* Z:\home\khalils\Downloads\files\data\raw_asc\LT3753.asc
* Generated by LTspice 26.0.1 for Windows.
R1 N015 0 .012
L1 IN N002 216 Rser=12m Rpar=5K
L2 N001 N003 10.7 Rser=4.5m
L3 N001 OUT 3.3 Rser=5m Rpar=10K
C2 OUT 0 47 Rser=10m
R2 OUT N021 137K
R3 N021 0 137K
R4 N014 N011 1.96K
R5 0 N014 1.87K
V1 IN 0 48
Rload1 OUT 0 .25
C3 0 N009 4.7
M1 N002 N012 N015 N015 BSC190N15NS3
R6 N011 IN 105K
R7 N019 N018 1K
R8 N013 N009 100
R9 0 N025 1K
XU3 N018 N020 N013 N025 PC817 Igain=3.4m ;pnba A)K)C)E
C8 0 N016 .01
C9 0 N022 .01
R13 N010 0 30.1K
R14 N026 0 57.6K
R15 N027 0 14.7K
R16 N028 0 44.2K
R19 N017 N015 1K
M2 N003 N006 0 0 BSC0902NSI
C10 OUT 0 560 V=16 Irms=920m Rser=0.08 Lser=0 mfg="Nichicon" pn="UPL1C561MRH6" type="Al electrolytic"
C11 N002 N004 68n
M4 N004 N008 0 0 Si7113DN
C12 N008 N007 100n
R20 N008 0 10K
D1 N008 0 BAT46WJ
R25 N023 N024 100K
R26 N024 N025 100K
C4 N019 N018 4.7n
XU2 MP_01 MP_02 N010 N024 N023 NC_03 N016 N026 N011 N014 N028 NC_04 NC_05 N027 MP_06 MP_07 N022 0 0 0 N017 N015 MP_08 N012 MP_09 N009 MP_10 IN MP_11 NC_12 MP_13 N007 LT3753 ;pnba ))Rt)FB)Comp)SYNC)SS1)Ivsec)UVLO_Vsec)OVLO)Tao)Tas)Tos)Tblnk)))SS2)GND)PGND)Isensen)Isensep)OC))OUT))INTVcc))Vin))SOUT))AOUT
C6 N013 0 1
M3 N001 N005 0 0 BSC0902NSI
R11 N003 N005 5
R12 N001 N006 5
XU1 N020 NC_14 OUT NC_15 0 0 NC_16 N021 LT1431 ;pnba Coll)Comp)V+)Rtop)GND-S)GND-F)Rmid)Ref
C5 N020 N021 3.3n Rser=34.8K
C1 OUT 0 1
R10 OUT N019 100
C7 N019 0 22
D2 0 N019 1N750
C13 N002 N004 .22 Rser=200
.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
K1 L1 L2 1
.tran 5m startup
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\References\LT1431.asy)
.lib LT1431.sub
* Library below included based on ModelFile attribute of instance XU2 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LT3753.asy)
.lib LT3753.sub
* Library below included based on ModelFile attribute of instance XU3 (C:\users\khalils\AppData\Local\LTspice\lib\sym\Optos\PC817D.asy)
.lib PC817.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 1928 1028
WIRE -2928 -96 -3008 -96
WIRE -2624 -96 -2928 -96
WIRE -1840 -96 -2624 -96
WIRE -1344 -96 -1632 -96
WIRE -1296 -96 -1344 -96
WIRE -1152 -96 -1216 -96
WIRE -1056 -96 -1152 -96
WIRE -928 -96 -1056 -96
WIRE -768 -96 -928 -96
WIRE -720 -96 -768 -96
WIRE -3008 -80 -3008 -96
WIRE -1840 -80 -1840 -96
WIRE -1760 -80 -1840 -80
WIRE -1632 -80 -1632 -96
WIRE -1632 -80 -1712 -80
WIRE -1056 -80 -1056 -96
WIRE -928 -80 -928 -96
WIRE -720 -80 -720 -96
WIRE -1760 0 -1840 0
WIRE -1632 0 -1712 0
WIRE -1056 0 -1056 -16
WIRE -928 0 -928 -16
WIRE -3008 16 -3008 0
WIRE -1936 16 -1952 16
WIRE -1840 16 -1840 0
WIRE -1840 16 -1872 16
WIRE -720 16 -720 0
WIRE -1952 32 -1952 16
WIRE -1936 32 -1952 32
WIRE -1632 32 -1632 0
WIRE -1600 32 -1632 32
WIRE -1504 32 -1520 32
WIRE -1456 32 -1472 32
WIRE -1344 32 -1344 -96
WIRE -1344 32 -1376 32
WIRE -1632 64 -1632 32
WIRE -1344 64 -1344 32
WIRE -2528 80 -2528 64
WIRE -2432 80 -2432 64
WIRE -1936 80 -1936 32
WIRE -1920 80 -1936 80
WIRE -1840 80 -1840 16
WIRE -1840 80 -1856 80
WIRE -2208 112 -2336 112
WIRE -2128 112 -2144 112
WIRE -2032 112 -2128 112
WIRE -2000 112 -2032 112
WIRE -2128 128 -2128 112
WIRE -2032 128 -2032 112
WIRE -2928 144 -2928 -96
WIRE -1952 144 -1952 128
WIRE -1504 144 -1472 32
WIRE -1504 144 -1584 144
WIRE -1472 144 -1504 32
WIRE -1392 144 -1472 144
WIRE -2432 160 -2432 144
WIRE -2208 160 -2432 160
WIRE -1840 160 -1840 80
WIRE -2624 176 -2624 -96
WIRE -2528 176 -2528 160
WIRE -2432 176 -2432 160
WIRE -2336 176 -2336 112
WIRE -1632 176 -1632 160
WIRE -1344 176 -1344 160
WIRE -2032 208 -2032 192
WIRE -2928 240 -2928 224
WIRE -2736 240 -2928 240
WIRE -1888 240 -2224 240
WIRE -2928 256 -2928 240
WIRE -2208 304 -2208 160
WIRE -2080 304 -2208 304
WIRE -1920 304 -2000 304
WIRE -1696 304 -1920 304
WIRE -1920 320 -1920 304
WIRE -2736 336 -2928 336
WIRE -2112 336 -2224 336
WIRE -2928 352 -2928 336
WIRE -1920 400 -1920 384
WIRE -2816 432 -2832 432
WIRE -2736 432 -2752 432
WIRE -2208 432 -2224 432
WIRE -2112 432 -2112 336
WIRE -2112 432 -2128 432
WIRE -1840 432 -1840 256
WIRE -1840 432 -2112 432
WIRE -1424 432 -1456 432
WIRE -1344 432 -1360 432
WIRE -2928 448 -2928 432
WIRE -1840 448 -1840 432
WIRE -992 448 -1104 448
WIRE -816 448 -928 448
WIRE -768 464 -768 -96
WIRE -2816 528 -2832 528
WIRE -2736 528 -2752 528
WIRE -2208 528 -2224 528
WIRE -1696 528 -1696 304
WIRE -1664 528 -1696 528
WIRE -1456 528 -1456 432
WIRE -1456 528 -1472 528
WIRE -1440 528 -1456 528
WIRE -1344 528 -1344 432
WIRE -1344 528 -1360 528
WIRE -1840 544 -1840 528
WIRE -1104 560 -1104 448
WIRE -1088 560 -1104 560
WIRE -816 560 -816 448
WIRE -816 560 -832 560
WIRE -768 560 -768 544
WIRE -768 560 -816 560
WIRE -768 576 -768 560
WIRE -2208 624 -2224 624
WIRE -2112 624 -2128 624
WIRE -2096 624 -2112 624
WIRE -1728 624 -2016 624
WIRE -1664 624 -1728 624
WIRE -1104 624 -1104 560
WIRE -1104 624 -1472 624
WIRE -1728 640 -1728 624
WIRE -768 672 -768 656
WIRE -1344 688 -1344 528
WIRE -1344 688 -1456 688
WIRE -1280 688 -1344 688
WIRE -1152 688 -1152 -96
WIRE -1152 688 -1200 688
WIRE -1088 688 -1152 688
WIRE -816 688 -832 688
WIRE -1456 704 -1456 688
WIRE -1344 704 -1344 688
WIRE -1152 704 -1152 688
WIRE -2736 720 -2752 720
WIRE -2112 720 -2112 624
WIRE -2112 720 -2224 720
WIRE -1728 736 -1728 720
WIRE -816 752 -832 752
WIRE -1456 784 -1456 768
WIRE -1344 784 -1344 768
WIRE -1152 784 -1152 768
WIRE -2736 816 -2752 816
WIRE -2672 896 -2672 880
WIRE -2576 896 -2576 880
WIRE -2480 896 -2480 880
WIRE -2672 992 -2672 976
WIRE -2576 992 -2576 976
WIRE -2480 992 -2480 976
FLAG -1840 544 0
FLAG -1056 0 0
FLAG -720 16 0
FLAG -768 672 0
FLAG -2928 448 0
FLAG -3008 16 0
FLAG -3008 -96 IN
FLAG -720 -96 OUT
FLAG -2432 64 0
FLAG -1728 736 0
FLAG -2832 432 0
FLAG -2832 528 0
FLAG -2528 64 0
FLAG -2672 992 0
FLAG -2576 992 0
FLAG -2480 992 0
FLAG -2208 528 0
FLAG -1632 176 0
FLAG -1344 176 0
FLAG -928 0 0
FLAG -1952 144 0
FLAG -2032 208 0
FLAG -2128 208 0
FLAG -2752 720 0
FLAG -2752 816 0
FLAG -1920 400 0
FLAG -816 688 0
FLAG -816 752 0
FLAG -1152 784 0
FLAG -1344 784 0
FLAG -1456 784 0
SYMBOL res -1856 432 R0
SYMATTR InstName R1
SYMATTR Value .012
SYMBOL ind2 -1776 -96 R0
WINDOW 0 -8 37 Right 2
WINDOW 3 -5 77 Right 2
SYMATTR InstName L1
SYMATTR Value 216
SYMATTR Type ind
SYMATTR SpiceLine Rser=12m Rpar=5K
SYMBOL ind2 -1696 -96 M0
WINDOW 0 -1 35 Right 2
WINDOW 3 -7 80 Right 2
SYMATTR InstName L2
SYMATTR Value 10.7
SYMATTR Type ind
SYMATTR SpiceLine Rser=4.5m
SYMBOL ind2 -1312 -80 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L3
SYMATTR Value 3.3
SYMATTR SpiceLine Rser=5m Rpar=10K
SYMATTR Type ind
SYMBOL cap -1072 -80 R0
WINDOW 123 24 77 Left 2
SYMATTR Value 47
SYMATTR InstName C2
SYMATTR SpiceLine Rser=10m
SYMBOL res -784 448 R0
WINDOW 3 31 72 Left 2
SYMATTR Value 137K
SYMATTR InstName R2
SYMBOL res -784 560 R0
SYMATTR InstName R3
SYMATTR Value 137K
SYMBOL res -2944 352 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value 1.96K
SYMBOL res -2944 448 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R5
SYMATTR Value 1.87K
SYMBOL voltage -3008 -96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 48
SYMBOL res -736 -96 R0
SYMATTR InstName Rload1
SYMATTR Value .25
SYMBOL cap -2448 80 R0
SYMATTR InstName C3
SYMATTR Value 4.7
SYMBOL nmos -1888 160 R0
WINDOW 0 67 17 Left 2
WINDOW 3 60 68 Left 2
SYMATTR InstName M1
SYMATTR Value BSC190N15NS3
SYMBOL res -2944 240 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R6
SYMATTR Value 105K
SYMBOL res -1344 512 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 1K
SYMBOL res -1984 320 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R8
SYMATTR Value 100
SYMBOL res -1744 736 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R9
SYMATTR Value 1K
SYMBOL Optos\\PC817D -1568 576 M0
SYMATTR InstName U3
SYMBOL cap -2816 416 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value .01
SYMBOL cap -2816 512 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C9
SYMATTR Value .01
SYMBOL res -2544 176 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R13
SYMATTR Value 30.1K
SYMBOL res -2688 880 R0
SYMATTR InstName R14
SYMATTR Value 57.6K
SYMBOL res -2592 880 R0
SYMATTR InstName R15
SYMATTR Value 14.7K
SYMBOL res -2496 880 R0
SYMATTR InstName R16
SYMATTR Value 44.2K
SYMBOL res -2224 448 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R19
SYMATTR Value 1K
SYMBOL nmos -1584 64 M0
WINDOW 3 32 98 Right 2
WINDOW 0 5 -10 Left 2
SYMATTR Value BSC0902NSI
SYMATTR InstName M2
SYMBOL polcap -944 -80 R0
SYMATTR Value 560
SYMATTR InstName C10
SYMATTR SpiceLine V=16 Irms=920m Rser=0.08 Lser=0 mfg="Nichicon" pn="UPL1C561MRH6" type="Al electrolytic"
SYMATTR Description Capacitor
SYMATTR Type cap
SYMBOL cap -1872 0 R90
WINDOW 0 2 49 VBottom 2
WINDOW 3 28 0 VTop 2
SYMATTR InstName C11
SYMATTR Value 68n
SYMBOL pmos -2000 32 R0
WINDOW 0 11 -8 Left 2
WINDOW 3 -2 61 Right 2
SYMATTR InstName M4
SYMATTR Value Si7113DN
SYMBOL cap -2144 96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C12
SYMATTR Value 100n
SYMBOL res -2144 112 R0
SYMATTR InstName R20
SYMATTR Value 10K
SYMBOL schottky -2048 128 R0
SYMATTR InstName D1
SYMATTR Value BAT46WJ
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -2224 640 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R25
SYMATTR Value 100K
SYMBOL res -2112 640 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R26
SYMATTR Value 100K
SYMBOL cap -1360 416 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 4.7n
SYMBOL PowerProducts\\LT3753 -2480 528 R0
SYMATTR InstName U2
SYMBOL cap -1936 320 R0
SYMATTR InstName C6
SYMATTR Value 1
SYMBOL nmos -1392 64 R0
WINDOW 3 58 89 Left 2
WINDOW 0 57 19 Left 2
SYMATTR Value BSC0902NSI
SYMATTR InstName M3
SYMBOL res -1616 48 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R11
SYMATTR Value 5
SYMBOL res -1360 48 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R12
SYMATTR Value 5
SYMBOL References\\LT1431 -960 656 R0
SYMATTR InstName U1
SYMBOL cap -992 464 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
WINDOW 39 -21 32 VBottom 2
SYMATTR InstName C5
SYMATTR Value 3.3n
SYMATTR SpiceLine Rser=34.8K
SYMBOL cap -1168 704 R0
SYMATTR InstName C1
SYMATTR Value 1
SYMBOL res -1184 672 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 100
SYMBOL cap -1360 704 R0
SYMATTR InstName C7
SYMATTR Value 22
SYMBOL zener -1472 768 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value 1N750
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap -1856 64 R90
WINDOW 0 9 52 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 57 29 VTop 2
SYMATTR InstName C13
SYMATTR Value .22
SYMATTR SpiceLine Rser=200
TEXT -1736 -88 Bottom 2 !K1 L1 L2 1
TEXT -1216 952 Left 2 !.tran 5m startup