* Z:\home\khalils\Downloads\files\data\raw_asc\LT1725.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\LT1725.asy)
L2 N002 0 5 Rpar=5K
Rload OUT 0 10
R6 N001 N003 10K
C3 N008 0 .1
L1 N007 IN 20 Rpar=5K
V1 IN 0 16
R1 N013 0 .1
C4 OUT 0 50 Rser=25m
D1 N002 OUT 1N5817
MQ1 N007 N011 N013 N013 Si4410DY
R4 N014 0 100K
XU1 0 N013 N006 N005 N008 N015 N004 N003 N009 IN 0 N010 N012 N014 IN N011 LT1725 ;pnba PGND)Isense)SFST)Rocmp)Rcmpc)OSCAP)Vc)FB)3Vout)UVLO)SGND)MinEnab)EnDly)Ton)Vcc)GATE
R2 N010 0 100K
C2 N004 0 1n
R5 N005 0 100K
R3 N012 0 100K
C1 N015 0 100p
L3 N001 0 5 Rpar=5K
R7 N003 0 3K
K1 L1 L2 L3 1
.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 1.2m startup
.lib LT1725.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 1432 700
WIRE 720 -224 -208 -224
WIRE 720 -208 720 -224
WIRE 720 -112 720 -128
WIRE 272 -80 32 -80
WIRE 432 -80 272 -80
WIRE 720 -80 432 -80
WIRE -208 -64 -208 -224
WIRE 32 -64 32 -80
WIRE 848 -48 768 -48
WIRE 976 -48 912 -48
WIRE 1088 -48 976 -48
WIRE 976 -32 976 -48
WIRE 1088 -32 1088 -48
WIRE 720 -16 720 -80
WIRE 768 -16 768 -48
WIRE 272 0 272 -80
WIRE 432 0 432 -80
WIRE 32 32 32 16
WIRE -208 64 -208 16
WIRE 160 64 -208 64
WIRE 560 64 544 64
WIRE 640 64 624 64
WIRE 976 64 976 32
WIRE 1088 64 1088 48
WIRE -208 96 -208 64
WIRE 768 96 768 64
WIRE 64 128 -16 128
WIRE 160 128 144 128
WIRE 576 128 544 128
WIRE 720 176 720 64
WIRE 0 192 -16 192
WIRE 160 192 64 192
WIRE 576 192 544 192
WIRE -208 208 -208 176
WIRE 64 256 -16 256
WIRE 160 256 144 256
WIRE 672 256 544 256
WIRE 0 320 -16 320
WIRE 160 320 80 320
WIRE 720 320 720 272
WIRE 720 320 544 320
WIRE 720 352 720 320
WIRE 64 384 -16 384
WIRE 160 384 144 384
WIRE 560 384 544 384
WIRE 640 384 624 384
WIRE 720 448 720 432
WIRE 272 464 272 448
WIRE 432 464 432 448
SYMBOL res -224 80 R0
SYMATTR InstName R7
SYMATTR Value 3K
SYMBOL cap 64 176 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value .1
SYMBOL res 160 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL schottky 848 -32 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N5817
SYMBOL res -224 -80 R0
SYMATTR InstName R6
SYMATTR Value 10K
SYMBOL res 160 368 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 100K
SYMBOL cap 560 400 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 100p
SYMBOL res 96 304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 100K
SYMBOL ind2 704 80 M180
WINDOW 0 -6 77 Right 2
WINDOW 3 -6 34 Right 2
SYMATTR InstName L1
SYMATTR Value 20
SYMATTR SpiceLine Rpar=5K
SYMBOL POWERPRODUCTS\\LT1725 352 224 R0
WINDOW 0 8 -240 Center 2
WINDOW 3 8 240 Center 2
SYMATTR InstName U1
SYMBOL VOLTAGE 32 -80 R0
SYMATTR InstName V1
SYMATTR Value 16
SYMBOL cap 560 80 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value 1n
SYMBOL res 1072 -48 R0
SYMATTR InstName Rload
SYMATTR Value 10
SYMBOL RES 704 336 R0
SYMATTR InstName R1
SYMATTR Value .1
SYMBOL cap 960 -32 R0
SYMATTR SpiceLine Rser=25m
SYMATTR InstName C4
SYMATTR Value 50
SYMBOL res 160 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 100K
SYMBOL ind2 704 -224 R0
WINDOW 0 -3 43 Right 2
WINDOW 3 -5 84 Right 2
SYMATTR InstName L3
SYMATTR Value 5
SYMATTR SpiceLine Rpar=5K
SYMBOL NMOS 672 176 R0
SYMATTR InstName Q1
SYMATTR Value Si4410DY
SYMBOL ind2 784 -32 M0
WINDOW 0 -7 35 Right 2
WINDOW 3 -7 76 Right 2
SYMATTR InstName L2
SYMATTR Value 5
SYMATTR SpiceLine Rpar=5K
FLAG 272 464 0
FLAG 432 464 0
FLAG 720 448 0
FLAG 640 64 0
FLAG -16 256 0
FLAG -16 320 0
FLAG -16 384 0
FLAG -16 192 0
FLAG -16 128 0
FLAG 640 384 0
FLAG -208 208 0
FLAG 768 96 0
FLAG 976 64 0
FLAG 1088 64 0
FLAG 720 -112 0
FLAG 32 32 0
FLAG 1088 -48 OUT
FLAG 32 -80 IN
TEXT 776 -144 Left 2 !K1 L1 L2 L3 1
TEXT 856 328 Left 2 !.tran 1.2m startup