* Z:\home\khalils\Downloads\files\data\raw_asc\LT3574.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\LT3574.asy)
L2 0 N001 2.6 Rpar=5K
C3 OUT 0 22
R7 N004 0 51.1K
R1 N007 0 10K
C4 0 N012 .01
R4 0 N008 6.04K
L1 IN N003 24 Rpar=5K
D2 N003 N002 1N4148
R6 IN N004 357K
C2 0 N011 4.7
R3 N003 N005 80.6K
R8 IN N002 2K
C1 N010 N009 .001
V1 IN 0 18
C5 IN N002 .22
XU1 0 MP_01 MP_02 N003 IN N011 N004 MP_03 MP_04 N012 N007 N010 N005 N008 N006 LT3574 ;pnba GND)))SW)Vin)Bias)_SHDN/UVLO)))SS)Rlim)Vc)Rfb)Rref)TC
Rload OUT 0 20
R2 N006 0 28.7K
R5 N009 0 59K
K1 L1 L2 1.
D1 N001 OUT MBRS340
.model D D
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.dio
.tran 2.5m startup
.lib LT3574.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 1380 680
WIRE 0 -112 -112 -112
WIRE 192 -112 0 -112
WIRE 240 -112 192 -112
WIRE 320 -112 240 -112
WIRE 496 -112 320 -112
WIRE 624 -112 544 -112
WIRE 752 -112 688 -112
WIRE 864 -112 752 -112
WIRE -112 -96 -112 -112
WIRE 240 -96 240 -112
WIRE 320 -96 320 -112
WIRE 496 -96 496 -112
WIRE 544 -96 544 -112
WIRE 864 -96 864 -112
WIRE 0 -80 0 -112
WIRE 752 -80 752 -112
WIRE -112 0 -112 -16
WIRE 240 0 240 -32
WIRE 320 0 320 -16
WIRE 320 0 240 0
WIRE 384 0 320 0
WIRE 496 0 496 -16
WIRE 496 0 448 0
WIRE 544 0 544 -16
WIRE 752 0 752 -16
WIRE 864 0 864 -16
WIRE 192 32 192 -112
WIRE -112 96 -160 96
WIRE 0 96 0 0
WIRE 0 96 -32 96
WIRE 32 96 0 96
WIRE 384 96 352 96
WIRE 496 96 496 0
WIRE 496 96 464 96
WIRE -64 176 -160 176
WIRE 32 176 16 176
WIRE 496 176 496 96
WIRE 496 176 352 176
WIRE -112 256 -160 256
WIRE 32 256 -32 256
WIRE 368 256 352 256
WIRE 464 256 448 256
WIRE -144 336 -160 336
WIRE -48 336 -64 336
WIRE 32 336 16 336
WIRE 368 336 352 336
WIRE 464 336 432 336
WIRE 128 416 128 400
WIRE 256 416 256 400
WIRE 128 496 128 480
SYMBOL res -16 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 51.1K
SYMBOL voltage -112 -112 R0
SYMATTR InstName V1
SYMATTR Value 18
SYMBOL cap 112 480 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C4
SYMATTR Value .01
SYMBOL res 848 -112 R0
SYMATTR InstName Rload
SYMATTR Value 20
SYMBOL res -16 -96 R0
SYMATTR InstName R6
SYMATTR Value 357K
SYMBOL res 304 -112 R0
SYMATTR InstName R8
SYMATTR Value 2K
SYMBOL cap 16 320 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value .001
SYMBOL res 32 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 28.7K
SYMBOL cap 432 320 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 4.7
SYMBOL cap 224 -96 R0
SYMATTR InstName C5
SYMATTR Value .22
SYMBOL schottky 624 -96 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS340
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL ind2 560 0 R180
WINDOW 0 3 79 Right 2
WINDOW 3 1 44 Right 2
SYMATTR InstName L2
SYMATTR Value 2.6
SYMATTR Type ind
SYMATTR SpiceLine Rpar=5K
SYMBOL diode 448 16 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL res -16 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL res 464 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 6.04K
SYMBOL cap 736 -80 R0
SYMATTR InstName C3
SYMATTR Value 22
SYMBOL ind2 480 -112 R0
WINDOW 0 0 40 Right 2
WINDOW 3 0 72 Right 2
SYMATTR InstName L1
SYMATTR Value 24
SYMATTR Type ind
SYMATTR SpiceLine Rpar=5K
SYMBOL PowerProducts\\LT3574 192 208 R0
SYMATTR InstName U1
SYMBOL res 480 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 80.6K
SYMBOL res -48 320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 59K
FLAG 256 416 0
FLAG 128 496 0
FLAG -160 336 0
FLAG -160 176 0
FLAG -160 256 0
FLAG -112 0 0
FLAG 464 336 0
FLAG 464 256 0
FLAG 752 0 0
FLAG 544 0 0
FLAG 864 0 0
FLAG -112 -112 IN
FLAG 864 -112 OUT
FLAG -160 96 0
TEXT 520 -112 Bottom 2 !K1 L1 L2 1.
TEXT 568 208 Left 2 !.tran 2.5m startup