* Z:\home\khalils\Downloads\files\data\raw_asc\3725-3726.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\LTC3725.asy)
* Library below included based on ModelFile attribute of instance XU2 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LTC3726.asy)
L2 N016 N023 1200 Rser=.91
D2 0 N004 BZX84C8V2L
C14 OUT 0 1000
L3 IN N005 194 Rpar=10K
D1 N001 N002 CMDSH2-3
C7 N019 0 1
L6 N003 OUT 1.5 Rpar=1K
C6 N024 0 .001
R9 N012 0 2m
L5 N001 0 100 Rser=2 Rpar=10K
R5 OUT N015 110K
R10 N002 N004 500
MQ3 N003 N010 0 0 IRF6623
C1 N020 N022 1
MQ2 N005 N007 N009 N009 Si7540DP_N
R3 IN N014 365K
R8 N009 0 25m
R6 N015 0 24.9K
V1 IN 0 36
C8 N021 0 .001
R1 N023 0 162K
XU2 N010 N008 0 N015 N018 N021 0 0 0 N012 0 N003 0 N020 N017 N011 LTC3726 ;pnba SG)FG)Mode)FB)Ith)Run/SS)SLP)GND)FS/Sync)Is-)Is+)SW)PGND)PT-)PT+)Vcc
K1 L3 L4 L5 1
Q5 N002 N004 N011 0 FZT849
C16 N011 0 34
C15 N002 0 10
L4 N003 N006 9.58 Rpar=10K
R2 IN N013 100K
L1 N017 N022 300 Rser=.38
R4 N014 0 15K
MQ4 N006 N008 N012 N012 IRF6623
Rload OUT 0 .165
MQ1 IN N013 N019 N019 FDC2512
C9 N018 0 680p Rser=20K
K2 L1 L2 1
XU1 N014 N024 N013 N016 N023 0 N007 N019 0 N009 0 LTC3725 ;pnba UVLO)SSFLT)Ndrv)FB/IN+)FS/IN-)PGND)Gate)Vcc)VSLMT)IS)GND
.model D D
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.dio
.model NPN NPN
.model PNP PNP
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.bjt
.model NMOS NMOS
.model PMOS PMOS
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.mos
.tran .75m startup
.lib LTC3725.sub
.lib LTC3726.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 7140 9728
WIRE 4016 1360 3888 1360
WIRE 4176 1360 4080 1360
WIRE 4672 1360 4176 1360
WIRE 4768 1360 4672 1360
WIRE 3888 1376 3888 1360
WIRE 4176 1376 4176 1360
WIRE 4768 1408 4768 1360
WIRE 4176 1456 4176 1440
WIRE 3888 1472 3888 1456
WIRE 3968 1472 3888 1472
WIRE 3968 1488 3968 1472
WIRE 3376 1520 3296 1520
WIRE 3840 1520 3376 1520
WIRE 4416 1520 3888 1520
WIRE 4464 1520 4416 1520
WIRE 4480 1520 4464 1520
WIRE 4576 1520 4560 1520
WIRE 4944 1520 4576 1520
WIRE 4992 1520 4944 1520
WIRE 3296 1536 3296 1520
WIRE 3840 1536 3840 1520
WIRE 3888 1536 3888 1520
WIRE 4576 1536 4576 1520
WIRE 4992 1536 4992 1520
WIRE 4672 1568 4672 1360
WIRE 4576 1616 4576 1600
WIRE 4768 1616 4768 1488
WIRE 4768 1616 4736 1616
WIRE 3296 1632 3296 1616
WIRE 3840 1632 3840 1616
WIRE 3840 1632 3760 1632
WIRE 3888 1632 3888 1616
WIRE 3968 1632 3888 1632
WIRE 4768 1632 4768 1616
WIRE 4992 1632 4992 1616
WIRE 3968 1648 3968 1632
WIRE 4464 1680 4464 1520
WIRE 3712 1712 3696 1712
WIRE 4768 1712 4768 1696
WIRE 3376 1728 3376 1520
WIRE 3376 1728 3280 1728
WIRE 3552 1728 3376 1728
WIRE 4288 1728 4016 1728
WIRE 3552 1744 3552 1728
WIRE 3760 1744 3760 1728
WIRE 3840 1744 3760 1744
WIRE 3376 1760 3376 1728
WIRE 3760 1760 3760 1744
WIRE 4544 1760 4512 1760
WIRE 4672 1760 4672 1664
WIRE 4784 1760 4672 1760
WIRE 3280 1776 3280 1728
WIRE 3968 1776 3968 1744
WIRE 4176 1776 3968 1776
WIRE 4784 1776 4784 1760
WIRE 3968 1792 3968 1776
WIRE 4288 1824 4288 1728
WIRE 4416 1824 4416 1520
WIRE 4544 1824 4544 1760
WIRE 4672 1824 4672 1760
WIRE 3552 1840 3552 1824
WIRE 3552 1840 3424 1840
WIRE 3760 1856 3760 1840
WIRE 4784 1856 4784 1840
WIRE 4944 1872 4944 1520
WIRE 3552 1888 3552 1840
WIRE 3696 1888 3696 1712
WIRE 3840 1888 3840 1744
WIRE 3968 1888 3968 1872
WIRE 4144 1888 3968 1888
WIRE 3968 1904 3968 1888
WIRE 4176 1904 4176 1776
WIRE 4208 1904 4176 1904
WIRE 4784 1904 4752 1904
WIRE 3280 1968 3280 1856
WIRE 3440 1968 3280 1968
WIRE 4144 1968 4144 1888
WIRE 4208 1968 4144 1968
WIRE 4944 1968 4944 1952
WIRE 4944 1968 4752 1968
WIRE 3280 1984 3280 1968
WIRE 4944 1984 4944 1968
WIRE 4032 2000 3936 2000
WIRE 4192 2000 4080 2000
WIRE 4032 2032 4032 2000
WIRE 4080 2032 4080 2000
WIRE 4192 2032 4192 2000
WIRE 4208 2032 4192 2032
WIRE 4800 2032 4752 2032
WIRE 4896 2032 4864 2032
WIRE 3280 2080 3280 2064
WIRE 3376 2080 3376 1856
WIRE 3440 2080 3376 2080
WIRE 4944 2080 4944 2064
WIRE 4208 2096 4192 2096
WIRE 4800 2096 4752 2096
WIRE 4800 2112 4800 2096
WIRE 4080 2144 4080 2112
WIRE 4128 2144 4080 2144
WIRE 4192 2144 4192 2096
WIRE 3376 2160 3376 2144
WIRE 4032 2160 4032 2112
WIRE 4032 2160 3936 2160
WIRE 4032 2176 4032 2160
WIRE 3440 2192 3360 2192
WIRE 4800 2192 4800 2176
WIRE 3360 2208 3360 2192
WIRE 4288 2208 4288 2176
WIRE 4416 2208 4416 2176
WIRE 4544 2208 4544 2176
WIRE 4672 2208 4672 2176
WIRE 4032 2272 4032 2256
WIRE 3360 2304 3360 2272
WIRE 3552 2304 3552 2272
WIRE 3696 2304 3696 2272
WIRE 3840 2304 3840 2272
LINE Normal 3863 1618 3863 1378 2
LINE Normal 4055 2146 4055 2002 2
SYMBOL zener 4752 1696 M180
WINDOW 0 29 60 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value BZX84C8V2L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 4016 1376 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 3952 1776 R0
SYMATTR InstName R9
SYMATTR Value 2m
SYMBOL cap 4784 2112 R0
SYMATTR InstName C8
SYMATTR Value .001
SYMBOL ind2 3904 1520 M0
WINDOW 0 -9 32 Right 2
WINDOW 3 -6 75 Right 2
SYMATTR InstName L4
SYMATTR Value 9.58
SYMATTR Type ind
SYMATTR SpiceLine Rpar=10K
SYMBOL cap 3360 2080 R0
WINDOW 0 30 15 Left 2
WINDOW 3 29 52 Left 2
SYMATTR InstName C7
SYMATTR Value 1
SYMBOL ind2 3904 1360 M0
WINDOW 0 -5 33 Right 2
WINDOW 3 -5 75 Right 2
SYMATTR InstName L5
SYMATTR Value 100
SYMATTR Type ind
SYMATTR SpiceLine Rser=2 Rpar=10K
SYMBOL npn 4736 1568 M0
WINDOW 0 49 -6 Right 2
WINDOW 3 59 121 Right 2
SYMATTR InstName Q5
SYMATTR Value FZT849
SYMBOL res 4928 1968 R0
SYMATTR InstName R6
SYMATTR Value 24.9K
SYMBOL res 4752 1392 R0
SYMATTR InstName R10
SYMATTR Value 500
SYMBOL nmos 4016 1648 M0
WINDOW 0 40 -9 Right 2
WINDOW 3 30 97 Right 2
SYMATTR InstName Q4
SYMATTR Value IRF6623
SYMBOL PowerProducts\\LTC3725 3696 2080 R0
SYMATTR InstName U1
SYMBOL cap 4560 1536 R0
SYMATTR InstName C14
SYMATTR Value 1000
SYMBOL res 4016 2160 R0
SYMATTR InstName R1
SYMATTR Value 162K
SYMBOL res 4976 1520 R0
SYMATTR InstName Rload
SYMATTR Value .165
SYMBOL res 3264 1968 R0
WINDOW 3 33 79 Left 2
SYMATTR Value 15K
SYMATTR InstName R4
SYMBOL nmos 4512 1680 M0
WINDOW 0 -2 29 Right 2
WINDOW 3 -3 61 Right 2
SYMATTR InstName Q3
SYMATTR Value IRF6623
SYMBOL PowerProducts\\LTC3726 4480 2000 R0
SYMATTR InstName U2
SYMBOL ind2 4016 2016 R0
WINDOW 0 -1 41 Right 2
WINDOW 3 -1 74 Right 2
SYMATTR InstName L2
SYMATTR Value 1200
SYMATTR Type ind
SYMATTR SpiceLine Rser=.91
SYMBOL cap 4800 2016 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 51 32 VTop 2
SYMATTR InstName C9
SYMATTR Value 680p
SYMATTR SpiceLine Rser=20K
SYMBOL cap 3344 2208 R0
SYMATTR InstName C6
SYMATTR Value .001
SYMBOL res 3744 1744 R0
SYMATTR InstName R8
SYMATTR Value 25m
SYMBOL ind2 3824 1520 R0
WINDOW 0 -4 32 Right 2
WINDOW 3 -3 73 Right 2
SYMATTR InstName L3
SYMATTR Value 194
SYMATTR Type ind
SYMATTR SpiceLine Rpar=10K
SYMBOL res 3536 1728 R0
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL cap 4160 1376 R0
SYMATTR InstName C15
SYMATTR Value 10
SYMBOL res 3264 1760 R0
SYMATTR InstName R3
SYMATTR Value 365K
SYMBOL cap 4192 2128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 34 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1
SYMBOL res 4928 1856 R0
SYMATTR InstName R5
SYMATTR Value 110K
SYMBOL cap 4768 1776 R0
SYMATTR InstName C16
SYMATTR Value 34
SYMBOL ind2 4464 1536 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 4 56 VBottom 2
SYMATTR InstName L6
SYMATTR Value 1.5
SYMATTR Type ind
SYMATTR SpiceLine Rpar=1K
SYMBOL voltage 3296 1520 R0
SYMATTR InstName V1
SYMATTR Value 36
SYMBOL nmos 3712 1632 R0
WINDOW 0 60 30 Left 2
WINDOW 3 57 65 Left 2
SYMATTR InstName Q2
SYMATTR Value Si7540DP_N
SYMBOL ind2 4096 2016 M0
WINDOW 0 -2 41 Right 2
WINDOW 3 0 75 Right 2
SYMATTR InstName L1
SYMATTR Value 300
SYMATTR Type ind
SYMATTR SpiceLine Rser=.38
SYMBOL nmos 3424 1760 M0
WINDOW 0 32 -4 Right 2
WINDOW 3 39 106 Right 2
SYMATTR InstName Q1
SYMATTR Value FDC2512
FLAG 3296 1632 0
FLAG 3552 2304 0
FLAG 3696 2304 0
FLAG 3840 2304 0
FLAG 3360 2304 0
FLAG 4032 2272 0
FLAG 3280 2080 0
FLAG 3376 2160 0
FLAG 4288 2208 0
FLAG 4416 2208 0
FLAG 4672 2208 0
FLAG 4800 2192 0
FLAG 4896 2032 0
FLAG 4944 2080 0
FLAG 4784 1904 0
FLAG 4544 2208 0
FLAG 3760 1856 0
FLAG 3968 1904 0
FLAG 4464 1776 0
FLAG 4576 1616 0
FLAG 4992 1632 0
FLAG 3968 1488 0
FLAG 4176 1456 0
FLAG 4768 1712 0
FLAG 4784 1856 0
FLAG 3296 1520 IN
FLAG 4992 1520 OUT
TEXT 3864 1360 Bottom 2 !K1 L3 L4 L5 1
TEXT 4056 2000 Bottom 2 !K2 L1 L2 1
TEXT 4744 2272 Right 2 !.tran .75m startup