* Z:\home\khalils\Downloads\files\data\raw_asc\LT3518.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\LT3518.asy)
C2 N009 0 .005
MQ1 N002 N004 N001 N001 FDS4685
XU1 N005 N005 N007 N008 0 N010 N007 N007 N009 0 N007 N001 IN N004 N006 MP_01 0 LT3518 ;pnba Vin)_SHDN)Vref)Rt)SYNC)SS)PWM)CTRL)Vc)FB)TGEN)ISN)ISP)TG)SW))GND
V1 IN 0 25
C3 N010 0 .005
R1 IN N001 68m
C1 IN N003 4.7
R2 N008 0 16.9K
D1 N002 N003 LXK2-PW14 N=3
D2 N006 IN MBRS360
L1 N003 N006 15 Rpar=2K
V2 N005 0 3.3
.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 1m startup
.lib LT3518.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 1476 1108
WIRE 624 -80 128 -80
WIRE 704 -80 624 -80
WIRE 624 -64 624 -80
WIRE 128 0 128 -80
WIRE 128 0 -80 0
WIRE 144 0 128 0
WIRE 240 0 224 0
WIRE 336 0 240 0
WIRE 496 0 432 0
WIRE 624 0 560 0
WIRE 704 0 704 -80
WIRE -80 16 -80 0
WIRE 624 32 624 0
WIRE 128 80 128 0
WIRE 240 80 240 0
WIRE 352 80 352 48
WIRE -80 112 -80 96
WIRE 48 144 -48 144
WIRE 64 144 48 144
WIRE 624 144 624 112
WIRE 624 144 416 144
WIRE 704 144 704 64
WIRE 704 144 624 144
WIRE -48 160 -48 144
WIRE 48 208 48 144
WIRE 64 208 48 208
WIRE 448 208 416 208
WIRE -48 256 -48 240
WIRE 64 272 48 272
WIRE 480 272 416 272
WIRE 576 272 560 272
WIRE 48 336 48 272
WIRE 64 336 48 336
WIRE 432 336 416 336
WIRE 576 336 496 336
WIRE 48 400 48 336
WIRE 64 400 48 400
WIRE 496 400 416 400
WIRE 576 400 560 400
WIRE 48 464 48 400
WIRE 64 464 48 464
WIRE 448 464 416 464
WIRE 240 528 240 512
SYMBOL res 128 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 68m
SYMBOL schottky 688 64 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value MBRS360
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 496 16 R270
WINDOW 3 -7 34 VBottom 2
WINDOW 123 -30 35 VBottom 2
WINDOW 0 70 38 VTop 2
SYMATTR Value LXK2-PW14
SYMATTR Value2 N=3
SYMATTR InstName D1
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL voltage -80 0 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 25
SYMBOL PowerProducts\\LT3518 240 304 R0
SYMATTR InstName U1
SYMBOL cap 496 416 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C3
SYMATTR Value .005
SYMBOL ind 608 16 R0
SYMATTR InstName L1
SYMATTR Value 15
SYMATTR SpiceLine Rpar=2K
SYMBOL cap 608 -64 R0
WINDOW 3 28 55 Left 2
SYMATTR Value 4.7
SYMATTR InstName C1
SYMBOL cap 432 352 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value .005
SYMBOL res 464 256 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 16.9K
SYMBOL voltage -48 144 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 3.3
SYMBOL pmos 432 48 M270
WINDOW 0 66 53 VLeft 2
WINDOW 3 -12 75 VLeft 2
SYMATTR InstName Q1
SYMATTR Value FDS4685
FLAG -80 112 0
FLAG 576 272 0
FLAG 240 528 0
FLAG -80 0 IN
FLAG -48 256 0
FLAG 576 336 0
FLAG 576 400 0
FLAG 448 464 0
FLAG 448 208 0
TEXT 496 488 Left 2 !.tran 1m startup