* Z:\home\khalils\Downloads\files\data\raw_asc\LT1619.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\LT1619.asy)
C1 N005 0 150p
R3 OUT N002 37.4K
R1 N006 0 14m
R4 N005 N004 25K
XU1 IN N002 N005 0 N006 N003 OUT IN LT1619 ;pnba _SHDN)FB)VC)GND)Sense)Gate)DRV)Vin
C3 OUT 0 .1
D1 N001 OUT MBR735
Rload OUT 0 3
R2 N002 0 12.4K
V1 IN 0 3.3
C2 N004 0 .015
L1 IN N001 12
MQ1 N001 N003 N006 N006 Si9804DY
C5 OUT 0 440 Rser=0.065
.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 4m startup
.lib LT1619.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 2528 1112
WIRE 1184 592 1088 592
WIRE 1376 592 1184 592
WIRE 1504 592 1376 592
WIRE 1696 592 1584 592
WIRE 1088 608 1088 592
WIRE 1376 656 1376 592
WIRE 1584 656 1552 656
WIRE 1888 656 1584 656
WIRE 1584 672 1584 656
WIRE 1088 704 1088 688
WIRE 1696 704 1696 592
WIRE 1776 704 1696 704
WIRE 1888 704 1888 656
WIRE 1888 704 1840 704
WIRE 2000 704 1888 704
WIRE 2112 704 2000 704
WIRE 1184 720 1184 592
WIRE 1216 720 1184 720
WIRE 1552 720 1552 656
WIRE 1552 720 1536 720
WIRE 1696 720 1696 704
WIRE 2000 720 2000 704
WIRE 2112 720 2112 704
WIRE 1888 736 1888 704
WIRE 1584 752 1584 736
WIRE 1216 800 960 800
WIRE 1648 800 1536 800
WIRE 2000 816 2000 784
WIRE 2112 816 2112 800
WIRE 1888 832 1888 816
WIRE 1888 832 1824 832
WIRE 1888 848 1888 832
WIRE 1056 880 992 880
WIRE 1152 880 1136 880
WIRE 1216 880 1152 880
WIRE 1696 880 1696 816
WIRE 1696 880 1536 880
WIRE 992 896 992 880
WIRE 1152 896 1152 880
WIRE 1696 896 1696 880
WIRE 1888 944 1888 928
WIRE 1376 960 1376 944
WIRE 992 992 992 960
WIRE 1152 992 1152 960
WIRE 1696 992 1696 976
WIRE 960 1040 960 800
WIRE 1824 1040 1824 832
WIRE 1824 1040 960 1040
SYMBOL IND 1488 608 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 12
SYMBOL RES 1680 880 R0
SYMATTR InstName R1
SYMATTR Value 14m
SYMBOL res 1872 720 R0
SYMATTR InstName R3
SYMATTR Value 37.4K
SYMBOL res 2096 704 R0
SYMATTR InstName Rload
SYMATTR Value 3
SYMBOL POWERPRODUCTS\\LT1619 1376 800 R0
SYMATTR InstName U1
SYMBOL cap 976 896 R0
SYMATTR InstName C2
SYMATTR Value .015
SYMBOL res 1872 832 R0
SYMATTR InstName R2
SYMATTR Value 12.4K
SYMBOL NMOS 1648 720 R0
WINDOW 0 60 20 Left 2
WINDOW 3 60 84 Left 2
SYMATTR InstName Q1
SYMATTR Value Si9804DY
SYMBOL res 1152 864 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 25K
SYMBOL polcap 1984 720 R0
SYMATTR InstName C5
SYMATTR Value 440
SYMATTR SpiceLine Rser=0.065
SYMBOL cap 1136 896 R0
SYMATTR InstName C1
SYMATTR Value 150p
SYMBOL VOLTAGE 1088 592 R0
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL schottky 1776 720 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBR735
SYMBOL cap 1568 672 R0
SYMATTR InstName C3
SYMATTR Value .1
FLAG 2112 704 OUT
FLAG 1088 704 0
FLAG 2000 816 0
FLAG 2112 816 0
FLAG 1888 944 0
FLAG 992 992 0
FLAG 1376 960 0
FLAG 1696 992 0
FLAG 1584 752 0
FLAG 1088 592 IN
FLAG 1152 992 0
TEXT 1880 992 Left 2 !.tran 4m startup