* Z:\home\khalils\Downloads\files\data\raw_asc\LTC4441.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\LTC3803.asy)
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LTC4441.asy)
C2 OUT 0 25
R4 N003 N002 330K
R5 IN N004 100K
C3 N010 0 .0047
MQ1 N001 N005 N006 N006 Si7370DP
V1 IN 0 10
R2 N008 0 100K
Rload OUT 0 100
C1 N003 0 10
D1 N001 OUT MBR745
R3 N002 0 86.6K
L1 IN N001 10 Rpar=2K
R8 N012 0 10K
R9 OUT N012 300K
R6 N004 0 20K
XU2 N011 0 N012 N009 IN N007 LTC3803 ;pnba Ith/Run)GND)FB)Sense)Vcc)Ngate
R7 N006 N009 250
XU1 0 N009 N008 0 N007 N004 N002 IN N003 N005 LTC4441 ;pnba PGND)Blank)Rblank)SGND)IN)EN/SHDN)FB)Vin)DRVcc)OUT
R10 N011 N010 56K
R1 N006 0 5m
.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 4m startup
.lib LTC3803.sub
.lib LTC4441.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 880 692
WIRE -304 -64 -384 -64
WIRE -208 -64 -304 -64
WIRE 160 -64 -208 -64
WIRE 304 -64 160 -64
WIRE 432 -64 384 -64
WIRE 464 -64 432 -64
WIRE 560 -64 528 -64
WIRE 624 -64 560 -64
WIRE 688 -64 624 -64
WIRE -384 -48 -384 -64
WIRE 560 -48 560 -64
WIRE 688 -48 688 -64
WIRE -112 0 -128 0
WIRE -16 0 -32 0
WIRE 192 0 -16 0
WIRE 336 0 272 0
WIRE 368 0 336 0
WIRE 368 16 368 0
WIRE -384 48 -384 32
WIRE 160 48 160 -64
WIRE 560 48 560 16
WIRE 688 48 688 32
WIRE -208 80 -208 -64
WIRE -16 96 -16 0
WIRE 0 96 -16 96
WIRE 336 96 336 0
WIRE 336 96 320 96
WIRE 368 96 368 80
WIRE 432 112 432 -64
WIRE -208 192 -208 160
WIRE 0 192 -208 192
WIRE 384 192 320 192
WIRE -208 208 -208 192
WIRE 528 208 432 208
WIRE 528 256 528 208
WIRE 0 288 -144 288
WIRE 432 288 320 288
WIRE -208 304 -208 288
WIRE 432 304 432 288
WIRE -304 384 -304 -64
WIRE -96 384 -112 384
WIRE 0 384 -16 384
WIRE 528 384 528 336
WIRE 528 384 320 384
WIRE -144 432 -144 288
WIRE -144 432 -176 432
WIRE 160 448 160 432
WIRE -608 496 -624 496
WIRE -528 496 -544 496
WIRE -432 496 -448 496
WIRE 528 496 528 384
WIRE 528 496 -176 496
WIRE -96 560 -176 560
WIRE -16 560 -96 560
WIRE 624 560 624 -64
WIRE 624 560 64 560
WIRE -96 576 -96 560
WIRE -304 624 -304 608
WIRE -96 672 -96 656
SYMBOL res -16 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 86.6K
SYMBOL res -112 560 R0
SYMATTR InstName R8
SYMATTR Value 10K
SYMBOL cap -544 480 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value .0047
SYMBOL schottky 464 -48 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBR745
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 416 192 R0
SYMATTR InstName R1
SYMATTR Value 5m
SYMBOL res -224 192 R0
SYMATTR InstName R6
SYMATTR Value 20K
SYMBOL cap 352 16 R0
SYMATTR InstName C1
SYMATTR Value 10
SYMBOL res 0 368 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL res 80 544 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 300K
SYMBOL res 512 240 R0
SYMATTR InstName R7
SYMATTR Value 250
SYMBOL cap 544 -48 R0
SYMATTR InstName C2
SYMATTR Value 25
SYMBOL nmos 384 112 R0
SYMATTR InstName Q1
SYMATTR Value Si7370DP
SYMBOL res 288 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 330K
SYMBOL ind 288 -48 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 10
SYMATTR SpiceLine Rpar=2K
SYMBOL PowerProducts\\LTC4441 160 240 R0
SYMATTR InstName U1
SYMBOL PowerProducts\\LTC3803 -304 496 R0
SYMATTR InstName U2
SYMBOL res -224 64 R0
SYMATTR InstName R5
SYMATTR Value 100K
SYMBOL res -432 480 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 56K
SYMBOL res 672 -64 R0
SYMATTR InstName Rload
SYMATTR Value 100
SYMBOL voltage -384 -64 R0
SYMATTR InstName V1
SYMATTR Value 10
FLAG 432 304 0
FLAG 160 448 0
FLAG -112 384 0
FLAG -128 0 0
FLAG 368 96 0
FLAG -208 304 0
FLAG 560 48 0
FLAG -384 48 0
FLAG -304 624 0
FLAG -96 672 0
FLAG -624 496 0
FLAG 688 48 0
FLAG 688 -64 OUT
FLAG -384 -64 IN
TEXT 352 608 Left 2 !.tran 4m startup