 -112
WIRE 384 -112 240 -112
WIRE 544 -112 464 -112
WIRE 576 -112 544 -112
WIRE 672 -112 640 -112
WIRE 736 -112 672 -112
WIRE 864 -112 736 -112
WIRE -368 -96 -368 -112
WIRE -112 -96 -112 -112
WIRE 736 -96 736 -112
WIRE 240 -64 240 -112
WIRE 736 -16 736 -32
WIRE -368 0 -368 -16
WIRE -112 0 -112 -16
WIRE 64 0 -112 0
WIRE 432 0 416 0
WIRE 512 0 496 0
WIRE -112 16 -112 0
WIRE 672 32 672 -112
WIRE 544 64 544 -112
WIRE 544 64 416 64
WIRE -16 96 -16 -112
WIRE -112 112 -112 96
WIRE 864 112 864 -112
WIRE 864 112 784 112
WIRE 64 128 48 128
WIRE 672 128 672 112
WIRE 672 128 416 128
WIRE 864 128 864 112
WIRE 672 144 672 128
WIRE -128 192 -144 192
WIRE -16 192 -16 176
WIRE -16 192 -48 192
WIRE 64 192 -16 192
WIRE 560 192 416 192
WIRE 864 224 864 208
WIRE 864 224 800 224
WIRE 672 240 672 224
WIRE -32 256 -48 256
WIRE 64 256 48 256
WIRE 496 256 416 256
WIRE 864 256 864 224
WIRE 560 272 560 192
WIRE 784 272 784 112
WIRE 784 272 560 272
WIRE 496 288 496 256
WIRE 800 288 800 224
WIRE 800 288 496 288
WIRE 64 320 -80 320
WIRE 448 320 416 320
WIRE 864 368 864 320
WIRE -256 384 -320 384
WIRE -144 384 -176 384
WIRE 64 384 -144 384
WIRE 464 384 416 384
WIRE 544 384 528 384
WIRE -320 400 -320 384
WIRE -144 400 -144 384
WIRE -32 448 -48 448
WIRE 64 448 32 448
WIRE 448 448 416 448
WIRE 816 448 448 448
WIRE -144 480 -144 464
WIRE 864 480 864 464
WIRE -320 496 -320 480
WIRE 192 528 192 512
WIRE 288 528 288 512
WIRE -80 560 -80 320
WIRE 448 560 448 448
WIRE 448 560 -80 560
SYMBOL voltage -368 -112 R0
WINDOW 123 24 138 Left 2
WINDOW 39 24 117 Left 2
SYMATTR Value PWL(0 0 .2m 24)
SYMATTR InstName V1
SYMBOL res -272 400 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R8
SYMATTR Value 124K
SYMBOL res -128 -112 R0
SYMATTR InstName R5
SYMATTR Value 332K
SYMBOL res 656 16 R0
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMBOL voltage -320 384 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 4
SYMBOL res 656 128 R0
SYMATTR InstName R3
SYMATTR Value 16.9K
SYMBOL cap 32 432 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 47n
SYMBOL cap 432 16 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 1
SYMBOL nmos 816 368 R0
SYMATTR InstName Q2
SYMATTR Value IRF1310
SYMBOL res -32 80 R0
SYMATTR InstName R9
SYMATTR Value 332K
SYMBOL res 64 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 28.7K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL cap 720 -96 R0
WINDOW 123 28 59 Left 2
WINDOW 0 25 7 Left 2
WINDOW 3 35 33 Left 2
SYMATTR Value2 x5
SYMATTR InstName C2
SYMATTR Value 2.2
SYMATTR SpiceLine Rser=10m
SYMBOL schottky 576 -96 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS360
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -32 176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 40.2K
SYMBOL cap 464 368 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 53 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 4700p
SYMATTR SpiceLine Rser=20K
SYMBOL cap -160 400 R0
SYMATTR InstName C4
SYMATTR Value .01
SYMBOL PowerProducts\\LT3955 240 224 R0
SYMATTR InstName U1
SYMBOL res 848 112 R0
SYMATTR InstName R4
SYMATTR Value .5
SYMBOL ind 368 -96 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 22
SYMATTR SpiceLine Rser=10m Rpar=2K
SYMBOL res -128 0 R0
SYMATTR InstName R6
SYMATTR Value 100K
SYMBOL LED 848 256 R0
WINDOW 3 29 67 Left 2
WINDOW 123 23 95 Left 2
SYMATTR Value LXK2-PW14
SYMATTR Value2 N=12
SYMATTR InstName D4
SYMATTR Description Diode
SYMATTR Type diode
FLAG 512 0 0
FLAG 672 240 0
FLAG 736 -16 0
FLAG -368 0 0
FLAG -112 112 0
FLAG 544 384 0
FLAG -48 256 0
FLAG 192 528 0
FLAG -368 -112 IN
FLAG 864 480 0
FLAG -144 480 0
FLAG -48 448 0
FLAG -320 496 0
FLAG 288 528 0
FLAG -144 192 0
FLAG 448 320 0
TEXT 616 528 Left 2 !.tran 25m startup