* Z:\home\khalils\Downloads\files\data\raw_asc\LTC2921-3.3.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\LT1763-1.5.asy), XU1 (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)
* Library below included based on ModelFile attribute of instance XU2 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LTC2921-3.3.asy)
Rload2 N010 0 70
R7 N001 N006 100
MQ4 N016 N022 0 0 BSS123
C1 N007 0 .47
S1 0 N003 N005 0 SSHRT
MQ3 N002 N007 N003 N003 Si2316DS
V3 N018 0 PULSE(0 2.8 27m 1m 1m 10 20)
MQ2 N011 N007 N012 N012 Si2316DS
C8 N011 N021 .01
R9 N011 N019 100
C10 N010 0 10
XU4 N011 N019 0 N021 N018 MP_05 MP_06 N018 LT1763-1.5 ;pnba OUT)Sense)GND)BYP)_SHDN)))IN
C5 N009 N015 .01
V1 N004 0 PULSE(0 3.8 10m 1m 1m 10 20)
C3 N001 0 10
R6 N016 0 49.9K
C7 N011 0 10
R4 N017 0 49.9K
V4 N022 0 PULSE(0 5 2.5 100n 100n 200u 100)
R1 N002 N001 50m
XU3 N001 N006 0 N008 N004 MP_03 MP_04 N004 LT1763-3.3 ;pnba OUT)Sense)GND)BYP)_SHDN)))IN
C6 N009 0 10
R8 N009 N014 100
Rload1 N012 0 70
MQ1 N009 N007 N010 N010 Si2316DS
C4 N001 N008 .01
Rload3 N003 0 70
C2 N023 0 .22
R2 N012 N020 4.7K
R3 N011 N017 86.6K
XU1 N009 N014 0 N015 N013 MP_01 MP_02 N013 LT1763-2.5 ;pnba OUT)Sense)GND)BYP)_SHDN)))IN
R5 N009 N016 178K
C9 N003 0 10
C11 N012 0 10
V2 N013 0 PULSE(0 3.8 20m 1m 1m 10 20)
XU2 N016 N017 N017 N017 N019 N012 N014 N010 N006 N003 0 N020 N007 N002 N001 N023 LTC2921-3.3 ;pnba V1)V2)V3)V4)S3)D3)S2)D2)S1)D1)Gnd)PG)Gate)Sense)Vcc)Timer
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 LTC2921-3.3.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 3736 3524
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WIRE 384 -1568 256 -1568
WIRE 608 -1568 384 -1568
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WIRE -1408 -720 -1456 -720
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WIRE -608 -688 -1056 -688
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WIRE 96 -688 -320 -688
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WIRE -848 -384 -848 -400
WIRE -528 -384 -528 -432
WIRE -400 -336 -400 -352
WIRE -1312 -304 -1312 -320
SYMBOL PowerProducts\\LT1763-2.5 -1712 -1136 R0
SYMATTR InstName U1
SYMBOL sw 608 -1456 R180
WINDOW 0 -6 98 Right 2
WINDOW 3 -12 8 Right 2
SYMATTR InstName S1
SYMATTR Value SSHRT
SYMBOL cap -272 -976 R0
SYMATTR InstName C1
SYMATTR Value .47
SYMBOL res 368 -1568 R0
SYMATTR InstName Rload3
SYMATTR Value 70
SYMBOL res -976 -1216 R0
SYMATTR InstName R5
SYMATTR Value 178K
SYMBOL cap 240 -1552 R0
SYMATTR InstName C9
SYMATTR Value 10
SYMBOL voltage -1312 -416 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 PowerProducts\\LT1763-3.3 -1712 -1504 R0
SYMATTR InstName U3
SYMBOL cap -1232 -1376 R0
SYMATTR InstName C6
SYMATTR Value 10
SYMBOL res 368 -1408 R0
SYMATTR InstName Rload2
SYMATTR Value 70
SYMBOL cap -960 -1552 R0
SYMATTR InstName C3
SYMATTR Value 10
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 3.8 10m 1m 1m 10 20)
SYMBOL res -800 -928 R0
SYMATTR InstName R4
SYMATTR Value 49.9K
SYMBOL nmos -240 -1360 R270
WINDOW 0 56 50 VTop 2
WINDOW 3 23 94 VRight 2
SYMATTR InstName Q1
SYMATTR Value Si2316DS
SYMBOL res -1280 -1184 R0
SYMATTR InstName R8
SYMATTR Value 100
SYMBOL res -400 -1584 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 50m
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 -736 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value .01
SYMBOL res -976 -928 R0
SYMATTR InstName R6
SYMATTR Value 49.9K
SYMBOL cap 240 -1232 R0
SYMATTR InstName C11
SYMATTR Value 10
SYMBOL res 368 -1248 R0
SYMATTR InstName Rload1
SYMATTR Value 70
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 nmos -240 -1200 R270
WINDOW 0 56 50 VTop 2
WINDOW 3 23 94 VRight 2
SYMATTR InstName Q2
SYMATTR Value Si2316DS
SYMBOL res -800 -1216 R0
SYMATTR InstName R3
SYMATTR Value 86.6K
SYMBOL res -16 -1088 R0
SYMATTR InstName R2
SYMATTR Value 4.7K
SYMBOL nmos -240 -1520 R270
WINDOW 0 56 50 VTop 2
WINDOW 3 23 94 VRight 2
SYMATTR InstName Q3
SYMATTR Value Si2316DS
SYMBOL LTC2921-3.3 -464 -768 R0
SYMATTR InstName U2
SYMBOL res -1200 -848 R0
SYMATTR InstName R9
SYMATTR Value 100
SYMBOL PowerProducts\\LT1763-1.5 -1712 -784 R0
SYMATTR InstName U4
SYMBOL cap -1456 -1456 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value .01
SYMBOL cap -1456 -1088 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value .01
SYMBOL voltage 768 -1536 R0
SYMATTR InstName V5
SYMATTR Value PULSE(0 1 2 100n 100n 100u 100)
SYMBOL cap -1136 -1216 R0
SYMATTR InstName C7
SYMATTR Value 10
SYMBOL res -1072 -1552 R0
SYMATTR InstName R7
SYMATTR Value 100
SYMBOL cap 240 -1392 R0
SYMATTR InstName C10
SYMATTR Value 10
SYMBOL cap -416 -416 R0
SYMATTR InstName C2
SYMATTR Value .22
SYMBOL nmos -896 -496 R0
SYMATTR InstName Q4
SYMATTR Value BSS123
FLAG 384 -1456 0
FLAG 608 -1440 0
FLAG 768 -1424 0
FLAG 672 -1488 0
FLAG -2176 -1184 0
FLAG -2176 -832 0
FLAG 384 -1296 0
FLAG 384 -1136 0
FLAG -2176 -1552 0
FLAG -256 -896 0
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FLAG -1120 -1136 0
FLAG -1712 -640 0
FLAG -848 -384 0
FLAG -1312 -304 0
FLAG 256 -1456 0
FLAG 256 -1296 0
FLAG 256 -1136 0
TEXT 608 -440 Left 2 !.tran 4
TEXT 320 -1000 Left 2 !.model SSHRT SW(Ron=1 Roff=7 Vt=.5 Vh=-.3)