* Z:\home\khalils\Downloads\files\data\raw_asc\LT1620.asc
* Generated by LTspice 26.0.1 for Windows.
* Library below included based on ModelFile attribute of instance XU2 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LT1620.asy)
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LTC1435A.asy)
C5 OUT 0 220 Rser=50m
Rload OUT 0 10
MQ1 N006 N011 0 0 Si4412DY
C11 N007 N010 .033
XU2 N013 MP_01 N007 MP_02 0 N016 MP_03 OUT N009 MP_04 N001 N014 N017 N018 MP_05 N015 LT1620 ;pnba Sense))Iout))GND)Mode))IN-)IN+))Vcc)AVE2)PROG2)PROG))AVE
XU1 N003 N005 N007 N001 0 N012 N013 N001 N002 0 N011 N001 IN N006 N008 N004 LTC1435A ;pnba OSC)SOFT)Ith)SFB)SGND)Vosense)SEN-)SEN+)ExtVcc)PGND)BG)IntVcc)Vin)SW)Boost)TG
D1 N001 N008 1N5818
C1 N009 OUT .01
R2 OUT N012 1.44Meg
C9 N012 0 100p
C7 N003 0 56p
MQ2 IN N004 N006 N006 Si4412DY
C12 N001 N015 .1
R6 N010 0 1K
C8 OUT N012 100p
C10 N010 0 100p
R4 N001 N018 3K
R5 0 N018 15.75K
C2 N001 0 4.7
L1 N006 N009 27
R1 N009 OUT 25m
V1 IN 0 23
C4 N006 N008 .1
C3 N001 N013 100p
R3 N012 0 110K
C6 N005 0 .001
.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
.tran 5m startup
.lib LT1620.sub
.lib LTC1435A.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 4360 1928
WIRE 3200 592 2672 592
WIRE 3376 592 3200 592
WIRE 2896 608 2464 608
WIRE 3376 608 3376 592
WIRE 2672 624 2672 592
WIRE 3200 672 3200 592
WIRE 2464 688 2464 608
WIRE 2496 688 2464 688
WIRE 2880 688 2848 688
WIRE 3376 704 3376 688
WIRE 2416 752 2320 752
WIRE 2496 752 2480 752
WIRE 3152 752 2848 752
WIRE 2352 816 2320 816
WIRE 2496 816 2416 816
WIRE 3200 816 3200 768
WIRE 3200 816 2848 816
WIRE 2384 880 2288 880
WIRE 2496 880 2384 880
WIRE 2928 880 2848 880
WIRE 3088 880 2928 880
WIRE 3200 880 3200 816
WIRE 3200 880 3152 880
WIRE 3280 880 3200 880
WIRE 3424 880 3360 880
WIRE 3440 880 3424 880
WIRE 3536 880 3520 880
WIRE 3616 880 3536 880
WIRE 3712 880 3616 880
WIRE 3856 880 3712 880
WIRE 3968 880 3856 880
WIRE 2288 896 2288 880
WIRE 3856 896 3856 880
WIRE 3968 896 3968 880
WIRE 3200 928 3200 880
WIRE 2896 944 2896 608
WIRE 2896 944 2848 944
WIRE 2928 944 2896 944
WIRE 3712 960 3712 880
WIRE 2288 976 2288 960
WIRE 2288 976 2160 976
WIRE 3616 976 3616 880
WIRE 2160 992 2160 976
WIRE 2288 992 2288 976
WIRE 3856 992 3856 960
WIRE 3968 992 3968 976
WIRE 2496 1008 2448 1008
WIRE 3152 1008 2848 1008
WIRE 2496 1072 2448 1072
WIRE 3200 1072 3200 1024
WIRE 3200 1072 2848 1072
WIRE 2160 1088 2160 1056
WIRE 2288 1088 2288 1072
WIRE 3200 1088 3200 1072
WIRE 2928 1120 2928 944
WIRE 2976 1120 2928 1120
WIRE 3056 1120 3040 1120
WIRE 2448 1184 2448 1072
WIRE 3616 1184 3616 1040
WIRE 3616 1184 2448 1184
WIRE 3712 1184 3712 1040
WIRE 3712 1184 3616 1184
WIRE 2448 1200 2448 1184
WIRE 3712 1200 3712 1184
WIRE 2576 1232 2576 1152
WIRE 2640 1232 2576 1232
WIRE 2768 1232 2768 1152
WIRE 2768 1232 2704 1232
WIRE 2928 1232 2928 1120
WIRE 2928 1232 2768 1232
WIRE 3152 1232 2928 1232
WIRE 3232 1232 3152 1232
WIRE 2448 1280 2448 1264
WIRE 3152 1280 3152 1232
WIRE 2928 1296 2928 1232
WIRE 3232 1296 3232 1232
WIRE 3712 1296 3712 1280
WIRE 2576 1360 2576 1232
WIRE 2752 1360 2576 1360
WIRE 3120 1360 3104 1360
WIRE 2384 1440 2384 880
WIRE 2752 1440 2384 1440
WIRE 3152 1440 3152 1344
WIRE 3152 1440 3104 1440
WIRE 2752 1520 2736 1520
WIRE 3120 1520 3104 1520
WIRE 3232 1600 3232 1376
WIRE 3232 1600 3104 1600
WIRE 3248 1600 3232 1600
WIRE 3344 1600 3328 1600
WIRE 2752 1680 2720 1680
WIRE 3152 1680 3104 1680
WIRE 3424 1680 3424 880
WIRE 3424 1680 3152 1680
WIRE 3152 1696 3152 1680
WIRE 2928 1760 2928 1744
WIRE 2720 1792 2720 1680
WIRE 3152 1792 3152 1760
WIRE 3152 1792 2720 1792
WIRE 3536 1792 3536 880
WIRE 3536 1792 3152 1792
SYMBOL res 3216 1280 R0
SYMATTR InstName R4
SYMATTR Value 3K
SYMBOL ind 3264 896 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 27
SYMBOL NMOS 3152 928 R0
SYMATTR InstName Q1
SYMATTR Value Si4412DY
SYMBOL cap 2704 1216 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 100p
SYMBOL cap 3136 1280 R0
SYMATTR InstName C12
SYMATTR Value .1
SYMBOL cap 3600 976 R0
SYMATTR InstName C8
SYMATTR Value 100p
SYMBOL cap 2416 800 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value .001
SYMBOL cap 2272 896 R0
SYMATTR InstName C11
SYMATTR Value .033
SYMBOL res 3696 1184 R0
SYMATTR InstName R3
SYMATTR Value 110K
SYMBOL res 2272 976 R0
SYMATTR InstName R6
SYMATTR Value 1K
SYMBOL cap 2432 1200 R0
SYMATTR InstName C9
SYMATTR Value 100p
SYMBOL res 3696 944 R0
SYMATTR InstName R2
SYMATTR Value 1.44Meg
SYMBOL schottky 2912 944 M180
WINDOW 0 40 46 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N5818
SYMBOL POWERPRODUCTS\\LT1620 2928 1520 R0
SYMATTR InstName U2
SYMBOL cap 3152 864 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value .1
SYMBOL nmos 3152 672 R0
SYMATTR InstName Q2
SYMATTR Value Si4412DY
SYMBOL polcap 3840 896 R0
SYMATTR InstName C5
SYMATTR Value 220
SYMATTR SpiceLine Rser=50m
SYMBOL cap 3136 1696 R0
SYMATTR InstName C1
SYMATTR Value .01
SYMBOL cap 2480 736 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 56p
SYMBOL VOLTAGE 3376 592 R0
SYMATTR InstName V1
SYMATTR Value 23
SYMBOL RES 3424 896 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 25m
SYMBOL POWERPRODUCTS\\LTC1435A 2672 912 R0
SYMATTR InstName U1
SYMBOL cap 2976 1136 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value 4.7
SYMBOL res 3952 880 R0
SYMATTR InstName Rload
SYMATTR Value 10
SYMBOL res 3344 1584 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 15.75K
SYMBOL cap 2144 992 R0
SYMATTR InstName C10
SYMATTR Value 100p
FLAG 3200 1088 0
FLAG 2928 1760 0
FLAG 2448 1008 0
FLAG 3056 1120 0
FLAG 3856 992 0
FLAG 2320 752 0
FLAG 2320 816 0
FLAG 3376 704 0
FLAG 3712 1296 0
FLAG 2448 1280 0
FLAG 3344 1600 0
FLAG 2160 1088 0
FLAG 2288 1088 0
FLAG 3968 992 0
FLAG 3968 880 OUT
FLAG 3376 592 IN
TEXT 3600 1384 Left 2 !.tran 5m startup