* Z:\home\khalils\Downloads\files\data\raw_asc\LT1943.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\LT1943.asy)
R10 ON 0 1K
C10 N014 N015 .22
C4 N010 0 150p
R5 OFF N006 44.2K
R11 N016 N018 274K
D4 Vlogic N014 CMDSH2-3
C3 AVDD 0 10
D3 OFF N001 MBR0520L
R12 N018 0 10K
L5 N015 Vlogic 4.7
C13 N021 0 2200p Rser=6.8K Cpar=100p
XU1 0 N019 N021 N017 N008 N018 N006 N009 N020 N022 0 N014 N015 MP_01 N002 MP_02 N011 N010 N007 MP_03 N005 Vlogic N012 N016 N013 ON N003 LT1943 ;pnba GND)Vc1)Vc2)FB1)FB2)FB3)NFB4)FB4)Vc3)Vc4)SGND)BOOST)SW1))Vin))SS-234)RUN-SS)SW4))SW3)BIAS)_PGOOD)E3)CT)Von)SW2
R3 AVDD 0 24
C8 N006 N009 10p
C9 OFF 0 2.2
R9 Vlogic 0 2
R6 OFF 0 100
L2 N002 N003 10
C11 Vlogic 0 22
V1 N002 0 12
R4 N006 N009 10K
C2 N003 N004 1
R2 N008 0 10K
C16 ON 0 .47
C15 N022 0 3000p Rser=5K Cpar=100p
C7 N001 N007 .47
R8 Vlogic N017 16.2K
D1 N004 AVDD 1N5818
C5 N011 0 150p
C14 N020 0 680p Rser=27K Cpar=100p
R7 N017 0 10K
D5 0 N015 B520C
L4 Vlogic N007 10
L3 N004 0 10
C17 N016 0 2.2
C6 N013 0 150p
R1 AVDD N008 88.7K
L1 N002 N005 33 Rpar=25K
D2 N001 0 MBR0520L
C12 N019 0 2200p Rser=18K Cpar=100p
.model D D
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.dio
.tran 1m startup
.lib LT1943.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 1000 852
WIRE -480 -176 -560 -176
WIRE -384 -176 -480 -176
WIRE -352 -176 -384 -176
WIRE -256 -176 -288 -176
WIRE -112 -176 -256 -176
WIRE 112 -176 -16 -176
WIRE 240 -176 112 -176
WIRE 304 -176 240 -176
WIRE 416 -176 384 -176
WIRE 448 -176 416 -176
WIRE 528 -176 512 -176
WIRE 560 -176 528 -176
WIRE 656 -176 624 -176
WIRE 736 -176 656 -176
WIRE 832 -176 736 -176
WIRE -560 -160 -560 -176
WIRE -16 -160 -16 -176
WIRE -480 -144 -480 -176
WIRE 240 -144 240 -176
WIRE 736 -144 736 -176
WIRE 832 -144 832 -176
WIRE -256 -128 -256 -176
WIRE 528 -128 528 -176
WIRE -384 -96 -384 -176
WIRE -112 -80 -112 -176
WIRE -560 -64 -560 -80
WIRE -480 -64 -480 -80
WIRE -16 -64 -16 -80
WIRE 736 -48 736 -80
WIRE 832 -48 832 -64
WIRE -256 -32 -256 -64
WIRE 112 -32 112 -176
WIRE 240 -32 240 -64
WIRE 656 -32 656 -176
WIRE 528 -16 528 -48
WIRE -384 32 -384 -16
WIRE -304 32 -384 32
WIRE -256 32 -304 32
WIRE -208 32 -224 32
WIRE -112 32 -112 -16
WIRE -112 32 -128 32
WIRE 0 32 -112 32
WIRE 416 32 416 -176
WIRE 416 32 352 32
WIRE -384 64 -384 32
WIRE -304 64 -304 32
WIRE -256 96 -256 32
WIRE 0 96 -256 96
WIRE 656 96 656 48
WIRE 656 96 352 96
WIRE 656 112 656 96
WIRE -384 160 -384 144
WIRE -304 160 -304 128
WIRE -304 160 -384 160
WIRE 0 160 -304 160
WIRE 368 160 352 160
WIRE 496 160 432 160
WIRE 656 208 656 192
WIRE -224 224 -224 32
WIRE -224 224 -400 224
WIRE 0 224 -224 224
WIRE 416 224 352 224
WIRE 496 224 480 224
WIRE -224 240 -224 224
WIRE 0 288 -16 288
WIRE 368 288 352 288
WIRE 496 288 432 288
WIRE -224 352 -224 304
WIRE 0 352 -224 352
WIRE 768 352 352 352
WIRE 864 352 768 352
WIRE 864 368 864 352
WIRE 768 384 768 352
WIRE -496 416 -576 416
WIRE -400 416 -400 224
WIRE -400 416 -496 416
WIRE -352 416 -400 416
WIRE -224 416 -272 416
WIRE 0 416 -224 416
WIRE 592 416 352 416
WIRE 672 416 592 416
WIRE -576 432 -576 416
WIRE -224 432 -224 416
WIRE -496 448 -496 416
WIRE 592 448 592 416
WIRE 672 448 672 416
WIRE -400 464 -400 416
WIRE 0 480 -192 480
WIRE 544 480 352 480
WIRE 768 480 768 448
WIRE 864 480 864 448
WIRE -224 512 -224 496
WIRE -576 528 -576 512
WIRE -496 528 -496 512
WIRE 592 528 592 512
WIRE -112 544 -144 544
WIRE 0 544 -48 544
WIRE 400 544 352 544
WIRE 496 544 464 544
WIRE -400 560 -400 544
WIRE -192 560 -192 480
WIRE -192 560 -400 560
WIRE 544 560 544 480
WIRE 672 560 672 528
WIRE 672 560 544 560
WIRE 672 576 672 560
WIRE -400 592 -400 560
WIRE 0 608 -176 608
WIRE 416 608 352 608
WIRE -176 624 -176 608
WIRE 416 624 416 608
WIRE 672 672 672 656
WIRE -400 688 -400 672
WIRE 112 704 112 672
WIRE 240 704 240 672
WIRE -176 720 -176 688
WIRE 416 720 416 688
SYMBOL cap -512 448 R0
WINDOW 39 26 65 Left 2
SYMATTR Value 22
SYMATTR InstName C11
SYMBOL res 848 352 R0
SYMATTR InstName R10
SYMATTR Value 1K
SYMBOL cap -48 528 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 55 90 VTop 2
SYMATTR InstName C12
SYMATTR Value 2200p
SYMATTR SpiceLine Rser=18K Cpar=100p
SYMBOL cap -496 -144 R0
WINDOW 39 24 65 Left 2
SYMATTR InstName C9
SYMATTR Value 2.2
SYMBOL cap 368 304 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C6
SYMATTR Value 150p
SYMBOL cap 368 176 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C4
SYMATTR Value 150p
SYMBOL cap 752 384 R0
SYMATTR InstName C16
SYMATTR Value .47
SYMBOL cap 576 448 R0
SYMATTR Value 2.2
SYMATTR InstName C17
SYMBOL ind 288 -160 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value 10
SYMBOL cap -128 -80 R0
SYMATTR InstName C7
SYMATTR Value .47
SYMBOL res -416 576 R0
SYMATTR InstName R7
SYMATTR Value 10K
SYMBOL schottky -240 240 R0
SYMATTR InstName D4
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -576 -176 R0
SYMATTR InstName R6
SYMATTR Value 100
SYMBOL ind -256 432 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L5
SYMATTR Value 4.7
SYMBOL cap 400 528 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 54 93 VTop 2
SYMATTR InstName C14
SYMATTR Value 680p
SYMATTR SpiceLine Rser=27K Cpar=100p
SYMBOL schottky -272 -128 R0
SYMATTR InstName D2
SYMATTR Value MBR0520L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 816 -160 R0
SYMATTR InstName R3
SYMATTR Value 24
SYMBOL schottky -208 496 R180
WINDOW 0 8 62 Right 2
WINDOW 3 21 3 Left 2
SYMATTR InstName D5
SYMATTR Value B520C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -400 -112 R0
SYMATTR InstName R5
SYMATTR Value 44.2K
SYMBOL res 640 96 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL cap 720 -144 R0
WINDOW 39 26 72 Left 2
SYMATTR InstName C3
SYMATTR Value 10
SYMBOL res -416 448 R0
SYMATTR InstName R8
SYMATTR Value 16.2K
SYMBOL ind 512 -144 R0
SYMATTR InstName L3
SYMATTR Value 10
SYMBOL res 656 432 R0
SYMATTR InstName R11
SYMATTR Value 274K
SYMBOL ind 224 -160 R0
SYMATTR InstName L1
SYMATTR Value 33
SYMATTR SpiceLine Rpar=25K
SYMBOL schottky -352 -160 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D3
SYMATTR Value MBR0520L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap -320 64 R0
SYMATTR InstName C8
SYMATTR Value 10p
SYMBOL res 640 -48 R0
SYMATTR InstName R1
SYMATTR Value 88.7K
SYMBOL voltage -16 -176 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res -592 416 R0
SYMATTR InstName R9
SYMATTR Value 2
SYMBOL cap 416 240 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C5
SYMATTR Value 150p
SYMBOL res -400 48 R0
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL PowerProducts\\LT1943 176 320 R0
SYMATTR InstName U1
SYMBOL schottky 560 -160 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N5818
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 656 560 R0
SYMATTR InstName R12
SYMATTR Value 10K
SYMBOL cap 448 -160 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value 1
SYMBOL cap 432 624 M0
WINDOW 0 8 5 Right 2
WINDOW 3 -9 35 Right 2
WINDOW 39 5 69 Right 2
SYMATTR InstName C15
SYMATTR Value 3000p
SYMATTR SpiceLine Rser=5K Cpar=100p
SYMBOL ind -224 48 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L4
SYMATTR Value 10
SYMBOL cap -192 624 R0
WINDOW 0 21 9 Left 2
WINDOW 3 41 35 Left 2
WINDOW 39 29 71 Left 2
SYMATTR InstName C13
SYMATTR Value 2200p
SYMATTR SpiceLine Rser=6.8K Cpar=100p
SYMBOL cap -240 352 R0
WINDOW 0 36 19 Left 2
WINDOW 3 34 49 Left 2
SYMATTR InstName C10
SYMATTR Value .22
FLAG -16 -64 0
FLAG 528 -16 0
FLAG 736 -48 0
FLAG 656 208 0
FLAG 832 -48 0
FLAG 832 -176 AVDD
FLAG 496 288 0
FLAG 496 224 0
FLAG 496 160 0
FLAG -256 -32 0
FLAG -480 -64 0
FLAG -560 -64 0
FLAG -560 -176 OFF
FLAG -224 512 0
FLAG -400 688 0
FLAG -496 528 0
FLAG -576 528 0
FLAG -576 416 Vlogic
FLAG 112 704 0
FLAG 240 704 0
FLAG -144 544 0
FLAG -176 720 0
FLAG 496 544 0
FLAG 416 720 0
FLAG 864 480 0
FLAG 768 480 0
FLAG 672 672 0
FLAG 592 528 0
FLAG 864 352 ON
TEXT 600 768 Left 2 !.tran 1m startup