* Z:\home\khalils\Downloads\files\data\raw_asc\LTC4421.asc
* Generated by LTspice 26.0.1 for Windows.
R4 N001 N010 1110K
R3 N010 N011 33.2K
R2 N011 N012 29.4K
R1 N012 0 37.4K
R8 N004 N013 2206K
R7 N013 N014 66.5K
R6 N014 N016 100K
R5 N016 0 33.2K
M1 N001 N007 N002 N002 PSMN4R8100BSE
Rsense_1 N003 OUT 1.2m
Rsense_2 N006 OUT 1.2m
C_qual N017 0 2.20n
C_tmr1 N018 0 33n
C_tmr2 N019 0 33n
C_IntVcc N015 0 1
C_EXTVcc OUT 0 .1
C_CPO OUT N009 1
CSN1 N004 0 10 Rser=1.15
Lsource_1 Primary_Supply N001 10n Rser=10m
Lsource_2 Secondary_Supply N004 10n Rser=10m
CGS1 N002 N007 47n
CGS2 N005 N008 47n
VSecondary_Supply Secondary_Supply 0 24V
VPrimary_Supply Primary_Supply 0 PWL(0 12 1 12 +10m 0)
XU1 N009 OUT OUT N003 N002 N007 N001 N010 N011 N012 N018 N015 NC_01 NC_02 NC_03 N015 N015 NC_04 N017 0 N015 NC_05 NC_06 NC_07 N015 N019 N016 N014 N013 N004 N008 N005 N006 OUT 0 OUT LTC4421 ;pnba CPO)CPORef)Out1)Sense1)Source1)Gate1)V1)UVF1)UVR1)OV1)Tmr1)_DISABLE1)_CH1)_VALID1)_FAULT1)CASIN)IntVcc)CASOUT)Qual)RETRY)_SHDN)_FAULT2)_VALID2)_CH2)_DISABLE2)Tmr2)OV2)UVR2)UVF2)V2)Gate2)Source2)Sense2)Out2)Gnd)ExtVcc
M2 N004 N008 N005 N005 PSMN4R8100BSE
M3 N003 N007 N002 N002 PSMN4R8100BSE
M4 N006 N008 N005 N005 PSMN4R8100BSE
Rload OUT 0 2
Cload OUT 0 400
CSN3 N001 0 10 Rser=.58
.model NMOS NMOS
.model PMOS PMOS
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.mos
* Parasitic Source Resistance\n & Inductance
.tran 2
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LTC4421.asy)
.lib LTC4421.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 2020 1220
WIRE -1312 -416 -1360 -416
WIRE -848 -416 -1312 -416
WIRE -592 -416 -768 -416
WIRE -480 -416 -592 -416
WIRE -144 -416 -480 -416
WIRE -128 -416 -144 -416
WIRE 48 -416 -32 -416
WIRE 80 -416 48 -416
WIRE 224 -416 176 -416
WIRE 336 -416 304 -416
WIRE 384 -416 336 -416
WIRE 1184 -416 384 -416
WIRE 1232 -416 1184 -416
WIRE 1344 -416 1232 -416
WIRE 1568 -416 1344 -416
WIRE -480 -400 -480 -416
WIRE -1312 -384 -1312 -416
WIRE 1344 -384 1344 -416
WIRE 1568 -384 1568 -416
WIRE -480 -320 -480 -336
WIRE 1344 -288 1344 -320
WIRE 1568 -288 1568 -304
WIRE -1312 -272 -1312 -304
WIRE -1312 -224 -1360 -224
WIRE -864 -224 -1312 -224
WIRE -560 -224 -784 -224
WIRE -416 -224 -560 -224
WIRE 592 -224 -416 -224
WIRE 608 -224 592 -224
WIRE 784 -224 704 -224
WIRE 800 -224 784 -224
WIRE 912 -224 896 -224
WIRE 960 -224 912 -224
WIRE 1072 -224 1040 -224
WIRE 1184 -224 1184 -416
WIRE 1184 -224 1072 -224
WIRE -560 -208 -560 -224
WIRE -1312 -192 -1312 -224
WIRE -48 -144 -48 -368
WIRE -32 -144 -48 -144
WIRE 48 -144 48 -416
WIRE 48 -144 32 -144
WIRE -560 -112 -560 -144
WIRE 384 -80 384 -416
WIRE 480 -80 384 -80
WIRE 688 -80 688 -176
WIRE 704 -80 688 -80
WIRE 784 -80 784 -224
WIRE 784 -80 768 -80
WIRE -1312 -64 -1312 -112
WIRE -48 -64 -48 -144
WIRE 96 -64 96 -368
WIRE 96 -64 -48 -64
WIRE 384 -48 384 -80
WIRE 336 -16 336 -416
WIRE 336 -16 272 -16
WIRE 1072 0 1072 -224
WIRE 1072 0 1008 0
WIRE -592 16 -592 -416
WIRE 688 16 688 -80
WIRE 816 16 816 -176
WIRE 816 16 688 16
WIRE -144 48 -144 -416
WIRE -48 48 -48 -64
WIRE 48 48 48 -144
WIRE 176 48 176 -416
WIRE 272 48 272 -16
WIRE 384 48 384 16
WIRE 480 48 480 -80
WIRE 592 48 592 -224
WIRE 688 48 688 16
WIRE 784 48 784 -80
WIRE 912 48 912 -224
WIRE 1008 48 1008 0
WIRE -592 112 -592 96
WIRE -272 112 -592 112
WIRE -592 128 -592 112
WIRE 1232 144 1232 -416
WIRE 1232 144 1136 144
WIRE 1232 160 1232 144
WIRE -592 240 -592 208
WIRE -272 240 -592 240
WIRE -592 256 -592 240
WIRE 1232 256 1232 224
WIRE -592 368 -592 336
WIRE -272 368 -592 368
WIRE -592 384 -592 368
WIRE -416 400 -416 -224
WIRE -592 480 -592 464
WIRE -416 496 -416 480
WIRE -272 496 -416 496
WIRE -416 512 -416 496
WIRE 1168 608 1136 608
WIRE -416 624 -416 592
WIRE -272 624 -416 624
WIRE -416 640 -416 624
WIRE 1168 656 1136 656
WIRE 1168 704 1168 656
WIRE 1168 704 1136 704
WIRE -416 752 -416 720
WIRE -272 752 -416 752
WIRE 1168 752 1168 704
WIRE 1168 752 1136 752
WIRE -416 768 -416 752
WIRE 1168 800 1168 752
WIRE 1168 800 1136 800
WIRE -416 864 -416 848
WIRE 80 864 80 848
WIRE 784 864 784 848
WIRE 1168 864 1168 800
WIRE 1168 864 784 864
WIRE 256 896 256 848
WIRE 432 896 432 848
WIRE 608 896 608 848
WIRE 784 896 784 864
WIRE 256 976 256 960
WIRE 432 976 432 960
WIRE 608 976 608 960
WIRE 784 976 784 960
FLAG -416 864 0
FLAG 1344 -288 0
FLAG 80 864 0
FLAG 1232 256 0
FLAG -480 -320 0
FLAG -560 -112 0
FLAG -1360 -416 Primary_Supply
FLAG -1360 -224 Secondary_Supply
FLAG -1312 -64 0
FLAG -1312 -272 0
FLAG 1568 -416 OUT
FLAG 1168 608 0
FLAG 256 976 0
FLAG 432 976 0
FLAG 608 976 0
FLAG 784 976 0
FLAG -592 480 0
FLAG 1568 -288 0
SYMBOL res -608 0 R0
SYMATTR Value 1110K
SYMATTR InstName R4
SYMBOL res -608 112 R0
SYMATTR Value 33.2K
SYMATTR InstName R3
SYMBOL res -608 240 R0
SYMATTR Value 29.4K
SYMATTR InstName R2
SYMBOL res -608 368 R0
SYMATTR Value 37.4K
SYMATTR InstName R1
SYMBOL res -432 384 R0
SYMATTR Value 2206K
SYMATTR InstName R8
SYMBOL res -432 496 R0
SYMATTR Value 66.5K
SYMATTR InstName R7
SYMBOL res -432 624 R0
SYMATTR Value 100K
SYMATTR InstName R6
SYMBOL res -432 752 R0
SYMATTR Value 33.2K
SYMATTR InstName R5
SYMBOL nmos -128 -368 R270
SYMATTR InstName M1
SYMATTR Value PSMN4R8100BSE
SYMBOL res 208 -400 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName Rsense_1
SYMATTR Value 1.2m
SYMBOL res 944 -208 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName Rsense_2
SYMATTR Value 1.2m
SYMBOL cap 240 896 R0
SYMATTR Value 2.20n
SYMATTR InstName C_qual
SYMBOL cap 416 896 R0
SYMATTR Value 33n
SYMATTR InstName C_tmr1
SYMBOL cap 592 896 R0
SYMATTR Value 33n
SYMATTR InstName C_tmr2
SYMBOL cap 768 896 R0
SYMATTR Value 1
SYMATTR InstName C_IntVcc
SYMBOL cap 1216 160 R0
SYMATTR Value .1
SYMATTR InstName C_EXTVcc
SYMBOL cap 368 -48 R0
SYMATTR Value 1
SYMATTR InstName C_CPO
SYMBOL cap -576 -208 R0
WINDOW 3 37 39 Left 2
WINDOW 123 22 64 Left 2
SYMATTR Value 10
SYMATTR Value2 Rser=1.15
SYMATTR InstName CSN1
SYMBOL ind -864 -400 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 123 -16 56 VBottom 2
SYMATTR InstName Lsource_1
SYMATTR Value 10n
SYMATTR Value2 Rser=10m
SYMBOL ind -880 -208 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 123 -16 56 VBottom 2
SYMATTR InstName Lsource_2
SYMATTR Value 10n
SYMATTR Value2 Rser=10m
SYMBOL cap 32 -160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName CGS1
SYMATTR Value 47n
SYMBOL cap 768 -96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName CGS2
SYMATTR Value 47n
SYMBOL VOLTAGE -1312 -208 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Secondary_Supply
SYMATTR Value 24V
SYMBOL VOLTAGE -1312 -400 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Primary_Supply
SYMATTR Value PWL(0 12 1 12 +10m 0)
SYMBOL LTC4421 432 448 R0
SYMATTR InstName U1
SYMBOL nmos 608 -176 R270
SYMATTR InstName M2
SYMATTR Value PSMN4R8100BSE
SYMBOL nmos 176 -368 M270
SYMATTR InstName M3
SYMATTR Value PSMN4R8100BSE
SYMBOL nmos 896 -176 M270
SYMATTR InstName M4
SYMATTR Value PSMN4R8100BSE
SYMBOL res 1552 -400 R0
WINDOW 0 36 40 Left 4
SYMATTR InstName Rload
SYMATTR Value 2
SYMBOL cap 1328 -384 R0
WINDOW 0 24 8 Left 4
SYMATTR InstName Cload
SYMATTR Value 400
SYMBOL cap -496 -400 R0
WINDOW 3 48 39 Left 2
WINDOW 123 30 58 Left 2
SYMATTR Value 10
SYMATTR Value2 Rser=.58
SYMATTR InstName CSN3
TEXT -808 -112 Top 2 ;Parasitic Source Resistance\n & Inductance
TEXT 1432 952 Left 2 !.tran 2
RECTANGLE Normal -640 -16 -976 -512 2