* Z:\home\khalils\Downloads\files\data\raw_asc\LTC2921.asc
* Generated by LTspice 26.0.1 for Windows.
* Library below included based on ModelFile attribute of instance XU4 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LT1763-2.5.asy), XU3 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LT1763-3.3.asy), XU2 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LT1763-5.asy)
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LTC2921.asy)
R9 N011 N019 100
R8 N009 N014 100
V3 N018 0 PULSE(0 2.8 27m 1m 1m 10 20)
Rload2 N010 0 70
R2 N012 _RESET 4.7K
C6 N009 0 10
Rload3 N003 0 70
MQ3 N009 N007 N010 N010 Si2316DS
R4 N017 0 49.9K
V4 N022 0 PULSE(0 5 2.5 100n 100n 200u 100)
XU4 N011 N019 0 N020 N018 MP_05 MP_06 N018 LT1763-2.5 ;pnba OUT)Sense)GND)BYP)_SHDN)))IN
Rload1 N012 0 70
R6 N016 0 49.9K
MQ4 N011 N007 N012 N012 Si2316DS
C1 N007 0 .47
R5 N009 N016 243K
R3 N011 N017 169K
XU2 N001 N006 0 N008 N004 MP_01 MP_02 N004 LT1763-5 ;pnba OUT)Sense)GND)BYP)_SHDN)))IN
C8 N011 N020 .01
V2 N013 0 PULSE(0 3.8 20m 1m 1m 10 20)
C11 N012 0 10
R7 N001 N006 100
R1 N002 N001 50m
C4 N001 N008 .01
C9 N003 0 10
XU3 N009 N014 0 N015 N013 MP_03 MP_04 N013 LT1763-3.3 ;pnba OUT)Sense)GND)BYP)_SHDN)))IN
C10 N010 0 10
MQ1 N002 N007 N003 N003 Si2316DS
MQ2 N016 N022 0 0 BSS123
S1 0 N003 N005 0 SSHRT
C5 N009 N015 .01
C3 N001 0 10
C2 N021 0 .22
V1 N004 0 PULSE(0 5.5 10m 1m 1m 10 20)
XU1 N016 N017 N017 N017 N019 N012 N014 N010 N006 N003 0 _RESET N007 N002 N001 N021 LTC2921 ;pnba V1)V2)V3)V4)S3)D3)S2)D2)S1)D1)Gnd)PG)Gate)Sense)Vcc)Timer
C7 N011 0 10
V5 N005 0 PULSE(0 1 2 100n 100n 100u 100)
.model NMOS NMOS
.model PMOS PMOS
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.mos
.tran 4
.model SSHRT SW(Ron=1 Roff=7 Vt=.5 Vh=-.3)
.lib LT1763.lib
.lib LTC2921.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 3736 3524
WIRE -1408 -1568 -1568 -1568
WIRE -1056 -1568 -1408 -1568
WIRE -944 -1568 -1056 -1568
WIRE -480 -1568 -944 -1568
WIRE -448 -1568 -480 -1568
WIRE -352 -1568 -368 -1568
WIRE -144 -1568 -352 -1568
WIRE 208 -1568 -48 -1568
WIRE 480 -1568 208 -1568
WIRE 608 -1568 480 -1568
WIRE 784 -1568 608 -1568
WIRE -2128 -1552 -2176 -1552
WIRE -1888 -1552 -2048 -1552
WIRE -1856 -1552 -1888 -1552
WIRE -944 -1552 -944 -1568
WIRE 480 -1552 480 -1568
WIRE 608 -1552 608 -1568
WIRE 784 -1552 784 -1568
WIRE -1056 -1536 -1056 -1568
WIRE 944 -1536 832 -1536
WIRE 944 -1520 944 -1536
WIRE -1344 -1504 -1568 -1504
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WIRE 608 -1456 608 -1472
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WIRE -1344 -1072 -1344 -1136
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WIRE -1264 -1072 -1344 -1072
WIRE 112 -1072 112 -1248
WIRE -960 -1008 -960 -1120
WIRE -848 -1008 -960 -1008
WIRE -560 -1008 -848 -1008
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WIRE -208 -1008 -272 -1008
WIRE -1712 -992 -1712 -1024
WIRE -208 -976 -208 -1008
WIRE -736 -928 -736 -1120
WIRE -624 -928 -736 -928
WIRE -560 -928 -624 -928
WIRE -960 -912 -960 -1008
WIRE -736 -912 -736 -928
WIRE -208 -896 -208 -912
WIRE -1408 -848 -1568 -848
WIRE -1184 -848 -1184 -1248
WIRE -1184 -848 -1408 -848
WIRE -624 -848 -624 -928
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WIRE -1856 -832 -1888 -832
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WIRE -960 -800 -960 -832
WIRE -736 -800 -736 -832
WIRE -1344 -784 -1568 -784
WIRE -624 -768 -624 -848
WIRE -560 -768 -624 -768
WIRE -96 -768 -272 -768
WIRE 112 -768 112 -992
WIRE 112 -768 -96 -768
WIRE -1888 -736 -1888 -832
WIRE -1856 -736 -1888 -736
WIRE -1520 -720 -1568 -720
WIRE -1408 -720 -1408 -848
WIRE -1408 -720 -1456 -720
WIRE -1344 -720 -1344 -784
WIRE -1184 -720 -1184 -752
WIRE -1184 -720 -1344 -720
WIRE -1056 -688 -1056 -1440
WIRE -560 -688 -1056 -688
WIRE 208 -688 208 -1568
WIRE 208 -688 -272 -688
WIRE -1712 -640 -1712 -672
WIRE -1264 -608 -1264 -1072
WIRE -560 -608 -1264 -608
WIRE 272 -608 272 -1408
WIRE 272 -608 -272 -608
WIRE -1184 -528 -1184 -720
WIRE -560 -528 -1184 -528
WIRE 352 -528 352 -1248
WIRE 352 -528 -272 -528
WIRE -848 -448 -848 -1008
WIRE -352 -416 -352 -432
WIRE -480 -384 -480 -432
WIRE -896 -368 -1312 -368
WIRE -1312 -336 -1312 -368
WIRE -848 -336 -848 -352
WIRE -352 -336 -352 -352
WIRE -1312 -240 -1312 -256
SYMBOL voltage 944 -1536 R0
SYMATTR InstName V5
SYMATTR Value PULSE(0 1 2 100n 100n 100u 100)
SYMBOL sw 784 -1456 R180
WINDOW 0 -19 103 Right 2
WINDOW 3 -35 2 Right 2
SYMATTR InstName S1
SYMATTR Value SSHRT
SYMBOL cap -960 -1552 R0
SYMATTR InstName C3
SYMATTR Value 10
SYMBOL voltage -2032 -832 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName V3
SYMATTR Value PULSE(0 2.8 27m 1m 1m 10 20)
SYMBOL cap -1456 -1456 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value .01
SYMBOL res -976 -928 R0
SYMATTR InstName R6
SYMATTR Value 49.9K
SYMBOL res 592 -1568 R0
SYMATTR InstName Rload3
SYMATTR Value 70
SYMBOL res -976 -1216 R0
SYMATTR InstName R5
SYMATTR Value 243K
SYMBOL cap -1232 -1376 R0
SYMATTR InstName C6
SYMATTR Value 10
SYMBOL cap -1456 -1088 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value .01
SYMBOL cap -1456 -736 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value .01
SYMBOL res 592 -1408 R0
SYMATTR InstName Rload2
SYMATTR Value 70
SYMBOL res -752 -1216 R0
SYMATTR InstName R3
SYMATTR Value 169K
SYMBOL cap 464 -1552 R0
SYMATTR InstName C9
SYMATTR Value 10
SYMBOL cap 464 -1216 R0
SYMATTR InstName C11
SYMATTR Value 10
SYMBOL res -352 -1584 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 50m
SYMBOL res 592 -1248 R0
SYMATTR InstName Rload1
SYMATTR Value 70
SYMBOL PowerProducts\\LT1763-5 -1712 -1504 R0
SYMATTR InstName U2
SYMBOL res 96 -1088 R0
SYMATTR InstName R2
SYMATTR Value 4.7K
SYMBOL nmos -144 -1520 R270
WINDOW 0 58 53 VTop 2
WINDOW 3 25 96 VRight 2
SYMATTR InstName Q1
SYMATTR Value Si2316DS
SYMBOL voltage -2032 -1552 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(0 5.5 10m 1m 1m 10 20)
SYMBOL LTC2921 -416 -768 R0
SYMATTR InstName U1
SYMBOL PowerProducts\\LT1763-3.3 -1712 -1136 R0
SYMATTR InstName U3
SYMBOL nmos -896 -448 R0
SYMATTR InstName Q2
SYMATTR Value BSS123
SYMBOL res -1280 -1184 R0
SYMATTR InstName R8
SYMATTR Value 100
SYMBOL nmos -144 -1360 R270
WINDOW 0 58 53 VTop 2
WINDOW 3 25 96 VRight 2
SYMATTR InstName Q3
SYMATTR Value Si2316DS
SYMBOL nmos -144 -1200 R270
WINDOW 0 58 53 VTop 2
WINDOW 3 25 96 VRight 2
SYMATTR InstName Q4
SYMATTR Value Si2316DS
SYMBOL cap -368 -416 R0
SYMATTR InstName C2
SYMATTR Value .22
SYMBOL cap 464 -1392 R0
SYMATTR InstName C10
SYMATTR Value 10
SYMBOL voltage -2032 -1184 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 3.8 20m 1m 1m 10 20)
SYMBOL res -1072 -1552 R0
SYMATTR InstName R7
SYMATTR Value 100
SYMBOL res -1200 -848 R0
SYMATTR InstName R9
SYMATTR Value 100
SYMBOL PowerProducts\\LT1763-2.5 -1712 -784 R0
SYMATTR InstName U4
SYMBOL cap -224 -976 R0
SYMATTR InstName C1
SYMATTR Value .47
SYMBOL cap -1136 -1216 R0
SYMATTR InstName C7
SYMATTR Value 10
SYMBOL voltage -1312 -352 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value PULSE(0 5 2.5 100n 100n 200u 100)
SYMBOL res -752 -928 R0
SYMATTR InstName R4
SYMATTR Value 49.9K
FLAG 608 -1456 0
FLAG 784 -1456 0
FLAG 944 -1424 0
FLAG 848 -1488 0
FLAG -2176 -1184 0
FLAG -2176 -832 0
FLAG 608 -1296 0
FLAG 608 -1120 0
FLAG -2176 -1552 0
FLAG -208 -896 0
FLAG -352 -336 0
FLAG -480 -384 0
FLAG -736 -800 0
FLAG -960 -800 0
FLAG -944 -1472 0
FLAG -1712 -1360 0
FLAG -1712 -992 0
FLAG -1216 -1296 0
FLAG -1120 -1136 0
FLAG -1712 -640 0
FLAG -96 -768 _RESET
FLAG -848 -336 0
FLAG -1312 -240 0
FLAG 480 -1456 0
FLAG 480 -1296 0
FLAG 480 -1120 0
TEXT 576 -440 Left 2 !.tran 4
TEXT 400 -1000 Left 2 !.model SSHRT SW(Ron=1 Roff=7 Vt=.5 Vh=-.3)