* Z:\home\khalils\Downloads\files\data\raw_asc\LT1944-1.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\LT1944-1.asy)
C4 N001 N002 .1
D1 N002 OUT1 1N5819
Rload2 OUT2 0 125
R2 N004 0 178K
V1 IN 0 3.5
XU1 N004 IN 0 IN N005 N003 0 IN 0 N002 LT1944-1 ;pnba FB1)_SHDN1)GND)_SHDN2)FB2)SW2)PGND2)Vin)PGND1)SW1
L2 IN N002 22 Rpar=2K
R1 OUT1 N004 2Meg
D2 N003 OUT2 MBRS360
R4 N005 0 324K
D3 OUT3 N001 1N5819
L1 IN N003 22 Rpar=10K
C2 OUT1 0 1
R3 OUT2 N005 1Meg
D4 N001 OUT2 1N5819
C3 OUT3 0 1
Rload1 OUT1 0 6K
Rload3 OUT3 0 10K
C1 OUT2 0 4.7
.model D D
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.dio
.tran 4m startup
.lib LT1944-1.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 2732 1860
WIRE 1360 1120 1216 1120
WIRE 1456 1120 1360 1120
WIRE 1616 1120 1520 1120
WIRE 1680 1120 1616 1120
WIRE 2416 1120 1744 1120
WIRE 1216 1136 1216 1120
WIRE 1360 1136 1360 1120
WIRE 1616 1168 1616 1120
WIRE 2032 1168 1936 1168
WIRE 2032 1184 2032 1168
WIRE 1216 1232 1216 1216
WIRE 1360 1232 1360 1200
WIRE 2032 1280 2032 1264
WIRE 1360 1312 1232 1312
WIRE 1456 1312 1360 1312
WIRE 1504 1312 1456 1312
WIRE 1616 1312 1616 1232
WIRE 1616 1312 1568 1312
WIRE 1632 1312 1616 1312
WIRE 1728 1312 1712 1312
WIRE 1936 1312 1936 1168
WIRE 1936 1312 1728 1312
WIRE 2144 1312 1936 1312
WIRE 2160 1312 2144 1312
WIRE 2256 1312 2240 1312
WIRE 2304 1312 2256 1312
WIRE 2416 1312 2416 1120
WIRE 2416 1312 2368 1312
WIRE 2528 1312 2416 1312
WIRE 2624 1312 2528 1312
WIRE 1232 1328 1232 1312
WIRE 1360 1328 1360 1312
WIRE 2528 1328 2528 1312
WIRE 2624 1328 2624 1312
WIRE 1936 1360 1936 1312
WIRE 1456 1392 1456 1312
WIRE 2416 1392 2416 1312
WIRE 1232 1424 1232 1408
WIRE 1360 1424 1360 1392
WIRE 1728 1424 1728 1312
WIRE 1760 1424 1728 1424
WIRE 2144 1424 2144 1312
WIRE 2144 1424 2112 1424
WIRE 2528 1424 2528 1392
WIRE 2624 1424 2624 1408
WIRE 1616 1488 1616 1312
WIRE 1760 1488 1616 1488
WIRE 2256 1488 2256 1312
WIRE 2256 1488 2112 1488
WIRE 1456 1552 1456 1472
WIRE 1760 1552 1456 1552
WIRE 2416 1552 2416 1472
WIRE 2416 1552 2112 1552
WIRE 1456 1568 1456 1552
WIRE 2416 1568 2416 1552
WIRE 1824 1632 1824 1616
WIRE 1936 1632 1936 1616
WIRE 2048 1632 2048 1616
WIRE 1456 1664 1456 1648
WIRE 2416 1664 2416 1648
SYMBOL cap 1600 1168 R0
SYMATTR InstName C4
SYMATTR Value .1
SYMBOL schottky 1680 1104 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D4
SYMATTR Value 1N5819
SYMBOL ind 2144 1328 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 22
SYMATTR SpiceLine Rpar=10K
SYMBOL res 2608 1312 R0
SYMATTR InstName Rload2
SYMATTR Value 125
SYMBOL RES 1440 1376 R0
SYMATTR InstName R1
SYMATTR Value 2Meg
SYMBOL VOLTAGE 2032 1168 R0
SYMATTR InstName V1
SYMATTR Value 3.5
SYMBOL cap 1344 1136 R0
SYMATTR InstName C3
SYMATTR Value 1
SYMBOL schottky 1456 1104 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D3
SYMATTR Value 1N5819
SYMBOL schottky 2304 1296 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value MBRS360
SYMBOL res 1200 1120 R0
SYMATTR InstName Rload3
SYMATTR Value 10K
SYMBOL res 2400 1376 R0
SYMATTR InstName R3
SYMATTR Value 1Meg
SYMBOL res 1216 1312 R0
SYMATTR InstName Rload1
SYMATTR Value 6K
SYMBOL POWERPRODUCTS\\LT1944-1 1936 1488 R0
SYMATTR InstName U1
SYMBOL cap 2512 1328 R0
SYMATTR InstName C1
SYMATTR Value 4.7
SYMBOL ind 1728 1328 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value 22
SYMATTR SpiceLine Rpar=2K
SYMBOL res 1440 1552 R0
SYMATTR InstName R2
SYMATTR Value 178K
SYMBOL schottky 1568 1296 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D1
SYMATTR Value 1N5819
SYMBOL res 2400 1552 R0
SYMATTR InstName R4
SYMATTR Value 324K
SYMBOL cap 1344 1328 R0
SYMATTR InstName C2
SYMATTR Value 1
FLAG 1456 1664 0
FLAG 1824 1632 0
FLAG 1936 1632 0
FLAG 2048 1632 0
FLAG 2416 1664 0
FLAG 1360 1424 0
FLAG 2528 1424 0
FLAG 2624 1424 0
FLAG 1232 1424 0
FLAG 2032 1280 0
FLAG 1360 1232 0
FLAG 1216 1232 0
FLAG 1232 1312 OUT1
FLAG 2624 1312 OUT2
FLAG 2032 1168 IN
FLAG 1216 1120 OUT3
TEXT 2496 1512 Left 2 !.tran 4m startup