* Z:\home\khalils\Downloads\files\data\raw_asc\LT3640.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\LT3640.asy)
Rload1 OUT1 0 4
C2 N012 0 .001
D1 N004 N003 1N5371B
C7 OUT2 0 22 Rser=5m
R4 OUT2 N010 100K
R3 N005 0 49.9K
C5 OUT1 0 22 Rser=5m
Rload2 OUT2 0 2.25
C6 N001 N002 .22
V1 IN 0 24
R1 N009 0 32.4K
L1 N003 OUT1 3.3 Rser=5m
XU1 MP_01 N011 N005 N009 NC_02 NC_03 NC_04 N006 N007 0 NC_05 0 MP_06 MP_07 N004 N003 N002 N001 IN MP_08 OUT1 N008 MP_09 OUT1 N012 N010 NC_10 IN LT3640 ;pnba )SS1)FB1)Rt)_RST2)_RST1)_WDO)CWDT)CPOR)_WDE)WDI)GND)))DA)SW1)SW)BST)Vin))Vin2)SW2))EN2)SS2)FB2)_PGOOD)EN/UVLO
R2 OUT1 N005 80.6K
C3 N007 0 15p
D2 OUT1 N001 CMDSH2-3
C1 N011 0 .001
L2 N008 OUT2 3.3 Rser=5m
R5 N010 0 49.9K
C4 N006 0 15p
.model D D
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.dio
.tran 1.2m startup
.lib LT3640.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 1908 804
WIRE 1056 -288 768 -288
WIRE 1184 -288 1056 -288
WIRE 768 -272 768 -288
WIRE 1056 -272 1056 -288
WIRE 1184 -272 1184 -288
WIRE 1360 -208 1312 -208
WIRE 1440 -208 1360 -208
WIRE 1552 -208 1504 -208
WIRE 1360 -192 1360 -208
WIRE 768 -176 768 -192
WIRE 928 -112 896 -112
WIRE 1360 -112 1360 -128
WIRE 1360 -112 1312 -112
WIRE 1360 -16 1312 -16
WIRE 1424 -16 1360 -16
WIRE 1552 -16 1552 -208
WIRE 1552 -16 1504 -16
WIRE 1664 -16 1552 -16
WIRE 1760 -16 1664 -16
WIRE 1360 0 1360 -16
WIRE 1664 0 1664 -16
WIRE 1760 0 1760 -16
WIRE 1552 48 1552 -16
WIRE 1552 48 1504 48
WIRE 1552 64 1552 48
WIRE 1360 80 1360 64
WIRE 1360 80 1312 80
WIRE 1664 96 1664 64
WIRE 1760 96 1760 80
WIRE 1552 176 1552 144
WIRE 1552 176 1312 176
WIRE 1552 192 1552 176
WIRE 1344 272 1312 272
WIRE 1504 272 1504 48
WIRE 1504 272 1344 272
WIRE 1552 288 1552 272
WIRE 832 368 816 368
WIRE 928 368 896 368
WIRE 1344 368 1344 272
WIRE 1344 368 1312 368
WIRE 832 464 816 464
WIRE 928 464 896 464
WIRE 1360 464 1312 464
WIRE 1488 464 1440 464
WIRE 1616 464 1488 464
WIRE 1712 464 1616 464
WIRE 1616 480 1616 464
WIRE 1712 480 1712 464
WIRE 832 560 816 560
WIRE 928 560 912 560
WIRE 1488 560 1488 544
WIRE 1488 560 1312 560
WIRE 1488 576 1488 560
WIRE 1616 576 1616 544
WIRE 1712 576 1712 560
WIRE 1024 640 1024 624
WIRE 1216 640 1216 624
WIRE 1120 656 1120 624
WIRE 1488 672 1488 656
WIRE 1024 720 1024 704
WIRE 1216 720 1216 704
SYMBOL res 1744 -16 R0
SYMATTR InstName Rload1
SYMATTR Value 4
SYMBOL ind 1344 480 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value 3.3
SYMATTR SpiceLine Rser=5m
SYMBOL cap 1200 640 R0
SYMATTR InstName C2
SYMATTR Value .001
SYMBOL cap 1648 0 R0
SYMATTR InstName C5
SYMATTR Value 22
SYMATTR SpiceLine Rser=5m
SYMBOL cap 896 352 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 15p
SYMBOL PowerProducts\\LT3640 1120 176 R0
SYMATTR InstName U1
SYMBOL zener 1344 64 M180
WINDOW 0 26 66 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N5371B
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 896 448 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 15p
SYMBOL cap 1008 640 R0
SYMATTR InstName C1
SYMATTR Value .001
SYMBOL ind 1408 0 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 3.3
SYMATTR SpiceLine Rser=5m
SYMBOL res 1696 464 R0
SYMATTR InstName Rload2
SYMATTR Value 2.25
SYMBOL schottky 1504 -224 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 1536 48 R0
SYMATTR InstName R2
SYMATTR Value 80.6K
SYMBOL res 1472 560 R0
SYMATTR InstName R5
SYMATTR Value 49.9K
SYMBOL cap 1344 -192 R0
SYMATTR InstName C6
SYMATTR Value .22
SYMBOL res 1472 448 R0
SYMATTR InstName R4
SYMATTR Value 100K
SYMBOL res 928 544 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 32.4K
SYMBOL cap 1600 480 R0
SYMATTR InstName C7
SYMATTR Value 22
SYMATTR SpiceLine Rser=5m
SYMBOL res 1536 176 R0
SYMATTR InstName R3
SYMATTR Value 49.9K
SYMBOL voltage 768 -288 R0
SYMATTR InstName V1
SYMATTR Value 24
FLAG 1120 656 0
FLAG 1024 720 0
FLAG 1216 720 0
FLAG 768 -176 0
FLAG 896 -112 0
FLAG 816 560 0
FLAG 816 464 0
FLAG 816 368 0
FLAG 1552 288 0
FLAG 1664 96 0
FLAG 1760 96 0
FLAG 1760 -16 OUT1
FLAG 1488 672 0
FLAG 1616 576 0
FLAG 1712 576 0
FLAG 1712 464 OUT2
FLAG 768 -288 IN
TEXT 1656 664 Left 2 !.tran 1.2m startup